./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:07:58,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:07:58,434 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:07:58,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:07:58,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:07:58,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:07:58,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:07:58,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:07:58,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:07:58,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:07:58,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:07:58,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:07:58,467 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:07:58,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:07:58,469 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:07:58,469 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:07:58,469 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:07:58,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:07:58,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:07:58,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:07:58,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:07:58,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:07:58,474 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:07:58,474 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:07:58,474 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:07:58,474 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:07:58,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:07:58,475 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:07:58,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:07:58,475 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:07:58,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:07:58,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:07:58,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:07:58,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:07:58,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:07:58,476 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:07:58,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:07:58,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:07:58,477 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:07:58,477 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:07:58,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:07:58,477 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca [2024-10-11 17:07:58,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:07:58,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:07:58,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:07:58,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:07:58,683 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:07:58,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2024-10-11 17:07:59,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:08:00,137 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:08:00,137 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2024-10-11 17:08:00,150 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1e1ea308a/6af166371aaf46c0a29f77315d0e22e9/FLAGe12dd9d0e [2024-10-11 17:08:00,163 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1e1ea308a/6af166371aaf46c0a29f77315d0e22e9 [2024-10-11 17:08:00,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:08:00,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:08:00,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:08:00,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:08:00,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:08:00,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163c14b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00, skipping insertion in model container [2024-10-11 17:08:00,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,209 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:08:00,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:08:00,650 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:08:00,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:08:00,752 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:08:00,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00 WrapperNode [2024-10-11 17:08:00,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:08:00,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:08:00,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:08:00,753 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:08:00,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,804 INFO L138 Inliner]: procedures = 370, calls = 27, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 231 [2024-10-11 17:08:00,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:08:00,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:08:00,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:08:00,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:08:00,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,848 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:08:00,861 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:08:00,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:08:00,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:08:00,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (1/1) ... [2024-10-11 17:08:00,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:08:00,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:00,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:08:00,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:08:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:08:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:08:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:08:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:08:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:08:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:08:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:08:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:08:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:08:00,929 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:08:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:08:00,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:08:00,931 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:08:01,037 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:08:01,038 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:08:01,406 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:08:01,406 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:08:01,439 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:08:01,439 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 17:08:01,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:08:01 BoogieIcfgContainer [2024-10-11 17:08:01,440 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:08:01,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:08:01,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:08:01,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:08:01,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:08:00" (1/3) ... [2024-10-11 17:08:01,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6581ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:08:01, skipping insertion in model container [2024-10-11 17:08:01,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:00" (2/3) ... [2024-10-11 17:08:01,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6581ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:08:01, skipping insertion in model container [2024-10-11 17:08:01,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:08:01" (3/3) ... [2024-10-11 17:08:01,446 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_18-nested_rc.i [2024-10-11 17:08:01,460 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:08:01,460 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-11 17:08:01,460 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:08:01,559 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:08:01,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 273 transitions, 550 flow [2024-10-11 17:08:01,664 INFO L124 PetriNetUnfolderBase]: 4/272 cut-off events. [2024-10-11 17:08:01,665 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:01,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 4/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 144. Up to 2 conditions per place. [2024-10-11 17:08:01,670 INFO L82 GeneralOperation]: Start removeDead. Operand has 273 places, 273 transitions, 550 flow [2024-10-11 17:08:01,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 272 transitions, 547 flow [2024-10-11 17:08:01,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:08:01,694 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;@6ba4a69b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:08:01,694 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-11 17:08:01,702 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:08:01,702 INFO L124 PetriNetUnfolderBase]: 3/44 cut-off events. [2024-10-11 17:08:01,702 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:01,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:01,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:01,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:01,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:01,708 INFO L85 PathProgramCache]: Analyzing trace with hash 598431586, now seen corresponding path program 1 times [2024-10-11 17:08:01,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:01,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703941894] [2024-10-11 17:08:01,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:01,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:01,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:01,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:01,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703941894] [2024-10-11 17:08:01,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703941894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:01,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:01,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:08:01,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206178981] [2024-10-11 17:08:01,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:01,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:08:01,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:01,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:08:01,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:08:01,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 273 [2024-10-11 17:08:01,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 272 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:02,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:02,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 273 [2024-10-11 17:08:02,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:02,079 INFO L124 PetriNetUnfolderBase]: 7/349 cut-off events. [2024-10-11 17:08:02,079 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:08:02,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 349 events. 7/349 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 403 event pairs, 6 based on Foata normal form. 5/324 useless extension candidates. Maximal degree in co-relation 219. Up to 24 conditions per place. [2024-10-11 17:08:02,082 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 10 selfloop transitions, 2 changer transitions 1/270 dead transitions. [2024-10-11 17:08:02,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 270 transitions, 567 flow [2024-10-11 17:08:02,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:08:02,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:08:02,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 794 transitions. [2024-10-11 17:08:02,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9694749694749695 [2024-10-11 17:08:02,101 INFO L175 Difference]: Start difference. First operand has 272 places, 272 transitions, 547 flow. Second operand 3 states and 794 transitions. [2024-10-11 17:08:02,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 270 transitions, 567 flow [2024-10-11 17:08:02,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 270 transitions, 566 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:02,111 INFO L231 Difference]: Finished difference. Result has 274 places, 269 transitions, 550 flow [2024-10-11 17:08:02,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=274, PETRI_TRANSITIONS=269} [2024-10-11 17:08:02,115 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 2 predicate places. [2024-10-11 17:08:02,115 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 269 transitions, 550 flow [2024-10-11 17:08:02,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:02,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:02,117 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:02,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:08:02,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:02,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:02,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1023670055, now seen corresponding path program 1 times [2024-10-11 17:08:02,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:02,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894458590] [2024-10-11 17:08:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:02,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:02,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:02,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894458590] [2024-10-11 17:08:02,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894458590] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:02,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433949316] [2024-10-11 17:08:02,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:02,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:02,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:02,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:02,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:08:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:02,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:08:02,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:02,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:02,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:02,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433949316] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:02,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:02,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:08:02,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883123105] [2024-10-11 17:08:02,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:02,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:08:02,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:02,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:08:02,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:08:02,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 273 [2024-10-11 17:08:02,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 269 transitions, 550 flow. Second operand has 10 states, 10 states have (on average 257.8) internal successors, (2578), 10 states have internal predecessors, (2578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:02,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:02,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 273 [2024-10-11 17:08:02,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:02,668 INFO L124 PetriNetUnfolderBase]: 7/355 cut-off events. [2024-10-11 17:08:02,669 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:08:02,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 355 events. 7/355 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 397 event pairs, 6 based on Foata normal form. 2/328 useless extension candidates. Maximal degree in co-relation 377. Up to 24 conditions per place. [2024-10-11 17:08:02,671 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 14 selfloop transitions, 9 changer transitions 0/277 dead transitions. [2024-10-11 17:08:02,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 277 transitions, 614 flow [2024-10-11 17:08:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:08:02,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:08:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2329 transitions. [2024-10-11 17:08:02,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9479039479039479 [2024-10-11 17:08:02,676 INFO L175 Difference]: Start difference. First operand has 274 places, 269 transitions, 550 flow. Second operand 9 states and 2329 transitions. [2024-10-11 17:08:02,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 277 transitions, 614 flow [2024-10-11 17:08:02,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 277 transitions, 612 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:02,680 INFO L231 Difference]: Finished difference. Result has 283 places, 275 transitions, 598 flow [2024-10-11 17:08:02,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=598, PETRI_PLACES=283, PETRI_TRANSITIONS=275} [2024-10-11 17:08:02,681 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 11 predicate places. [2024-10-11 17:08:02,682 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 275 transitions, 598 flow [2024-10-11 17:08:02,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 257.8) internal successors, (2578), 10 states have internal predecessors, (2578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:02,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:02,684 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:02,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 17:08:02,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:02,888 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:02,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:02,888 INFO L85 PathProgramCache]: Analyzing trace with hash -943925241, now seen corresponding path program 2 times [2024-10-11 17:08:02,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:02,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276688019] [2024-10-11 17:08:02,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:02,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:03,020 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:03,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:03,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276688019] [2024-10-11 17:08:03,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276688019] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:03,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021260514] [2024-10-11 17:08:03,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:03,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:03,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:03,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:03,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:08:03,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:03,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:03,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 17:08:03,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:03,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:08:03,138 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 21 treesize of output 20 [2024-10-11 17:08:03,170 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:03,171 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 30 treesize of output 32 [2024-10-11 17:08:03,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:03,201 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 39 treesize of output 44 [2024-10-11 17:08:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 17:08:03,223 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:03,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021260514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:03,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:03,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-11 17:08:03,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031742427] [2024-10-11 17:08:03,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:03,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:03,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:03,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:03,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:03,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 273 [2024-10-11 17:08:03,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 275 transitions, 598 flow. Second operand has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:03,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:03,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 273 [2024-10-11 17:08:03,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:03,875 INFO L124 PetriNetUnfolderBase]: 365/1639 cut-off events. [2024-10-11 17:08:03,875 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-11 17:08:03,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 1639 events. 365/1639 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9287 event pairs, 364 based on Foata normal form. 0/1514 useless extension candidates. Maximal degree in co-relation 2428. Up to 800 conditions per place. [2024-10-11 17:08:03,883 INFO L140 encePairwiseOnDemand]: 261/273 looper letters, 71 selfloop transitions, 10 changer transitions 0/273 dead transitions. [2024-10-11 17:08:03,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 273 transitions, 756 flow [2024-10-11 17:08:03,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:03,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:03,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2024-10-11 17:08:03,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7356532356532357 [2024-10-11 17:08:03,887 INFO L175 Difference]: Start difference. First operand has 283 places, 275 transitions, 598 flow. Second operand 6 states and 1205 transitions. [2024-10-11 17:08:03,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 273 transitions, 756 flow [2024-10-11 17:08:03,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 273 transitions, 750 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:03,891 INFO L231 Difference]: Finished difference. Result has 285 places, 273 transitions, 608 flow [2024-10-11 17:08:03,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=608, PETRI_PLACES=285, PETRI_TRANSITIONS=273} [2024-10-11 17:08:03,892 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 13 predicate places. [2024-10-11 17:08:03,892 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 273 transitions, 608 flow [2024-10-11 17:08:03,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:03,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:03,893 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:03,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:08:04,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:04,097 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:04,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:04,099 INFO L85 PathProgramCache]: Analyzing trace with hash -359144855, now seen corresponding path program 1 times [2024-10-11 17:08:04,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:04,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182293529] [2024-10-11 17:08:04,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:04,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:04,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:04,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182293529] [2024-10-11 17:08:04,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182293529] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:04,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483212257] [2024-10-11 17:08:04,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:04,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:04,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:04,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:04,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:08:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:04,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:08:04,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:04,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:04,450 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:04,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483212257] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:04,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:04,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-11 17:08:04,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801713728] [2024-10-11 17:08:04,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:04,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:08:04,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:04,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:08:04,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:08:04,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 273 [2024-10-11 17:08:04,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 273 transitions, 608 flow. Second operand has 18 states, 18 states have (on average 257.8888888888889) internal successors, (4642), 18 states have internal predecessors, (4642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:04,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:04,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 273 [2024-10-11 17:08:04,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:04,651 INFO L124 PetriNetUnfolderBase]: 7/373 cut-off events. [2024-10-11 17:08:04,651 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-11 17:08:04,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 373 events. 7/373 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 398 event pairs, 6 based on Foata normal form. 4/350 useless extension candidates. Maximal degree in co-relation 363. Up to 24 conditions per place. [2024-10-11 17:08:04,653 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 18 selfloop transitions, 21 changer transitions 0/291 dead transitions. [2024-10-11 17:08:04,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 291 transitions, 774 flow [2024-10-11 17:08:04,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 17:08:04,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 17:08:04,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5419 transitions. [2024-10-11 17:08:04,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9452293738008024 [2024-10-11 17:08:04,659 INFO L175 Difference]: Start difference. First operand has 285 places, 273 transitions, 608 flow. Second operand 21 states and 5419 transitions. [2024-10-11 17:08:04,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 291 transitions, 774 flow [2024-10-11 17:08:04,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 291 transitions, 754 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:04,663 INFO L231 Difference]: Finished difference. Result has 305 places, 286 transitions, 718 flow [2024-10-11 17:08:04,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=718, PETRI_PLACES=305, PETRI_TRANSITIONS=286} [2024-10-11 17:08:04,664 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 33 predicate places. [2024-10-11 17:08:04,664 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 286 transitions, 718 flow [2024-10-11 17:08:04,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 257.8888888888889) internal successors, (4642), 18 states have internal predecessors, (4642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:04,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:04,667 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:04,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 17:08:04,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:04,872 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:04,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:04,872 INFO L85 PathProgramCache]: Analyzing trace with hash 377429033, now seen corresponding path program 2 times [2024-10-11 17:08:04,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:04,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902392708] [2024-10-11 17:08:04,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:04,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:05,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:05,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902392708] [2024-10-11 17:08:05,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902392708] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:05,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911253462] [2024-10-11 17:08:05,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:05,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:05,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:05,096 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:05,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:08:05,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:05,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:05,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 17:08:05,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:05,189 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 13 treesize of output 9 [2024-10-11 17:08:05,204 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 23 treesize of output 22 [2024-10-11 17:08:05,241 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:05,241 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 32 treesize of output 34 [2024-10-11 17:08:05,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:05,272 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 41 treesize of output 46 [2024-10-11 17:08:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-11 17:08:05,295 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:05,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911253462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:05,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:05,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:08:05,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735975690] [2024-10-11 17:08:05,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:05,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:05,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:05,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:05,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:08:05,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 273 [2024-10-11 17:08:05,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 286 transitions, 718 flow. Second operand has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:05,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:05,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 273 [2024-10-11 17:08:05,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:05,926 INFO L124 PetriNetUnfolderBase]: 365/1657 cut-off events. [2024-10-11 17:08:05,926 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-10-11 17:08:05,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2562 conditions, 1657 events. 365/1657 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9243 event pairs, 364 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 2430. Up to 800 conditions per place. [2024-10-11 17:08:05,932 INFO L140 encePairwiseOnDemand]: 261/273 looper letters, 71 selfloop transitions, 10 changer transitions 0/284 dead transitions. [2024-10-11 17:08:05,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 284 transitions, 876 flow [2024-10-11 17:08:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:05,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:05,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2024-10-11 17:08:05,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7356532356532357 [2024-10-11 17:08:05,935 INFO L175 Difference]: Start difference. First operand has 305 places, 286 transitions, 718 flow. Second operand 6 states and 1205 transitions. [2024-10-11 17:08:05,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 284 transitions, 876 flow [2024-10-11 17:08:05,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 284 transitions, 852 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 17:08:05,943 INFO L231 Difference]: Finished difference. Result has 302 places, 284 transitions, 710 flow [2024-10-11 17:08:05,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=710, PETRI_PLACES=302, PETRI_TRANSITIONS=284} [2024-10-11 17:08:05,944 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 30 predicate places. [2024-10-11 17:08:05,945 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 284 transitions, 710 flow [2024-10-11 17:08:05,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:05,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:05,946 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:05,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 17:08:06,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:06,147 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:06,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:06,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1054632777, now seen corresponding path program 1 times [2024-10-11 17:08:06,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:06,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035642143] [2024-10-11 17:08:06,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:06,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:06,390 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:06,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:06,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035642143] [2024-10-11 17:08:06,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035642143] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:06,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058178489] [2024-10-11 17:08:06,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:06,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:06,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:06,393 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:06,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:08:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:06,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:08:06,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:06,556 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:06,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:06,716 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:06,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058178489] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:06,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:06,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-11 17:08:06,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888866649] [2024-10-11 17:08:06,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:06,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:08:06,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:06,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:08:06,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:08:06,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 273 [2024-10-11 17:08:06,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 284 transitions, 710 flow. Second operand has 23 states, 23 states have (on average 258.0) internal successors, (5934), 23 states have internal predecessors, (5934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:06,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:06,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 273 [2024-10-11 17:08:06,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:07,035 INFO L124 PetriNetUnfolderBase]: 7/386 cut-off events. [2024-10-11 17:08:07,035 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-10-11 17:08:07,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 386 events. 7/386 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 399 event pairs, 6 based on Foata normal form. 3/364 useless extension candidates. Maximal degree in co-relation 368. Up to 24 conditions per place. [2024-10-11 17:08:07,037 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 21 selfloop transitions, 30 changer transitions 0/301 dead transitions. [2024-10-11 17:08:07,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 301 transitions, 934 flow [2024-10-11 17:08:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-11 17:08:07,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-11 17:08:07,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7734 transitions. [2024-10-11 17:08:07,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9443223443223443 [2024-10-11 17:08:07,046 INFO L175 Difference]: Start difference. First operand has 302 places, 284 transitions, 710 flow. Second operand 30 states and 7734 transitions. [2024-10-11 17:08:07,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 301 transitions, 934 flow [2024-10-11 17:08:07,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 301 transitions, 914 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:07,050 INFO L231 Difference]: Finished difference. Result has 330 places, 294 transitions, 842 flow [2024-10-11 17:08:07,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=842, PETRI_PLACES=330, PETRI_TRANSITIONS=294} [2024-10-11 17:08:07,051 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 58 predicate places. [2024-10-11 17:08:07,051 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 294 transitions, 842 flow [2024-10-11 17:08:07,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 258.0) internal successors, (5934), 23 states have internal predecessors, (5934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:07,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:07,053 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:07,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 17:08:07,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:07,254 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:07,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:07,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1927391996, now seen corresponding path program 2 times [2024-10-11 17:08:07,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:07,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418318370] [2024-10-11 17:08:07,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:07,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:07,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:07,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418318370] [2024-10-11 17:08:07,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418318370] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:07,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:07,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:07,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676208316] [2024-10-11 17:08:07,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:07,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:07,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:07,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:07,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:07,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 273 [2024-10-11 17:08:07,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 294 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 185.83333333333334) internal successors, (1115), 6 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:07,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:07,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 273 [2024-10-11 17:08:07,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:08,168 INFO L124 PetriNetUnfolderBase]: 417/1851 cut-off events. [2024-10-11 17:08:08,168 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-10-11 17:08:08,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2933 conditions, 1851 events. 417/1851 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10712 event pairs, 416 based on Foata normal form. 0/1719 useless extension candidates. Maximal degree in co-relation 2722. Up to 914 conditions per place. [2024-10-11 17:08:08,175 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 81 selfloop transitions, 5 changer transitions 0/293 dead transitions. [2024-10-11 17:08:08,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 293 transitions, 1012 flow [2024-10-11 17:08:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:08,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1185 transitions. [2024-10-11 17:08:08,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7234432234432234 [2024-10-11 17:08:08,178 INFO L175 Difference]: Start difference. First operand has 330 places, 294 transitions, 842 flow. Second operand 6 states and 1185 transitions. [2024-10-11 17:08:08,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 293 transitions, 1012 flow [2024-10-11 17:08:08,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 293 transitions, 966 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-11 17:08:08,182 INFO L231 Difference]: Finished difference. Result has 316 places, 293 transitions, 804 flow [2024-10-11 17:08:08,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=316, PETRI_TRANSITIONS=293} [2024-10-11 17:08:08,183 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 44 predicate places. [2024-10-11 17:08:08,183 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 293 transitions, 804 flow [2024-10-11 17:08:08,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.83333333333334) internal successors, (1115), 6 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:08,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:08,184 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:08,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:08:08,184 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:08,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:08,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1099792604, now seen corresponding path program 1 times [2024-10-11 17:08:08,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:08,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789562955] [2024-10-11 17:08:08,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:08,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:08,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:08,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789562955] [2024-10-11 17:08:08,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789562955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:08,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:08,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179735550] [2024-10-11 17:08:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:08,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:08,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:08,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 273 [2024-10-11 17:08:08,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 293 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:08,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:08,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 273 [2024-10-11 17:08:08,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:09,284 INFO L124 PetriNetUnfolderBase]: 257/1701 cut-off events. [2024-10-11 17:08:09,284 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-10-11 17:08:09,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2431 conditions, 1701 events. 257/1701 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10124 event pairs, 34 based on Foata normal form. 0/1572 useless extension candidates. Maximal degree in co-relation 2241. Up to 436 conditions per place. [2024-10-11 17:08:09,291 INFO L140 encePairwiseOnDemand]: 244/273 looper letters, 68 selfloop transitions, 75 changer transitions 0/370 dead transitions. [2024-10-11 17:08:09,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 370 transitions, 1244 flow [2024-10-11 17:08:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:09,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1369 transitions. [2024-10-11 17:08:09,294 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8357753357753358 [2024-10-11 17:08:09,294 INFO L175 Difference]: Start difference. First operand has 316 places, 293 transitions, 804 flow. Second operand 6 states and 1369 transitions. [2024-10-11 17:08:09,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 370 transitions, 1244 flow [2024-10-11 17:08:09,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 370 transitions, 1234 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:09,300 INFO L231 Difference]: Finished difference. Result has 320 places, 361 transitions, 1274 flow [2024-10-11 17:08:09,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1274, PETRI_PLACES=320, PETRI_TRANSITIONS=361} [2024-10-11 17:08:09,301 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 48 predicate places. [2024-10-11 17:08:09,301 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 361 transitions, 1274 flow [2024-10-11 17:08:09,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:09,302 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:09,302 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:09,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:08:09,302 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:09,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:09,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1613199059, now seen corresponding path program 1 times [2024-10-11 17:08:09,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:09,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424694418] [2024-10-11 17:08:09,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:09,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:09,655 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:09,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:09,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424694418] [2024-10-11 17:08:09,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424694418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:09,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:09,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:09,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285024094] [2024-10-11 17:08:09,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:09,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:09,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:09,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:09,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:10,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 273 [2024-10-11 17:08:10,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 361 transitions, 1274 flow. Second operand has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:10,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:10,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 273 [2024-10-11 17:08:10,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:10,236 INFO L124 PetriNetUnfolderBase]: 209/1566 cut-off events. [2024-10-11 17:08:10,236 INFO L125 PetriNetUnfolderBase]: For 477/499 co-relation queries the response was YES. [2024-10-11 17:08:10,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2687 conditions, 1566 events. 209/1566 cut-off events. For 477/499 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8679 event pairs, 53 based on Foata normal form. 0/1451 useless extension candidates. Maximal degree in co-relation 2495. Up to 336 conditions per place. [2024-10-11 17:08:10,244 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 117 selfloop transitions, 5 changer transitions 0/360 dead transitions. [2024-10-11 17:08:10,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 360 transitions, 1516 flow [2024-10-11 17:08:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:10,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1325 transitions. [2024-10-11 17:08:10,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8089133089133089 [2024-10-11 17:08:10,249 INFO L175 Difference]: Start difference. First operand has 320 places, 361 transitions, 1274 flow. Second operand 6 states and 1325 transitions. [2024-10-11 17:08:10,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 360 transitions, 1516 flow [2024-10-11 17:08:10,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 360 transitions, 1516 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:10,258 INFO L231 Difference]: Finished difference. Result has 324 places, 360 transitions, 1282 flow [2024-10-11 17:08:10,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1282, PETRI_PLACES=324, PETRI_TRANSITIONS=360} [2024-10-11 17:08:10,259 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 52 predicate places. [2024-10-11 17:08:10,259 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 360 transitions, 1282 flow [2024-10-11 17:08:10,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:10,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:10,260 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:10,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:08:10,261 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:10,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:10,261 INFO L85 PathProgramCache]: Analyzing trace with hash 233424060, now seen corresponding path program 1 times [2024-10-11 17:08:10,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:10,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834899994] [2024-10-11 17:08:10,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:10,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:10,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:10,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834899994] [2024-10-11 17:08:10,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834899994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:10,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:10,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:10,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118734245] [2024-10-11 17:08:10,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:10,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:10,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:10,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:10,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:10,813 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 273 [2024-10-11 17:08:10,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 360 transitions, 1282 flow. Second operand has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:10,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:10,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 273 [2024-10-11 17:08:10,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:11,197 INFO L124 PetriNetUnfolderBase]: 717/2926 cut-off events. [2024-10-11 17:08:11,197 INFO L125 PetriNetUnfolderBase]: For 950/1011 co-relation queries the response was YES. [2024-10-11 17:08:11,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5698 conditions, 2926 events. 717/2926 cut-off events. For 950/1011 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 20053 event pairs, 399 based on Foata normal form. 0/2705 useless extension candidates. Maximal degree in co-relation 5505. Up to 1485 conditions per place. [2024-10-11 17:08:11,270 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 146 selfloop transitions, 5 changer transitions 0/359 dead transitions. [2024-10-11 17:08:11,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 359 transitions, 1582 flow [2024-10-11 17:08:11,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:11,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:11,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1195 transitions. [2024-10-11 17:08:11,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7295482295482295 [2024-10-11 17:08:11,273 INFO L175 Difference]: Start difference. First operand has 324 places, 360 transitions, 1282 flow. Second operand 6 states and 1195 transitions. [2024-10-11 17:08:11,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 359 transitions, 1582 flow [2024-10-11 17:08:11,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 359 transitions, 1572 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:11,279 INFO L231 Difference]: Finished difference. Result has 323 places, 359 transitions, 1280 flow [2024-10-11 17:08:11,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1280, PETRI_PLACES=323, PETRI_TRANSITIONS=359} [2024-10-11 17:08:11,281 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 51 predicate places. [2024-10-11 17:08:11,281 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 359 transitions, 1280 flow [2024-10-11 17:08:11,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:11,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:11,282 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:11,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:08:11,282 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:11,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:11,282 INFO L85 PathProgramCache]: Analyzing trace with hash -108867941, now seen corresponding path program 1 times [2024-10-11 17:08:11,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:11,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228301044] [2024-10-11 17:08:11,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:11,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:11,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:11,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228301044] [2024-10-11 17:08:11,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228301044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:11,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:11,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:11,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159571945] [2024-10-11 17:08:11,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:11,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:11,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:11,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:11,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:12,167 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 273 [2024-10-11 17:08:12,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 359 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:12,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:12,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 273 [2024-10-11 17:08:12,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:12,494 INFO L124 PetriNetUnfolderBase]: 717/2925 cut-off events. [2024-10-11 17:08:12,494 INFO L125 PetriNetUnfolderBase]: For 952/1013 co-relation queries the response was YES. [2024-10-11 17:08:12,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5696 conditions, 2925 events. 717/2925 cut-off events. For 952/1013 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 19973 event pairs, 399 based on Foata normal form. 0/2705 useless extension candidates. Maximal degree in co-relation 5503. Up to 1484 conditions per place. [2024-10-11 17:08:12,507 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 145 selfloop transitions, 5 changer transitions 0/358 dead transitions. [2024-10-11 17:08:12,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 358 transitions, 1578 flow [2024-10-11 17:08:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:12,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:12,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1200 transitions. [2024-10-11 17:08:12,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7326007326007326 [2024-10-11 17:08:12,509 INFO L175 Difference]: Start difference. First operand has 323 places, 359 transitions, 1280 flow. Second operand 6 states and 1200 transitions. [2024-10-11 17:08:12,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 358 transitions, 1578 flow [2024-10-11 17:08:12,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 358 transitions, 1568 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:12,516 INFO L231 Difference]: Finished difference. Result has 322 places, 358 transitions, 1278 flow [2024-10-11 17:08:12,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1278, PETRI_PLACES=322, PETRI_TRANSITIONS=358} [2024-10-11 17:08:12,517 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 50 predicate places. [2024-10-11 17:08:12,517 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 358 transitions, 1278 flow [2024-10-11 17:08:12,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:12,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:12,517 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:12,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:08:12,518 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:12,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:12,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1812992791, now seen corresponding path program 1 times [2024-10-11 17:08:12,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:12,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901665619] [2024-10-11 17:08:12,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:12,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:12,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:12,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901665619] [2024-10-11 17:08:12,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901665619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:12,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:12,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:12,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605290454] [2024-10-11 17:08:12,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:12,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:12,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:12,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:12,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:13,271 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 273 [2024-10-11 17:08:13,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 358 transitions, 1278 flow. Second operand has 6 states, 6 states have (on average 217.16666666666666) internal successors, (1303), 6 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:13,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:13,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 273 [2024-10-11 17:08:13,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:13,686 INFO L124 PetriNetUnfolderBase]: 530/2482 cut-off events. [2024-10-11 17:08:13,686 INFO L125 PetriNetUnfolderBase]: For 952/1054 co-relation queries the response was YES. [2024-10-11 17:08:13,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4684 conditions, 2482 events. 530/2482 cut-off events. For 952/1054 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16120 event pairs, 93 based on Foata normal form. 16/2333 useless extension candidates. Maximal degree in co-relation 4490. Up to 813 conditions per place. [2024-10-11 17:08:13,698 INFO L140 encePairwiseOnDemand]: 250/273 looper letters, 131 selfloop transitions, 130 changer transitions 0/495 dead transitions. [2024-10-11 17:08:13,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 495 transitions, 2450 flow [2024-10-11 17:08:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:13,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:13,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1403 transitions. [2024-10-11 17:08:13,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8565323565323565 [2024-10-11 17:08:13,701 INFO L175 Difference]: Start difference. First operand has 322 places, 358 transitions, 1278 flow. Second operand 6 states and 1403 transitions. [2024-10-11 17:08:13,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 495 transitions, 2450 flow [2024-10-11 17:08:13,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 495 transitions, 2440 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:13,709 INFO L231 Difference]: Finished difference. Result has 327 places, 487 transitions, 2496 flow [2024-10-11 17:08:13,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2496, PETRI_PLACES=327, PETRI_TRANSITIONS=487} [2024-10-11 17:08:13,710 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 55 predicate places. [2024-10-11 17:08:13,710 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 487 transitions, 2496 flow [2024-10-11 17:08:13,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.16666666666666) internal successors, (1303), 6 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:13,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:13,711 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:13,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:08:13,711 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:13,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:13,712 INFO L85 PathProgramCache]: Analyzing trace with hash -151152579, now seen corresponding path program 1 times [2024-10-11 17:08:13,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:13,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024674959] [2024-10-11 17:08:13,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:13,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:14,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:14,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024674959] [2024-10-11 17:08:14,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024674959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:14,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:14,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:14,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881805794] [2024-10-11 17:08:14,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:14,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:14,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:14,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:14,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:14,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 273 [2024-10-11 17:08:14,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 487 transitions, 2496 flow. Second operand has 6 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:14,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:14,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 273 [2024-10-11 17:08:14,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:15,050 INFO L124 PetriNetUnfolderBase]: 806/3224 cut-off events. [2024-10-11 17:08:15,050 INFO L125 PetriNetUnfolderBase]: For 3385/3601 co-relation queries the response was YES. [2024-10-11 17:08:15,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7519 conditions, 3224 events. 806/3224 cut-off events. For 3385/3601 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22190 event pairs, 65 based on Foata normal form. 52/3111 useless extension candidates. Maximal degree in co-relation 7321. Up to 1071 conditions per place. [2024-10-11 17:08:15,065 INFO L140 encePairwiseOnDemand]: 250/273 looper letters, 251 selfloop transitions, 131 changer transitions 5/625 dead transitions. [2024-10-11 17:08:15,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 625 transitions, 4170 flow [2024-10-11 17:08:15,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:15,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:15,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1404 transitions. [2024-10-11 17:08:15,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2024-10-11 17:08:15,068 INFO L175 Difference]: Start difference. First operand has 327 places, 487 transitions, 2496 flow. Second operand 6 states and 1404 transitions. [2024-10-11 17:08:15,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 625 transitions, 4170 flow [2024-10-11 17:08:15,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 625 transitions, 4170 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:15,081 INFO L231 Difference]: Finished difference. Result has 337 places, 615 transitions, 3976 flow [2024-10-11 17:08:15,081 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=2496, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3976, PETRI_PLACES=337, PETRI_TRANSITIONS=615} [2024-10-11 17:08:15,081 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 65 predicate places. [2024-10-11 17:08:15,082 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 615 transitions, 3976 flow [2024-10-11 17:08:15,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:15,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:15,082 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:15,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 17:08:15,083 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:15,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:15,083 INFO L85 PathProgramCache]: Analyzing trace with hash 976951538, now seen corresponding path program 1 times [2024-10-11 17:08:15,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:15,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622774684] [2024-10-11 17:08:15,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:15,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:15,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:15,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622774684] [2024-10-11 17:08:15,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622774684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:15,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:15,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:15,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560130654] [2024-10-11 17:08:15,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:15,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:15,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:15,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:15,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:15,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:08:15,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 615 transitions, 3976 flow. Second operand has 6 states, 6 states have (on average 197.66666666666666) internal successors, (1186), 6 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:15,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:15,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:08:15,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:16,438 INFO L124 PetriNetUnfolderBase]: 1308/4592 cut-off events. [2024-10-11 17:08:16,438 INFO L125 PetriNetUnfolderBase]: For 4865/4922 co-relation queries the response was YES. [2024-10-11 17:08:16,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12157 conditions, 4592 events. 1308/4592 cut-off events. For 4865/4922 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33815 event pairs, 369 based on Foata normal form. 11/4358 useless extension candidates. Maximal degree in co-relation 11955. Up to 2225 conditions per place. [2024-10-11 17:08:16,456 INFO L140 encePairwiseOnDemand]: 254/273 looper letters, 316 selfloop transitions, 84 changer transitions 0/694 dead transitions. [2024-10-11 17:08:16,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 694 transitions, 5174 flow [2024-10-11 17:08:16,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:16,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:16,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1282 transitions. [2024-10-11 17:08:16,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7826617826617827 [2024-10-11 17:08:16,458 INFO L175 Difference]: Start difference. First operand has 337 places, 615 transitions, 3976 flow. Second operand 6 states and 1282 transitions. [2024-10-11 17:08:16,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 694 transitions, 5174 flow [2024-10-11 17:08:16,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 694 transitions, 4920 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:16,478 INFO L231 Difference]: Finished difference. Result has 346 places, 686 transitions, 4512 flow [2024-10-11 17:08:16,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=3728, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4512, PETRI_PLACES=346, PETRI_TRANSITIONS=686} [2024-10-11 17:08:16,479 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 74 predicate places. [2024-10-11 17:08:16,479 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 686 transitions, 4512 flow [2024-10-11 17:08:16,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.66666666666666) internal successors, (1186), 6 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:16,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:16,480 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:16,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 17:08:16,480 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:16,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:16,480 INFO L85 PathProgramCache]: Analyzing trace with hash 691822610, now seen corresponding path program 1 times [2024-10-11 17:08:16,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:16,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047920813] [2024-10-11 17:08:16,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:16,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:17,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:17,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047920813] [2024-10-11 17:08:17,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047920813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:17,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:17,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:17,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906704255] [2024-10-11 17:08:17,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:17,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:17,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:17,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:17,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:18,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:08:18,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 686 transitions, 4512 flow. Second operand has 13 states, 13 states have (on average 194.6153846153846) internal successors, (2530), 13 states have internal predecessors, (2530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:18,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:18,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:08:18,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:19,356 INFO L124 PetriNetUnfolderBase]: 1021/3854 cut-off events. [2024-10-11 17:08:19,356 INFO L125 PetriNetUnfolderBase]: For 6228/6457 co-relation queries the response was YES. [2024-10-11 17:08:19,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11416 conditions, 3854 events. 1021/3854 cut-off events. For 6228/6457 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 27647 event pairs, 69 based on Foata normal form. 32/3739 useless extension candidates. Maximal degree in co-relation 11206. Up to 892 conditions per place. [2024-10-11 17:08:19,379 INFO L140 encePairwiseOnDemand]: 246/273 looper letters, 405 selfloop transitions, 147 changer transitions 1/811 dead transitions. [2024-10-11 17:08:19,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 811 transitions, 6552 flow [2024-10-11 17:08:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 17:08:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-11 17:08:19,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3590 transitions. [2024-10-11 17:08:19,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7305657305657306 [2024-10-11 17:08:19,383 INFO L175 Difference]: Start difference. First operand has 346 places, 686 transitions, 4512 flow. Second operand 18 states and 3590 transitions. [2024-10-11 17:08:19,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 811 transitions, 6552 flow [2024-10-11 17:08:19,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 811 transitions, 6480 flow, removed 36 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:19,414 INFO L231 Difference]: Finished difference. Result has 374 places, 743 transitions, 5470 flow [2024-10-11 17:08:19,414 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=4458, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5470, PETRI_PLACES=374, PETRI_TRANSITIONS=743} [2024-10-11 17:08:19,415 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 102 predicate places. [2024-10-11 17:08:19,415 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 743 transitions, 5470 flow [2024-10-11 17:08:19,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.6153846153846) internal successors, (2530), 13 states have internal predecessors, (2530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:19,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:19,417 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:19,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 17:08:19,417 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:19,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:19,417 INFO L85 PathProgramCache]: Analyzing trace with hash -64026824, now seen corresponding path program 2 times [2024-10-11 17:08:19,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:19,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142079795] [2024-10-11 17:08:19,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:19,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:20,286 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:20,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:20,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142079795] [2024-10-11 17:08:20,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142079795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:20,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:20,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:20,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462137346] [2024-10-11 17:08:20,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:20,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:20,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:20,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:20,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:21,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:08:21,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 743 transitions, 5470 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:21,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:21,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:08:21,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:22,837 INFO L124 PetriNetUnfolderBase]: 1465/5597 cut-off events. [2024-10-11 17:08:22,837 INFO L125 PetriNetUnfolderBase]: For 13237/13579 co-relation queries the response was YES. [2024-10-11 17:08:22,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17599 conditions, 5597 events. 1465/5597 cut-off events. For 13237/13579 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 45671 event pairs, 94 based on Foata normal form. 167/5574 useless extension candidates. Maximal degree in co-relation 17375. Up to 1307 conditions per place. [2024-10-11 17:08:22,865 INFO L140 encePairwiseOnDemand]: 235/273 looper letters, 423 selfloop transitions, 265 changer transitions 4/950 dead transitions. [2024-10-11 17:08:22,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 950 transitions, 8682 flow [2024-10-11 17:08:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 17:08:22,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 17:08:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2479 transitions. [2024-10-11 17:08:22,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7567155067155067 [2024-10-11 17:08:22,868 INFO L175 Difference]: Start difference. First operand has 374 places, 743 transitions, 5470 flow. Second operand 12 states and 2479 transitions. [2024-10-11 17:08:22,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 950 transitions, 8682 flow [2024-10-11 17:08:22,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 950 transitions, 8632 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:22,915 INFO L231 Difference]: Finished difference. Result has 385 places, 844 transitions, 7669 flow [2024-10-11 17:08:22,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=5442, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=743, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7669, PETRI_PLACES=385, PETRI_TRANSITIONS=844} [2024-10-11 17:08:22,916 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 113 predicate places. [2024-10-11 17:08:22,916 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 844 transitions, 7669 flow [2024-10-11 17:08:22,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:22,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:22,917 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:22,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 17:08:22,918 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:22,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:22,918 INFO L85 PathProgramCache]: Analyzing trace with hash 720592500, now seen corresponding path program 3 times [2024-10-11 17:08:22,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:22,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520450860] [2024-10-11 17:08:22,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:22,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:23,686 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:23,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:23,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520450860] [2024-10-11 17:08:23,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520450860] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:23,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:23,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:23,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963786841] [2024-10-11 17:08:23,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:23,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:23,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:23,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:23,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:24,978 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:08:24,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 844 transitions, 7669 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:24,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:24,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:08:24,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:26,500 INFO L124 PetriNetUnfolderBase]: 2060/7662 cut-off events. [2024-10-11 17:08:26,501 INFO L125 PetriNetUnfolderBase]: For 26239/26769 co-relation queries the response was YES. [2024-10-11 17:08:26,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25759 conditions, 7662 events. 2060/7662 cut-off events. For 26239/26769 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 68177 event pairs, 142 based on Foata normal form. 247/7636 useless extension candidates. Maximal degree in co-relation 25529. Up to 1697 conditions per place. [2024-10-11 17:08:26,555 INFO L140 encePairwiseOnDemand]: 237/273 looper letters, 552 selfloop transitions, 326 changer transitions 2/1138 dead transitions. [2024-10-11 17:08:26,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 1138 transitions, 12647 flow [2024-10-11 17:08:26,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 17:08:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-11 17:08:26,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3432 transitions. [2024-10-11 17:08:26,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7394957983193278 [2024-10-11 17:08:26,560 INFO L175 Difference]: Start difference. First operand has 385 places, 844 transitions, 7669 flow. Second operand 17 states and 3432 transitions. [2024-10-11 17:08:26,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 1138 transitions, 12647 flow [2024-10-11 17:08:26,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 1138 transitions, 12533 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-11 17:08:26,802 INFO L231 Difference]: Finished difference. Result has 407 places, 993 transitions, 10789 flow [2024-10-11 17:08:26,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=7581, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=844, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10789, PETRI_PLACES=407, PETRI_TRANSITIONS=993} [2024-10-11 17:08:26,803 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 135 predicate places. [2024-10-11 17:08:26,803 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 993 transitions, 10789 flow [2024-10-11 17:08:26,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:26,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:26,804 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:26,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 17:08:26,804 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:26,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:26,805 INFO L85 PathProgramCache]: Analyzing trace with hash 164644886, now seen corresponding path program 4 times [2024-10-11 17:08:26,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:26,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951616554] [2024-10-11 17:08:26,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:26,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:27,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:27,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951616554] [2024-10-11 17:08:27,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951616554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:27,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:27,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 17:08:27,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672760144] [2024-10-11 17:08:27,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:27,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 17:08:27,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:27,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 17:08:27,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-11 17:08:28,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 273 [2024-10-11 17:08:28,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 993 transitions, 10789 flow. Second operand has 15 states, 15 states have (on average 192.13333333333333) internal successors, (2882), 15 states have internal predecessors, (2882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:28,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:28,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 273 [2024-10-11 17:08:28,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:31,047 INFO L124 PetriNetUnfolderBase]: 3051/11570 cut-off events. [2024-10-11 17:08:31,047 INFO L125 PetriNetUnfolderBase]: For 47845/48511 co-relation queries the response was YES. [2024-10-11 17:08:31,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40082 conditions, 11570 events. 3051/11570 cut-off events. For 47845/48511 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 117387 event pairs, 184 based on Foata normal form. 167/11312 useless extension candidates. Maximal degree in co-relation 39839. Up to 2574 conditions per place. [2024-10-11 17:08:31,150 INFO L140 encePairwiseOnDemand]: 238/273 looper letters, 570 selfloop transitions, 420 changer transitions 1/1247 dead transitions. [2024-10-11 17:08:31,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 1247 transitions, 16325 flow [2024-10-11 17:08:31,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 17:08:31,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 17:08:31,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2587 transitions. [2024-10-11 17:08:31,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7289377289377289 [2024-10-11 17:08:31,154 INFO L175 Difference]: Start difference. First operand has 407 places, 993 transitions, 10789 flow. Second operand 13 states and 2587 transitions. [2024-10-11 17:08:31,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 1247 transitions, 16325 flow [2024-10-11 17:08:31,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 1247 transitions, 16154 flow, removed 82 selfloop flow, removed 3 redundant places. [2024-10-11 17:08:31,304 INFO L231 Difference]: Finished difference. Result has 424 places, 1153 transitions, 15301 flow [2024-10-11 17:08:31,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=10626, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15301, PETRI_PLACES=424, PETRI_TRANSITIONS=1153} [2024-10-11 17:08:31,306 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 152 predicate places. [2024-10-11 17:08:31,306 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 1153 transitions, 15301 flow [2024-10-11 17:08:31,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 192.13333333333333) internal successors, (2882), 15 states have internal predecessors, (2882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:31,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:31,307 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:31,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 17:08:31,307 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:31,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:31,307 INFO L85 PathProgramCache]: Analyzing trace with hash 787107828, now seen corresponding path program 5 times [2024-10-11 17:08:31,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:31,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974006070] [2024-10-11 17:08:31,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:31,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:32,266 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:32,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:32,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974006070] [2024-10-11 17:08:32,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974006070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:32,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:32,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:32,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468237015] [2024-10-11 17:08:32,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:32,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:32,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:32,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:32,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:33,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:08:33,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 1153 transitions, 15301 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:33,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:33,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:08:33,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:36,674 INFO L124 PetriNetUnfolderBase]: 3907/14562 cut-off events. [2024-10-11 17:08:36,675 INFO L125 PetriNetUnfolderBase]: For 81892/83152 co-relation queries the response was YES. [2024-10-11 17:08:36,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52573 conditions, 14562 events. 3907/14562 cut-off events. For 81892/83152 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 155196 event pairs, 247 based on Foata normal form. 804/14827 useless extension candidates. Maximal degree in co-relation 52321. Up to 3188 conditions per place. [2024-10-11 17:08:36,809 INFO L140 encePairwiseOnDemand]: 235/273 looper letters, 615 selfloop transitions, 531 changer transitions 4/1408 dead transitions. [2024-10-11 17:08:36,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 1408 transitions, 21287 flow [2024-10-11 17:08:36,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:08:36,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:08:36,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3063 transitions. [2024-10-11 17:08:36,811 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.747985347985348 [2024-10-11 17:08:36,812 INFO L175 Difference]: Start difference. First operand has 424 places, 1153 transitions, 15301 flow. Second operand 15 states and 3063 transitions. [2024-10-11 17:08:36,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 1408 transitions, 21287 flow [2024-10-11 17:08:36,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1408 transitions, 21226 flow, removed 27 selfloop flow, removed 3 redundant places. [2024-10-11 17:08:37,005 INFO L231 Difference]: Finished difference. Result has 444 places, 1294 transitions, 20298 flow [2024-10-11 17:08:37,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=15246, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=393, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=20298, PETRI_PLACES=444, PETRI_TRANSITIONS=1294} [2024-10-11 17:08:37,007 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 172 predicate places. [2024-10-11 17:08:37,007 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 1294 transitions, 20298 flow [2024-10-11 17:08:37,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:37,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:37,008 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:37,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 17:08:37,008 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:37,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:37,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1626531754, now seen corresponding path program 6 times [2024-10-11 17:08:37,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:37,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595350567] [2024-10-11 17:08:37,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:37,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:38,041 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:38,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:38,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595350567] [2024-10-11 17:08:38,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595350567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:38,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:38,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:38,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635383164] [2024-10-11 17:08:38,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:38,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:38,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:38,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:38,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:39,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:08:39,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 1294 transitions, 20298 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:39,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:39,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:08:39,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:43,224 INFO L124 PetriNetUnfolderBase]: 4361/16505 cut-off events. [2024-10-11 17:08:43,224 INFO L125 PetriNetUnfolderBase]: For 119798/120846 co-relation queries the response was YES. [2024-10-11 17:08:43,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62565 conditions, 16505 events. 4361/16505 cut-off events. For 119798/120846 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 182193 event pairs, 262 based on Foata normal form. 433/16320 useless extension candidates. Maximal degree in co-relation 62303. Up to 3607 conditions per place. [2024-10-11 17:08:43,442 INFO L140 encePairwiseOnDemand]: 237/273 looper letters, 600 selfloop transitions, 694 changer transitions 2/1554 dead transitions. [2024-10-11 17:08:43,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 1554 transitions, 27018 flow [2024-10-11 17:08:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 17:08:43,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-11 17:08:43,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3235 transitions. [2024-10-11 17:08:43,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7406135531135531 [2024-10-11 17:08:43,446 INFO L175 Difference]: Start difference. First operand has 444 places, 1294 transitions, 20298 flow. Second operand 16 states and 3235 transitions. [2024-10-11 17:08:43,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 1554 transitions, 27018 flow [2024-10-11 17:08:43,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 1554 transitions, 26877 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:43,762 INFO L231 Difference]: Finished difference. Result has 463 places, 1424 transitions, 25355 flow [2024-10-11 17:08:43,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=20164, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=570, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25355, PETRI_PLACES=463, PETRI_TRANSITIONS=1424} [2024-10-11 17:08:43,763 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 191 predicate places. [2024-10-11 17:08:43,764 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 1424 transitions, 25355 flow [2024-10-11 17:08:43,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:43,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:43,764 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:43,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 17:08:43,765 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:43,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:43,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1419745818, now seen corresponding path program 7 times [2024-10-11 17:08:43,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:43,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563796921] [2024-10-11 17:08:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:43,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:44,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:44,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563796921] [2024-10-11 17:08:44,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563796921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:44,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:44,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:44,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725330149] [2024-10-11 17:08:44,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:44,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:44,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:44,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:44,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:46,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:08:46,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1424 transitions, 25355 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:46,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:46,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:08:46,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:50,319 INFO L124 PetriNetUnfolderBase]: 5132/19376 cut-off events. [2024-10-11 17:08:50,320 INFO L125 PetriNetUnfolderBase]: For 165734/167235 co-relation queries the response was YES. [2024-10-11 17:08:50,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76595 conditions, 19376 events. 5132/19376 cut-off events. For 165734/167235 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 221090 event pairs, 312 based on Foata normal form. 857/19510 useless extension candidates. Maximal degree in co-relation 76323. Up to 4238 conditions per place. [2024-10-11 17:08:50,502 INFO L140 encePairwiseOnDemand]: 236/273 looper letters, 770 selfloop transitions, 677 changer transitions 3/1708 dead transitions. [2024-10-11 17:08:50,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 1708 transitions, 33365 flow [2024-10-11 17:08:50,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 17:08:50,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-11 17:08:50,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3250 transitions. [2024-10-11 17:08:50,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7440476190476191 [2024-10-11 17:08:50,504 INFO L175 Difference]: Start difference. First operand has 463 places, 1424 transitions, 25355 flow. Second operand 16 states and 3250 transitions. [2024-10-11 17:08:50,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 1708 transitions, 33365 flow [2024-10-11 17:08:50,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 1708 transitions, 33226 flow, removed 66 selfloop flow, removed 3 redundant places. [2024-10-11 17:08:50,879 INFO L231 Difference]: Finished difference. Result has 485 places, 1577 transitions, 31408 flow [2024-10-11 17:08:50,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=25224, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=529, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=761, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=31408, PETRI_PLACES=485, PETRI_TRANSITIONS=1577} [2024-10-11 17:08:50,880 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 213 predicate places. [2024-10-11 17:08:50,880 INFO L471 AbstractCegarLoop]: Abstraction has has 485 places, 1577 transitions, 31408 flow [2024-10-11 17:08:50,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:50,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:50,881 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:50,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 17:08:50,881 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:50,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:50,881 INFO L85 PathProgramCache]: Analyzing trace with hash 967687616, now seen corresponding path program 8 times [2024-10-11 17:08:50,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:50,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014698149] [2024-10-11 17:08:50,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:50,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:51,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:51,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014698149] [2024-10-11 17:08:51,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014698149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:51,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:51,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:51,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162542478] [2024-10-11 17:08:51,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:51,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:51,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:51,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:51,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:52,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:08:52,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 1577 transitions, 31408 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:52,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:52,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:08:52,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:58,027 INFO L124 PetriNetUnfolderBase]: 5592/21063 cut-off events. [2024-10-11 17:08:58,028 INFO L125 PetriNetUnfolderBase]: For 209254/211300 co-relation queries the response was YES. [2024-10-11 17:08:58,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86673 conditions, 21063 events. 5592/21063 cut-off events. For 209254/211300 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 244330 event pairs, 319 based on Foata normal form. 1359/21643 useless extension candidates. Maximal degree in co-relation 86390. Up to 4716 conditions per place. [2024-10-11 17:08:58,295 INFO L140 encePairwiseOnDemand]: 236/273 looper letters, 658 selfloop transitions, 868 changer transitions 3/1787 dead transitions. [2024-10-11 17:08:58,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 1787 transitions, 38460 flow [2024-10-11 17:08:58,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 17:08:58,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 17:08:58,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2656 transitions. [2024-10-11 17:08:58,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7483798253029023 [2024-10-11 17:08:58,298 INFO L175 Difference]: Start difference. First operand has 485 places, 1577 transitions, 31408 flow. Second operand 13 states and 2656 transitions. [2024-10-11 17:08:58,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 1787 transitions, 38460 flow [2024-10-11 17:08:58,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 1787 transitions, 38270 flow, removed 74 selfloop flow, removed 4 redundant places. [2024-10-11 17:08:58,911 INFO L231 Difference]: Finished difference. Result has 500 places, 1685 transitions, 37924 flow [2024-10-11 17:08:58,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=31222, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=761, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=716, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=37924, PETRI_PLACES=500, PETRI_TRANSITIONS=1685} [2024-10-11 17:08:58,912 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 228 predicate places. [2024-10-11 17:08:58,913 INFO L471 AbstractCegarLoop]: Abstraction has has 500 places, 1685 transitions, 37924 flow [2024-10-11 17:08:58,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:58,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:58,914 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:58,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 17:08:58,914 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:58,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:58,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1034859882, now seen corresponding path program 9 times [2024-10-11 17:08:58,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:58,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625078140] [2024-10-11 17:08:58,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:58,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:59,697 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:08:59,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:59,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625078140] [2024-10-11 17:08:59,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625078140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:59,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:59,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:59,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179863856] [2024-10-11 17:08:59,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:59,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:59,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:59,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:59,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:09:01,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:09:01,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 1685 transitions, 37924 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:01,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:01,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:09:01,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:07,514 INFO L124 PetriNetUnfolderBase]: 5994/22620 cut-off events. [2024-10-11 17:09:07,514 INFO L125 PetriNetUnfolderBase]: For 273687/275545 co-relation queries the response was YES. [2024-10-11 17:09:07,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96710 conditions, 22620 events. 5994/22620 cut-off events. For 273687/275545 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 266667 event pairs, 340 based on Foata normal form. 1132/22914 useless extension candidates. Maximal degree in co-relation 96419. Up to 4950 conditions per place. [2024-10-11 17:09:07,748 INFO L140 encePairwiseOnDemand]: 236/273 looper letters, 745 selfloop transitions, 897 changer transitions 3/1903 dead transitions. [2024-10-11 17:09:07,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 1903 transitions, 45650 flow [2024-10-11 17:09:07,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:09:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:09:07,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3049 transitions. [2024-10-11 17:09:07,750 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7445665445665446 [2024-10-11 17:09:07,750 INFO L175 Difference]: Start difference. First operand has 500 places, 1685 transitions, 37924 flow. Second operand 15 states and 3049 transitions. [2024-10-11 17:09:07,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 1903 transitions, 45650 flow [2024-10-11 17:09:08,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 1903 transitions, 45502 flow, removed 53 selfloop flow, removed 4 redundant places. [2024-10-11 17:09:08,389 INFO L231 Difference]: Finished difference. Result has 515 places, 1795 transitions, 44126 flow [2024-10-11 17:09:08,390 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=37798, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=790, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=795, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=44126, PETRI_PLACES=515, PETRI_TRANSITIONS=1795} [2024-10-11 17:09:08,390 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 243 predicate places. [2024-10-11 17:09:08,390 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 1795 transitions, 44126 flow [2024-10-11 17:09:08,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:08,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:08,391 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:08,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 17:09:08,391 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:09:08,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:08,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2131137002, now seen corresponding path program 10 times [2024-10-11 17:09:08,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:08,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873227443] [2024-10-11 17:09:08,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:08,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:09:09,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:09,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873227443] [2024-10-11 17:09:09,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873227443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:09,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:09,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 17:09:09,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265213818] [2024-10-11 17:09:09,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:09,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 17:09:09,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:09,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 17:09:09,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-11 17:09:10,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:09:10,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 1795 transitions, 44126 flow. Second operand has 12 states, 12 states have (on average 195.08333333333334) internal successors, (2341), 12 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:10,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:10,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:09:10,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:16,999 INFO L124 PetriNetUnfolderBase]: 6408/24196 cut-off events. [2024-10-11 17:09:16,999 INFO L125 PetriNetUnfolderBase]: For 333033/335172 co-relation queries the response was YES. [2024-10-11 17:09:17,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107189 conditions, 24196 events. 6408/24196 cut-off events. For 333033/335172 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 289700 event pairs, 350 based on Foata normal form. 1268/24570 useless extension candidates. Maximal degree in co-relation 106892. Up to 5313 conditions per place. [2024-10-11 17:09:17,290 INFO L140 encePairwiseOnDemand]: 237/273 looper letters, 692 selfloop transitions, 1051 changer transitions 2/2003 dead transitions. [2024-10-11 17:09:17,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 2003 transitions, 52192 flow [2024-10-11 17:09:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 17:09:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 17:09:17,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2637 transitions. [2024-10-11 17:09:17,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7430262045646661 [2024-10-11 17:09:17,292 INFO L175 Difference]: Start difference. First operand has 515 places, 1795 transitions, 44126 flow. Second operand 13 states and 2637 transitions. [2024-10-11 17:09:17,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 2003 transitions, 52192 flow [2024-10-11 17:09:18,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 2003 transitions, 52050 flow, removed 41 selfloop flow, removed 6 redundant places. [2024-10-11 17:09:18,264 INFO L231 Difference]: Finished difference. Result has 528 places, 1903 transitions, 51958 flow [2024-10-11 17:09:18,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=43984, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1795, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=944, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=752, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=51958, PETRI_PLACES=528, PETRI_TRANSITIONS=1903} [2024-10-11 17:09:18,265 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 256 predicate places. [2024-10-11 17:09:18,265 INFO L471 AbstractCegarLoop]: Abstraction has has 528 places, 1903 transitions, 51958 flow [2024-10-11 17:09:18,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 195.08333333333334) internal successors, (2341), 12 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:18,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:18,266 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:18,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 17:09:18,266 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:09:18,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:18,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1342954286, now seen corresponding path program 11 times [2024-10-11 17:09:18,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:18,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771609952] [2024-10-11 17:09:18,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:18,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:09:19,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:19,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771609952] [2024-10-11 17:09:19,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771609952] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:19,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:19,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 17:09:19,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486835795] [2024-10-11 17:09:19,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:19,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 17:09:19,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:19,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 17:09:19,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-10-11 17:09:20,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-11 17:09:20,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 1903 transitions, 51958 flow. Second operand has 12 states, 12 states have (on average 195.08333333333334) internal successors, (2341), 12 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:20,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:20,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-11 17:09:20,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand