./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:56:29,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:56:29,048 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:56:29,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:56:29,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:56:29,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:56:29,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:56:29,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:56:29,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:56:29,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:56:29,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:56:29,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:56:29,067 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:56:29,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:56:29,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:56:29,068 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:56:29,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:56:29,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:56:29,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:56:29,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:56:29,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:56:29,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:56:29,073 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:56:29,073 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:56:29,073 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:56:29,074 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:56:29,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:56:29,074 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:56:29,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:56:29,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:56:29,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:56:29,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:56:29,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:56:29,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:56:29,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:56:29,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:56:29,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:56:29,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:56:29,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:56:29,077 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:56:29,077 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:56:29,077 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba [2024-11-09 06:56:29,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:56:29,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:56:29,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:56:29,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:56:29,271 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:56:29,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-11-09 06:56:30,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:56:30,969 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:56:30,969 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-11-09 06:56:30,987 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ea71b765/25e19561c58e418ea0e30e0d2e70a126/FLAG2e17fb216 [2024-11-09 06:56:31,000 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ea71b765/25e19561c58e418ea0e30e0d2e70a126 [2024-11-09 06:56:31,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:56:31,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:56:31,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:31,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:56:31,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:56:31,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7440cf1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31, skipping insertion in model container [2024-11-09 06:56:31,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:56:31,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:31,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:56:31,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:31,618 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:56:31,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31 WrapperNode [2024-11-09 06:56:31,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:31,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:31,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:56:31,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:56:31,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,686 INFO L138 Inliner]: procedures = 272, calls = 96, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 350 [2024-11-09 06:56:31,690 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:31,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:56:31,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:56:31,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:56:31,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,735 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:56:31,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:56:31,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:56:31,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:56:31,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (1/1) ... [2024-11-09 06:56:31,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:56:31,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:31,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:56:31,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:56:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:56:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:56:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:56:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:56:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:56:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:56:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:56:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:56:31,827 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:56:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:56:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:56:31,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:56:31,828 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:56:31,967 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:56:31,969 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:56:32,436 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:56:32,439 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:56:32,498 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:56:32,498 INFO L316 CfgBuilder]: Removed 25 assume(true) statements. [2024-11-09 06:56:32,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:32 BoogieIcfgContainer [2024-11-09 06:56:32,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:56:32,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:56:32,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:56:32,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:56:32,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:56:31" (1/3) ... [2024-11-09 06:56:32,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1c955f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:32, skipping insertion in model container [2024-11-09 06:56:32,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:31" (2/3) ... [2024-11-09 06:56:32,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1c955f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:32, skipping insertion in model container [2024-11-09 06:56:32,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:32" (3/3) ... [2024-11-09 06:56:32,508 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i [2024-11-09 06:56:32,522 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:56:32,522 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 06:56:32,522 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:56:32,597 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:56:32,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 320 places, 352 transitions, 711 flow [2024-11-09 06:56:32,893 INFO L124 PetriNetUnfolderBase]: 52/493 cut-off events. [2024-11-09 06:56:32,894 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:56:32,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 493 events. 52/493 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1869 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 257. Up to 8 conditions per place. [2024-11-09 06:56:32,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 320 places, 352 transitions, 711 flow [2024-11-09 06:56:32,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 320 places, 352 transitions, 711 flow [2024-11-09 06:56:32,932 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:32,938 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;@20007aae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:32,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-09 06:56:32,958 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:56:32,958 INFO L124 PetriNetUnfolderBase]: 5/120 cut-off events. [2024-11-09 06:56:32,958 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:56:32,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:32,959 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:32,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:56:32,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:32,966 INFO L85 PathProgramCache]: Analyzing trace with hash 80814904, now seen corresponding path program 1 times [2024-11-09 06:56:32,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:32,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857575253] [2024-11-09 06:56:32,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:32,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:33,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:33,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857575253] [2024-11-09 06:56:33,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857575253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:33,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:33,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:33,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5035945] [2024-11-09 06:56:33,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:33,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:33,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:33,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:33,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:33,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 352 [2024-11-09 06:56:33,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 352 transitions, 711 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:33,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:33,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 352 [2024-11-09 06:56:33,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:33,634 INFO L124 PetriNetUnfolderBase]: 98/1383 cut-off events. [2024-11-09 06:56:33,635 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-09 06:56:33,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 1383 events. 98/1383 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9002 event pairs, 72 based on Foata normal form. 228/1497 useless extension candidates. Maximal degree in co-relation 1331. Up to 187 conditions per place. [2024-11-09 06:56:33,645 INFO L140 encePairwiseOnDemand]: 320/352 looper letters, 23 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2024-11-09 06:56:33,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 320 transitions, 697 flow [2024-11-09 06:56:33,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:33,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:33,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2024-11-09 06:56:33,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.896780303030303 [2024-11-09 06:56:33,664 INFO L175 Difference]: Start difference. First operand has 320 places, 352 transitions, 711 flow. Second operand 3 states and 947 transitions. [2024-11-09 06:56:33,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 320 transitions, 697 flow [2024-11-09 06:56:33,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 320 transitions, 697 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:33,674 INFO L231 Difference]: Finished difference. Result has 319 places, 320 transitions, 657 flow [2024-11-09 06:56:33,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=657, PETRI_PLACES=319, PETRI_TRANSITIONS=320} [2024-11-09 06:56:33,680 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, -1 predicate places. [2024-11-09 06:56:33,681 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 320 transitions, 657 flow [2024-11-09 06:56:33,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:33,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:33,682 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:33,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:56:33,683 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:56:33,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:33,684 INFO L85 PathProgramCache]: Analyzing trace with hash 424190574, now seen corresponding path program 1 times [2024-11-09 06:56:33,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:33,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278484113] [2024-11-09 06:56:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:33,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:33,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:33,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278484113] [2024-11-09 06:56:33,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278484113] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:33,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079307333] [2024-11-09 06:56:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:33,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:33,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:33,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:33,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:56:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:34,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:56:34,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:34,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:34,089 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:34,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:34,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079307333] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:34,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:56:34,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:56:34,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897201589] [2024-11-09 06:56:34,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:34,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:56:34,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:34,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:56:34,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:56:34,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-09 06:56:34,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 320 transitions, 657 flow. Second operand has 10 states, 10 states have (on average 295.8) internal successors, (2958), 10 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:34,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:34,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-09 06:56:34,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:34,461 INFO L124 PetriNetUnfolderBase]: 98/1390 cut-off events. [2024-11-09 06:56:34,462 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2024-11-09 06:56:34,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 1390 events. 98/1390 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8954 event pairs, 72 based on Foata normal form. 2/1278 useless extension candidates. Maximal degree in co-relation 1507. Up to 187 conditions per place. [2024-11-09 06:56:34,471 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 27 selfloop transitions, 9 changer transitions 0/328 dead transitions. [2024-11-09 06:56:34,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 328 transitions, 747 flow [2024-11-09 06:56:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:56:34,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:56:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2684 transitions. [2024-11-09 06:56:34,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8472222222222222 [2024-11-09 06:56:34,476 INFO L175 Difference]: Start difference. First operand has 319 places, 320 transitions, 657 flow. Second operand 9 states and 2684 transitions. [2024-11-09 06:56:34,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 328 transitions, 747 flow [2024-11-09 06:56:34,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 328 transitions, 745 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:56:34,485 INFO L231 Difference]: Finished difference. Result has 329 places, 326 transitions, 705 flow [2024-11-09 06:56:34,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=705, PETRI_PLACES=329, PETRI_TRANSITIONS=326} [2024-11-09 06:56:34,487 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, 9 predicate places. [2024-11-09 06:56:34,487 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 326 transitions, 705 flow [2024-11-09 06:56:34,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 295.8) internal successors, (2958), 10 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:34,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:34,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:34,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:56:34,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:34,692 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:56:34,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:34,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1399892142, now seen corresponding path program 2 times [2024-11-09 06:56:34,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:34,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593104010] [2024-11-09 06:56:34,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:34,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:34,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:34,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593104010] [2024-11-09 06:56:34,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593104010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:34,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112916484] [2024-11-09 06:56:34,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:56:34,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:34,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:34,900 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:34,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:56:34,982 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:56:34,983 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:56:34,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:56:34,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:35,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:56:35,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-09 06:56:35,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:35,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-09 06:56:35,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:35,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-09 06:56:35,237 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:56:35,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:35,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112916484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:35,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:56:35,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-09 06:56:35,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307824097] [2024-11-09 06:56:35,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:35,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:56:35,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:35,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:56:35,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:56:35,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 352 [2024-11-09 06:56:35,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 326 transitions, 705 flow. Second operand has 8 states, 8 states have (on average 245.125) internal successors, (1961), 8 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:35,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:35,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 352 [2024-11-09 06:56:35,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:36,444 INFO L124 PetriNetUnfolderBase]: 1430/5664 cut-off events. [2024-11-09 06:56:36,445 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-09 06:56:36,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8411 conditions, 5664 events. 1430/5664 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 50841 event pairs, 1148 based on Foata normal form. 1/5155 useless extension candidates. Maximal degree in co-relation 8287. Up to 2528 conditions per place. [2024-11-09 06:56:36,475 INFO L140 encePairwiseOnDemand]: 340/352 looper letters, 134 selfloop transitions, 11 changer transitions 0/394 dead transitions. [2024-11-09 06:56:36,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 394 transitions, 1131 flow [2024-11-09 06:56:36,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:56:36,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 06:56:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2099 transitions. [2024-11-09 06:56:36,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7453835227272727 [2024-11-09 06:56:36,481 INFO L175 Difference]: Start difference. First operand has 329 places, 326 transitions, 705 flow. Second operand 8 states and 2099 transitions. [2024-11-09 06:56:36,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 394 transitions, 1131 flow [2024-11-09 06:56:36,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 394 transitions, 1125 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 06:56:36,488 INFO L231 Difference]: Finished difference. Result has 340 places, 333 transitions, 766 flow [2024-11-09 06:56:36,489 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=766, PETRI_PLACES=340, PETRI_TRANSITIONS=333} [2024-11-09 06:56:36,490 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, 20 predicate places. [2024-11-09 06:56:36,492 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 333 transitions, 766 flow [2024-11-09 06:56:36,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 245.125) internal successors, (1961), 8 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:36,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:36,494 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:36,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:56:36,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 06:56:36,698 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:56:36,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:36,699 INFO L85 PathProgramCache]: Analyzing trace with hash 300737964, now seen corresponding path program 1 times [2024-11-09 06:56:36,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:36,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946715509] [2024-11-09 06:56:36,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:36,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:56:36,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:36,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946715509] [2024-11-09 06:56:36,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946715509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:36,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951922639] [2024-11-09 06:56:36,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:36,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:36,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:36,935 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:36,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:56:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:37,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:56:37,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:37,075 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:56:37,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:37,161 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:56:37,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951922639] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:37,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:56:37,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-09 06:56:37,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211798600] [2024-11-09 06:56:37,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:37,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:56:37,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:37,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:56:37,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:56:37,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-09 06:56:37,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 333 transitions, 766 flow. Second operand has 18 states, 18 states have (on average 295.94444444444446) internal successors, (5327), 18 states have internal predecessors, (5327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:37,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:37,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-09 06:56:37,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:37,565 INFO L124 PetriNetUnfolderBase]: 112/1448 cut-off events. [2024-11-09 06:56:37,566 INFO L125 PetriNetUnfolderBase]: For 36/43 co-relation queries the response was YES. [2024-11-09 06:56:37,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 1448 events. 112/1448 cut-off events. For 36/43 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9635 event pairs, 74 based on Foata normal form. 4/1335 useless extension candidates. Maximal degree in co-relation 1592. Up to 197 conditions per place. [2024-11-09 06:56:37,576 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 31 selfloop transitions, 21 changer transitions 0/351 dead transitions. [2024-11-09 06:56:37,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 351 transitions, 958 flow [2024-11-09 06:56:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:56:37,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 06:56:37,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6230 transitions. [2024-11-09 06:56:37,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8428030303030303 [2024-11-09 06:56:37,585 INFO L175 Difference]: Start difference. First operand has 340 places, 333 transitions, 766 flow. Second operand 21 states and 6230 transitions. [2024-11-09 06:56:37,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 351 transitions, 958 flow [2024-11-09 06:56:37,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 351 transitions, 951 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:37,591 INFO L231 Difference]: Finished difference. Result has 363 places, 346 transitions, 889 flow [2024-11-09 06:56:37,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=759, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=889, PETRI_PLACES=363, PETRI_TRANSITIONS=346} [2024-11-09 06:56:37,593 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, 43 predicate places. [2024-11-09 06:56:37,593 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 346 transitions, 889 flow [2024-11-09 06:56:37,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 295.94444444444446) internal successors, (5327), 18 states have internal predecessors, (5327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:37,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:37,597 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:37,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:56:37,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:37,798 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:56:37,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:37,798 INFO L85 PathProgramCache]: Analyzing trace with hash -53698004, now seen corresponding path program 2 times [2024-11-09 06:56:37,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:37,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303037296] [2024-11-09 06:56:37,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:37,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:56:38,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:38,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303037296] [2024-11-09 06:56:38,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303037296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:38,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135058599] [2024-11-09 06:56:38,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:56:38,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:38,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:38,157 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:38,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:56:38,235 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:56:38,235 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:56:38,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:56:38,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:38,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 06:56:38,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 06:56:38,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:38,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 06:56:38,311 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:38,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 06:56:38,337 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-09 06:56:38,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:38,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135058599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:38,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:56:38,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-09 06:56:38,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299449362] [2024-11-09 06:56:38,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:38,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:56:38,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:38,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:56:38,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:56:38,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 352 [2024-11-09 06:56:38,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 346 transitions, 889 flow. Second operand has 6 states, 6 states have (on average 247.66666666666666) internal successors, (1486), 6 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:38,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:38,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 352 [2024-11-09 06:56:38,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:39,734 INFO L124 PetriNetUnfolderBase]: 1516/5816 cut-off events. [2024-11-09 06:56:39,734 INFO L125 PetriNetUnfolderBase]: For 313/321 co-relation queries the response was YES. [2024-11-09 06:56:39,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9205 conditions, 5816 events. 1516/5816 cut-off events. For 313/321 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 52261 event pairs, 914 based on Foata normal form. 33/5377 useless extension candidates. Maximal degree in co-relation 8997. Up to 2684 conditions per place. [2024-11-09 06:56:39,762 INFO L140 encePairwiseOnDemand]: 325/352 looper letters, 107 selfloop transitions, 92 changer transitions 0/462 dead transitions. [2024-11-09 06:56:39,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 462 transitions, 1541 flow [2024-11-09 06:56:39,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:56:39,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1664 transitions. [2024-11-09 06:56:39,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7878787878787878 [2024-11-09 06:56:39,767 INFO L175 Difference]: Start difference. First operand has 363 places, 346 transitions, 889 flow. Second operand 6 states and 1664 transitions. [2024-11-09 06:56:39,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 462 transitions, 1541 flow [2024-11-09 06:56:39,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 462 transitions, 1517 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-09 06:56:39,779 INFO L231 Difference]: Finished difference. Result has 367 places, 430 transitions, 1473 flow [2024-11-09 06:56:39,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1473, PETRI_PLACES=367, PETRI_TRANSITIONS=430} [2024-11-09 06:56:39,780 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, 47 predicate places. [2024-11-09 06:56:39,780 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 430 transitions, 1473 flow [2024-11-09 06:56:39,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 247.66666666666666) internal successors, (1486), 6 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:39,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:39,782 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:39,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:39,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:39,986 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:56:39,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:39,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1664637069, now seen corresponding path program 1 times [2024-11-09 06:56:39,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:39,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401975196] [2024-11-09 06:56:39,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:39,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:56:40,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:40,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401975196] [2024-11-09 06:56:40,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401975196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:40,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21311269] [2024-11-09 06:56:40,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:40,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:40,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:40,354 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:40,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:56:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:40,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:56:40,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:40,506 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:56:40,507 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:40,664 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:56:40,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21311269] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:40,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:56:40,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-09 06:56:40,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935384666] [2024-11-09 06:56:40,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:40,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:56:40,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:40,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:56:40,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:56:40,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-09 06:56:40,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 430 transitions, 1473 flow. Second operand has 23 states, 23 states have (on average 296.04347826086956) internal successors, (6809), 23 states have internal predecessors, (6809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:40,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:40,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-09 06:56:40,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:41,227 INFO L124 PetriNetUnfolderBase]: 296/2251 cut-off events. [2024-11-09 06:56:41,227 INFO L125 PetriNetUnfolderBase]: For 560/621 co-relation queries the response was YES. [2024-11-09 06:56:41,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3738 conditions, 2251 events. 296/2251 cut-off events. For 560/621 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 17294 event pairs, 72 based on Foata normal form. 3/2095 useless extension candidates. Maximal degree in co-relation 3450. Up to 438 conditions per place. [2024-11-09 06:56:41,239 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 34 selfloop transitions, 30 changer transitions 0/447 dead transitions. [2024-11-09 06:56:41,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 447 transitions, 1723 flow [2024-11-09 06:56:41,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:56:41,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-09 06:56:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8887 transitions. [2024-11-09 06:56:41,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8415719696969697 [2024-11-09 06:56:41,251 INFO L175 Difference]: Start difference. First operand has 367 places, 430 transitions, 1473 flow. Second operand 30 states and 8887 transitions. [2024-11-09 06:56:41,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 447 transitions, 1723 flow [2024-11-09 06:56:41,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 447 transitions, 1705 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:41,262 INFO L231 Difference]: Finished difference. Result has 400 places, 440 transitions, 1607 flow [2024-11-09 06:56:41,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=1455, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1607, PETRI_PLACES=400, PETRI_TRANSITIONS=440} [2024-11-09 06:56:41,263 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, 80 predicate places. [2024-11-09 06:56:41,263 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 440 transitions, 1607 flow [2024-11-09 06:56:41,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 296.04347826086956) internal successors, (6809), 23 states have internal predecessors, (6809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:41,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:41,266 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:41,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:56:41,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:41,471 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:56:41,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:41,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1312531305, now seen corresponding path program 2 times [2024-11-09 06:56:41,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:41,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229805513] [2024-11-09 06:56:41,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:41,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:41,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:56:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:41,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:56:41,550 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:56:41,552 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-09 06:56:41,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-09 06:56:41,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-09 06:56:41,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-09 06:56:41,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-09 06:56:41,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-09 06:56:41,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-09 06:56:41,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-09 06:56:41,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-09 06:56:41,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-09 06:56:41,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-09 06:56:41,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-09 06:56:41,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-09 06:56:41,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-09 06:56:41,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-09 06:56:41,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-09 06:56:41,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-09 06:56:41,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-09 06:56:41,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:56:41,560 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-11-09 06:56:41,563 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:56:41,563 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 06:56:41,607 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:56:41,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 421 places, 467 transitions, 950 flow [2024-11-09 06:56:41,707 INFO L124 PetriNetUnfolderBase]: 87/777 cut-off events. [2024-11-09 06:56:41,707 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 06:56:41,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 777 events. 87/777 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3731 event pairs, 0 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 495. Up to 12 conditions per place. [2024-11-09 06:56:41,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 421 places, 467 transitions, 950 flow [2024-11-09 06:56:41,738 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 467 transitions, 950 flow [2024-11-09 06:56:41,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:41,741 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;@20007aae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:41,742 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-09 06:56:41,748 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:56:41,749 INFO L124 PetriNetUnfolderBase]: 5/120 cut-off events. [2024-11-09 06:56:41,749 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:56:41,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:41,749 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:41,749 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 06:56:41,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:41,750 INFO L85 PathProgramCache]: Analyzing trace with hash 507860939, now seen corresponding path program 1 times [2024-11-09 06:56:41,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:41,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449725259] [2024-11-09 06:56:41,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:41,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:41,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:41,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449725259] [2024-11-09 06:56:41,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449725259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:41,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:41,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:41,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944628128] [2024-11-09 06:56:41,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:41,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:41,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:41,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:41,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:41,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 467 [2024-11-09 06:56:41,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 467 transitions, 950 flow. Second operand has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:41,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:41,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 467 [2024-11-09 06:56:41,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:43,857 INFO L124 PetriNetUnfolderBase]: 1782/12900 cut-off events. [2024-11-09 06:56:43,858 INFO L125 PetriNetUnfolderBase]: For 122/129 co-relation queries the response was YES. [2024-11-09 06:56:43,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15564 conditions, 12900 events. 1782/12900 cut-off events. For 122/129 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 156769 event pairs, 1464 based on Foata normal form. 3189/15021 useless extension candidates. Maximal degree in co-relation 13811. Up to 2601 conditions per place. [2024-11-09 06:56:43,935 INFO L140 encePairwiseOnDemand]: 422/467 looper letters, 33 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2024-11-09 06:56:43,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 926 flow [2024-11-09 06:56:43,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:43,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:43,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1243 transitions. [2024-11-09 06:56:43,938 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8872234118486795 [2024-11-09 06:56:43,938 INFO L175 Difference]: Start difference. First operand has 421 places, 467 transitions, 950 flow. Second operand 3 states and 1243 transitions. [2024-11-09 06:56:43,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 926 flow [2024-11-09 06:56:43,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 420 transitions, 926 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:43,943 INFO L231 Difference]: Finished difference. Result has 418 places, 420 transitions, 866 flow [2024-11-09 06:56:43,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=866, PETRI_PLACES=418, PETRI_TRANSITIONS=420} [2024-11-09 06:56:43,944 INFO L277 CegarLoopForPetriNet]: 421 programPoint places, -3 predicate places. [2024-11-09 06:56:43,944 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 420 transitions, 866 flow [2024-11-09 06:56:43,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:43,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:43,945 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:43,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:56:43,945 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 06:56:43,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:43,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1715630386, now seen corresponding path program 1 times [2024-11-09 06:56:43,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:43,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909491127] [2024-11-09 06:56:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:43,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:43,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:43,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:43,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909491127] [2024-11-09 06:56:43,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909491127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:43,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323765550] [2024-11-09 06:56:43,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:43,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:43,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:44,000 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:44,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:56:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:44,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:56:44,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:44,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:44,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323765550] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:44,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:56:44,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:56:44,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138275419] [2024-11-09 06:56:44,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:44,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:56:44,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:44,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:56:44,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:56:44,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 467 [2024-11-09 06:56:44,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 420 transitions, 866 flow. Second operand has 10 states, 10 states have (on average 386.8) internal successors, (3868), 10 states have internal predecessors, (3868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:44,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:44,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 467 [2024-11-09 06:56:44,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:45,944 INFO L124 PetriNetUnfolderBase]: 1782/12907 cut-off events. [2024-11-09 06:56:45,945 INFO L125 PetriNetUnfolderBase]: For 127/134 co-relation queries the response was YES. [2024-11-09 06:56:45,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15590 conditions, 12907 events. 1782/12907 cut-off events. For 127/134 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 157053 event pairs, 1464 based on Foata normal form. 2/11841 useless extension candidates. Maximal degree in co-relation 15494. Up to 2601 conditions per place. [2024-11-09 06:56:46,027 INFO L140 encePairwiseOnDemand]: 461/467 looper letters, 37 selfloop transitions, 9 changer transitions 0/428 dead transitions. [2024-11-09 06:56:46,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 428 transitions, 976 flow [2024-11-09 06:56:46,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:56:46,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:56:46,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3513 transitions. [2024-11-09 06:56:46,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8358315488936474 [2024-11-09 06:56:46,034 INFO L175 Difference]: Start difference. First operand has 418 places, 420 transitions, 866 flow. Second operand 9 states and 3513 transitions. [2024-11-09 06:56:46,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 428 transitions, 976 flow [2024-11-09 06:56:46,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 428 transitions, 974 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:56:46,041 INFO L231 Difference]: Finished difference. Result has 428 places, 426 transitions, 914 flow [2024-11-09 06:56:46,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=914, PETRI_PLACES=428, PETRI_TRANSITIONS=426} [2024-11-09 06:56:46,042 INFO L277 CegarLoopForPetriNet]: 421 programPoint places, 7 predicate places. [2024-11-09 06:56:46,042 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 426 transitions, 914 flow [2024-11-09 06:56:46,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 386.8) internal successors, (3868), 10 states have internal predecessors, (3868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:46,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:46,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:46,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:56:46,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:46,245 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 06:56:46,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:46,246 INFO L85 PathProgramCache]: Analyzing trace with hash -813969170, now seen corresponding path program 2 times [2024-11-09 06:56:46,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:46,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745528198] [2024-11-09 06:56:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:46,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:46,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:46,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745528198] [2024-11-09 06:56:46,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745528198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:46,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947622214] [2024-11-09 06:56:46,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:56:46,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:46,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:46,373 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:46,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:56:46,469 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:56:46,469 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:56:46,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:56:46,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:46,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:56:46,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-09 06:56:46,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:46,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-09 06:56:46,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:46,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-09 06:56:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:56:46,655 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:46,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947622214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:46,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:56:46,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-09 06:56:46,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539914617] [2024-11-09 06:56:46,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:46,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:56:46,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:46,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:56:46,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:56:47,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 467 [2024-11-09 06:56:47,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 426 transitions, 914 flow. Second operand has 8 states, 8 states have (on average 316.125) internal successors, (2529), 8 states have internal predecessors, (2529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:47,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:47,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 467 [2024-11-09 06:56:47,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:13,266 INFO L124 PetriNetUnfolderBase]: 82046/203756 cut-off events. [2024-11-09 06:57:13,266 INFO L125 PetriNetUnfolderBase]: For 476/476 co-relation queries the response was YES. [2024-11-09 06:57:14,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324397 conditions, 203756 events. 82046/203756 cut-off events. For 476/476 co-relation queries the response was YES. Maximal size of possible extension queue 3792. Compared 2762920 event pairs, 70336 based on Foata normal form. 1/187024 useless extension candidates. Maximal degree in co-relation 324272. Up to 114325 conditions per place. [2024-11-09 06:57:14,878 INFO L140 encePairwiseOnDemand]: 455/467 looper letters, 193 selfloop transitions, 11 changer transitions 0/523 dead transitions. [2024-11-09 06:57:14,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 523 transitions, 1516 flow [2024-11-09 06:57:14,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:57:14,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 06:57:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2726 transitions. [2024-11-09 06:57:14,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7296573875802997 [2024-11-09 06:57:14,886 INFO L175 Difference]: Start difference. First operand has 428 places, 426 transitions, 914 flow. Second operand 8 states and 2726 transitions. [2024-11-09 06:57:14,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 523 transitions, 1516 flow [2024-11-09 06:57:14,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 523 transitions, 1510 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 06:57:14,894 INFO L231 Difference]: Finished difference. Result has 439 places, 434 transitions, 979 flow [2024-11-09 06:57:14,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=979, PETRI_PLACES=439, PETRI_TRANSITIONS=434} [2024-11-09 06:57:14,896 INFO L277 CegarLoopForPetriNet]: 421 programPoint places, 18 predicate places. [2024-11-09 06:57:14,896 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 434 transitions, 979 flow [2024-11-09 06:57:14,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 316.125) internal successors, (2529), 8 states have internal predecessors, (2529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:57:14,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:14,897 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:14,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:15,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:15,102 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 06:57:15,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:15,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1443152453, now seen corresponding path program 1 times [2024-11-09 06:57:15,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:15,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747653451] [2024-11-09 06:57:15,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:15,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:57:15,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:15,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747653451] [2024-11-09 06:57:15,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747653451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:15,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624990319] [2024-11-09 06:57:15,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:15,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:15,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:15,225 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:57:15,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 06:57:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:15,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:57:15,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:15,351 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:57:15,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:15,419 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:57:15,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624990319] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:57:15,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:57:15,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-09 06:57:15,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949795580] [2024-11-09 06:57:15,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:57:15,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:57:15,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:15,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:57:15,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:57:15,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 467 [2024-11-09 06:57:15,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 434 transitions, 979 flow. Second operand has 18 states, 18 states have (on average 386.94444444444446) internal successors, (6965), 18 states have internal predecessors, (6965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:57:15,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:15,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 467 [2024-11-09 06:57:15,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand