./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 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:34:06,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:34:06,741 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:34:06,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:34:06,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:34:06,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:34:06,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:34:06,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:34:06,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:34:06,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:34:06,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:34:06,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:34:06,774 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:34:06,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:34:06,776 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:34:06,776 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:34:06,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:34:06,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:34:06,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:34:06,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:34:06,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:34:06,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:34:06,779 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:34:06,779 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:34:06,779 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:34:06,779 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:34:06,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:34:06,780 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:34:06,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:34:06,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:34:06,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:34:06,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:34:06,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:34:06,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:34:06,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:34:06,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:34:06,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:34:06,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:34:06,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:34:06,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:34:06,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:34:06,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba [2024-11-12 12:34:06,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:34:06,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:34:06,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:34:06,989 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:34:06,990 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:34:06,991 INFO L431 ainManager$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 [2024-11-12 12:34:08,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:34:08,362 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:34:08,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-11-12 12:34:08,382 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f4821f8c/26a0cd7a339a49de841554041955aeed/FLAGaa648249c [2024-11-12 12:34:08,393 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f4821f8c/26a0cd7a339a49de841554041955aeed [2024-11-12 12:34:08,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:34:08,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:34:08,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:34:08,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:34:08,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:34:08,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:08,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aa64d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08, skipping insertion in model container [2024-11-12 12:34:08,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:08,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:34:08,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:34:08,883 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:34:08,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:34:08,988 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:34:08,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08 WrapperNode [2024-11-12 12:34:08,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:34:08,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:34:08,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:34:08,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:34:08,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,053 INFO L138 Inliner]: procedures = 272, calls = 96, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 350 [2024-11-12 12:34:09,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:34:09,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:34:09,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:34:09,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:34:09,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:34:09,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:34:09,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:34:09,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:34:09,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (1/1) ... [2024-11-12 12:34:09,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:34:09,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:09,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 12:34:09,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 12:34:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 12:34:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 12:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:34:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:34:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:34:09,169 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:34:09,271 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:34:09,273 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:34:09,648 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:34:09,648 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:34:09,692 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:34:09,692 INFO L316 CfgBuilder]: Removed 25 assume(true) statements. [2024-11-12 12:34:09,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:34:09 BoogieIcfgContainer [2024-11-12 12:34:09,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:34:09,694 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:34:09,694 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:34:09,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:34:09,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:34:08" (1/3) ... [2024-11-12 12:34:09,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c2aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:34:09, skipping insertion in model container [2024-11-12 12:34:09,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:08" (2/3) ... [2024-11-12 12:34:09,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c2aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:34:09, skipping insertion in model container [2024-11-12 12:34:09,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:34:09" (3/3) ... [2024-11-12 12:34:09,699 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i [2024-11-12 12:34:09,713 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:34:09,714 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-12 12:34:09,714 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:34:09,787 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:34:09,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 320 places, 352 transitions, 711 flow [2024-11-12 12:34:10,005 INFO L124 PetriNetUnfolderBase]: 52/493 cut-off events. [2024-11-12 12:34:10,006 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:34:10,017 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. [2024-11-12 12:34:10,018 INFO L82 GeneralOperation]: Start removeDead. Operand has 320 places, 352 transitions, 711 flow [2024-11-12 12:34:10,025 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 320 places, 352 transitions, 711 flow [2024-11-12 12:34:10,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:34:10,042 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;@75660d27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:34:10,042 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-12 12:34:10,061 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:34:10,061 INFO L124 PetriNetUnfolderBase]: 5/120 cut-off events. [2024-11-12 12:34:10,061 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:34:10,061 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:10,062 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:10,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:10,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:10,067 INFO L85 PathProgramCache]: Analyzing trace with hash 80814904, now seen corresponding path program 1 times [2024-11-12 12:34:10,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:10,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612192268] [2024-11-12 12:34:10,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:10,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:10,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:10,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:10,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612192268] [2024-11-12 12:34:10,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612192268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:10,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:10,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:34:10,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587509948] [2024-11-12 12:34:10,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:10,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:10,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:10,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:10,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:10,433 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 352 [2024-11-12 12:34:10,437 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) [2024-11-12 12:34:10,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:10,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 352 [2024-11-12 12:34:10,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:10,665 INFO L124 PetriNetUnfolderBase]: 98/1383 cut-off events. [2024-11-12 12:34:10,665 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-12 12:34:10,671 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. [2024-11-12 12:34:10,675 INFO L140 encePairwiseOnDemand]: 320/352 looper letters, 23 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2024-11-12 12:34:10,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 320 transitions, 697 flow [2024-11-12 12:34:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:10,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2024-11-12 12:34:10,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.896780303030303 [2024-11-12 12:34:10,694 INFO L175 Difference]: Start difference. First operand has 320 places, 352 transitions, 711 flow. Second operand 3 states and 947 transitions. [2024-11-12 12:34:10,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 320 transitions, 697 flow [2024-11-12 12:34:10,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 320 transitions, 697 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:10,704 INFO L231 Difference]: Finished difference. Result has 319 places, 320 transitions, 657 flow [2024-11-12 12:34:10,706 INFO L262 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} [2024-11-12 12:34:10,710 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, -1 predicate places. [2024-11-12 12:34:10,710 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 320 transitions, 657 flow [2024-11-12 12:34:10,711 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) [2024-11-12 12:34:10,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:10,711 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:10,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:34:10,712 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:10,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:10,713 INFO L85 PathProgramCache]: Analyzing trace with hash 424190574, now seen corresponding path program 1 times [2024-11-12 12:34:10,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:10,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778662870] [2024-11-12 12:34:10,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:10,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:10,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:10,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:10,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778662870] [2024-11-12 12:34:10,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778662870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:10,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213420982] [2024-11-12 12:34:10,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:10,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:10,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:10,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:10,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 12:34:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:10,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 12:34:11,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:11,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:34:11,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:11,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213420982] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:34:11,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:34:11,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-12 12:34:11,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558513876] [2024-11-12 12:34:11,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:34:11,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 12:34:11,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:11,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 12:34:11,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 12:34:11,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-12 12:34:11,151 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) [2024-11-12 12:34:11,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:11,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-12 12:34:11,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:11,421 INFO L124 PetriNetUnfolderBase]: 98/1390 cut-off events. [2024-11-12 12:34:11,422 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2024-11-12 12:34:11,425 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. [2024-11-12 12:34:11,428 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 27 selfloop transitions, 9 changer transitions 0/328 dead transitions. [2024-11-12 12:34:11,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 328 transitions, 747 flow [2024-11-12 12:34:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:34:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:34:11,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2684 transitions. [2024-11-12 12:34:11,434 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8472222222222222 [2024-11-12 12:34:11,434 INFO L175 Difference]: Start difference. First operand has 319 places, 320 transitions, 657 flow. Second operand 9 states and 2684 transitions. [2024-11-12 12:34:11,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 328 transitions, 747 flow [2024-11-12 12:34:11,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 328 transitions, 745 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:34:11,440 INFO L231 Difference]: Finished difference. Result has 329 places, 326 transitions, 705 flow [2024-11-12 12:34:11,443 INFO L262 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} [2024-11-12 12:34:11,444 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, 9 predicate places. [2024-11-12 12:34:11,444 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 326 transitions, 705 flow [2024-11-12 12:34:11,446 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) [2024-11-12 12:34:11,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:11,446 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:11,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 12:34:11,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:11,652 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:11,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:11,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1399892142, now seen corresponding path program 2 times [2024-11-12 12:34:11,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:11,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223016298] [2024-11-12 12:34:11,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:11,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:11,842 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:11,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:11,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223016298] [2024-11-12 12:34:11,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223016298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:11,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942600430] [2024-11-12 12:34:11,843 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 12:34:11,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:11,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:11,846 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:11,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 12:34:11,924 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 12:34:11,924 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:34:11,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-12 12:34:11,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:11,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-12 12:34:12,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-12 12:34:12,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:34:12,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-12 12:34:12,084 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:34:12,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-12 12:34:12,116 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-12 12:34:12,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:34:12,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942600430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:12,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:34:12,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-12 12:34:12,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100495821] [2024-11-12 12:34:12,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:12,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 12:34:12,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:12,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 12:34:12,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-12 12:34:12,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 352 [2024-11-12 12:34:12,389 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) [2024-11-12 12:34:12,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:12,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 352 [2024-11-12 12:34:12,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:13,006 INFO L124 PetriNetUnfolderBase]: 1430/5664 cut-off events. [2024-11-12 12:34:13,006 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-12 12:34:13,013 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. [2024-11-12 12:34:13,025 INFO L140 encePairwiseOnDemand]: 340/352 looper letters, 134 selfloop transitions, 11 changer transitions 0/394 dead transitions. [2024-11-12 12:34:13,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 394 transitions, 1131 flow [2024-11-12 12:34:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 12:34:13,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 12:34:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2099 transitions. [2024-11-12 12:34:13,028 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7453835227272727 [2024-11-12 12:34:13,028 INFO L175 Difference]: Start difference. First operand has 329 places, 326 transitions, 705 flow. Second operand 8 states and 2099 transitions. [2024-11-12 12:34:13,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 394 transitions, 1131 flow [2024-11-12 12:34:13,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 394 transitions, 1125 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-12 12:34:13,034 INFO L231 Difference]: Finished difference. Result has 340 places, 333 transitions, 766 flow [2024-11-12 12:34:13,034 INFO L262 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} [2024-11-12 12:34:13,035 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, 20 predicate places. [2024-11-12 12:34:13,035 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 333 transitions, 766 flow [2024-11-12 12:34:13,036 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) [2024-11-12 12:34:13,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:13,036 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:13,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 12:34:13,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-12 12:34:13,237 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:13,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:13,238 INFO L85 PathProgramCache]: Analyzing trace with hash 300737964, now seen corresponding path program 1 times [2024-11-12 12:34:13,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:13,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813830344] [2024-11-12 12:34:13,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:13,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:13,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:13,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813830344] [2024-11-12 12:34:13,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813830344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:13,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567425363] [2024-11-12 12:34:13,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:13,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:13,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:13,391 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:13,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 12:34:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:13,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 12:34:13,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:13,548 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:13,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:34:13,629 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:13,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567425363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:34:13,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:34:13,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-12 12:34:13,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888719362] [2024-11-12 12:34:13,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:34:13,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-12 12:34:13,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:13,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-12 12:34:13,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-12 12:34:13,662 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-12 12:34:13,667 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) [2024-11-12 12:34:13,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:13,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-12 12:34:13,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:14,023 INFO L124 PetriNetUnfolderBase]: 112/1448 cut-off events. [2024-11-12 12:34:14,023 INFO L125 PetriNetUnfolderBase]: For 36/43 co-relation queries the response was YES. [2024-11-12 12:34:14,028 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. [2024-11-12 12:34:14,032 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 31 selfloop transitions, 21 changer transitions 0/351 dead transitions. [2024-11-12 12:34:14,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 351 transitions, 958 flow [2024-11-12 12:34:14,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 12:34:14,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-12 12:34:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6230 transitions. [2024-11-12 12:34:14,040 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8428030303030303 [2024-11-12 12:34:14,040 INFO L175 Difference]: Start difference. First operand has 340 places, 333 transitions, 766 flow. Second operand 21 states and 6230 transitions. [2024-11-12 12:34:14,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 351 transitions, 958 flow [2024-11-12 12:34:14,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 351 transitions, 951 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:34:14,045 INFO L231 Difference]: Finished difference. Result has 363 places, 346 transitions, 889 flow [2024-11-12 12:34:14,046 INFO L262 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} [2024-11-12 12:34:14,046 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, 43 predicate places. [2024-11-12 12:34:14,046 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 346 transitions, 889 flow [2024-11-12 12:34:14,049 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) [2024-11-12 12:34:14,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:14,050 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:14,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 12:34:14,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:14,250 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:14,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:14,251 INFO L85 PathProgramCache]: Analyzing trace with hash -53698004, now seen corresponding path program 2 times [2024-11-12 12:34:14,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:14,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880435027] [2024-11-12 12:34:14,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:14,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:14,598 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:14,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:14,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880435027] [2024-11-12 12:34:14,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880435027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:14,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020789975] [2024-11-12 12:34:14,599 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 12:34:14,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:14,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:14,600 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:14,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 12:34:14,679 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 12:34:14,679 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:34:14,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-12 12:34:14,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:14,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-12 12:34:14,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-12 12:34:14,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:34:14,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-12 12:34:14,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:34:14,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-12 12:34:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-12 12:34:14,780 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:34:14,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020789975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:14,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:34:14,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-12 12:34:14,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316219042] [2024-11-12 12:34:14,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:14,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:34:14,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:14,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:34:14,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-12 12:34:15,014 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 352 [2024-11-12 12:34:15,017 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) [2024-11-12 12:34:15,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:15,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 352 [2024-11-12 12:34:15,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:15,883 INFO L124 PetriNetUnfolderBase]: 1516/5816 cut-off events. [2024-11-12 12:34:15,883 INFO L125 PetriNetUnfolderBase]: For 313/321 co-relation queries the response was YES. [2024-11-12 12:34:15,896 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. [2024-11-12 12:34:15,909 INFO L140 encePairwiseOnDemand]: 325/352 looper letters, 107 selfloop transitions, 92 changer transitions 0/462 dead transitions. [2024-11-12 12:34:15,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 462 transitions, 1541 flow [2024-11-12 12:34:15,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:34:15,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:34:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1664 transitions. [2024-11-12 12:34:15,913 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7878787878787878 [2024-11-12 12:34:15,913 INFO L175 Difference]: Start difference. First operand has 363 places, 346 transitions, 889 flow. Second operand 6 states and 1664 transitions. [2024-11-12 12:34:15,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 462 transitions, 1541 flow [2024-11-12 12:34:15,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 462 transitions, 1517 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-12 12:34:15,923 INFO L231 Difference]: Finished difference. Result has 367 places, 430 transitions, 1473 flow [2024-11-12 12:34:15,924 INFO L262 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} [2024-11-12 12:34:15,924 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, 47 predicate places. [2024-11-12 12:34:15,925 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 430 transitions, 1473 flow [2024-11-12 12:34:15,925 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) [2024-11-12 12:34:15,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:15,926 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:15,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 12:34:16,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:16,131 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:16,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:16,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1664637069, now seen corresponding path program 1 times [2024-11-12 12:34:16,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:16,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997565611] [2024-11-12 12:34:16,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:16,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:16,446 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:16,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:16,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997565611] [2024-11-12 12:34:16,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997565611] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:16,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462358021] [2024-11-12 12:34:16,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:16,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:16,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:16,449 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:16,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 12:34:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:16,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 12:34:16,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:16,605 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:16,606 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:34:16,750 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:16,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462358021] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:34:16,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:34:16,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-12 12:34:16,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597197984] [2024-11-12 12:34:16,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:34:16,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-12 12:34:16,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:16,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-12 12:34:16,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-12 12:34:16,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-12 12:34:16,781 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) [2024-11-12 12:34:16,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:16,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-12 12:34:16,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:17,242 INFO L124 PetriNetUnfolderBase]: 296/2251 cut-off events. [2024-11-12 12:34:17,243 INFO L125 PetriNetUnfolderBase]: For 560/621 co-relation queries the response was YES. [2024-11-12 12:34:17,251 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. [2024-11-12 12:34:17,257 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 34 selfloop transitions, 30 changer transitions 0/447 dead transitions. [2024-11-12 12:34:17,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 447 transitions, 1723 flow [2024-11-12 12:34:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-12 12:34:17,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-12 12:34:17,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8887 transitions. [2024-11-12 12:34:17,269 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8415719696969697 [2024-11-12 12:34:17,269 INFO L175 Difference]: Start difference. First operand has 367 places, 430 transitions, 1473 flow. Second operand 30 states and 8887 transitions. [2024-11-12 12:34:17,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 447 transitions, 1723 flow [2024-11-12 12:34:17,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 447 transitions, 1705 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:17,281 INFO L231 Difference]: Finished difference. Result has 400 places, 440 transitions, 1607 flow [2024-11-12 12:34:17,281 INFO L262 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} [2024-11-12 12:34:17,282 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, 80 predicate places. [2024-11-12 12:34:17,282 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 440 transitions, 1607 flow [2024-11-12 12:34:17,284 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) [2024-11-12 12:34:17,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:17,285 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:17,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 12:34:17,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:17,490 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:17,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:17,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1312531305, now seen corresponding path program 2 times [2024-11-12 12:34:17,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:17,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097947812] [2024-11-12 12:34:17,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:17,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:34:17,519 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:34:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:34:17,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:34:17,565 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:34:17,565 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-12 12:34:17,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-12 12:34:17,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-12 12:34:17,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-12 12:34:17,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-12 12:34:17,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-12 12:34:17,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-12 12:34:17,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-12 12:34:17,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-12 12:34:17,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-12 12:34:17,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-12 12:34:17,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-12 12:34:17,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-12 12:34:17,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-12 12:34:17,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-12 12:34:17,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-12 12:34:17,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-12 12:34:17,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-12 12:34:17,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:34:17,583 INFO L421 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-11-12 12:34:17,585 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:34:17,585 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:34:17,614 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 12:34:17,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 421 places, 467 transitions, 950 flow [2024-11-12 12:34:17,688 INFO L124 PetriNetUnfolderBase]: 87/777 cut-off events. [2024-11-12 12:34:17,688 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 12:34:17,697 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. [2024-11-12 12:34:17,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 421 places, 467 transitions, 950 flow [2024-11-12 12:34:17,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 467 transitions, 950 flow [2024-11-12 12:34:17,709 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:34:17,709 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;@75660d27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:34:17,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-12 12:34:17,717 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:34:17,719 INFO L124 PetriNetUnfolderBase]: 5/120 cut-off events. [2024-11-12 12:34:17,719 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:34:17,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:17,719 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:17,720 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:17,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:17,720 INFO L85 PathProgramCache]: Analyzing trace with hash 507860939, now seen corresponding path program 1 times [2024-11-12 12:34:17,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:17,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499971535] [2024-11-12 12:34:17,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:17,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:17,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:17,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:17,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499971535] [2024-11-12 12:34:17,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499971535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:17,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:17,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:34:17,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894908520] [2024-11-12 12:34:17,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:17,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:17,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:17,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:17,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:17,773 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 467 [2024-11-12 12:34:17,774 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) [2024-11-12 12:34:17,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:17,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 467 [2024-11-12 12:34:17,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:19,398 INFO L124 PetriNetUnfolderBase]: 1782/12900 cut-off events. [2024-11-12 12:34:19,399 INFO L125 PetriNetUnfolderBase]: For 126/133 co-relation queries the response was YES. [2024-11-12 12:34:19,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15564 conditions, 12900 events. 1782/12900 cut-off events. For 126/133 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. [2024-11-12 12:34:19,468 INFO L140 encePairwiseOnDemand]: 422/467 looper letters, 33 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2024-11-12 12:34:19,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 926 flow [2024-11-12 12:34:19,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:19,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:19,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1243 transitions. [2024-11-12 12:34:19,470 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8872234118486795 [2024-11-12 12:34:19,470 INFO L175 Difference]: Start difference. First operand has 421 places, 467 transitions, 950 flow. Second operand 3 states and 1243 transitions. [2024-11-12 12:34:19,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 926 flow [2024-11-12 12:34:19,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 420 transitions, 926 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:19,475 INFO L231 Difference]: Finished difference. Result has 418 places, 420 transitions, 866 flow [2024-11-12 12:34:19,476 INFO L262 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} [2024-11-12 12:34:19,476 INFO L279 CegarLoopForPetriNet]: 421 programPoint places, -3 predicate places. [2024-11-12 12:34:19,477 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 420 transitions, 866 flow [2024-11-12 12:34:19,477 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) [2024-11-12 12:34:19,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:19,477 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:19,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:34:19,477 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:19,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1715630386, now seen corresponding path program 1 times [2024-11-12 12:34:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:19,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412615232] [2024-11-12 12:34:19,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:19,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:19,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:19,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:19,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412615232] [2024-11-12 12:34:19,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412615232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:19,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924342216] [2024-11-12 12:34:19,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:19,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:19,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:19,532 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:19,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 12:34:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:19,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 12:34:19,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:19,711 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:34:19,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:19,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924342216] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:34:19,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:34:19,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-12 12:34:19,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436609895] [2024-11-12 12:34:19,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:34:19,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 12:34:19,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:19,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 12:34:19,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 12:34:19,749 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 467 [2024-11-12 12:34:19,752 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) [2024-11-12 12:34:19,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:19,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 467 [2024-11-12 12:34:19,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:21,405 INFO L124 PetriNetUnfolderBase]: 1782/12907 cut-off events. [2024-11-12 12:34:21,406 INFO L125 PetriNetUnfolderBase]: For 127/134 co-relation queries the response was YES. [2024-11-12 12:34:21,447 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. [2024-11-12 12:34:21,475 INFO L140 encePairwiseOnDemand]: 461/467 looper letters, 37 selfloop transitions, 9 changer transitions 0/428 dead transitions. [2024-11-12 12:34:21,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 428 transitions, 976 flow [2024-11-12 12:34:21,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:34:21,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:34:21,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3513 transitions. [2024-11-12 12:34:21,481 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8358315488936474 [2024-11-12 12:34:21,481 INFO L175 Difference]: Start difference. First operand has 418 places, 420 transitions, 866 flow. Second operand 9 states and 3513 transitions. [2024-11-12 12:34:21,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 428 transitions, 976 flow [2024-11-12 12:34:21,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 428 transitions, 974 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:34:21,486 INFO L231 Difference]: Finished difference. Result has 428 places, 426 transitions, 914 flow [2024-11-12 12:34:21,487 INFO L262 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} [2024-11-12 12:34:21,488 INFO L279 CegarLoopForPetriNet]: 421 programPoint places, 7 predicate places. [2024-11-12 12:34:21,488 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 426 transitions, 914 flow [2024-11-12 12:34:21,489 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) [2024-11-12 12:34:21,489 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:21,489 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:21,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-12 12:34:21,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:21,690 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:21,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:21,691 INFO L85 PathProgramCache]: Analyzing trace with hash -813969170, now seen corresponding path program 2 times [2024-11-12 12:34:21,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:21,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083201397] [2024-11-12 12:34:21,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:21,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:21,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:21,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083201397] [2024-11-12 12:34:21,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083201397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:21,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355462886] [2024-11-12 12:34:21,783 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 12:34:21,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:21,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:21,785 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:21,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 12:34:21,869 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 12:34:21,869 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:34:21,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-12 12:34:21,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:21,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-12 12:34:21,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-12 12:34:21,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:34:21,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-12 12:34:22,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:34:22,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-12 12:34:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-12 12:34:22,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:34:22,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355462886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:22,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:34:22,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-12 12:34:22,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320672944] [2024-11-12 12:34:22,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:22,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 12:34:22,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:22,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 12:34:22,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-12 12:34:22,342 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 467 [2024-11-12 12:34:22,343 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) [2024-11-12 12:34:22,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:22,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 467 [2024-11-12 12:34:22,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:45,985 INFO L124 PetriNetUnfolderBase]: 82046/203756 cut-off events. [2024-11-12 12:34:45,985 INFO L125 PetriNetUnfolderBase]: For 476/476 co-relation queries the response was YES. [2024-11-12 12:34:46,658 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. [2024-11-12 12:34:47,329 INFO L140 encePairwiseOnDemand]: 455/467 looper letters, 193 selfloop transitions, 11 changer transitions 0/523 dead transitions. [2024-11-12 12:34:47,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 523 transitions, 1516 flow [2024-11-12 12:34:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 12:34:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 12:34:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2726 transitions. [2024-11-12 12:34:47,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7296573875802997 [2024-11-12 12:34:47,334 INFO L175 Difference]: Start difference. First operand has 428 places, 426 transitions, 914 flow. Second operand 8 states and 2726 transitions. [2024-11-12 12:34:47,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 523 transitions, 1516 flow [2024-11-12 12:34:47,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 523 transitions, 1510 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-12 12:34:47,341 INFO L231 Difference]: Finished difference. Result has 439 places, 434 transitions, 979 flow [2024-11-12 12:34:47,341 INFO L262 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} [2024-11-12 12:34:47,341 INFO L279 CegarLoopForPetriNet]: 421 programPoint places, 18 predicate places. [2024-11-12 12:34:47,342 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 434 transitions, 979 flow [2024-11-12 12:34:47,343 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) [2024-11-12 12:34:47,343 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:47,343 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:47,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-12 12:34:47,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:47,548 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:47,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:47,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1443152453, now seen corresponding path program 1 times [2024-11-12 12:34:47,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:47,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553742743] [2024-11-12 12:34:47,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:47,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:47,651 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:47,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:47,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553742743] [2024-11-12 12:34:47,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553742743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:34:47,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944440963] [2024-11-12 12:34:47,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:47,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:34:47,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:47,654 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:34:47,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 12:34:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:47,745 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 12:34:47,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:34:47,771 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:47,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:34:47,833 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:47,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944440963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:34:47,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:34:47,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-12 12:34:47,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844130869] [2024-11-12 12:34:47,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:34:47,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-12 12:34:47,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:47,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-12 12:34:47,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-12 12:34:47,877 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 467 [2024-11-12 12:34:47,885 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) [2024-11-12 12:34:47,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:47,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 467 [2024-11-12 12:34:47,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand