./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:31:09,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:31:09,333 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:31:09,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:31:09,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:31:09,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:31:09,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:31:09,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:31:09,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:31:09,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:31:09,363 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:31:09,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:31:09,364 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:31:09,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:31:09,364 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:31:09,364 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:31:09,364 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:31:09,364 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:31:09,364 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:31:09,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:31:09,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:31:09,365 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:31:09,365 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:31:09,365 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:31:09,365 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:31:09,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:31:09,365 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:31:09,365 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:31:09,366 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:31:09,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:31:09,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:31:09,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:31:09,366 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:31:09,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:31:09,366 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:31:09,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:31:09,367 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:31:09,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:31:09,367 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:31:09,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:31:09,367 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:31:09,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:31:09,367 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2025-02-08 05:31:09,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:31:09,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:31:09,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:31:09,602 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:31:09,602 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:31:09,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2025-02-08 05:31:10,847 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c706f3a52/e4746f2335b645f3bc3cdd8bd28cd35f/FLAG7edf1e5d7 [2025-02-08 05:31:11,281 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:31:11,282 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2025-02-08 05:31:11,316 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c706f3a52/e4746f2335b645f3bc3cdd8bd28cd35f/FLAG7edf1e5d7 [2025-02-08 05:31:11,346 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c706f3a52/e4746f2335b645f3bc3cdd8bd28cd35f [2025-02-08 05:31:11,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:31:11,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:31:11,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:31:11,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:31:11,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:31:11,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:11,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a31c57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11, skipping insertion in model container [2025-02-08 05:31:11,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:11,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:31:11,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:31:11,864 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:31:11,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:31:11,944 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:31:11,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11 WrapperNode [2025-02-08 05:31:11,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:31:11,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:31:11,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:31:11,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:31:11,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:11,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:11,994 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 148 [2025-02-08 05:31:11,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:31:11,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:31:11,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:31:11,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:31:12,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:12,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:12,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:12,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:12,023 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:12,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:12,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:12,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:12,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:31:12,032 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:31:12,036 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:31:12,036 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:31:12,037 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (1/1) ... [2025-02-08 05:31:12,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:31:12,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:12,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:31:12,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:31:12,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:31:12,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:31:12,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:31:12,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:31:12,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:31:12,095 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 05:31:12,095 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 05:31:12,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:31:12,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:31:12,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:31:12,096 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:31:12,195 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:31:12,197 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:31:12,478 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:31:12,478 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:31:12,498 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:31:12,500 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:31:12,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:31:12 BoogieIcfgContainer [2025-02-08 05:31:12,501 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:31:12,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:31:12,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:31:12,506 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:31:12,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:31:11" (1/3) ... [2025-02-08 05:31:12,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677aff9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:31:12, skipping insertion in model container [2025-02-08 05:31:12,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:11" (2/3) ... [2025-02-08 05:31:12,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677aff9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:31:12, skipping insertion in model container [2025-02-08 05:31:12,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:31:12" (3/3) ... [2025-02-08 05:31:12,509 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2025-02-08 05:31:12,520 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:31:12,522 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_06-tricky_address1.i that has 2 procedures, 158 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2025-02-08 05:31:12,522 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:31:12,585 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:31:12,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 160 transitions, 324 flow [2025-02-08 05:31:12,683 INFO L124 PetriNetUnfolderBase]: 3/159 cut-off events. [2025-02-08 05:31:12,685 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:31:12,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 159 events. 3/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2025-02-08 05:31:12,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 160 transitions, 324 flow [2025-02-08 05:31:12,694 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 159 transitions, 321 flow [2025-02-08 05:31:12,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:31:12,714 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;@e02d346, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:31:12,716 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-08 05:31:12,746 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:31:12,747 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2025-02-08 05:31:12,747 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:31:12,747 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:12,749 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] [2025-02-08 05:31:12,750 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:12,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:12,755 INFO L85 PathProgramCache]: Analyzing trace with hash 489885583, now seen corresponding path program 1 times [2025-02-08 05:31:12,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:12,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697528906] [2025-02-08 05:31:12,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:12,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:12,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-08 05:31:12,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-08 05:31:12,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:12,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:13,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:13,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697528906] [2025-02-08 05:31:13,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697528906] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:13,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:13,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:31:13,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109882125] [2025-02-08 05:31:13,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:13,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:31:13,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:13,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:31:13,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:31:13,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 160 [2025-02-08 05:31:13,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 159 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2025-02-08 05:31:13,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:13,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 160 [2025-02-08 05:31:13,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:13,249 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2025-02-08 05:31:13,250 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:31:13,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 7/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 324 event pairs, 6 based on Foata normal form. 5/214 useless extension candidates. Maximal degree in co-relation 144. Up to 24 conditions per place. [2025-02-08 05:31:13,253 INFO L140 encePairwiseOnDemand]: 155/160 looper letters, 10 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2025-02-08 05:31:13,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 343 flow [2025-02-08 05:31:13,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:31:13,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:31:13,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2025-02-08 05:31:13,266 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.95 [2025-02-08 05:31:13,269 INFO L175 Difference]: Start difference. First operand has 160 places, 159 transitions, 321 flow. Second operand 3 states and 456 transitions. [2025-02-08 05:31:13,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 343 flow [2025-02-08 05:31:13,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:31:13,278 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 326 flow [2025-02-08 05:31:13,280 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2025-02-08 05:31:13,284 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2025-02-08 05:31:13,285 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 326 flow [2025-02-08 05:31:13,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2025-02-08 05:31:13,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:13,287 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:13,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:31:13,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:13,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:13,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1681250623, now seen corresponding path program 1 times [2025-02-08 05:31:13,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:13,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281271315] [2025-02-08 05:31:13,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:13,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:13,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-08 05:31:13,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-08 05:31:13,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:13,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:13,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:13,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281271315] [2025-02-08 05:31:13,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281271315] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:13,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648855933] [2025-02-08 05:31:13,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:13,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:13,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:13,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:31:13,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 05:31:13,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-08 05:31:13,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-08 05:31:13,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:13,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:13,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:31:13,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:31:13,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:13,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:31:13,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:13,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648855933] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:31:13,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:31:13,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-08 05:31:13,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185695670] [2025-02-08 05:31:13,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:31:13,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:31:13,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:13,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:31:13,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:31:13,676 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-02-08 05:31:13,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 326 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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) [2025-02-08 05:31:13,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:13,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-02-08 05:31:13,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:13,795 INFO L124 PetriNetUnfolderBase]: 7/227 cut-off events. [2025-02-08 05:31:13,796 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:31:13,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 227 events. 7/227 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 319 event pairs, 6 based on Foata normal form. 2/218 useless extension candidates. Maximal degree in co-relation 191. Up to 24 conditions per place. [2025-02-08 05:31:13,797 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 14 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2025-02-08 05:31:13,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 390 flow [2025-02-08 05:31:13,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 05:31:13,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 05:31:13,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2025-02-08 05:31:13,801 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9173611111111111 [2025-02-08 05:31:13,801 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 326 flow. Second operand 9 states and 1321 transitions. [2025-02-08 05:31:13,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 390 flow [2025-02-08 05:31:13,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:31:13,803 INFO L231 Difference]: Finished difference. Result has 171 places, 163 transitions, 374 flow [2025-02-08 05:31:13,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=374, PETRI_PLACES=171, PETRI_TRANSITIONS=163} [2025-02-08 05:31:13,807 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2025-02-08 05:31:13,807 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 374 flow [2025-02-08 05:31:13,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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) [2025-02-08 05:31:13,808 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:13,809 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:13,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 05:31:14,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:14,013 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:14,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:14,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1189937025, now seen corresponding path program 2 times [2025-02-08 05:31:14,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:14,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474554391] [2025-02-08 05:31:14,016 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:14,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:14,035 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 109 statements into 2 equivalence classes. [2025-02-08 05:31:14,049 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 94 of 109 statements. [2025-02-08 05:31:14,052 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:14,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:14,473 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-08 05:31:14,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:14,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474554391] [2025-02-08 05:31:14,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474554391] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:14,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:14,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:14,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306644554] [2025-02-08 05:31:14,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:14,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:14,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:14,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:14,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:14,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 160 [2025-02-08 05:31:14,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 163 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 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) [2025-02-08 05:31:14,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:14,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 160 [2025-02-08 05:31:14,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:15,043 INFO L124 PetriNetUnfolderBase]: 103/540 cut-off events. [2025-02-08 05:31:15,043 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 05:31:15,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 540 events. 103/540 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2316 event pairs, 40 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 693. Up to 184 conditions per place. [2025-02-08 05:31:15,048 INFO L140 encePairwiseOnDemand]: 149/160 looper letters, 31 selfloop transitions, 22 changer transitions 0/192 dead transitions. [2025-02-08 05:31:15,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 192 transitions, 538 flow [2025-02-08 05:31:15,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:15,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:15,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2025-02-08 05:31:15,054 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.89375 [2025-02-08 05:31:15,054 INFO L175 Difference]: Start difference. First operand has 171 places, 163 transitions, 374 flow. Second operand 6 states and 858 transitions. [2025-02-08 05:31:15,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 192 transitions, 538 flow [2025-02-08 05:31:15,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 192 transitions, 532 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-08 05:31:15,059 INFO L231 Difference]: Finished difference. Result has 180 places, 184 transitions, 518 flow [2025-02-08 05:31:15,062 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=518, PETRI_PLACES=180, PETRI_TRANSITIONS=184} [2025-02-08 05:31:15,062 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 20 predicate places. [2025-02-08 05:31:15,062 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 184 transitions, 518 flow [2025-02-08 05:31:15,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 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) [2025-02-08 05:31:15,063 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:15,064 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:15,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:31:15,064 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:15,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:15,065 INFO L85 PathProgramCache]: Analyzing trace with hash 591590064, now seen corresponding path program 1 times [2025-02-08 05:31:15,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:15,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191830376] [2025-02-08 05:31:15,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:15,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:15,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-02-08 05:31:15,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-02-08 05:31:15,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:15,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:15,246 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:15,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:15,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191830376] [2025-02-08 05:31:15,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191830376] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:15,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400551167] [2025-02-08 05:31:15,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:15,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:15,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:15,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:31:15,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 05:31:15,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-02-08 05:31:15,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-02-08 05:31:15,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:15,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:15,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 05:31:15,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:31:15,386 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:15,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:31:15,476 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:15,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400551167] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:31:15,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:31:15,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-08 05:31:15,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819304790] [2025-02-08 05:31:15,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:31:15,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 05:31:15,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:15,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 05:31:15,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-08 05:31:15,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-02-08 05:31:15,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 184 transitions, 518 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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) [2025-02-08 05:31:15,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:15,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-02-08 05:31:15,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:15,721 INFO L124 PetriNetUnfolderBase]: 35/393 cut-off events. [2025-02-08 05:31:15,721 INFO L125 PetriNetUnfolderBase]: For 57/62 co-relation queries the response was YES. [2025-02-08 05:31:15,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 393 events. 35/393 cut-off events. For 57/62 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1194 event pairs, 11 based on Foata normal form. 4/381 useless extension candidates. Maximal degree in co-relation 476. Up to 51 conditions per place. [2025-02-08 05:31:15,724 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 18 selfloop transitions, 21 changer transitions 0/202 dead transitions. [2025-02-08 05:31:15,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 202 transitions, 684 flow [2025-02-08 05:31:15,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-08 05:31:15,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-08 05:31:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3067 transitions. [2025-02-08 05:31:15,732 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.912797619047619 [2025-02-08 05:31:15,732 INFO L175 Difference]: Start difference. First operand has 180 places, 184 transitions, 518 flow. Second operand 21 states and 3067 transitions. [2025-02-08 05:31:15,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 202 transitions, 684 flow [2025-02-08 05:31:15,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 202 transitions, 684 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:15,740 INFO L231 Difference]: Finished difference. Result has 205 places, 197 transitions, 648 flow [2025-02-08 05:31:15,740 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=648, PETRI_PLACES=205, PETRI_TRANSITIONS=197} [2025-02-08 05:31:15,741 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 45 predicate places. [2025-02-08 05:31:15,741 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 197 transitions, 648 flow [2025-02-08 05:31:15,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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) [2025-02-08 05:31:15,743 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:15,743 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:15,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 05:31:15,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:15,947 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:15,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:15,949 INFO L85 PathProgramCache]: Analyzing trace with hash -184331216, now seen corresponding path program 2 times [2025-02-08 05:31:15,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:15,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132161045] [2025-02-08 05:31:15,949 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:15,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:15,967 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 137 statements into 2 equivalence classes. [2025-02-08 05:31:15,976 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 137 statements. [2025-02-08 05:31:15,977 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:15,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-08 05:31:16,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:16,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132161045] [2025-02-08 05:31:16,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132161045] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:16,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:16,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:16,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097733506] [2025-02-08 05:31:16,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:16,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:16,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:16,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:16,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:16,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 160 [2025-02-08 05:31:16,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 197 transitions, 648 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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) [2025-02-08 05:31:16,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:16,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 160 [2025-02-08 05:31:16,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:16,813 INFO L124 PetriNetUnfolderBase]: 223/892 cut-off events. [2025-02-08 05:31:16,813 INFO L125 PetriNetUnfolderBase]: For 190/196 co-relation queries the response was YES. [2025-02-08 05:31:16,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1763 conditions, 892 events. 223/892 cut-off events. For 190/196 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4679 event pairs, 82 based on Foata normal form. 5/839 useless extension candidates. Maximal degree in co-relation 1566. Up to 407 conditions per place. [2025-02-08 05:31:16,818 INFO L140 encePairwiseOnDemand]: 145/160 looper letters, 53 selfloop transitions, 39 changer transitions 5/242 dead transitions. [2025-02-08 05:31:16,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 242 transitions, 962 flow [2025-02-08 05:31:16,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:16,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2025-02-08 05:31:16,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8791666666666667 [2025-02-08 05:31:16,820 INFO L175 Difference]: Start difference. First operand has 205 places, 197 transitions, 648 flow. Second operand 6 states and 844 transitions. [2025-02-08 05:31:16,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 242 transitions, 962 flow [2025-02-08 05:31:16,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 242 transitions, 938 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-08 05:31:16,826 INFO L231 Difference]: Finished difference. Result has 209 places, 233 transitions, 912 flow [2025-02-08 05:31:16,826 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=912, PETRI_PLACES=209, PETRI_TRANSITIONS=233} [2025-02-08 05:31:16,827 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 49 predicate places. [2025-02-08 05:31:16,827 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 233 transitions, 912 flow [2025-02-08 05:31:16,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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) [2025-02-08 05:31:16,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:16,828 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:16,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:31:16,828 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:16,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:16,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1149960540, now seen corresponding path program 1 times [2025-02-08 05:31:16,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:16,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598568155] [2025-02-08 05:31:16,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:16,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:16,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-02-08 05:31:16,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-02-08 05:31:16,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:16,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:17,242 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:17,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:17,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598568155] [2025-02-08 05:31:17,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598568155] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:17,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711464865] [2025-02-08 05:31:17,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:17,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:17,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:17,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:31:17,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 05:31:17,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-02-08 05:31:17,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-02-08 05:31:17,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:17,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:17,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 05:31:17,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:31:17,446 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:17,446 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:31:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:17,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711464865] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:31:17,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:31:17,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-02-08 05:31:17,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669115573] [2025-02-08 05:31:17,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:31:17,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 05:31:17,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:17,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 05:31:17,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-08 05:31:17,780 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-02-08 05:31:17,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 233 transitions, 912 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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) [2025-02-08 05:31:17,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:17,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-02-08 05:31:17,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:18,072 INFO L124 PetriNetUnfolderBase]: 123/664 cut-off events. [2025-02-08 05:31:18,073 INFO L125 PetriNetUnfolderBase]: For 324/327 co-relation queries the response was YES. [2025-02-08 05:31:18,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 664 events. 123/664 cut-off events. For 324/327 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2936 event pairs, 15 based on Foata normal form. 3/639 useless extension candidates. Maximal degree in co-relation 1133. Up to 118 conditions per place. [2025-02-08 05:31:18,076 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 21 selfloop transitions, 30 changer transitions 0/250 dead transitions. [2025-02-08 05:31:18,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 250 transitions, 1136 flow [2025-02-08 05:31:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-08 05:31:18,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-08 05:31:18,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4374 transitions. [2025-02-08 05:31:18,083 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91125 [2025-02-08 05:31:18,083 INFO L175 Difference]: Start difference. First operand has 209 places, 233 transitions, 912 flow. Second operand 30 states and 4374 transitions. [2025-02-08 05:31:18,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 250 transitions, 1136 flow [2025-02-08 05:31:18,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 250 transitions, 1104 flow, removed 16 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:18,089 INFO L231 Difference]: Finished difference. Result has 241 places, 243 transitions, 1032 flow [2025-02-08 05:31:18,089 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1032, PETRI_PLACES=241, PETRI_TRANSITIONS=243} [2025-02-08 05:31:18,091 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 81 predicate places. [2025-02-08 05:31:18,091 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 243 transitions, 1032 flow [2025-02-08 05:31:18,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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) [2025-02-08 05:31:18,093 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:18,093 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:18,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 05:31:18,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:18,297 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:18,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:18,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2056736754, now seen corresponding path program 2 times [2025-02-08 05:31:18,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:18,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266501561] [2025-02-08 05:31:18,298 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:18,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:18,312 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 154 statements into 2 equivalence classes. [2025-02-08 05:31:18,319 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 104 of 154 statements. [2025-02-08 05:31:18,319 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:18,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:18,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:18,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266501561] [2025-02-08 05:31:18,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266501561] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:18,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:18,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:18,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453674050] [2025-02-08 05:31:18,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:18,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:18,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:18,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:18,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:18,620 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 160 [2025-02-08 05:31:18,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 243 transitions, 1032 flow. Second operand has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 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) [2025-02-08 05:31:18,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:18,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 160 [2025-02-08 05:31:18,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:18,895 INFO L124 PetriNetUnfolderBase]: 212/925 cut-off events. [2025-02-08 05:31:18,896 INFO L125 PetriNetUnfolderBase]: For 576/620 co-relation queries the response was YES. [2025-02-08 05:31:18,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 925 events. 212/925 cut-off events. For 576/620 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4937 event pairs, 40 based on Foata normal form. 1/908 useless extension candidates. Maximal degree in co-relation 1908. Up to 338 conditions per place. [2025-02-08 05:31:18,902 INFO L140 encePairwiseOnDemand]: 149/160 looper letters, 72 selfloop transitions, 40 changer transitions 0/282 dead transitions. [2025-02-08 05:31:18,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 282 transitions, 1440 flow [2025-02-08 05:31:18,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:18,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:18,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2025-02-08 05:31:18,908 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.909375 [2025-02-08 05:31:18,908 INFO L175 Difference]: Start difference. First operand has 241 places, 243 transitions, 1032 flow. Second operand 6 states and 873 transitions. [2025-02-08 05:31:18,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 282 transitions, 1440 flow [2025-02-08 05:31:18,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 282 transitions, 1394 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-02-08 05:31:18,918 INFO L231 Difference]: Finished difference. Result has 233 places, 274 transitions, 1354 flow [2025-02-08 05:31:18,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1354, PETRI_PLACES=233, PETRI_TRANSITIONS=274} [2025-02-08 05:31:18,920 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 73 predicate places. [2025-02-08 05:31:18,920 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 274 transitions, 1354 flow [2025-02-08 05:31:18,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 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) [2025-02-08 05:31:18,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:18,921 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:18,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:31:18,921 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:18,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:18,922 INFO L85 PathProgramCache]: Analyzing trace with hash -162158218, now seen corresponding path program 1 times [2025-02-08 05:31:18,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:18,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428428417] [2025-02-08 05:31:18,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:18,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:18,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-02-08 05:31:18,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-02-08 05:31:18,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:18,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:19,454 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:19,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:19,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428428417] [2025-02-08 05:31:19,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428428417] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:19,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:19,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:19,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242448177] [2025-02-08 05:31:19,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:19,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:19,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:19,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:19,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:19,541 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 160 [2025-02-08 05:31:19,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 274 transitions, 1354 flow. Second operand has 6 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 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) [2025-02-08 05:31:19,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:19,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 160 [2025-02-08 05:31:19,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:19,767 INFO L124 PetriNetUnfolderBase]: 361/1326 cut-off events. [2025-02-08 05:31:19,768 INFO L125 PetriNetUnfolderBase]: For 1446/1474 co-relation queries the response was YES. [2025-02-08 05:31:19,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3665 conditions, 1326 events. 361/1326 cut-off events. For 1446/1474 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7977 event pairs, 87 based on Foata normal form. 2/1292 useless extension candidates. Maximal degree in co-relation 3405. Up to 610 conditions per place. [2025-02-08 05:31:19,775 INFO L140 encePairwiseOnDemand]: 145/160 looper letters, 100 selfloop transitions, 64 changer transitions 10/335 dead transitions. [2025-02-08 05:31:19,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 335 transitions, 2042 flow [2025-02-08 05:31:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:19,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 859 transitions. [2025-02-08 05:31:19,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8947916666666667 [2025-02-08 05:31:19,777 INFO L175 Difference]: Start difference. First operand has 233 places, 274 transitions, 1354 flow. Second operand 6 states and 859 transitions. [2025-02-08 05:31:19,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 335 transitions, 2042 flow [2025-02-08 05:31:19,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 335 transitions, 2024 flow, removed 9 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:19,789 INFO L231 Difference]: Finished difference. Result has 243 places, 321 transitions, 1922 flow [2025-02-08 05:31:19,789 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1922, PETRI_PLACES=243, PETRI_TRANSITIONS=321} [2025-02-08 05:31:19,790 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 83 predicate places. [2025-02-08 05:31:19,790 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 321 transitions, 1922 flow [2025-02-08 05:31:19,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 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) [2025-02-08 05:31:19,790 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:19,790 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:19,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:31:19,791 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:19,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:19,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1571568099, now seen corresponding path program 1 times [2025-02-08 05:31:19,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:19,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231879295] [2025-02-08 05:31:19,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:19,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:19,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-02-08 05:31:19,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-02-08 05:31:19,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:19,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:25,391 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:25,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:25,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231879295] [2025-02-08 05:31:25,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231879295] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:25,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:25,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-08 05:31:25,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717387021] [2025-02-08 05:31:25,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:25,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 05:31:25,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:25,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 05:31:25,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2025-02-08 05:31:27,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 160 [2025-02-08 05:31:27,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 321 transitions, 1922 flow. Second operand has 15 states, 15 states have (on average 121.73333333333333) internal successors, (1826), 15 states have internal predecessors, (1826), 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) [2025-02-08 05:31:27,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:27,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 160 [2025-02-08 05:31:27,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:28,748 INFO L124 PetriNetUnfolderBase]: 461/1566 cut-off events. [2025-02-08 05:31:28,748 INFO L125 PetriNetUnfolderBase]: For 2923/3003 co-relation queries the response was YES. [2025-02-08 05:31:28,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5173 conditions, 1566 events. 461/1566 cut-off events. For 2923/3003 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 9800 event pairs, 19 based on Foata normal form. 37/1587 useless extension candidates. Maximal degree in co-relation 4896. Up to 562 conditions per place. [2025-02-08 05:31:28,758 INFO L140 encePairwiseOnDemand]: 133/160 looper letters, 190 selfloop transitions, 84 changer transitions 47/471 dead transitions. [2025-02-08 05:31:28,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 471 transitions, 3654 flow [2025-02-08 05:31:28,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 05:31:28,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 05:31:28,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2298 transitions. [2025-02-08 05:31:28,763 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7979166666666667 [2025-02-08 05:31:28,763 INFO L175 Difference]: Start difference. First operand has 243 places, 321 transitions, 1922 flow. Second operand 18 states and 2298 transitions. [2025-02-08 05:31:28,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 471 transitions, 3654 flow [2025-02-08 05:31:28,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 471 transitions, 3568 flow, removed 43 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:28,782 INFO L231 Difference]: Finished difference. Result has 268 places, 358 transitions, 2482 flow [2025-02-08 05:31:28,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1848, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2482, PETRI_PLACES=268, PETRI_TRANSITIONS=358} [2025-02-08 05:31:28,784 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 108 predicate places. [2025-02-08 05:31:28,784 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 358 transitions, 2482 flow [2025-02-08 05:31:28,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 121.73333333333333) internal successors, (1826), 15 states have internal predecessors, (1826), 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) [2025-02-08 05:31:28,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:28,785 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:28,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 05:31:28,785 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:28,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:28,786 INFO L85 PathProgramCache]: Analyzing trace with hash -320685067, now seen corresponding path program 2 times [2025-02-08 05:31:28,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:28,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927083769] [2025-02-08 05:31:28,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:28,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:28,797 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 168 statements into 2 equivalence classes. [2025-02-08 05:31:28,806 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-02-08 05:31:28,806 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:28,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:29,264 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:29,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:29,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927083769] [2025-02-08 05:31:29,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927083769] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:29,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:29,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 05:31:29,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951749283] [2025-02-08 05:31:29,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:29,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:31:29,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:29,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:31:29,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:31:29,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 160 [2025-02-08 05:31:29,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 358 transitions, 2482 flow. Second operand has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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) [2025-02-08 05:31:29,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:29,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 160 [2025-02-08 05:31:29,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:30,568 INFO L124 PetriNetUnfolderBase]: 458/1562 cut-off events. [2025-02-08 05:31:30,568 INFO L125 PetriNetUnfolderBase]: For 4284/4330 co-relation queries the response was YES. [2025-02-08 05:31:30,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5969 conditions, 1562 events. 458/1562 cut-off events. For 4284/4330 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9765 event pairs, 44 based on Foata normal form. 19/1562 useless extension candidates. Maximal degree in co-relation 5682. Up to 662 conditions per place. [2025-02-08 05:31:30,579 INFO L140 encePairwiseOnDemand]: 140/160 looper letters, 165 selfloop transitions, 80 changer transitions 27/424 dead transitions. [2025-02-08 05:31:30,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 424 transitions, 3515 flow [2025-02-08 05:31:30,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 05:31:30,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 05:31:30,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1234 transitions. [2025-02-08 05:31:30,581 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8569444444444444 [2025-02-08 05:31:30,581 INFO L175 Difference]: Start difference. First operand has 268 places, 358 transitions, 2482 flow. Second operand 9 states and 1234 transitions. [2025-02-08 05:31:30,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 424 transitions, 3515 flow [2025-02-08 05:31:30,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 424 transitions, 3475 flow, removed 12 selfloop flow, removed 6 redundant places. [2025-02-08 05:31:30,608 INFO L231 Difference]: Finished difference. Result has 271 places, 359 transitions, 2649 flow [2025-02-08 05:31:30,608 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=2447, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2649, PETRI_PLACES=271, PETRI_TRANSITIONS=359} [2025-02-08 05:31:30,610 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 111 predicate places. [2025-02-08 05:31:30,610 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 359 transitions, 2649 flow [2025-02-08 05:31:30,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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) [2025-02-08 05:31:30,611 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:30,611 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:30,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 05:31:30,612 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:30,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:30,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1319053051, now seen corresponding path program 3 times [2025-02-08 05:31:30,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:30,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242822998] [2025-02-08 05:31:30,613 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:31:30,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:30,624 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 168 statements into 11 equivalence classes. [2025-02-08 05:31:30,630 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-02-08 05:31:30,630 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 05:31:30,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:31,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:31,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242822998] [2025-02-08 05:31:31,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242822998] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:31,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:31,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 05:31:31,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198914073] [2025-02-08 05:31:31,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:31,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:31:31,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:31,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:31:31,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:31:31,799 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 160 [2025-02-08 05:31:31,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 359 transitions, 2649 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2025-02-08 05:31:31,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:31,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 160 [2025-02-08 05:31:31,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:32,366 INFO L124 PetriNetUnfolderBase]: 754/2506 cut-off events. [2025-02-08 05:31:32,367 INFO L125 PetriNetUnfolderBase]: For 9057/9185 co-relation queries the response was YES. [2025-02-08 05:31:32,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10262 conditions, 2506 events. 754/2506 cut-off events. For 9057/9185 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 18816 event pairs, 62 based on Foata normal form. 48/2524 useless extension candidates. Maximal degree in co-relation 9972. Up to 612 conditions per place. [2025-02-08 05:31:32,382 INFO L140 encePairwiseOnDemand]: 141/160 looper letters, 329 selfloop transitions, 100 changer transitions 18/603 dead transitions. [2025-02-08 05:31:32,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 603 transitions, 6036 flow [2025-02-08 05:31:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 05:31:32,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 05:31:32,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1402 transitions. [2025-02-08 05:31:32,385 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.87625 [2025-02-08 05:31:32,385 INFO L175 Difference]: Start difference. First operand has 271 places, 359 transitions, 2649 flow. Second operand 10 states and 1402 transitions. [2025-02-08 05:31:32,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 603 transitions, 6036 flow [2025-02-08 05:31:32,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 603 transitions, 5900 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-02-08 05:31:32,422 INFO L231 Difference]: Finished difference. Result has 282 places, 439 transitions, 4069 flow [2025-02-08 05:31:32,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=2584, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4069, PETRI_PLACES=282, PETRI_TRANSITIONS=439} [2025-02-08 05:31:32,423 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 122 predicate places. [2025-02-08 05:31:32,423 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 439 transitions, 4069 flow [2025-02-08 05:31:32,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2025-02-08 05:31:32,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:32,424 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:32,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 05:31:32,424 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:32,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:32,424 INFO L85 PathProgramCache]: Analyzing trace with hash -649698653, now seen corresponding path program 4 times [2025-02-08 05:31:32,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:32,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074208575] [2025-02-08 05:31:32,425 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 05:31:32,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:32,434 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 168 statements into 2 equivalence classes. [2025-02-08 05:31:32,449 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 168 of 168 statements. [2025-02-08 05:31:32,449 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 05:31:32,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:33,305 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:33,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:33,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074208575] [2025-02-08 05:31:33,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074208575] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:33,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:33,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-08 05:31:33,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873662039] [2025-02-08 05:31:33,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:33,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 05:31:33,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:33,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 05:31:33,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2025-02-08 05:31:35,978 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-02-08 05:31:35,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 439 transitions, 4069 flow. Second operand has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 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) [2025-02-08 05:31:35,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:35,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-02-08 05:31:35,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:37,578 INFO L124 PetriNetUnfolderBase]: 850/2753 cut-off events. [2025-02-08 05:31:37,578 INFO L125 PetriNetUnfolderBase]: For 12937/13101 co-relation queries the response was YES. [2025-02-08 05:31:37,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12017 conditions, 2753 events. 850/2753 cut-off events. For 12937/13101 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 20508 event pairs, 93 based on Foata normal form. 93/2814 useless extension candidates. Maximal degree in co-relation 11721. Up to 1157 conditions per place. [2025-02-08 05:31:37,597 INFO L140 encePairwiseOnDemand]: 134/160 looper letters, 225 selfloop transitions, 174 changer transitions 13/561 dead transitions. [2025-02-08 05:31:37,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 561 transitions, 5826 flow [2025-02-08 05:31:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-02-08 05:31:37,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2025-02-08 05:31:37,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3278 transitions. [2025-02-08 05:31:37,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7879807692307692 [2025-02-08 05:31:37,599 INFO L175 Difference]: Start difference. First operand has 282 places, 439 transitions, 4069 flow. Second operand 26 states and 3278 transitions. [2025-02-08 05:31:37,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 561 transitions, 5826 flow [2025-02-08 05:31:37,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 561 transitions, 5798 flow, removed 9 selfloop flow, removed 1 redundant places. [2025-02-08 05:31:37,651 INFO L231 Difference]: Finished difference. Result has 323 places, 479 transitions, 4979 flow [2025-02-08 05:31:37,652 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=4047, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4979, PETRI_PLACES=323, PETRI_TRANSITIONS=479} [2025-02-08 05:31:37,652 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 163 predicate places. [2025-02-08 05:31:37,652 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 479 transitions, 4979 flow [2025-02-08 05:31:37,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 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) [2025-02-08 05:31:37,653 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:37,653 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:37,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 05:31:37,654 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:37,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:37,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1054947937, now seen corresponding path program 5 times [2025-02-08 05:31:37,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:37,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082600233] [2025-02-08 05:31:37,655 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 05:31:37,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:37,664 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 168 statements into 11 equivalence classes. [2025-02-08 05:31:37,699 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 168 of 168 statements. [2025-02-08 05:31:37,700 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 05:31:37,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:41,931 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:41,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:41,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082600233] [2025-02-08 05:31:41,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082600233] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:41,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992229006] [2025-02-08 05:31:41,932 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 05:31:41,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:41,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:41,934 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:31:41,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 05:31:41,991 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 168 statements into 11 equivalence classes. [2025-02-08 05:31:42,056 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 168 of 168 statements. [2025-02-08 05:31:42,056 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 05:31:42,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:42,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-02-08 05:31:42,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:31:42,132 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 16 treesize of output 12 [2025-02-08 05:31:42,228 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 [2025-02-08 05:31:42,296 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2025-02-08 05:31:42,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2025-02-08 05:31:42,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2025-02-08 05:31:42,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2025-02-08 05:31:42,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2025-02-08 05:31:42,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:31:42,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:31:42,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:31:42,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:31:42,741 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:31:42,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2025-02-08 05:31:42,978 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 05:31:42,978 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:31:43,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2025-02-08 05:31:43,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2025-02-08 05:31:43,682 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:43,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992229006] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:43,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:31:43,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34, 25] total 49 [2025-02-08 05:31:43,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783216317] [2025-02-08 05:31:43,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:43,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:31:43,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:43,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:31:43,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=2243, Unknown=0, NotChecked=0, Total=2450 [2025-02-08 05:31:45,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 160 [2025-02-08 05:31:45,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 479 transitions, 4979 flow. Second operand has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 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) [2025-02-08 05:31:45,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:45,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 160 [2025-02-08 05:31:45,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:48,641 INFO L124 PetriNetUnfolderBase]: 1273/3983 cut-off events. [2025-02-08 05:31:48,646 INFO L125 PetriNetUnfolderBase]: For 25672/25945 co-relation queries the response was YES. [2025-02-08 05:31:48,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19320 conditions, 3983 events. 1273/3983 cut-off events. For 25672/25945 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 32843 event pairs, 50 based on Foata normal form. 115/4071 useless extension candidates. Maximal degree in co-relation 19006. Up to 1053 conditions per place. [2025-02-08 05:31:48,696 INFO L140 encePairwiseOnDemand]: 137/160 looper letters, 374 selfloop transitions, 260 changer transitions 23/820 dead transitions. [2025-02-08 05:31:48,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 820 transitions, 10552 flow [2025-02-08 05:31:48,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 05:31:48,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-08 05:31:48,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2164 transitions. [2025-02-08 05:31:48,702 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8453125 [2025-02-08 05:31:48,706 INFO L175 Difference]: Start difference. First operand has 323 places, 479 transitions, 4979 flow. Second operand 16 states and 2164 transitions. [2025-02-08 05:31:48,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 820 transitions, 10552 flow [2025-02-08 05:31:48,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 820 transitions, 9904 flow, removed 104 selfloop flow, removed 5 redundant places. [2025-02-08 05:31:48,847 INFO L231 Difference]: Finished difference. Result has 345 places, 594 transitions, 7452 flow [2025-02-08 05:31:48,847 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=4653, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7452, PETRI_PLACES=345, PETRI_TRANSITIONS=594} [2025-02-08 05:31:48,848 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 185 predicate places. [2025-02-08 05:31:48,848 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 594 transitions, 7452 flow [2025-02-08 05:31:48,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 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) [2025-02-08 05:31:48,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:48,849 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:48,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 05:31:49,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-08 05:31:49,056 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:49,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash -255738827, now seen corresponding path program 6 times [2025-02-08 05:31:49,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:49,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300149254] [2025-02-08 05:31:49,058 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 05:31:49,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:49,071 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 168 statements into 11 equivalence classes. [2025-02-08 05:31:49,078 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-02-08 05:31:49,079 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 05:31:49,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:49,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:49,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300149254] [2025-02-08 05:31:49,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300149254] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:49,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:49,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 05:31:49,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124423456] [2025-02-08 05:31:49,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:49,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:31:49,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:49,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:31:49,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:31:50,794 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 160 [2025-02-08 05:31:50,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 594 transitions, 7452 flow. Second operand has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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) [2025-02-08 05:31:50,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:50,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 160 [2025-02-08 05:31:50,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:51,958 INFO L124 PetriNetUnfolderBase]: 1332/3996 cut-off events. [2025-02-08 05:31:51,959 INFO L125 PetriNetUnfolderBase]: For 33435/33754 co-relation queries the response was YES. [2025-02-08 05:31:51,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21541 conditions, 3996 events. 1332/3996 cut-off events. For 33435/33754 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 32768 event pairs, 219 based on Foata normal form. 140/4096 useless extension candidates. Maximal degree in co-relation 21215. Up to 1927 conditions per place. [2025-02-08 05:31:52,010 INFO L140 encePairwiseOnDemand]: 140/160 looper letters, 248 selfloop transitions, 254 changer transitions 18/683 dead transitions. [2025-02-08 05:31:52,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 683 transitions, 9712 flow [2025-02-08 05:31:52,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 05:31:52,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 05:31:52,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1731 transitions. [2025-02-08 05:31:52,013 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8322115384615385 [2025-02-08 05:31:52,014 INFO L175 Difference]: Start difference. First operand has 345 places, 594 transitions, 7452 flow. Second operand 13 states and 1731 transitions. [2025-02-08 05:31:52,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 683 transitions, 9712 flow [2025-02-08 05:31:52,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 683 transitions, 9584 flow, removed 64 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:52,297 INFO L231 Difference]: Finished difference. Result has 362 places, 625 transitions, 8564 flow [2025-02-08 05:31:52,298 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=7326, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8564, PETRI_PLACES=362, PETRI_TRANSITIONS=625} [2025-02-08 05:31:52,302 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 202 predicate places. [2025-02-08 05:31:52,302 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 625 transitions, 8564 flow [2025-02-08 05:31:52,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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) [2025-02-08 05:31:52,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:52,302 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:52,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 05:31:52,303 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:31:52,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:52,304 INFO L85 PathProgramCache]: Analyzing trace with hash -813343781, now seen corresponding path program 7 times [2025-02-08 05:31:52,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:52,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123040806] [2025-02-08 05:31:52,304 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 05:31:52,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:52,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-02-08 05:31:52,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-02-08 05:31:52,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:52,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:56,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:56,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123040806] [2025-02-08 05:31:56,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123040806] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:56,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:56,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-08 05:31:56,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265081000] [2025-02-08 05:31:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:56,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 05:31:56,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:56,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 05:31:56,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2025-02-08 05:31:58,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 160 [2025-02-08 05:31:58,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 625 transitions, 8564 flow. Second operand has 15 states, 15 states have (on average 121.73333333333333) internal successors, (1826), 15 states have internal predecessors, (1826), 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) [2025-02-08 05:31:58,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:58,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 160 [2025-02-08 05:31:58,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:32:00,223 INFO L124 PetriNetUnfolderBase]: 1236/3869 cut-off events. [2025-02-08 05:32:00,223 INFO L125 PetriNetUnfolderBase]: For 38802/39058 co-relation queries the response was YES. [2025-02-08 05:32:00,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21772 conditions, 3869 events. 1236/3869 cut-off events. For 38802/39058 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 32005 event pairs, 117 based on Foata normal form. 110/3933 useless extension candidates. Maximal degree in co-relation 21438. Up to 1219 conditions per place. [2025-02-08 05:32:00,269 INFO L140 encePairwiseOnDemand]: 135/160 looper letters, 446 selfloop transitions, 209 changer transitions 25/841 dead transitions. [2025-02-08 05:32:00,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 841 transitions, 12304 flow [2025-02-08 05:32:00,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 05:32:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 05:32:00,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2195 transitions. [2025-02-08 05:32:00,272 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8069852941176471 [2025-02-08 05:32:00,272 INFO L175 Difference]: Start difference. First operand has 362 places, 625 transitions, 8564 flow. Second operand 17 states and 2195 transitions. [2025-02-08 05:32:00,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 841 transitions, 12304 flow [2025-02-08 05:32:00,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 841 transitions, 11995 flow, removed 103 selfloop flow, removed 3 redundant places. [2025-02-08 05:32:00,570 INFO L231 Difference]: Finished difference. Result has 382 places, 659 transitions, 9661 flow [2025-02-08 05:32:00,570 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=8294, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=625, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9661, PETRI_PLACES=382, PETRI_TRANSITIONS=659} [2025-02-08 05:32:00,571 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 222 predicate places. [2025-02-08 05:32:00,571 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 659 transitions, 9661 flow [2025-02-08 05:32:00,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 121.73333333333333) internal successors, (1826), 15 states have internal predecessors, (1826), 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) [2025-02-08 05:32:00,572 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:32:00,572 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:32:00,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 05:32:00,572 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:32:00,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:32:00,573 INFO L85 PathProgramCache]: Analyzing trace with hash 569634147, now seen corresponding path program 8 times [2025-02-08 05:32:00,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:32:00,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741362837] [2025-02-08 05:32:00,573 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:32:00,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:32:00,583 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 168 statements into 2 equivalence classes. [2025-02-08 05:32:00,593 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-02-08 05:32:00,593 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:32:00,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:32:01,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:32:01,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741362837] [2025-02-08 05:32:01,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741362837] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:32:01,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:32:01,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 05:32:01,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213828737] [2025-02-08 05:32:01,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:32:01,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:32:01,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:32:01,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:32:01,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:32:01,900 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 160 [2025-02-08 05:32:01,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 659 transitions, 9661 flow. Second operand has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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) [2025-02-08 05:32:01,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:32:01,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 160 [2025-02-08 05:32:01,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:32:02,961 INFO L124 PetriNetUnfolderBase]: 1340/4036 cut-off events. [2025-02-08 05:32:02,961 INFO L125 PetriNetUnfolderBase]: For 48702/48952 co-relation queries the response was YES. [2025-02-08 05:32:02,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24019 conditions, 4036 events. 1340/4036 cut-off events. For 48702/48952 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 33300 event pairs, 223 based on Foata normal form. 100/4095 useless extension candidates. Maximal degree in co-relation 23678. Up to 1917 conditions per place. [2025-02-08 05:32:02,992 INFO L140 encePairwiseOnDemand]: 140/160 looper letters, 284 selfloop transitions, 280 changer transitions 18/745 dead transitions. [2025-02-08 05:32:02,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 745 transitions, 12190 flow [2025-02-08 05:32:02,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 05:32:02,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 05:32:02,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1850 transitions. [2025-02-08 05:32:02,998 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8258928571428571 [2025-02-08 05:32:02,998 INFO L175 Difference]: Start difference. First operand has 382 places, 659 transitions, 9661 flow. Second operand 14 states and 1850 transitions. [2025-02-08 05:32:02,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 745 transitions, 12190 flow [2025-02-08 05:32:03,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 745 transitions, 11747 flow, removed 111 selfloop flow, removed 7 redundant places. [2025-02-08 05:32:03,182 INFO L231 Difference]: Finished difference. Result has 397 places, 696 transitions, 10812 flow [2025-02-08 05:32:03,182 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=9232, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10812, PETRI_PLACES=397, PETRI_TRANSITIONS=696} [2025-02-08 05:32:03,182 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 237 predicate places. [2025-02-08 05:32:03,183 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 696 transitions, 10812 flow [2025-02-08 05:32:03,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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) [2025-02-08 05:32:03,183 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:32:03,183 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:32:03,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 05:32:03,184 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:32:03,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:32:03,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1998258951, now seen corresponding path program 9 times [2025-02-08 05:32:03,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:32:03,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590612956] [2025-02-08 05:32:03,185 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:32:03,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:32:03,193 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 168 statements into 11 equivalence classes. [2025-02-08 05:32:03,203 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-02-08 05:32:03,203 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 05:32:03,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:32:07,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:32:07,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590612956] [2025-02-08 05:32:07,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590612956] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:32:07,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:32:07,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-02-08 05:32:07,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556513113] [2025-02-08 05:32:07,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:32:07,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-08 05:32:07,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:32:07,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-08 05:32:07,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2025-02-08 05:32:10,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 160 [2025-02-08 05:32:10,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 696 transitions, 10812 flow. Second operand has 16 states, 16 states have (on average 112.0625) internal successors, (1793), 16 states have internal predecessors, (1793), 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) [2025-02-08 05:32:10,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:32:10,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 160 [2025-02-08 05:32:10,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:32:13,869 INFO L124 PetriNetUnfolderBase]: 1964/5622 cut-off events. [2025-02-08 05:32:13,870 INFO L125 PetriNetUnfolderBase]: For 75669/75962 co-relation queries the response was YES. [2025-02-08 05:32:13,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34830 conditions, 5622 events. 1964/5622 cut-off events. For 75669/75962 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 48405 event pairs, 226 based on Foata normal form. 121/5708 useless extension candidates. Maximal degree in co-relation 34481. Up to 1673 conditions per place. [2025-02-08 05:32:13,910 INFO L140 encePairwiseOnDemand]: 130/160 looper letters, 649 selfloop transitions, 285 changer transitions 37/1110 dead transitions. [2025-02-08 05:32:13,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 1110 transitions, 19182 flow [2025-02-08 05:32:13,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-08 05:32:13,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-02-08 05:32:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2311 transitions. [2025-02-08 05:32:13,914 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7601973684210527 [2025-02-08 05:32:13,914 INFO L175 Difference]: Start difference. First operand has 397 places, 696 transitions, 10812 flow. Second operand 19 states and 2311 transitions. [2025-02-08 05:32:13,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 1110 transitions, 19182 flow [2025-02-08 05:32:14,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 1110 transitions, 18682 flow, removed 203 selfloop flow, removed 2 redundant places. [2025-02-08 05:32:14,214 INFO L231 Difference]: Finished difference. Result has 424 places, 838 transitions, 14848 flow [2025-02-08 05:32:14,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=10521, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14848, PETRI_PLACES=424, PETRI_TRANSITIONS=838} [2025-02-08 05:32:14,215 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 264 predicate places. [2025-02-08 05:32:14,215 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 838 transitions, 14848 flow [2025-02-08 05:32:14,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 112.0625) internal successors, (1793), 16 states have internal predecessors, (1793), 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) [2025-02-08 05:32:14,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:32:14,216 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:32:14,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 05:32:14,216 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:32:14,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:32:14,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1586657949, now seen corresponding path program 10 times [2025-02-08 05:32:14,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:32:14,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396684405] [2025-02-08 05:32:14,218 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 05:32:14,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:32:14,226 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 168 statements into 2 equivalence classes. [2025-02-08 05:32:14,234 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 168 of 168 statements. [2025-02-08 05:32:14,234 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 05:32:14,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:32:15,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:32:15,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396684405] [2025-02-08 05:32:15,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396684405] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:32:15,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:32:15,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-08 05:32:15,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427347146] [2025-02-08 05:32:15,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:32:15,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 05:32:15,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:32:15,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 05:32:15,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2025-02-08 05:32:16,852 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-02-08 05:32:16,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 838 transitions, 14848 flow. Second operand has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 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) [2025-02-08 05:32:16,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:32:16,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-02-08 05:32:16,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:32:19,393 INFO L124 PetriNetUnfolderBase]: 2288/6611 cut-off events. [2025-02-08 05:32:19,393 INFO L125 PetriNetUnfolderBase]: For 106910/107309 co-relation queries the response was YES. [2025-02-08 05:32:19,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43593 conditions, 6611 events. 2288/6611 cut-off events. For 106910/107309 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 59831 event pairs, 236 based on Foata normal form. 143/6697 useless extension candidates. Maximal degree in co-relation 43234. Up to 2571 conditions per place. [2025-02-08 05:32:19,462 INFO L140 encePairwiseOnDemand]: 134/160 looper letters, 772 selfloop transitions, 291 changer transitions 0/1213 dead transitions. [2025-02-08 05:32:19,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1213 transitions, 23249 flow [2025-02-08 05:32:19,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-02-08 05:32:19,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-02-08 05:32:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3544 transitions. [2025-02-08 05:32:19,464 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7910714285714285 [2025-02-08 05:32:19,464 INFO L175 Difference]: Start difference. First operand has 424 places, 838 transitions, 14848 flow. Second operand 28 states and 3544 transitions. [2025-02-08 05:32:19,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1213 transitions, 23249 flow [2025-02-08 05:32:20,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1213 transitions, 23037 flow, removed 54 selfloop flow, removed 7 redundant places. [2025-02-08 05:32:20,084 INFO L231 Difference]: Finished difference. Result has 464 places, 978 transitions, 19206 flow [2025-02-08 05:32:20,085 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=14669, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=838, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=19206, PETRI_PLACES=464, PETRI_TRANSITIONS=978} [2025-02-08 05:32:20,086 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 304 predicate places. [2025-02-08 05:32:20,086 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 978 transitions, 19206 flow [2025-02-08 05:32:20,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 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) [2025-02-08 05:32:20,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:32:20,086 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:32:20,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 05:32:20,087 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:32:20,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:32:20,088 INFO L85 PathProgramCache]: Analyzing trace with hash 507103521, now seen corresponding path program 11 times [2025-02-08 05:32:20,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:32:20,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309038438] [2025-02-08 05:32:20,088 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 05:32:20,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:32:20,096 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 168 statements into 11 equivalence classes. [2025-02-08 05:32:20,106 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 168 of 168 statements. [2025-02-08 05:32:20,106 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 05:32:20,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:20,540 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:32:20,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:32:20,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309038438] [2025-02-08 05:32:20,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309038438] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:32:20,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:32:20,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 05:32:20,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156125413] [2025-02-08 05:32:20,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:32:20,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:32:20,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:32:20,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:32:20,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:32:21,326 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 160 [2025-02-08 05:32:21,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 978 transitions, 19206 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2025-02-08 05:32:21,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:32:21,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 160 [2025-02-08 05:32:21,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:32:23,071 INFO L124 PetriNetUnfolderBase]: 2094/6202 cut-off events. [2025-02-08 05:32:23,071 INFO L125 PetriNetUnfolderBase]: For 116601/117109 co-relation queries the response was YES. [2025-02-08 05:32:23,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42660 conditions, 6202 events. 2094/6202 cut-off events. For 116601/117109 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 57008 event pairs, 316 based on Foata normal form. 297/6427 useless extension candidates. Maximal degree in co-relation 42281. Up to 2955 conditions per place. [2025-02-08 05:32:23,143 INFO L140 encePairwiseOnDemand]: 140/160 looper letters, 351 selfloop transitions, 481 changer transitions 9/1022 dead transitions. [2025-02-08 05:32:23,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 1022 transitions, 21523 flow [2025-02-08 05:32:23,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 05:32:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 05:32:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1495 transitions. [2025-02-08 05:32:23,151 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8494318181818182 [2025-02-08 05:32:23,151 INFO L175 Difference]: Start difference. First operand has 464 places, 978 transitions, 19206 flow. Second operand 11 states and 1495 transitions. [2025-02-08 05:32:23,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 1022 transitions, 21523 flow [2025-02-08 05:32:23,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 1022 transitions, 21185 flow, removed 144 selfloop flow, removed 6 redundant places. [2025-02-08 05:32:23,738 INFO L231 Difference]: Finished difference. Result has 470 places, 982 transitions, 19966 flow [2025-02-08 05:32:23,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=18868, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=978, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=477, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19966, PETRI_PLACES=470, PETRI_TRANSITIONS=982} [2025-02-08 05:32:23,739 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 310 predicate places. [2025-02-08 05:32:23,739 INFO L471 AbstractCegarLoop]: Abstraction has has 470 places, 982 transitions, 19966 flow [2025-02-08 05:32:23,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2025-02-08 05:32:23,740 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:32:23,740 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:32:23,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 05:32:23,740 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:32:23,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:32:23,742 INFO L85 PathProgramCache]: Analyzing trace with hash 976767757, now seen corresponding path program 12 times [2025-02-08 05:32:23,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:32:23,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213107203] [2025-02-08 05:32:23,742 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 05:32:23,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:32:23,752 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 168 statements into 11 equivalence classes. [2025-02-08 05:32:23,756 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 116 of 168 statements. [2025-02-08 05:32:23,756 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 05:32:23,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-02-08 05:32:24,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:32:24,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213107203] [2025-02-08 05:32:24,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213107203] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:32:24,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:32:24,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 05:32:24,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324510796] [2025-02-08 05:32:24,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:32:24,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:32:24,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:32:24,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:32:24,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:32:25,511 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 160 [2025-02-08 05:32:25,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 982 transitions, 19966 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2025-02-08 05:32:25,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:32:25,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 160 [2025-02-08 05:32:25,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:32:27,255 INFO L124 PetriNetUnfolderBase]: 2110/6261 cut-off events. [2025-02-08 05:32:27,255 INFO L125 PetriNetUnfolderBase]: For 129102/129618 co-relation queries the response was YES. [2025-02-08 05:32:27,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44453 conditions, 6261 events. 2110/6261 cut-off events. For 129102/129618 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 57645 event pairs, 312 based on Foata normal form. 271/6456 useless extension candidates. Maximal degree in co-relation 44073. Up to 2931 conditions per place. [2025-02-08 05:32:27,320 INFO L140 encePairwiseOnDemand]: 140/160 looper letters, 391 selfloop transitions, 459 changer transitions 9/1040 dead transitions. [2025-02-08 05:32:27,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1040 transitions, 22666 flow [2025-02-08 05:32:27,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 05:32:27,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 05:32:27,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1361 transitions. [2025-02-08 05:32:27,321 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.850625 [2025-02-08 05:32:27,321 INFO L175 Difference]: Start difference. First operand has 470 places, 982 transitions, 19966 flow. Second operand 10 states and 1361 transitions. [2025-02-08 05:32:27,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1040 transitions, 22666 flow [2025-02-08 05:32:27,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 1040 transitions, 21689 flow, removed 24 selfloop flow, removed 8 redundant places. [2025-02-08 05:32:27,878 INFO L231 Difference]: Finished difference. Result has 475 places, 999 transitions, 20474 flow [2025-02-08 05:32:27,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=19035, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=442, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20474, PETRI_PLACES=475, PETRI_TRANSITIONS=999} [2025-02-08 05:32:27,879 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 315 predicate places. [2025-02-08 05:32:27,879 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 999 transitions, 20474 flow [2025-02-08 05:32:27,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2025-02-08 05:32:27,880 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:32:27,880 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:32:27,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-08 05:32:27,880 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 05:32:27,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:32:27,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1819052159, now seen corresponding path program 13 times [2025-02-08 05:32:27,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:32:27,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663826930] [2025-02-08 05:32:27,882 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 05:32:27,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:32:27,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-02-08 05:32:27,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-02-08 05:32:27,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:32:27,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-02-08 05:32:32,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:32:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663826930] [2025-02-08 05:32:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663826930] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:32:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234399658] [2025-02-08 05:32:32,218 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 05:32:32,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:32:32,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:32:32,221 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:32:32,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 05:32:32,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-02-08 05:32:32,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-02-08 05:32:32,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:32:32,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:32,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-02-08 05:32:32,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:32:32,735 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 16 treesize of output 12 [2025-02-08 05:32:32,770 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 [2025-02-08 05:32:32,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2025-02-08 05:32:32,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2025-02-08 05:32:32,960 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2025-02-08 05:32:32,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2025-02-08 05:32:33,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2025-02-08 05:32:33,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:33,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:33,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:33,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:33,162 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:32:33,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2025-02-08 05:32:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 05:32:33,282 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:32:33,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 49 treesize of output 47 [2025-02-08 05:32:33,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2025-02-08 05:32:33,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2025-02-08 05:32:33,897 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2025-02-08 05:32:33,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234399658] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 05:32:33,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:32:33,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14, 25] total 46 [2025-02-08 05:32:33,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835171815] [2025-02-08 05:32:33,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:32:33,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:32:33,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:32:33,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:32:33,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1987, Unknown=0, NotChecked=0, Total=2162 [2025-02-08 05:32:36,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 160 [2025-02-08 05:32:36,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 999 transitions, 20474 flow. Second operand has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 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) [2025-02-08 05:32:36,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:32:36,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 160 [2025-02-08 05:32:36,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:32:39,203 INFO L124 PetriNetUnfolderBase]: 2314/6739 cut-off events. [2025-02-08 05:32:39,203 INFO L125 PetriNetUnfolderBase]: For 137131/137689 co-relation queries the response was YES. [2025-02-08 05:32:39,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48340 conditions, 6739 events. 2314/6739 cut-off events. For 137131/137689 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 62242 event pairs, 241 based on Foata normal form. 247/6913 useless extension candidates. Maximal degree in co-relation 47958. Up to 2413 conditions per place. [2025-02-08 05:32:39,263 INFO L140 encePairwiseOnDemand]: 134/160 looper letters, 570 selfloop transitions, 604 changer transitions 3/1353 dead transitions. [2025-02-08 05:32:39,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 1353 transitions, 29192 flow [2025-02-08 05:32:39,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-08 05:32:39,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-02-08 05:32:39,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2523 transitions. [2025-02-08 05:32:39,265 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8299342105263158 [2025-02-08 05:32:39,265 INFO L175 Difference]: Start difference. First operand has 475 places, 999 transitions, 20474 flow. Second operand 19 states and 2523 transitions. [2025-02-08 05:32:39,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 1353 transitions, 29192 flow