./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.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_08-tricky_address3.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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:31:10,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:31:10,066 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:31:10,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:31:10,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:31:10,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:31:10,086 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:31:10,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:31:10,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:31:10,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:31:10,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:31:10,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:31:10,087 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:31:10,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:31:10,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:31:10,087 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:31:10,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:31:10,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:31:10,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:31:10,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:31:10,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:31:10,088 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:31:10,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:31:10,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:31:10,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:31:10,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:31:10,089 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 -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2025-02-08 05:31:10,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:31:10,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:31:10,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:31:10,327 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:31:10,327 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:31:10,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2025-02-08 05:31:11,482 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/856d7c252/344e4b9353d4482981158963d7e8282c/FLAG6a1ae21fd [2025-02-08 05:31:11,758 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:31:11,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2025-02-08 05:31:11,768 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/856d7c252/344e4b9353d4482981158963d7e8282c/FLAG6a1ae21fd [2025-02-08 05:31:12,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/856d7c252/344e4b9353d4482981158963d7e8282c [2025-02-08 05:31:12,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:31:12,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:31:12,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:31:12,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:31:12,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:31:12,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75254f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12, skipping insertion in model container [2025-02-08 05:31:12,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:31:12,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:31:12,423 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:31:12,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:31:12,513 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:31:12,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12 WrapperNode [2025-02-08 05:31:12,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:31:12,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:31:12,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:31:12,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:31:12,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,561 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 151 [2025-02-08 05:31:12,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:31:12,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:31:12,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:31:12,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:31:12,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,594 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:31:12,608 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:31:12,610 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:31:12,610 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:31:12,611 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (1/1) ... [2025-02-08 05:31:12,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:31:12,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:12,641 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 05:31:12,644 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 05:31:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:31:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:31:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:31:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:31:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:31:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 05:31:12,667 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 05:31:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:31:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:31:12,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:31:12,668 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 05:31:12,768 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:31:12,769 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:31:13,055 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:31:13,055 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:31:13,073 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:31:13,073 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:31:13,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:31:13 BoogieIcfgContainer [2025-02-08 05:31:13,073 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:31:13,075 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:31:13,075 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:31:13,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:31:13,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:31:12" (1/3) ... [2025-02-08 05:31:13,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a9d149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:31:13, skipping insertion in model container [2025-02-08 05:31:13,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:12" (2/3) ... [2025-02-08 05:31:13,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a9d149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:31:13, skipping insertion in model container [2025-02-08 05:31:13,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:31:13" (3/3) ... [2025-02-08 05:31:13,081 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2025-02-08 05:31:13,091 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:31:13,092 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_08-tricky_address3.i that has 2 procedures, 161 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2025-02-08 05:31:13,092 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:31:13,162 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:31:13,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 163 transitions, 330 flow [2025-02-08 05:31:13,257 INFO L124 PetriNetUnfolderBase]: 3/162 cut-off events. [2025-02-08 05:31:13,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:31:13,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 162 events. 3/162 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. 0/155 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2025-02-08 05:31:13,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 163 transitions, 330 flow [2025-02-08 05:31:13,270 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 162 transitions, 327 flow [2025-02-08 05:31:13,276 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:31:13,285 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;@6fcd58fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:31:13,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-08 05:31:13,304 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:31:13,304 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2025-02-08 05:31:13,304 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:31:13,304 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:13,305 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 05:31:13,305 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 05:31:13,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:13,310 INFO L85 PathProgramCache]: Analyzing trace with hash -286217908, now seen corresponding path program 1 times [2025-02-08 05:31:13,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:13,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335829770] [2025-02-08 05:31:13,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:13,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:13,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-08 05:31:13,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-08 05:31:13,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:13,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:13,622 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 05:31:13,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:13,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335829770] [2025-02-08 05:31:13,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335829770] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:13,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:13,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:31:13,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95729252] [2025-02-08 05:31:13,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:13,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:31:13,637 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 3 interpolants. [2025-02-08 05:31:13,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:31:13,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 163 [2025-02-08 05:31:13,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 162 transitions, 327 flow. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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 05:31:13,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:13,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 163 [2025-02-08 05:31:13,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:13,742 INFO L124 PetriNetUnfolderBase]: 7/224 cut-off events. [2025-02-08 05:31:13,742 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:31:13,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 224 events. 7/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 336 event pairs, 6 based on Foata normal form. 5/217 useless extension candidates. Maximal degree in co-relation 147. Up to 24 conditions per place. [2025-02-08 05:31:13,746 INFO L140 encePairwiseOnDemand]: 158/163 looper letters, 10 selfloop transitions, 2 changer transitions 1/161 dead transitions. [2025-02-08 05:31:13,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 349 flow [2025-02-08 05:31:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:31:13,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:31:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2025-02-08 05:31:13,761 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.950920245398773 [2025-02-08 05:31:13,762 INFO L175 Difference]: Start difference. First operand has 163 places, 162 transitions, 327 flow. Second operand 3 states and 465 transitions. [2025-02-08 05:31:13,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 349 flow [2025-02-08 05:31:13,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 161 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:31:13,771 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 332 flow [2025-02-08 05:31:13,773 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2025-02-08 05:31:13,777 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 2 predicate places. [2025-02-08 05:31:13,777 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 332 flow [2025-02-08 05:31:13,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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 05:31:13,778 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:13,779 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 05:31:13,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:31:13,780 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 05:31:13,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:13,781 INFO L85 PathProgramCache]: Analyzing trace with hash 685387546, now seen corresponding path program 1 times [2025-02-08 05:31:13,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:13,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773638722] [2025-02-08 05:31:13,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:13,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:13,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-08 05:31:13,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-08 05:31:13,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:13,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:13,984 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 05:31:13,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:13,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773638722] [2025-02-08 05:31:13,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773638722] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:13,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190034896] [2025-02-08 05:31:13,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:13,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:13,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:13,987 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 05:31:13,989 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 05:31:14,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-08 05:31:14,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-08 05:31:14,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:14,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:14,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:31:14,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:31:14,153 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 05:31:14,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:31:14,199 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 05:31:14,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190034896] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:31:14,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:31:14,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-08 05:31:14,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736099063] [2025-02-08 05:31:14,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:31:14,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:31:14,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:14,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:31:14,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:31:14,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 163 [2025-02-08 05:31:14,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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 05:31:14,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:14,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 163 [2025-02-08 05:31:14,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:14,335 INFO L124 PetriNetUnfolderBase]: 7/230 cut-off events. [2025-02-08 05:31:14,335 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:31:14,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 230 events. 7/230 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 326 event pairs, 6 based on Foata normal form. 2/221 useless extension candidates. Maximal degree in co-relation 194. Up to 24 conditions per place. [2025-02-08 05:31:14,336 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 14 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2025-02-08 05:31:14,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 396 flow [2025-02-08 05:31:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 05:31:14,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 05:31:14,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1348 transitions. [2025-02-08 05:31:14,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9188820722563054 [2025-02-08 05:31:14,341 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 332 flow. Second operand 9 states and 1348 transitions. [2025-02-08 05:31:14,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 396 flow [2025-02-08 05:31:14,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:31:14,345 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2025-02-08 05:31:14,345 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=174, PETRI_TRANSITIONS=166} [2025-02-08 05:31:14,346 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 11 predicate places. [2025-02-08 05:31:14,346 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2025-02-08 05:31:14,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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 05:31:14,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:14,348 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 05:31:14,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 05:31:14,550 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 05:31:14,550 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 05:31:14,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:14,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1479620186, now seen corresponding path program 2 times [2025-02-08 05:31:14,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:14,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147478115] [2025-02-08 05:31:14,551 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:14,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:14,569 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 109 statements into 2 equivalence classes. [2025-02-08 05:31:14,584 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 94 of 109 statements. [2025-02-08 05:31:14,584 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:14,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:15,037 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 05:31:15,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:15,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147478115] [2025-02-08 05:31:15,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147478115] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:15,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:15,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:15,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280207503] [2025-02-08 05:31:15,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:15,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:15,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:15,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:15,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:15,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 163 [2025-02-08 05:31:15,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 166 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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 05:31:15,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:15,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 163 [2025-02-08 05:31:15,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:15,707 INFO L124 PetriNetUnfolderBase]: 103/535 cut-off events. [2025-02-08 05:31:15,708 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 05:31:15,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 535 events. 103/535 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2304 event pairs, 40 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 688. Up to 184 conditions per place. [2025-02-08 05:31:15,713 INFO L140 encePairwiseOnDemand]: 152/163 looper letters, 31 selfloop transitions, 22 changer transitions 0/195 dead transitions. [2025-02-08 05:31:15,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 195 transitions, 544 flow [2025-02-08 05:31:15,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:15,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions. [2025-02-08 05:31:15,718 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8957055214723927 [2025-02-08 05:31:15,718 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 876 transitions. [2025-02-08 05:31:15,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 195 transitions, 544 flow [2025-02-08 05:31:15,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 195 transitions, 538 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-08 05:31:15,724 INFO L231 Difference]: Finished difference. Result has 183 places, 187 transitions, 524 flow [2025-02-08 05:31:15,726 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=183, PETRI_TRANSITIONS=187} [2025-02-08 05:31:15,726 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 20 predicate places. [2025-02-08 05:31:15,727 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 187 transitions, 524 flow [2025-02-08 05:31:15,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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 05:31:15,727 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:15,728 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 05:31:15,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:31:15,728 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 05:31:15,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:15,729 INFO L85 PathProgramCache]: Analyzing trace with hash 916020503, now seen corresponding path program 1 times [2025-02-08 05:31:15,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:15,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779326299] [2025-02-08 05:31:15,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:15,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:15,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-02-08 05:31:15,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-02-08 05:31:15,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:15,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:15,918 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 05:31:15,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:15,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779326299] [2025-02-08 05:31:15,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779326299] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:15,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43859003] [2025-02-08 05:31:15,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:15,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:15,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:15,922 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 05:31:15,924 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 05:31:15,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-02-08 05:31:16,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-02-08 05:31:16,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:16,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:16,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 05:31:16,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:31:16,054 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 05:31:16,054 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:31:16,140 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 05:31:16,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43859003] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:31:16,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:31:16,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-08 05:31:16,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636657378] [2025-02-08 05:31:16,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:31:16,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 05:31:16,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:16,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 05:31:16,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-08 05:31:16,166 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 163 [2025-02-08 05:31:16,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 187 transitions, 524 flow. Second operand has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 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 05:31:16,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:16,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 163 [2025-02-08 05:31:16,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:16,386 INFO L124 PetriNetUnfolderBase]: 35/396 cut-off events. [2025-02-08 05:31:16,387 INFO L125 PetriNetUnfolderBase]: For 57/62 co-relation queries the response was YES. [2025-02-08 05:31:16,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 396 events. 35/396 cut-off events. For 57/62 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1169 event pairs, 11 based on Foata normal form. 4/384 useless extension candidates. Maximal degree in co-relation 479. Up to 51 conditions per place. [2025-02-08 05:31:16,388 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 18 selfloop transitions, 21 changer transitions 0/205 dead transitions. [2025-02-08 05:31:16,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 205 transitions, 690 flow [2025-02-08 05:31:16,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-08 05:31:16,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-08 05:31:16,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3130 transitions. [2025-02-08 05:31:16,393 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9144025708442887 [2025-02-08 05:31:16,394 INFO L175 Difference]: Start difference. First operand has 183 places, 187 transitions, 524 flow. Second operand 21 states and 3130 transitions. [2025-02-08 05:31:16,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 205 transitions, 690 flow [2025-02-08 05:31:16,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 205 transitions, 690 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:16,398 INFO L231 Difference]: Finished difference. Result has 208 places, 200 transitions, 654 flow [2025-02-08 05:31:16,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=654, PETRI_PLACES=208, PETRI_TRANSITIONS=200} [2025-02-08 05:31:16,399 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 45 predicate places. [2025-02-08 05:31:16,399 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 200 transitions, 654 flow [2025-02-08 05:31:16,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 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 05:31:16,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:16,400 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 05:31:16,408 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 05:31:16,602 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 05:31:16,602 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 05:31:16,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:16,603 INFO L85 PathProgramCache]: Analyzing trace with hash -880493673, now seen corresponding path program 2 times [2025-02-08 05:31:16,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:16,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002685091] [2025-02-08 05:31:16,603 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:16,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:16,614 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 137 statements into 2 equivalence classes. [2025-02-08 05:31:16,626 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 137 statements. [2025-02-08 05:31:16,627 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:16,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:16,976 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 05:31:16,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:16,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002685091] [2025-02-08 05:31:16,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002685091] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:16,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:16,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:16,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146940991] [2025-02-08 05:31:16,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:16,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:16,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:16,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:16,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:17,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 163 [2025-02-08 05:31:17,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 200 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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 05:31:17,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:17,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 163 [2025-02-08 05:31:17,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:17,598 INFO L124 PetriNetUnfolderBase]: 223/895 cut-off events. [2025-02-08 05:31:17,598 INFO L125 PetriNetUnfolderBase]: For 188/194 co-relation queries the response was YES. [2025-02-08 05:31:17,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1766 conditions, 895 events. 223/895 cut-off events. For 188/194 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4699 event pairs, 82 based on Foata normal form. 5/841 useless extension candidates. Maximal degree in co-relation 1569. Up to 407 conditions per place. [2025-02-08 05:31:17,603 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 53 selfloop transitions, 39 changer transitions 5/245 dead transitions. [2025-02-08 05:31:17,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 245 transitions, 968 flow [2025-02-08 05:31:17,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:17,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 862 transitions. [2025-02-08 05:31:17,605 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8813905930470347 [2025-02-08 05:31:17,605 INFO L175 Difference]: Start difference. First operand has 208 places, 200 transitions, 654 flow. Second operand 6 states and 862 transitions. [2025-02-08 05:31:17,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 245 transitions, 968 flow [2025-02-08 05:31:17,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 245 transitions, 944 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-08 05:31:17,609 INFO L231 Difference]: Finished difference. Result has 212 places, 236 transitions, 918 flow [2025-02-08 05:31:17,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=918, PETRI_PLACES=212, PETRI_TRANSITIONS=236} [2025-02-08 05:31:17,610 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 49 predicate places. [2025-02-08 05:31:17,610 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 236 transitions, 918 flow [2025-02-08 05:31:17,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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 05:31:17,611 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:17,611 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, 1, 1, 1] [2025-02-08 05:31:17,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:31:17,612 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 05:31:17,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:17,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1992015501, now seen corresponding path program 1 times [2025-02-08 05:31:17,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:17,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956988282] [2025-02-08 05:31:17,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:17,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:17,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-08 05:31:17,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-08 05:31:17,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:17,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:17,882 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 05:31:17,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:17,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956988282] [2025-02-08 05:31:17,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956988282] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:17,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205628423] [2025-02-08 05:31:17,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:17,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:17,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:17,886 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 05:31:17,887 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 05:31:17,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-08 05:31:17,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-08 05:31:17,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:17,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:17,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 05:31:17,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:31:18,044 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 05:31:18,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:31:18,225 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 05:31:18,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205628423] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:31:18,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:31:18,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-02-08 05:31:18,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984841675] [2025-02-08 05:31:18,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:31:18,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 05:31:18,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:18,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 05:31:18,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-08 05:31:18,254 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 163 [2025-02-08 05:31:18,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 236 transitions, 918 flow. Second operand has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 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 05:31:18,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:18,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 163 [2025-02-08 05:31:18,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:18,569 INFO L124 PetriNetUnfolderBase]: 120/670 cut-off events. [2025-02-08 05:31:18,570 INFO L125 PetriNetUnfolderBase]: For 313/316 co-relation queries the response was YES. [2025-02-08 05:31:18,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 670 events. 120/670 cut-off events. For 313/316 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2943 event pairs, 15 based on Foata normal form. 3/645 useless extension candidates. Maximal degree in co-relation 1138. Up to 118 conditions per place. [2025-02-08 05:31:18,574 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 21 selfloop transitions, 30 changer transitions 0/253 dead transitions. [2025-02-08 05:31:18,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 253 transitions, 1142 flow [2025-02-08 05:31:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-08 05:31:18,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-08 05:31:18,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4464 transitions. [2025-02-08 05:31:18,581 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.912883435582822 [2025-02-08 05:31:18,581 INFO L175 Difference]: Start difference. First operand has 212 places, 236 transitions, 918 flow. Second operand 30 states and 4464 transitions. [2025-02-08 05:31:18,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 253 transitions, 1142 flow [2025-02-08 05:31:18,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 253 transitions, 1110 flow, removed 16 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:18,587 INFO L231 Difference]: Finished difference. Result has 244 places, 246 transitions, 1038 flow [2025-02-08 05:31:18,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1038, PETRI_PLACES=244, PETRI_TRANSITIONS=246} [2025-02-08 05:31:18,588 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 81 predicate places. [2025-02-08 05:31:18,588 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 246 transitions, 1038 flow [2025-02-08 05:31:18,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 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 05:31:18,590 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:18,590 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] [2025-02-08 05:31:18,597 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 05:31:18,790 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 05:31:18,791 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 05:31:18,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:18,792 INFO L85 PathProgramCache]: Analyzing trace with hash 592754587, now seen corresponding path program 2 times [2025-02-08 05:31:18,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:18,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736643054] [2025-02-08 05:31:18,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:18,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:18,805 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 157 statements into 2 equivalence classes. [2025-02-08 05:31:18,816 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 107 of 157 statements. [2025-02-08 05:31:18,817 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:18,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:19,075 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 05:31:19,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:19,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736643054] [2025-02-08 05:31:19,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736643054] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:19,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:19,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:19,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146301075] [2025-02-08 05:31:19,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:19,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:19,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:19,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:19,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:19,180 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 163 [2025-02-08 05:31:19,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 246 transitions, 1038 flow. Second operand has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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 05:31:19,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:19,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 163 [2025-02-08 05:31:19,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:19,376 INFO L124 PetriNetUnfolderBase]: 212/934 cut-off events. [2025-02-08 05:31:19,376 INFO L125 PetriNetUnfolderBase]: For 579/630 co-relation queries the response was YES. [2025-02-08 05:31:19,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 934 events. 212/934 cut-off events. For 579/630 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4932 event pairs, 40 based on Foata normal form. 3/919 useless extension candidates. Maximal degree in co-relation 1917. Up to 338 conditions per place. [2025-02-08 05:31:19,383 INFO L140 encePairwiseOnDemand]: 152/163 looper letters, 72 selfloop transitions, 40 changer transitions 0/285 dead transitions. [2025-02-08 05:31:19,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 285 transitions, 1446 flow [2025-02-08 05:31:19,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:19,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:19,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 891 transitions. [2025-02-08 05:31:19,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.911042944785276 [2025-02-08 05:31:19,387 INFO L175 Difference]: Start difference. First operand has 244 places, 246 transitions, 1038 flow. Second operand 6 states and 891 transitions. [2025-02-08 05:31:19,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 285 transitions, 1446 flow [2025-02-08 05:31:19,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 285 transitions, 1400 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-02-08 05:31:19,396 INFO L231 Difference]: Finished difference. Result has 236 places, 277 transitions, 1360 flow [2025-02-08 05:31:19,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1360, PETRI_PLACES=236, PETRI_TRANSITIONS=277} [2025-02-08 05:31:19,398 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 73 predicate places. [2025-02-08 05:31:19,398 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 277 transitions, 1360 flow [2025-02-08 05:31:19,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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 05:31:19,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:19,399 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] [2025-02-08 05:31:19,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:31:19,399 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 05:31:19,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:19,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1899320161, now seen corresponding path program 1 times [2025-02-08 05:31:19,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:19,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600840201] [2025-02-08 05:31:19,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:19,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:19,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-08 05:31:19,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-08 05:31:19,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:19,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:19,749 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 05:31:19,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:19,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600840201] [2025-02-08 05:31:19,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600840201] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:19,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:19,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:19,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72691603] [2025-02-08 05:31:19,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:19,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:19,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:19,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:19,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:19,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 163 [2025-02-08 05:31:19,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 277 transitions, 1360 flow. Second operand has 6 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 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 05:31:19,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:19,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 163 [2025-02-08 05:31:19,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:20,053 INFO L124 PetriNetUnfolderBase]: 361/1339 cut-off events. [2025-02-08 05:31:20,053 INFO L125 PetriNetUnfolderBase]: For 1472/1516 co-relation queries the response was YES. [2025-02-08 05:31:20,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3678 conditions, 1339 events. 361/1339 cut-off events. For 1472/1516 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7998 event pairs, 87 based on Foata normal form. 2/1305 useless extension candidates. Maximal degree in co-relation 3418. Up to 610 conditions per place. [2025-02-08 05:31:20,061 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 100 selfloop transitions, 64 changer transitions 10/338 dead transitions. [2025-02-08 05:31:20,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 338 transitions, 2048 flow [2025-02-08 05:31:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:20,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2025-02-08 05:31:20,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8967280163599182 [2025-02-08 05:31:20,063 INFO L175 Difference]: Start difference. First operand has 236 places, 277 transitions, 1360 flow. Second operand 6 states and 877 transitions. [2025-02-08 05:31:20,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 338 transitions, 2048 flow [2025-02-08 05:31:20,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 338 transitions, 2030 flow, removed 9 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:20,078 INFO L231 Difference]: Finished difference. Result has 246 places, 324 transitions, 1928 flow [2025-02-08 05:31:20,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1342, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1928, PETRI_PLACES=246, PETRI_TRANSITIONS=324} [2025-02-08 05:31:20,080 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 83 predicate places. [2025-02-08 05:31:20,081 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 324 transitions, 1928 flow [2025-02-08 05:31:20,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 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 05:31:20,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:20,081 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, 1, 1, 1] [2025-02-08 05:31:20,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:31:20,082 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 05:31:20,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:20,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1470133595, now seen corresponding path program 1 times [2025-02-08 05:31:20,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:20,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779869346] [2025-02-08 05:31:20,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:20,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:20,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-02-08 05:31:20,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-02-08 05:31:20,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:20,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:26,440 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 05:31:26,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:26,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779869346] [2025-02-08 05:31:26,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779869346] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:26,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:26,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-08 05:31:26,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356783387] [2025-02-08 05:31:26,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:26,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 05:31:26,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:26,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 05:31:26,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2025-02-08 05:31:28,691 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 163 [2025-02-08 05:31:28,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 324 transitions, 1928 flow. Second operand has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 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 05:31:28,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:28,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 163 [2025-02-08 05:31:28,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:29,821 INFO L124 PetriNetUnfolderBase]: 461/1620 cut-off events. [2025-02-08 05:31:29,822 INFO L125 PetriNetUnfolderBase]: For 3080/3207 co-relation queries the response was YES. [2025-02-08 05:31:29,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5227 conditions, 1620 events. 461/1620 cut-off events. For 3080/3207 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10198 event pairs, 19 based on Foata normal form. 50/1654 useless extension candidates. Maximal degree in co-relation 4950. Up to 562 conditions per place. [2025-02-08 05:31:29,834 INFO L140 encePairwiseOnDemand]: 136/163 looper letters, 190 selfloop transitions, 84 changer transitions 47/474 dead transitions. [2025-02-08 05:31:29,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 474 transitions, 3660 flow [2025-02-08 05:31:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 05:31:29,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 05:31:29,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2352 transitions. [2025-02-08 05:31:29,839 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8016359918200409 [2025-02-08 05:31:29,839 INFO L175 Difference]: Start difference. First operand has 246 places, 324 transitions, 1928 flow. Second operand 18 states and 2352 transitions. [2025-02-08 05:31:29,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 474 transitions, 3660 flow [2025-02-08 05:31:29,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 474 transitions, 3574 flow, removed 43 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:29,862 INFO L231 Difference]: Finished difference. Result has 271 places, 361 transitions, 2488 flow [2025-02-08 05:31:29,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1854, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2488, PETRI_PLACES=271, PETRI_TRANSITIONS=361} [2025-02-08 05:31:29,863 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 108 predicate places. [2025-02-08 05:31:29,863 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 361 transitions, 2488 flow [2025-02-08 05:31:29,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 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 05:31:29,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:29,864 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, 1, 1, 1] [2025-02-08 05:31:29,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 05:31:29,864 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 05:31:29,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:29,865 INFO L85 PathProgramCache]: Analyzing trace with hash -105429815, now seen corresponding path program 2 times [2025-02-08 05:31:29,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:29,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299498750] [2025-02-08 05:31:29,865 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:29,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:29,876 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 171 statements into 2 equivalence classes. [2025-02-08 05:31:29,925 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 121 of 171 statements. [2025-02-08 05:31:29,926 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:29,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:39,158 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 05:31:39,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:39,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299498750] [2025-02-08 05:31:39,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299498750] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:39,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:39,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-02-08 05:31:39,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626155413] [2025-02-08 05:31:39,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:39,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-08 05:31:39,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:39,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-08 05:31:39,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2025-02-08 05:31:42,216 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 163 [2025-02-08 05:31:42,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 361 transitions, 2488 flow. Second operand has 16 states, 16 states have (on average 116.125) internal successors, (1858), 16 states have internal predecessors, (1858), 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 05:31:42,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:42,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 163 [2025-02-08 05:31:42,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:43,941 INFO L124 PetriNetUnfolderBase]: 522/1758 cut-off events. [2025-02-08 05:31:43,941 INFO L125 PetriNetUnfolderBase]: For 4704/4764 co-relation queries the response was YES. [2025-02-08 05:31:43,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6559 conditions, 1758 events. 522/1758 cut-off events. For 4704/4764 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10897 event pairs, 31 based on Foata normal form. 31/1770 useless extension candidates. Maximal degree in co-relation 6272. Up to 704 conditions per place. [2025-02-08 05:31:43,954 INFO L140 encePairwiseOnDemand]: 133/163 looper letters, 211 selfloop transitions, 92 changer transitions 28/476 dead transitions. [2025-02-08 05:31:43,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 476 transitions, 3790 flow [2025-02-08 05:31:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-08 05:31:43,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-02-08 05:31:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2344 transitions. [2025-02-08 05:31:43,957 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7568614788505005 [2025-02-08 05:31:43,957 INFO L175 Difference]: Start difference. First operand has 271 places, 361 transitions, 2488 flow. Second operand 19 states and 2344 transitions. [2025-02-08 05:31:43,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 476 transitions, 3790 flow [2025-02-08 05:31:43,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 476 transitions, 3749 flow, removed 12 selfloop flow, removed 6 redundant places. [2025-02-08 05:31:43,989 INFO L231 Difference]: Finished difference. Result has 289 places, 368 transitions, 2721 flow [2025-02-08 05:31:43,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2721, PETRI_PLACES=289, PETRI_TRANSITIONS=368} [2025-02-08 05:31:43,990 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 126 predicate places. [2025-02-08 05:31:43,990 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 368 transitions, 2721 flow [2025-02-08 05:31:43,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 116.125) internal successors, (1858), 16 states have internal predecessors, (1858), 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 05:31:43,990 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:43,990 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, 1, 1, 1] [2025-02-08 05:31:43,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 05:31:43,991 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 05:31:43,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:43,992 INFO L85 PathProgramCache]: Analyzing trace with hash -627540329, now seen corresponding path program 3 times [2025-02-08 05:31:43,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:43,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125606180] [2025-02-08 05:31:43,992 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:31:43,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:44,002 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 171 statements into 11 equivalence classes. [2025-02-08 05:31:44,032 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 121 of 171 statements. [2025-02-08 05:31:44,033 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 05:31:44,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:56,003 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 05:31:56,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:56,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125606180] [2025-02-08 05:31:56,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125606180] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:56,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:56,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2025-02-08 05:31:56,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732074971] [2025-02-08 05:31:56,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:56,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 05:31:56,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:56,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 05:31:56,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2025-02-08 05:31:59,777 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 163 [2025-02-08 05:31:59,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 368 transitions, 2721 flow. Second operand has 19 states, 19 states have (on average 113.94736842105263) internal successors, (2165), 19 states have internal predecessors, (2165), 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 05:31:59,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:59,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 163 [2025-02-08 05:31:59,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:32:01,876 INFO L124 PetriNetUnfolderBase]: 888/2899 cut-off events. [2025-02-08 05:32:01,876 INFO L125 PetriNetUnfolderBase]: For 10776/10931 co-relation queries the response was YES. [2025-02-08 05:32:01,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11651 conditions, 2899 events. 888/2899 cut-off events. For 10776/10931 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 21722 event pairs, 90 based on Foata normal form. 68/2940 useless extension candidates. Maximal degree in co-relation 11356. Up to 606 conditions per place. [2025-02-08 05:32:01,900 INFO L140 encePairwiseOnDemand]: 134/163 looper letters, 389 selfloop transitions, 126 changer transitions 35/693 dead transitions. [2025-02-08 05:32:01,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 693 transitions, 7051 flow [2025-02-08 05:32:01,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-02-08 05:32:01,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2025-02-08 05:32:01,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3264 transitions. [2025-02-08 05:32:01,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7416496250852079 [2025-02-08 05:32:01,903 INFO L175 Difference]: Start difference. First operand has 289 places, 368 transitions, 2721 flow. Second operand 27 states and 3264 transitions. [2025-02-08 05:32:01,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 693 transitions, 7051 flow [2025-02-08 05:32:01,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 693 transitions, 6853 flow, removed 2 selfloop flow, removed 9 redundant places. [2025-02-08 05:32:01,956 INFO L231 Difference]: Finished difference. Result has 317 places, 458 transitions, 4300 flow [2025-02-08 05:32:01,956 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2644, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=4300, PETRI_PLACES=317, PETRI_TRANSITIONS=458} [2025-02-08 05:32:01,957 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 154 predicate places. [2025-02-08 05:32:01,957 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 458 transitions, 4300 flow [2025-02-08 05:32:01,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 113.94736842105263) internal successors, (2165), 19 states have internal predecessors, (2165), 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 05:32:01,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:32:01,958 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, 1, 1, 1] [2025-02-08 05:32:01,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 05:32:01,958 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 05:32:01,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:32:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1790234503, now seen corresponding path program 4 times [2025-02-08 05:32:01,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:32:01,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148545268] [2025-02-08 05:32:01,959 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 05:32:01,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:32:01,981 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 171 statements into 2 equivalence classes. [2025-02-08 05:32:02,006 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 171 of 171 statements. [2025-02-08 05:32:02,006 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 05:32:02,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:32:03,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:32:03,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148545268] [2025-02-08 05:32:03,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148545268] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:32:03,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010649249] [2025-02-08 05:32:03,119 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 05:32:03,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:32:03,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:32:03,123 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 05:32:03,124 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 05:32:03,175 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 171 statements into 2 equivalence classes. [2025-02-08 05:32:03,225 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 171 of 171 statements. [2025-02-08 05:32:03,225 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 05:32:03,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:03,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjuncts are in the unsatisfiable core [2025-02-08 05:32:03,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:32:03,496 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 05:32:03,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2025-02-08 05:32:03,575 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 05:32:03,615 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 05:32:03,770 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 05:32:03,846 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2025-02-08 05:32:03,847 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 05:32:03,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:03,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:04,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:04,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:04,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:32:04,004 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 75 treesize of output 60 [2025-02-08 05:32:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 05:32:04,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:32:04,785 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 05:32:04,929 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 05:32:04,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010649249] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 05:32:04,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:32:04,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 25] total 45 [2025-02-08 05:32:04,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353261337] [2025-02-08 05:32:04,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:32:04,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 05:32:04,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:32:04,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 05:32:04,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1873, Unknown=0, NotChecked=0, Total=2070 [2025-02-08 05:32:08,137 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 163 [2025-02-08 05:32:08,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 458 transitions, 4300 flow. Second operand has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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 05:32:08,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:32:08,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 163 [2025-02-08 05:32:08,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:32:10,192 INFO L124 PetriNetUnfolderBase]: 907/2993 cut-off events. [2025-02-08 05:32:10,192 INFO L125 PetriNetUnfolderBase]: For 15869/16078 co-relation queries the response was YES. [2025-02-08 05:32:10,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13446 conditions, 2993 events. 907/2993 cut-off events. For 15869/16078 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 23133 event pairs, 85 based on Foata normal form. 99/3056 useless extension candidates. Maximal degree in co-relation 13139. Up to 1141 conditions per place. [2025-02-08 05:32:10,217 INFO L140 encePairwiseOnDemand]: 135/163 looper letters, 216 selfloop transitions, 236 changer transitions 18/630 dead transitions. [2025-02-08 05:32:10,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 630 transitions, 7243 flow [2025-02-08 05:32:10,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 05:32:10,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-08 05:32:10,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2184 transitions. [2025-02-08 05:32:10,224 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8374233128834356 [2025-02-08 05:32:10,225 INFO L175 Difference]: Start difference. First operand has 317 places, 458 transitions, 4300 flow. Second operand 16 states and 2184 transitions. [2025-02-08 05:32:10,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 630 transitions, 7243 flow [2025-02-08 05:32:10,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 630 transitions, 7084 flow, removed 62 selfloop flow, removed 10 redundant places. [2025-02-08 05:32:10,329 INFO L231 Difference]: Finished difference. Result has 331 places, 557 transitions, 6222 flow [2025-02-08 05:32:10,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=4219, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6222, PETRI_PLACES=331, PETRI_TRANSITIONS=557} [2025-02-08 05:32:10,331 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 168 predicate places. [2025-02-08 05:32:10,331 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 557 transitions, 6222 flow [2025-02-08 05:32:10,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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 05:32:10,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:32:10,332 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, 1, 1, 1] [2025-02-08 05:32:10,338 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 05:32:10,532 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,SelfDestructingSolverStorable11 [2025-02-08 05:32:10,532 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 05:32:10,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:32:10,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1012216331, now seen corresponding path program 5 times [2025-02-08 05:32:10,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:32:10,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585323974] [2025-02-08 05:32:10,534 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 05:32:10,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:32:10,548 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 171 statements into 11 equivalence classes. [2025-02-08 05:32:10,605 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 171 of 171 statements. [2025-02-08 05:32:10,606 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 05:32:10,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:32:15,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:32:15,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585323974] [2025-02-08 05:32:15,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585323974] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:32:15,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963362701] [2025-02-08 05:32:15,545 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 05:32:15,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:32:15,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:32:15,547 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 05:32:15,548 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 05:32:15,605 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 171 statements into 11 equivalence classes. [2025-02-08 05:32:15,667 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 171 of 171 statements. [2025-02-08 05:32:15,667 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 05:32:15,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:15,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjuncts are in the unsatisfiable core [2025-02-08 05:32:15,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:32:15,727 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 05:32:15,843 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 05:32:15,884 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 05:32:15,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2025-02-08 05:32:16,002 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 05:32:16,073 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2025-02-08 05:32:16,074 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 05:32:16,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:16,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:16,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:16,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 05:32:16,218 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:32:16,218 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 75 treesize of output 60 [2025-02-08 05:32:16,231 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 05:32:16,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:32:17,218 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 05:32:17,220 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 05:32:17,222 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 05:32:17,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963362701] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 05:32:17,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:32:17,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34, 25] total 48 [2025-02-08 05:32:17,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001682742] [2025-02-08 05:32:17,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:32:17,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:32:17,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:32:17,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:32:17,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=2144, Unknown=0, NotChecked=0, Total=2352 [2025-02-08 05:32:21,357 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 163 [2025-02-08 05:32:21,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 557 transitions, 6222 flow. Second operand has 10 states, 10 states have (on average 129.2) internal successors, (1292), 10 states have internal predecessors, (1292), 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 05:32:21,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:32:21,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 163 [2025-02-08 05:32:21,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:32:24,484 INFO L124 PetriNetUnfolderBase]: 1316/4201 cut-off events. [2025-02-08 05:32:24,484 INFO L125 PetriNetUnfolderBase]: For 29668/29941 co-relation queries the response was YES. [2025-02-08 05:32:24,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20903 conditions, 4201 events. 1316/4201 cut-off events. For 29668/29941 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 34732 event pairs, 66 based on Foata normal form. 133/4301 useless extension candidates. Maximal degree in co-relation 20587. Up to 1017 conditions per place. [2025-02-08 05:32:24,512 INFO L140 encePairwiseOnDemand]: 137/163 looper letters, 345 selfloop transitions, 386 changer transitions 13/904 dead transitions. [2025-02-08 05:32:24,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 904 transitions, 12202 flow [2025-02-08 05:32:24,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 05:32:24,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 05:32:24,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2390 transitions. [2025-02-08 05:32:24,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8625045110068568 [2025-02-08 05:32:24,514 INFO L175 Difference]: Start difference. First operand has 331 places, 557 transitions, 6222 flow. Second operand 17 states and 2390 transitions. [2025-02-08 05:32:24,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 904 transitions, 12202 flow [2025-02-08 05:32:24,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 904 transitions, 11972 flow, removed 115 selfloop flow, removed 0 redundant places. [2025-02-08 05:32:24,676 INFO L231 Difference]: Finished difference. Result has 358 places, 727 transitions, 10103 flow [2025-02-08 05:32:24,677 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=6106, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10103, PETRI_PLACES=358, PETRI_TRANSITIONS=727} [2025-02-08 05:32:24,677 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 195 predicate places. [2025-02-08 05:32:24,677 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 727 transitions, 10103 flow [2025-02-08 05:32:24,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.2) internal successors, (1292), 10 states have internal predecessors, (1292), 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 05:32:24,678 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:32:24,678 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, 1, 1, 1] [2025-02-08 05:32:24,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 05:32:24,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-08 05:32:24,879 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 05:32:24,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:32:24,880 INFO L85 PathProgramCache]: Analyzing trace with hash -492216507, now seen corresponding path program 6 times [2025-02-08 05:32:24,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:32:24,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746586544] [2025-02-08 05:32:24,880 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 05:32:24,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:32:24,890 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 171 statements into 11 equivalence classes. [2025-02-08 05:32:24,906 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 120 of 171 statements. [2025-02-08 05:32:24,906 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 05:32:24,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:32:32,558 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 05:32:32,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:32:32,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746586544] [2025-02-08 05:32:32,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746586544] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:32:32,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:32:32,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-08 05:32:32,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202960981] [2025-02-08 05:32:32,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:32:32,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 05:32:32,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:32:32,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 05:32:32,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210