./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread/indexer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/indexer.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 10:41:52,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 10:41:52,101 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 10:41:52,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 10:41:52,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 10:41:52,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 10:41:52,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 10:41:52,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 10:41:52,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 10:41:52,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 10:41:52,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 10:41:52,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 10:41:52,132 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 10:41:52,133 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 10:41:52,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 10:41:52,134 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 10:41:52,134 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 10:41:52,134 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 10:41:52,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 10:41:52,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 10:41:52,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:41:52,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 10:41:52,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 10:41:52,134 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 10:41:52,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 10:41:52,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 10:41:52,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 10:41:52,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 10:41:52,135 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 10:41:52,135 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 10:41:52,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 10:41:52,135 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/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 -> f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c [2025-03-17 10:41:52,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 10:41:52,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 10:41:52,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 10:41:52,373 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 10:41:52,374 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 10:41:52,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/indexer.i [2025-03-17 10:41:53,622 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33685ec74/11cd1c01f0a24de5bd0469c73e7c4465/FLAG245c2d7cf [2025-03-17 10:41:53,967 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 10:41:53,970 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i [2025-03-17 10:41:53,983 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33685ec74/11cd1c01f0a24de5bd0469c73e7c4465/FLAG245c2d7cf [2025-03-17 10:41:54,203 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33685ec74/11cd1c01f0a24de5bd0469c73e7c4465 [2025-03-17 10:41:54,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 10:41:54,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 10:41:54,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 10:41:54,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 10:41:54,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 10:41:54,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbc53c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54, skipping insertion in model container [2025-03-17 10:41:54,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 10:41:54,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:41:54,641 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 10:41:54,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:41:54,799 INFO L204 MainTranslator]: Completed translation [2025-03-17 10:41:54,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54 WrapperNode [2025-03-17 10:41:54,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 10:41:54,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 10:41:54,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 10:41:54,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 10:41:54,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,866 INFO L138 Inliner]: procedures = 270, calls = 803, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 916 [2025-03-17 10:41:54,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 10:41:54,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 10:41:54,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 10:41:54,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 10:41:54,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,919 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 10:41:54,955 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 10:41:54,955 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 10:41:54,956 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 10:41:54,956 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (1/1) ... [2025-03-17 10:41:54,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:41:54,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:41:54,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 10:41:54,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 10:41:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 10:41:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 10:41:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 10:41:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 10:41:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread_routine [2025-03-17 10:41:55,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_routine [2025-03-17 10:41:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 10:41:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 10:41:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 10:41:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 10:41:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 10:41:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 10:41:55,006 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 10:41:55,117 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 10:41:55,118 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 10:41:56,146 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 10:41:56,146 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 10:41:56,181 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 10:41:56,182 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 10:41:56,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:41:56 BoogieIcfgContainer [2025-03-17 10:41:56,182 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 10:41:56,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 10:41:56,184 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 10:41:56,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 10:41:56,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 10:41:54" (1/3) ... [2025-03-17 10:41:56,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70481829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:41:56, skipping insertion in model container [2025-03-17 10:41:56,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:54" (2/3) ... [2025-03-17 10:41:56,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70481829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:41:56, skipping insertion in model container [2025-03-17 10:41:56,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:41:56" (3/3) ... [2025-03-17 10:41:56,193 INFO L128 eAbstractionObserver]: Analyzing ICFG indexer.i [2025-03-17 10:41:56,204 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 10:41:56,205 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG indexer.i that has 2 procedures, 926 locations, 1 initial locations, 6 loop locations, and 6 error locations. [2025-03-17 10:41:56,206 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 10:41:56,322 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-17 10:41:56,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 929 places, 936 transitions, 1879 flow [2025-03-17 10:41:56,676 INFO L124 PetriNetUnfolderBase]: 11/978 cut-off events. [2025-03-17 10:41:56,679 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 10:41:56,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 978 events. 11/978 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 394 event pairs, 0 based on Foata normal form. 0/955 useless extension candidates. Maximal degree in co-relation 847. Up to 4 conditions per place. [2025-03-17 10:41:56,686 INFO L82 GeneralOperation]: Start removeDead. Operand has 929 places, 936 transitions, 1879 flow [2025-03-17 10:41:56,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 929 places, 936 transitions, 1879 flow [2025-03-17 10:41:56,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:41:56,724 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;@2dfa5f7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:41:56,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-03-17 10:41:56,860 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:41:56,861 INFO L124 PetriNetUnfolderBase]: 2/829 cut-off events. [2025-03-17 10:41:56,861 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:41:56,861 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:41:56,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:41:56,863 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:41:56,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:41:56,871 INFO L85 PathProgramCache]: Analyzing trace with hash 841259783, now seen corresponding path program 1 times [2025-03-17 10:41:56,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:41:56,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136469785] [2025-03-17 10:41:56,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:41:56,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:41:57,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 808 statements into 1 equivalence classes. [2025-03-17 10:41:57,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 808 of 808 statements. [2025-03-17 10:41:57,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:41:57,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:41:57,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:41:57,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:41:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136469785] [2025-03-17 10:41:57,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136469785] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:41:57,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:41:57,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 10:41:57,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368990248] [2025-03-17 10:41:57,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:41:57,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:41:57,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:41:57,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:41:57,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:41:58,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 912 out of 936 [2025-03-17 10:41:58,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 929 places, 936 transitions, 1879 flow. Second operand has 3 states, 3 states have (on average 913.6666666666666) internal successors, (2741), 3 states have internal predecessors, (2741), 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) [2025-03-17 10:41:58,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:41:58,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 912 of 936 [2025-03-17 10:41:58,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:41:58,220 INFO L124 PetriNetUnfolderBase]: 11/1037 cut-off events. [2025-03-17 10:41:58,221 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2025-03-17 10:41:58,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 1037 events. 11/1037 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 707 event pairs, 2 based on Foata normal form. 15/1029 useless extension candidates. Maximal degree in co-relation 836. Up to 22 conditions per place. [2025-03-17 10:41:58,225 INFO L140 encePairwiseOnDemand]: 920/936 looper letters, 11 selfloop transitions, 6 changer transitions 13/934 dead transitions. [2025-03-17 10:41:58,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 929 places, 934 transitions, 1921 flow [2025-03-17 10:41:58,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:41:58,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:41:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2771 transitions. [2025-03-17 10:41:58,246 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9868233618233618 [2025-03-17 10:41:58,248 INFO L175 Difference]: Start difference. First operand has 929 places, 936 transitions, 1879 flow. Second operand 3 states and 2771 transitions. [2025-03-17 10:41:58,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 929 places, 934 transitions, 1921 flow [2025-03-17 10:41:58,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 929 places, 934 transitions, 1921 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:41:58,273 INFO L231 Difference]: Finished difference. Result has 930 places, 919 transitions, 1869 flow [2025-03-17 10:41:58,276 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=936, PETRI_DIFFERENCE_MINUEND_FLOW=1867, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=930, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1869, PETRI_PLACES=930, PETRI_TRANSITIONS=919} [2025-03-17 10:41:58,280 INFO L279 CegarLoopForPetriNet]: 929 programPoint places, 1 predicate places. [2025-03-17 10:41:58,283 INFO L471 AbstractCegarLoop]: Abstraction has has 930 places, 919 transitions, 1869 flow [2025-03-17 10:41:58,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 913.6666666666666) internal successors, (2741), 3 states have internal predecessors, (2741), 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) [2025-03-17 10:41:58,284 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:41:58,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:41:58,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 10:41:58,285 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:41:58,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:41:58,288 INFO L85 PathProgramCache]: Analyzing trace with hash 274229292, now seen corresponding path program 1 times [2025-03-17 10:41:58,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:41:58,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790423552] [2025-03-17 10:41:58,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:41:58,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:41:58,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 813 statements into 1 equivalence classes. [2025-03-17 10:41:58,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 813 of 813 statements. [2025-03-17 10:41:58,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:41:58,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:41:59,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:41:59,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:41:59,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790423552] [2025-03-17 10:41:59,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790423552] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 10:41:59,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968283078] [2025-03-17 10:41:59,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:41:59,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 10:41:59,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:41:59,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 10:41:59,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 10:41:59,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 813 statements into 1 equivalence classes. [2025-03-17 10:41:59,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 813 of 813 statements. [2025-03-17 10:41:59,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:41:59,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:41:59,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 1656 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 10:41:59,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 10:41:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:41:59,539 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 10:41:59,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:41:59,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968283078] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 10:41:59,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 10:41:59,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-17 10:41:59,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864313007] [2025-03-17 10:41:59,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 10:41:59,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 10:41:59,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:41:59,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 10:41:59,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-17 10:41:59,883 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 906 out of 936 [2025-03-17 10:41:59,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 919 transitions, 1869 flow. Second operand has 10 states, 10 states have (on average 908.0) internal successors, (9080), 10 states have internal predecessors, (9080), 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) [2025-03-17 10:41:59,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:41:59,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 906 of 936 [2025-03-17 10:41:59,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:00,176 INFO L124 PetriNetUnfolderBase]: 23/1123 cut-off events. [2025-03-17 10:42:00,176 INFO L125 PetriNetUnfolderBase]: For 23/29 co-relation queries the response was YES. [2025-03-17 10:42:00,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1209 conditions, 1123 events. 23/1123 cut-off events. For 23/29 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1100 event pairs, 3 based on Foata normal form. 4/1092 useless extension candidates. Maximal degree in co-relation 862. Up to 21 conditions per place. [2025-03-17 10:42:00,180 INFO L140 encePairwiseOnDemand]: 924/936 looper letters, 19 selfloop transitions, 15 changer transitions 0/933 dead transitions. [2025-03-17 10:42:00,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 933 transitions, 1967 flow [2025-03-17 10:42:00,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 10:42:00,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 10:42:00,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9096 transitions. [2025-03-17 10:42:00,193 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9717948717948718 [2025-03-17 10:42:00,193 INFO L175 Difference]: Start difference. First operand has 930 places, 919 transitions, 1869 flow. Second operand 10 states and 9096 transitions. [2025-03-17 10:42:00,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 928 places, 933 transitions, 1967 flow [2025-03-17 10:42:00,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 927 places, 933 transitions, 1961 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 10:42:00,205 INFO L231 Difference]: Finished difference. Result has 930 places, 927 transitions, 1939 flow [2025-03-17 10:42:00,206 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=936, PETRI_DIFFERENCE_MINUEND_FLOW=1863, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=907, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1939, PETRI_PLACES=930, PETRI_TRANSITIONS=927} [2025-03-17 10:42:00,207 INFO L279 CegarLoopForPetriNet]: 929 programPoint places, 1 predicate places. [2025-03-17 10:42:00,207 INFO L471 AbstractCegarLoop]: Abstraction has has 930 places, 927 transitions, 1939 flow [2025-03-17 10:42:00,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 908.0) internal successors, (9080), 10 states have internal predecessors, (9080), 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) [2025-03-17 10:42:00,212 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:00,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:00,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 10:42:00,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 10:42:00,414 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:42:00,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash -851088116, now seen corresponding path program 2 times [2025-03-17 10:42:00,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:00,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433714655] [2025-03-17 10:42:00,417 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 10:42:00,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:00,457 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 823 statements into 2 equivalence classes. [2025-03-17 10:42:00,492 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 808 of 823 statements. [2025-03-17 10:42:00,492 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 10:42:00,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:02,700 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-17 10:42:02,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:02,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433714655] [2025-03-17 10:42:02,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433714655] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:02,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:02,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:02,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795619264] [2025-03-17 10:42:02,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:02,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:02,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:02,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:02,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:02,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 895 out of 936 [2025-03-17 10:42:02,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 927 transitions, 1939 flow. Second operand has 6 states, 6 states have (on average 896.3333333333334) internal successors, (5378), 6 states have internal predecessors, (5378), 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) [2025-03-17 10:42:02,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:02,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 895 of 936 [2025-03-17 10:42:02,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:03,336 INFO L124 PetriNetUnfolderBase]: 338/2285 cut-off events. [2025-03-17 10:42:03,336 INFO L125 PetriNetUnfolderBase]: For 21/24 co-relation queries the response was YES. [2025-03-17 10:42:03,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2972 conditions, 2285 events. 338/2285 cut-off events. For 21/24 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 9990 event pairs, 142 based on Foata normal form. 0/2137 useless extension candidates. Maximal degree in co-relation 2123. Up to 531 conditions per place. [2025-03-17 10:42:03,345 INFO L140 encePairwiseOnDemand]: 917/936 looper letters, 41 selfloop transitions, 54 changer transitions 0/988 dead transitions. [2025-03-17 10:42:03,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 988 transitions, 2251 flow [2025-03-17 10:42:03,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:03,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:03,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5466 transitions. [2025-03-17 10:42:03,354 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9732905982905983 [2025-03-17 10:42:03,354 INFO L175 Difference]: Start difference. First operand has 930 places, 927 transitions, 1939 flow. Second operand 6 states and 5466 transitions. [2025-03-17 10:42:03,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 988 transitions, 2251 flow [2025-03-17 10:42:03,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 988 transitions, 2241 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-17 10:42:03,372 INFO L231 Difference]: Finished difference. Result has 939 places, 980 transitions, 2287 flow [2025-03-17 10:42:03,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=936, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=929, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=927, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=909, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2287, PETRI_PLACES=939, PETRI_TRANSITIONS=980} [2025-03-17 10:42:03,374 INFO L279 CegarLoopForPetriNet]: 929 programPoint places, 10 predicate places. [2025-03-17 10:42:03,375 INFO L471 AbstractCegarLoop]: Abstraction has has 939 places, 980 transitions, 2287 flow [2025-03-17 10:42:03,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 896.3333333333334) internal successors, (5378), 6 states have internal predecessors, (5378), 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) [2025-03-17 10:42:03,377 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:03,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:03,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 10:42:03,378 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:42:03,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:03,381 INFO L85 PathProgramCache]: Analyzing trace with hash 790684730, now seen corresponding path program 1 times [2025-03-17 10:42:03,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:03,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278417174] [2025-03-17 10:42:03,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:03,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:03,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 833 statements into 1 equivalence classes. [2025-03-17 10:42:03,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 833 of 833 statements. [2025-03-17 10:42:03,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:03,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:03,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:03,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278417174] [2025-03-17 10:42:03,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278417174] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 10:42:03,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442033725] [2025-03-17 10:42:03,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:03,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 10:42:03,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:42:03,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 10:42:03,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 10:42:03,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 833 statements into 1 equivalence classes. [2025-03-17 10:42:04,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 833 of 833 statements. [2025-03-17 10:42:04,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:04,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:04,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 1710 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 10:42:04,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 10:42:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:04,198 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 10:42:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:04,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442033725] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 10:42:04,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 10:42:04,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-17 10:42:04,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107286169] [2025-03-17 10:42:04,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 10:42:04,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 10:42:04,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:04,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 10:42:04,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-17 10:42:04,561 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 906 out of 936 [2025-03-17 10:42:04,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 939 places, 980 transitions, 2287 flow. Second operand has 18 states, 18 states have (on average 908.0) internal successors, (16344), 18 states have internal predecessors, (16344), 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) [2025-03-17 10:42:04,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:04,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 906 of 936 [2025-03-17 10:42:04,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:04,974 INFO L124 PetriNetUnfolderBase]: 159/1619 cut-off events. [2025-03-17 10:42:04,974 INFO L125 PetriNetUnfolderBase]: For 117/122 co-relation queries the response was YES. [2025-03-17 10:42:04,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2248 conditions, 1619 events. 159/1619 cut-off events. For 117/122 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4397 event pairs, 16 based on Foata normal form. 6/1557 useless extension candidates. Maximal degree in co-relation 1322. Up to 156 conditions per place. [2025-03-17 10:42:04,984 INFO L140 encePairwiseOnDemand]: 924/936 looper letters, 23 selfloop transitions, 27 changer transitions 0/1002 dead transitions. [2025-03-17 10:42:04,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 960 places, 1002 transitions, 2483 flow [2025-03-17 10:42:04,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 10:42:04,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-17 10:42:05,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 19986 transitions. [2025-03-17 10:42:05,012 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9705710955710956 [2025-03-17 10:42:05,013 INFO L175 Difference]: Start difference. First operand has 939 places, 980 transitions, 2287 flow. Second operand 22 states and 19986 transitions. [2025-03-17 10:42:05,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 960 places, 1002 transitions, 2483 flow [2025-03-17 10:42:05,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 1002 transitions, 2483 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:42:05,031 INFO L231 Difference]: Finished difference. Result has 965 places, 993 transitions, 2435 flow [2025-03-17 10:42:05,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=936, PETRI_DIFFERENCE_MINUEND_FLOW=2287, PETRI_DIFFERENCE_MINUEND_PLACES=939, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=980, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=963, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2435, PETRI_PLACES=965, PETRI_TRANSITIONS=993} [2025-03-17 10:42:05,033 INFO L279 CegarLoopForPetriNet]: 929 programPoint places, 36 predicate places. [2025-03-17 10:42:05,033 INFO L471 AbstractCegarLoop]: Abstraction has has 965 places, 993 transitions, 2435 flow [2025-03-17 10:42:05,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 908.0) internal successors, (16344), 18 states have internal predecessors, (16344), 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) [2025-03-17 10:42:05,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:05,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:05,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 10:42:05,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-17 10:42:05,245 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:42:05,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1405618694, now seen corresponding path program 2 times [2025-03-17 10:42:05,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:05,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886223356] [2025-03-17 10:42:05,248 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 10:42:05,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:05,281 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 853 statements into 2 equivalence classes. [2025-03-17 10:42:05,303 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 818 of 853 statements. [2025-03-17 10:42:05,303 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 10:42:05,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:06,619 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 10:42:06,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:06,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886223356] [2025-03-17 10:42:06,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886223356] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:06,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:06,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:06,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527707397] [2025-03-17 10:42:06,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:06,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:06,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:06,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:06,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:06,860 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 886 out of 936 [2025-03-17 10:42:06,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 965 places, 993 transitions, 2435 flow. Second operand has 6 states, 6 states have (on average 888.6666666666666) internal successors, (5332), 6 states have internal predecessors, (5332), 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) [2025-03-17 10:42:06,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:06,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 886 of 936 [2025-03-17 10:42:06,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:07,628 INFO L124 PetriNetUnfolderBase]: 471/2878 cut-off events. [2025-03-17 10:42:07,628 INFO L125 PetriNetUnfolderBase]: For 556/586 co-relation queries the response was YES. [2025-03-17 10:42:07,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4663 conditions, 2878 events. 471/2878 cut-off events. For 556/586 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 14800 event pairs, 147 based on Foata normal form. 0/2692 useless extension candidates. Maximal degree in co-relation 3717. Up to 749 conditions per place. [2025-03-17 10:42:07,642 INFO L140 encePairwiseOnDemand]: 917/936 looper letters, 106 selfloop transitions, 54 changer transitions 0/1054 dead transitions. [2025-03-17 10:42:07,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 970 places, 1054 transitions, 2973 flow [2025-03-17 10:42:07,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:07,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:07,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5420 transitions. [2025-03-17 10:42:07,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9650997150997151 [2025-03-17 10:42:07,649 INFO L175 Difference]: Start difference. First operand has 965 places, 993 transitions, 2435 flow. Second operand 6 states and 5420 transitions. [2025-03-17 10:42:07,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 970 places, 1054 transitions, 2973 flow [2025-03-17 10:42:07,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 964 places, 1054 transitions, 2945 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-17 10:42:07,665 INFO L231 Difference]: Finished difference. Result has 969 places, 1046 transitions, 2861 flow [2025-03-17 10:42:07,666 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=936, PETRI_DIFFERENCE_MINUEND_FLOW=2407, PETRI_DIFFERENCE_MINUEND_PLACES=959, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=975, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2861, PETRI_PLACES=969, PETRI_TRANSITIONS=1046} [2025-03-17 10:42:07,666 INFO L279 CegarLoopForPetriNet]: 929 programPoint places, 40 predicate places. [2025-03-17 10:42:07,666 INFO L471 AbstractCegarLoop]: Abstraction has has 969 places, 1046 transitions, 2861 flow [2025-03-17 10:42:07,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 888.6666666666666) internal successors, (5332), 6 states have internal predecessors, (5332), 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) [2025-03-17 10:42:07,668 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:07,668 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:07,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 10:42:07,669 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread_routineErr2ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:42:07,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:07,672 INFO L85 PathProgramCache]: Analyzing trace with hash 2076806962, now seen corresponding path program 1 times [2025-03-17 10:42:07,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:07,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161764242] [2025-03-17 10:42:07,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:07,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:07,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 865 statements into 1 equivalence classes. [2025-03-17 10:42:07,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 865 of 865 statements. [2025-03-17 10:42:07,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:07,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:08,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:08,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161764242] [2025-03-17 10:42:08,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161764242] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 10:42:08,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312345444] [2025-03-17 10:42:08,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:08,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 10:42:08,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:42:08,492 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 10:42:08,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 10:42:08,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 865 statements into 1 equivalence classes. [2025-03-17 10:42:08,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 865 of 865 statements. [2025-03-17 10:42:08,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:08,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:08,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 10:42:08,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 10:42:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:08,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 10:42:09,068 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:09,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312345444] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 10:42:09,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 10:42:09,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-03-17 10:42:09,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439876171] [2025-03-17 10:42:09,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 10:42:09,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-17 10:42:09,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:09,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-17 10:42:09,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 10:42:09,464 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 906 out of 936 [2025-03-17 10:42:09,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 969 places, 1046 transitions, 2861 flow. Second operand has 34 states, 34 states have (on average 908.0294117647059) internal successors, (30873), 34 states have internal predecessors, (30873), 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) [2025-03-17 10:42:09,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:09,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 906 of 936 [2025-03-17 10:42:09,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:10,434 INFO L124 PetriNetUnfolderBase]: 281/2216 cut-off events. [2025-03-17 10:42:10,435 INFO L125 PetriNetUnfolderBase]: For 616/631 co-relation queries the response was YES. [2025-03-17 10:42:10,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3630 conditions, 2216 events. 281/2216 cut-off events. For 616/631 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 8763 event pairs, 16 based on Foata normal form. 10/2121 useless extension candidates. Maximal degree in co-relation 2509. Up to 283 conditions per place. [2025-03-17 10:42:10,450 INFO L140 encePairwiseOnDemand]: 924/936 looper letters, 31 selfloop transitions, 51 changer transitions 0/1087 dead transitions. [2025-03-17 10:42:10,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1014 places, 1087 transitions, 3305 flow [2025-03-17 10:42:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-17 10:42:10,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2025-03-17 10:42:10,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 41766 transitions. [2025-03-17 10:42:10,505 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9700390189520625 [2025-03-17 10:42:10,505 INFO L175 Difference]: Start difference. First operand has 969 places, 1046 transitions, 2861 flow. Second operand 46 states and 41766 transitions. [2025-03-17 10:42:10,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1014 places, 1087 transitions, 3305 flow [2025-03-17 10:42:10,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1014 places, 1087 transitions, 3209 flow, removed 48 selfloop flow, removed 0 redundant places. [2025-03-17 10:42:10,523 INFO L231 Difference]: Finished difference. Result has 1023 places, 1071 transitions, 3085 flow [2025-03-17 10:42:10,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=936, PETRI_DIFFERENCE_MINUEND_FLOW=2765, PETRI_DIFFERENCE_MINUEND_PLACES=969, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1046, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1017, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=3085, PETRI_PLACES=1023, PETRI_TRANSITIONS=1071} [2025-03-17 10:42:10,525 INFO L279 CegarLoopForPetriNet]: 929 programPoint places, 94 predicate places. [2025-03-17 10:42:10,525 INFO L471 AbstractCegarLoop]: Abstraction has has 1023 places, 1071 transitions, 3085 flow [2025-03-17 10:42:10,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 908.0294117647059) internal successors, (30873), 34 states have internal predecessors, (30873), 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) [2025-03-17 10:42:10,532 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:10,532 INFO L206 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:10,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 10:42:10,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 10:42:10,733 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread_routineErr2ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:42:10,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:10,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1401901746, now seen corresponding path program 2 times [2025-03-17 10:42:10,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:10,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756783921] [2025-03-17 10:42:10,736 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 10:42:10,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:10,773 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 905 statements into 2 equivalence classes. [2025-03-17 10:42:10,788 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 830 of 905 statements. [2025-03-17 10:42:10,788 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 10:42:10,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2025-03-17 10:42:11,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:11,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756783921] [2025-03-17 10:42:11,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756783921] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:11,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:11,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:11,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47669766] [2025-03-17 10:42:11,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:11,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:11,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:11,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:11,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:12,052 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 908 out of 936 [2025-03-17 10:42:12,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1023 places, 1071 transitions, 3085 flow. Second operand has 6 states, 6 states have (on average 910.5) internal successors, (5463), 6 states have internal predecessors, (5463), 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) [2025-03-17 10:42:12,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:12,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 908 of 936 [2025-03-17 10:42:12,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:12,883 INFO L124 PetriNetUnfolderBase]: 461/3159 cut-off events. [2025-03-17 10:42:12,883 INFO L125 PetriNetUnfolderBase]: For 937/966 co-relation queries the response was YES. [2025-03-17 10:42:12,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5654 conditions, 3159 events. 461/3159 cut-off events. For 937/966 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 17169 event pairs, 22 based on Foata normal form. 4/2990 useless extension candidates. Maximal degree in co-relation 4516. Up to 567 conditions per place. [2025-03-17 10:42:12,901 INFO L140 encePairwiseOnDemand]: 921/936 looper letters, 87 selfloop transitions, 60 changer transitions 0/1125 dead transitions. [2025-03-17 10:42:12,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1028 places, 1125 transitions, 3642 flow [2025-03-17 10:42:12,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:12,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5512 transitions. [2025-03-17 10:42:12,907 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9814814814814815 [2025-03-17 10:42:12,907 INFO L175 Difference]: Start difference. First operand has 1023 places, 1071 transitions, 3085 flow. Second operand 6 states and 5512 transitions. [2025-03-17 10:42:12,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1028 places, 1125 transitions, 3642 flow [2025-03-17 10:42:12,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1010 places, 1125 transitions, 3582 flow, removed 10 selfloop flow, removed 18 redundant places. [2025-03-17 10:42:12,927 INFO L231 Difference]: Finished difference. Result has 1015 places, 1122 transitions, 3575 flow [2025-03-17 10:42:12,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=936, PETRI_DIFFERENCE_MINUEND_FLOW=3025, PETRI_DIFFERENCE_MINUEND_PLACES=1005, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1071, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1035, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3575, PETRI_PLACES=1015, PETRI_TRANSITIONS=1122} [2025-03-17 10:42:12,929 INFO L279 CegarLoopForPetriNet]: 929 programPoint places, 86 predicate places. [2025-03-17 10:42:12,929 INFO L471 AbstractCegarLoop]: Abstraction has has 1015 places, 1122 transitions, 3575 flow [2025-03-17 10:42:12,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 910.5) internal successors, (5463), 6 states have internal predecessors, (5463), 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) [2025-03-17 10:42:12,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:12,930 INFO L206 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:12,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 10:42:12,931 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:42:12,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:12,933 INFO L85 PathProgramCache]: Analyzing trace with hash 73291220, now seen corresponding path program 1 times [2025-03-17 10:42:12,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:12,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047607845] [2025-03-17 10:42:12,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:12,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:12,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 909 statements into 1 equivalence classes. [2025-03-17 10:42:12,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 909 of 909 statements. [2025-03-17 10:42:12,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:12,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:13,243 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2025-03-17 10:42:13,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:13,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047607845] [2025-03-17 10:42:13,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047607845] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:13,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:13,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:13,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591080820] [2025-03-17 10:42:13,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:13,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 10:42:13,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:13,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 10:42:13,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 10:42:13,334 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 910 out of 936 [2025-03-17 10:42:13,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1015 places, 1122 transitions, 3575 flow. Second operand has 5 states, 5 states have (on average 912.4) internal successors, (4562), 5 states have internal predecessors, (4562), 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) [2025-03-17 10:42:13,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:13,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 910 of 936 [2025-03-17 10:42:13,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:13,919 INFO L124 PetriNetUnfolderBase]: 417/3277 cut-off events. [2025-03-17 10:42:13,920 INFO L125 PetriNetUnfolderBase]: For 1186/1211 co-relation queries the response was YES. [2025-03-17 10:42:13,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5717 conditions, 3277 events. 417/3277 cut-off events. For 1186/1211 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 18920 event pairs, 13 based on Foata normal form. 8/3111 useless extension candidates. Maximal degree in co-relation 4583. Up to 345 conditions per place. [2025-03-17 10:42:13,939 INFO L140 encePairwiseOnDemand]: 929/936 looper letters, 26 selfloop transitions, 6 changer transitions 0/1112 dead transitions. [2025-03-17 10:42:13,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1006 places, 1112 transitions, 3587 flow [2025-03-17 10:42:13,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:13,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:13,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5480 transitions. [2025-03-17 10:42:13,942 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9757834757834758 [2025-03-17 10:42:13,942 INFO L175 Difference]: Start difference. First operand has 1015 places, 1122 transitions, 3575 flow. Second operand 6 states and 5480 transitions. [2025-03-17 10:42:13,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1006 places, 1112 transitions, 3587 flow [2025-03-17 10:42:13,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1006 places, 1112 transitions, 3551 flow, removed 18 selfloop flow, removed 0 redundant places. [2025-03-17 10:42:13,962 INFO L231 Difference]: Finished difference. Result has 1006 places, 1106 transitions, 3487 flow [2025-03-17 10:42:13,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=936, PETRI_DIFFERENCE_MINUEND_FLOW=3475, PETRI_DIFFERENCE_MINUEND_PLACES=1001, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3487, PETRI_PLACES=1006, PETRI_TRANSITIONS=1106} [2025-03-17 10:42:13,964 INFO L279 CegarLoopForPetriNet]: 929 programPoint places, 77 predicate places. [2025-03-17 10:42:13,964 INFO L471 AbstractCegarLoop]: Abstraction has has 1006 places, 1106 transitions, 3487 flow [2025-03-17 10:42:13,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 912.4) internal successors, (4562), 5 states have internal predecessors, (4562), 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) [2025-03-17 10:42:13,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:13,965 INFO L206 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:13,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 10:42:13,966 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:42:13,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:13,968 INFO L85 PathProgramCache]: Analyzing trace with hash 346916902, now seen corresponding path program 1 times [2025-03-17 10:42:13,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:13,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596284402] [2025-03-17 10:42:13,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:13,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:13,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 915 statements into 1 equivalence classes. [2025-03-17 10:42:14,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 915 of 915 statements. [2025-03-17 10:42:14,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:14,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:15,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:15,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596284402] [2025-03-17 10:42:15,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596284402] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 10:42:15,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292440261] [2025-03-17 10:42:15,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:15,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 10:42:15,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:42:15,533 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 10:42:15,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 10:42:15,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 915 statements into 1 equivalence classes. [2025-03-17 10:42:15,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 915 of 915 statements. [2025-03-17 10:42:15,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:15,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:15,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-17 10:42:15,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 10:42:15,884 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:15,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 10:42:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:16,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292440261] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 10:42:16,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 10:42:16,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2025-03-17 10:42:16,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866379426] [2025-03-17 10:42:16,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 10:42:16,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2025-03-17 10:42:16,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:16,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2025-03-17 10:42:16,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2025-03-17 10:42:17,242 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 906 out of 936 [2025-03-17 10:42:17,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1006 places, 1106 transitions, 3487 flow. Second operand has 66 states, 66 states have (on average 908.030303030303) internal successors, (59930), 66 states have internal predecessors, (59930), 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) [2025-03-17 10:42:17,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:17,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 906 of 936 [2025-03-17 10:42:17,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:19,181 INFO L124 PetriNetUnfolderBase]: 413/3349 cut-off events. [2025-03-17 10:42:19,181 INFO L125 PetriNetUnfolderBase]: For 3204/3229 co-relation queries the response was YES. [2025-03-17 10:42:19,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6144 conditions, 3349 events. 413/3349 cut-off events. For 3204/3229 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 18879 event pairs, 13 based on Foata normal form. 19/3194 useless extension candidates. Maximal degree in co-relation 4561. Up to 345 conditions per place. [2025-03-17 10:42:19,200 INFO L140 encePairwiseOnDemand]: 927/936 looper letters, 44 selfloop transitions, 96 changer transitions 0/1186 dead transitions. [2025-03-17 10:42:19,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1098 places, 1186 transitions, 4531 flow [2025-03-17 10:42:19,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2025-03-17 10:42:19,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2025-03-17 10:42:19,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 84414 transitions. [2025-03-17 10:42:19,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9697408326440584 [2025-03-17 10:42:19,233 INFO L175 Difference]: Start difference. First operand has 1006 places, 1106 transitions, 3487 flow. Second operand 93 states and 84414 transitions. [2025-03-17 10:42:19,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1098 places, 1186 transitions, 4531 flow [2025-03-17 10:42:19,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1094 places, 1186 transitions, 4520 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 10:42:19,257 INFO L231 Difference]: Finished difference. Result has 1111 places, 1155 transitions, 4175 flow [2025-03-17 10:42:19,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=936, PETRI_DIFFERENCE_MINUEND_FLOW=3476, PETRI_DIFFERENCE_MINUEND_PLACES=1002, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1056, PETRI_DIFFERENCE_SUBTRAHEND_STATES=93, PETRI_FLOW=4175, PETRI_PLACES=1111, PETRI_TRANSITIONS=1155} [2025-03-17 10:42:19,259 INFO L279 CegarLoopForPetriNet]: 929 programPoint places, 182 predicate places. [2025-03-17 10:42:19,259 INFO L471 AbstractCegarLoop]: Abstraction has has 1111 places, 1155 transitions, 4175 flow [2025-03-17 10:42:19,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 908.030303030303) internal successors, (59930), 66 states have internal predecessors, (59930), 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) [2025-03-17 10:42:19,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:19,266 INFO L206 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:19,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 10:42:19,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 10:42:19,467 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:42:19,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:19,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1654665434, now seen corresponding path program 2 times [2025-03-17 10:42:19,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:19,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113324594] [2025-03-17 10:42:19,471 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 10:42:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:19,502 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 995 statements into 2 equivalence classes. [2025-03-17 10:42:19,586 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 995 of 995 statements. [2025-03-17 10:42:19,586 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 10:42:19,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:23,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:23,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:23,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113324594] [2025-03-17 10:42:23,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113324594] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 10:42:23,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122090800] [2025-03-17 10:42:23,440 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 10:42:23,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 10:42:23,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:42:23,443 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 10:42:23,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 10:42:23,526 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 995 statements into 2 equivalence classes. [2025-03-17 10:42:23,690 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 995 of 995 statements. [2025-03-17 10:42:23,691 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 10:42:23,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:23,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 2049 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-03-17 10:42:23,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 10:42:23,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:23,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 10:42:26,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:26,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122090800] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 10:42:26,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 10:42:26,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2025-03-17 10:42:26,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57977832] [2025-03-17 10:42:26,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 10:42:26,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2025-03-17 10:42:26,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:26,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2025-03-17 10:42:26,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2025-03-17 10:42:27,798 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 906 out of 936 [2025-03-17 10:42:27,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1111 places, 1155 transitions, 4175 flow. Second operand has 130 states, 130 states have (on average 908.0153846153846) internal successors, (118042), 130 states have internal predecessors, (118042), 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) [2025-03-17 10:42:27,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:27,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 906 of 936 [2025-03-17 10:42:27,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:33,257 INFO L124 PetriNetUnfolderBase]: 413/3509 cut-off events. [2025-03-17 10:42:33,257 INFO L125 PetriNetUnfolderBase]: For 18013/18038 co-relation queries the response was YES. [2025-03-17 10:42:33,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7305 conditions, 3509 events. 413/3509 cut-off events. For 18013/18038 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 18835 event pairs, 13 based on Foata normal form. 35/3370 useless extension candidates. Maximal degree in co-relation 4571. Up to 345 conditions per place. [2025-03-17 10:42:33,280 INFO L140 encePairwiseOnDemand]: 927/936 looper letters, 76 selfloop transitions, 192 changer transitions 0/1314 dead transitions. [2025-03-17 10:42:33,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1299 places, 1314 transitions, 6739 flow [2025-03-17 10:42:33,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2025-03-17 10:42:33,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2025-03-17 10:42:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 171534 transitions. [2025-03-17 10:42:33,350 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9696445529778863 [2025-03-17 10:42:33,351 INFO L175 Difference]: Start difference. First operand has 1111 places, 1155 transitions, 4175 flow. Second operand 189 states and 171534 transitions. [2025-03-17 10:42:33,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1299 places, 1314 transitions, 6739 flow [2025-03-17 10:42:33,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1257 places, 1314 transitions, 6552 flow, removed 50 selfloop flow, removed 42 redundant places. [2025-03-17 10:42:33,541 INFO L231 Difference]: Finished difference. Result has 1290 places, 1252 transitions, 5619 flow [2025-03-17 10:42:33,543 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=936, PETRI_DIFFERENCE_MINUEND_FLOW=4052, PETRI_DIFFERENCE_MINUEND_PLACES=1069, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1057, PETRI_DIFFERENCE_SUBTRAHEND_STATES=189, PETRI_FLOW=5619, PETRI_PLACES=1290, PETRI_TRANSITIONS=1252} [2025-03-17 10:42:33,544 INFO L279 CegarLoopForPetriNet]: 929 programPoint places, 361 predicate places. [2025-03-17 10:42:33,544 INFO L471 AbstractCegarLoop]: Abstraction has has 1290 places, 1252 transitions, 5619 flow [2025-03-17 10:42:33,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 908.0153846153846) internal successors, (118042), 130 states have internal predecessors, (118042), 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) [2025-03-17 10:42:33,557 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:33,558 INFO L206 CegarLoopForPetriNet]: trace histogram [63, 63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:33,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 10:42:33,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-17 10:42:33,758 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_routineErr2ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-17 10:42:33,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:33,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1839900224, now seen corresponding path program 3 times [2025-03-17 10:42:33,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:33,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339682893] [2025-03-17 10:42:33,762 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 10:42:33,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:33,802 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 1155 statements into 64 equivalence classes. [2025-03-17 10:42:34,798 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) and asserted 1155 of 1155 statements. [2025-03-17 10:42:34,799 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2025-03-17 10:42:34,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:46,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:46,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339682893] [2025-03-17 10:42:46,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339682893] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 10:42:46,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578599467] [2025-03-17 10:42:46,493 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 10:42:46,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 10:42:46,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:42:46,495 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 10:42:46,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 10:42:46,592 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 1155 statements into 64 equivalence classes.