./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 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-divine/one_time_barrier_3t.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 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:13:52,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:13:52,578 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:13:52,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:13:52,584 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:13:52,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:13:52,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:13:52,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:13:52,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:13:52,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:13:52,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:13:52,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:13:52,601 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:13:52,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:13:52,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:13:52,601 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:13:52,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:13:52,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:13:52,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:13:52,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:13:52,602 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:13:52,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:13:52,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:13:52,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:13:52,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:13:52,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:13:52,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:13:52,603 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 -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2025-03-13 22:13:52,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:13:52,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:13:52,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:13:52,825 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:13:52,825 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:13:52,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2025-03-13 22:13:53,900 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9cc4b444/326c82c031744931a892139806c7fe17/FLAG873eae124 [2025-03-13 22:13:54,207 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:13:54,208 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2025-03-13 22:13:54,220 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9cc4b444/326c82c031744931a892139806c7fe17/FLAG873eae124 [2025-03-13 22:13:54,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9cc4b444/326c82c031744931a892139806c7fe17 [2025-03-13 22:13:54,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:13:54,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:13:54,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:13:54,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:13:54,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:13:54,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63171e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54, skipping insertion in model container [2025-03-13 22:13:54,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,495 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:13:54,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:13:54,718 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:13:54,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:13:54,787 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:13:54,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54 WrapperNode [2025-03-13 22:13:54,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:13:54,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:13:54,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:13:54,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:13:54,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,879 INFO L138 Inliner]: procedures = 174, calls = 91, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 846 [2025-03-13 22:13:54,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:13:54,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:13:54,884 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:13:54,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:13:54,889 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,922 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:13:54,934 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:13:54,934 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:13:54,934 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:13:54,940 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (1/1) ... [2025-03-13 22:13:54,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:13:54,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:13:54,967 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) [2025-03-13 22:13:54,969 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 [2025-03-13 22:13:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 22:13:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:13:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:13:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-03-13 22:13:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-03-13 22:13:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:13:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-13 22:13:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-13 22:13:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-13 22:13:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 22:13:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:13:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:13:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:13:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:13:54,989 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:13:55,133 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:13:55,134 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:13:56,034 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:13:56,035 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:13:56,035 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:13:56,085 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:13:56,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:13:56 BoogieIcfgContainer [2025-03-13 22:13:56,086 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:13:56,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:13:56,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:13:56,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:13:56,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:13:54" (1/3) ... [2025-03-13 22:13:56,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f5e431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:13:56, skipping insertion in model container [2025-03-13 22:13:56,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:54" (2/3) ... [2025-03-13 22:13:56,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f5e431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:13:56, skipping insertion in model container [2025-03-13 22:13:56,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:13:56" (3/3) ... [2025-03-13 22:13:56,096 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2025-03-13 22:13:56,108 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:13:56,110 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_3t.i that has 2 procedures, 946 locations, 1 initial locations, 16 loop locations, and 77 error locations. [2025-03-13 22:13:56,110 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:13:56,265 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-13 22:13:56,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 949 places, 1023 transitions, 2053 flow [2025-03-13 22:13:56,774 INFO L124 PetriNetUnfolderBase]: 116/1514 cut-off events. [2025-03-13 22:13:56,776 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:13:56,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 1514 events. 116/1514 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5663 event pairs, 0 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 913. Up to 4 conditions per place. [2025-03-13 22:13:56,812 INFO L82 GeneralOperation]: Start removeDead. Operand has 949 places, 1023 transitions, 2053 flow [2025-03-13 22:13:56,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 949 places, 1023 transitions, 2053 flow [2025-03-13 22:13:56,843 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:13:56,851 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;@6a3dc757, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:13:56,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2025-03-13 22:13:56,859 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:13:56,859 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2025-03-13 22:13:56,859 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:13:56,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:13:56,864 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] [2025-03-13 22:13:56,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-13 22:13:56,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:13:56,869 INFO L85 PathProgramCache]: Analyzing trace with hash -86152091, now seen corresponding path program 1 times [2025-03-13 22:13:56,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:13:56,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256629647] [2025-03-13 22:13:56,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:13:56,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:13:56,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-13 22:13:56,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-13 22:13:56,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:13:56,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:13:57,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:13:57,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:13:57,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256629647] [2025-03-13 22:13:57,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256629647] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:13:57,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:13:57,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:13:57,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409941956] [2025-03-13 22:13:57,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:13:57,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:13:57,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:13:57,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:13:57,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:13:58,906 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1023 [2025-03-13 22:13:58,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 1023 transitions, 2053 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2025-03-13 22:13:58,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:13:58,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1023 [2025-03-13 22:13:58,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:06,992 INFO L124 PetriNetUnfolderBase]: 12711/59457 cut-off events. [2025-03-13 22:14:06,993 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-13 22:14:07,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82858 conditions, 59457 events. 12711/59457 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 692149 event pairs, 11413 based on Foata normal form. 5886/58175 useless extension candidates. Maximal degree in co-relation 82164. Up to 23391 conditions per place. [2025-03-13 22:14:07,241 INFO L140 encePairwiseOnDemand]: 959/1023 looper letters, 231 selfloop transitions, 5 changer transitions 3/937 dead transitions. [2025-03-13 22:14:07,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 926 places, 937 transitions, 2353 flow [2025-03-13 22:14:07,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:14:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:14:07,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4663 transitions. [2025-03-13 22:14:07,271 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7596937113066146 [2025-03-13 22:14:07,272 INFO L175 Difference]: Start difference. First operand has 949 places, 1023 transitions, 2053 flow. Second operand 6 states and 4663 transitions. [2025-03-13 22:14:07,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 926 places, 937 transitions, 2353 flow [2025-03-13 22:14:07,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 926 places, 937 transitions, 2353 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:14:07,298 INFO L231 Difference]: Finished difference. Result has 926 places, 934 transitions, 1885 flow [2025-03-13 22:14:07,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1023, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=921, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1885, PETRI_PLACES=926, PETRI_TRANSITIONS=934} [2025-03-13 22:14:07,305 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -23 predicate places. [2025-03-13 22:14:07,306 INFO L471 AbstractCegarLoop]: Abstraction has has 926 places, 934 transitions, 1885 flow [2025-03-13 22:14:07,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2025-03-13 22:14:07,308 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:07,308 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] [2025-03-13 22:14:07,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:14:07,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-13 22:14:07,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:07,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1148854613, now seen corresponding path program 1 times [2025-03-13 22:14:07,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:07,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042111791] [2025-03-13 22:14:07,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:07,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:07,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-13 22:14:07,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-13 22:14:07,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:07,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:07,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:07,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042111791] [2025-03-13 22:14:07,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042111791] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:07,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:07,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 22:14:07,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874468818] [2025-03-13 22:14:07,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:07,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:14:07,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:07,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:14:07,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:14:07,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 937 out of 1023 [2025-03-13 22:14:07,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 926 places, 934 transitions, 1885 flow. Second operand has 3 states, 3 states have (on average 938.3333333333334) internal successors, (2815), 3 states have internal predecessors, (2815), 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) [2025-03-13 22:14:07,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:07,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 937 of 1023 [2025-03-13 22:14:07,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:08,254 INFO L124 PetriNetUnfolderBase]: 247/4798 cut-off events. [2025-03-13 22:14:08,254 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-13 22:14:08,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5121 conditions, 4798 events. 247/4798 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36266 event pairs, 110 based on Foata normal form. 1/4139 useless extension candidates. Maximal degree in co-relation 5032. Up to 306 conditions per place. [2025-03-13 22:14:08,298 INFO L140 encePairwiseOnDemand]: 1020/1023 looper letters, 27 selfloop transitions, 2 changer transitions 0/935 dead transitions. [2025-03-13 22:14:08,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 935 transitions, 1945 flow [2025-03-13 22:14:08,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:14:08,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:14:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2841 transitions. [2025-03-13 22:14:08,304 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9257086999022482 [2025-03-13 22:14:08,305 INFO L175 Difference]: Start difference. First operand has 926 places, 934 transitions, 1885 flow. Second operand 3 states and 2841 transitions. [2025-03-13 22:14:08,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 935 transitions, 1945 flow [2025-03-13 22:14:08,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 920 places, 935 transitions, 1935 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-13 22:14:08,320 INFO L231 Difference]: Finished difference. Result has 921 places, 935 transitions, 1887 flow [2025-03-13 22:14:08,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1023, PETRI_DIFFERENCE_MINUEND_FLOW=1875, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1887, PETRI_PLACES=921, PETRI_TRANSITIONS=935} [2025-03-13 22:14:08,322 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -28 predicate places. [2025-03-13 22:14:08,322 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 935 transitions, 1887 flow [2025-03-13 22:14:08,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 938.3333333333334) internal successors, (2815), 3 states have internal predecessors, (2815), 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) [2025-03-13 22:14:08,323 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:08,324 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] [2025-03-13 22:14:08,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:14:08,324 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-13 22:14:08,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:08,324 INFO L85 PathProgramCache]: Analyzing trace with hash -591303062, now seen corresponding path program 1 times [2025-03-13 22:14:08,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:08,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304410936] [2025-03-13 22:14:08,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:08,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:08,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-13 22:14:08,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-13 22:14:08,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:08,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:08,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:08,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304410936] [2025-03-13 22:14:08,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304410936] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:08,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:08,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:14:08,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636863193] [2025-03-13 22:14:08,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:08,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:14:08,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:08,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:14:08,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:14:09,764 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1023 [2025-03-13 22:14:09,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 935 transitions, 1887 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2025-03-13 22:14:09,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:09,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1023 [2025-03-13 22:14:09,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:17,559 INFO L124 PetriNetUnfolderBase]: 12711/59481 cut-off events. [2025-03-13 22:14:17,560 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-13 22:14:17,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82897 conditions, 59481 events. 12711/59481 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 691716 event pairs, 11413 based on Foata normal form. 0/52315 useless extension candidates. Maximal degree in co-relation 82813. Up to 23394 conditions per place. [2025-03-13 22:14:17,789 INFO L140 encePairwiseOnDemand]: 1017/1023 looper letters, 232 selfloop transitions, 5 changer transitions 0/934 dead transitions. [2025-03-13 22:14:17,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 934 transitions, 2359 flow [2025-03-13 22:14:17,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:14:17,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:14:17,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2025-03-13 22:14:17,798 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7502443792766373 [2025-03-13 22:14:17,798 INFO L175 Difference]: Start difference. First operand has 921 places, 935 transitions, 1887 flow. Second operand 6 states and 4605 transitions. [2025-03-13 22:14:17,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 934 transitions, 2359 flow [2025-03-13 22:14:17,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 924 places, 934 transitions, 2357 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:14:17,973 INFO L231 Difference]: Finished difference. Result has 924 places, 934 transitions, 1893 flow [2025-03-13 22:14:17,974 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1023, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=919, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=929, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1893, PETRI_PLACES=924, PETRI_TRANSITIONS=934} [2025-03-13 22:14:17,975 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -25 predicate places. [2025-03-13 22:14:17,975 INFO L471 AbstractCegarLoop]: Abstraction has has 924 places, 934 transitions, 1893 flow [2025-03-13 22:14:17,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2025-03-13 22:14:17,978 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:17,978 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] [2025-03-13 22:14:17,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:14:17,978 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-13 22:14:17,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:17,979 INFO L85 PathProgramCache]: Analyzing trace with hash 804992803, now seen corresponding path program 1 times [2025-03-13 22:14:17,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:17,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737878851] [2025-03-13 22:14:17,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:17,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:17,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-13 22:14:18,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-13 22:14:18,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:18,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:18,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:18,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:18,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737878851] [2025-03-13 22:14:18,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737878851] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:18,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:18,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:14:18,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274899472] [2025-03-13 22:14:18,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:18,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:14:18,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:18,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:14:18,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:14:19,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1023 [2025-03-13 22:14:19,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 924 places, 934 transitions, 1893 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2025-03-13 22:14:19,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:19,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1023 [2025-03-13 22:14:19,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:27,047 INFO L124 PetriNetUnfolderBase]: 12711/59479 cut-off events. [2025-03-13 22:14:27,047 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2025-03-13 22:14:27,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82904 conditions, 59479 events. 12711/59479 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 691953 event pairs, 11413 based on Foata normal form. 0/52315 useless extension candidates. Maximal degree in co-relation 82806. Up to 23394 conditions per place. [2025-03-13 22:14:27,248 INFO L140 encePairwiseOnDemand]: 1017/1023 looper letters, 232 selfloop transitions, 5 changer transitions 0/933 dead transitions. [2025-03-13 22:14:27,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 933 transitions, 2365 flow [2025-03-13 22:14:27,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:14:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:14:27,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2025-03-13 22:14:27,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7502443792766373 [2025-03-13 22:14:27,255 INFO L175 Difference]: Start difference. First operand has 924 places, 934 transitions, 1893 flow. Second operand 6 states and 4605 transitions. [2025-03-13 22:14:27,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 928 places, 933 transitions, 2365 flow [2025-03-13 22:14:27,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 923 places, 933 transitions, 2355 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-13 22:14:27,267 INFO L231 Difference]: Finished difference. Result has 923 places, 933 transitions, 1891 flow [2025-03-13 22:14:27,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1023, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1891, PETRI_PLACES=923, PETRI_TRANSITIONS=933} [2025-03-13 22:14:27,270 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -26 predicate places. [2025-03-13 22:14:27,270 INFO L471 AbstractCegarLoop]: Abstraction has has 923 places, 933 transitions, 1891 flow [2025-03-13 22:14:27,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2025-03-13 22:14:27,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:27,272 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] [2025-03-13 22:14:27,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:14:27,272 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-13 22:14:27,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:27,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1628583672, now seen corresponding path program 1 times [2025-03-13 22:14:27,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:27,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865219306] [2025-03-13 22:14:27,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:27,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:27,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-13 22:14:27,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-13 22:14:27,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:27,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:27,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:27,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865219306] [2025-03-13 22:14:27,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865219306] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-13 22:14:27,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504206425] [2025-03-13 22:14:27,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:27,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:14:27,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:14:27,361 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) [2025-03-13 22:14:27,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-13 22:14:27,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-13 22:14:27,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-13 22:14:27,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:27,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:27,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-13 22:14:27,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:14:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:27,539 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-13 22:14:27,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:27,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504206425] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-13 22:14:27,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-13 22:14:27,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-03-13 22:14:27,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623871020] [2025-03-13 22:14:27,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-13 22:14:27,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:14:27,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:27,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:14:27,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:14:27,687 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 936 out of 1023 [2025-03-13 22:14:27,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 923 places, 933 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 938.1666666666666) internal successors, (5629), 6 states have internal predecessors, (5629), 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) [2025-03-13 22:14:27,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:27,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 936 of 1023 [2025-03-13 22:14:27,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:28,586 INFO L124 PetriNetUnfolderBase]: 247/4824 cut-off events. [2025-03-13 22:14:28,586 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-03-13 22:14:28,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5163 conditions, 4824 events. 247/4824 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36098 event pairs, 110 based on Foata normal form. 2/4170 useless extension candidates. Maximal degree in co-relation 5015. Up to 305 conditions per place. [2025-03-13 22:14:28,619 INFO L140 encePairwiseOnDemand]: 1019/1023 looper letters, 29 selfloop transitions, 5 changer transitions 0/937 dead transitions. [2025-03-13 22:14:28,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 927 places, 937 transitions, 1969 flow [2025-03-13 22:14:28,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-13 22:14:28,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-13 22:14:28,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4716 transitions. [2025-03-13 22:14:28,627 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9219941348973607 [2025-03-13 22:14:28,627 INFO L175 Difference]: Start difference. First operand has 923 places, 933 transitions, 1891 flow. Second operand 5 states and 4716 transitions. [2025-03-13 22:14:28,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 927 places, 937 transitions, 1969 flow [2025-03-13 22:14:28,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 922 places, 937 transitions, 1959 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-13 22:14:28,639 INFO L231 Difference]: Finished difference. Result has 925 places, 935 transitions, 1911 flow [2025-03-13 22:14:28,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1023, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=929, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1911, PETRI_PLACES=925, PETRI_TRANSITIONS=935} [2025-03-13 22:14:28,641 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -24 predicate places. [2025-03-13 22:14:28,641 INFO L471 AbstractCegarLoop]: Abstraction has has 925 places, 935 transitions, 1911 flow [2025-03-13 22:14:28,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 938.1666666666666) internal successors, (5629), 6 states have internal predecessors, (5629), 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) [2025-03-13 22:14:28,644 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:28,644 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-13 22:14:28,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-13 22:14:28,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:14:28,845 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-13 22:14:28,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:28,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1948378434, now seen corresponding path program 2 times [2025-03-13 22:14:28,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:28,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612785223] [2025-03-13 22:14:28,846 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:14:28,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:28,878 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 135 statements into 2 equivalence classes. [2025-03-13 22:14:28,881 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 51 of 135 statements. [2025-03-13 22:14:28,881 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:14:28,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:29,093 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2025-03-13 22:14:29,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:29,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612785223] [2025-03-13 22:14:29,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612785223] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:29,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:29,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:14:29,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522313127] [2025-03-13 22:14:29,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:29,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:14:29,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:29,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:14:29,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:14:29,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1023 [2025-03-13 22:14:29,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 925 places, 935 transitions, 1911 flow. Second operand has 6 states, 6 states have (on average 731.3333333333334) internal successors, (4388), 6 states have internal predecessors, (4388), 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) [2025-03-13 22:14:29,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:29,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1023 [2025-03-13 22:14:29,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:38,812 INFO L124 PetriNetUnfolderBase]: 12501/59060 cut-off events. [2025-03-13 22:14:38,813 INFO L125 PetriNetUnfolderBase]: For 18/21 co-relation queries the response was YES. [2025-03-13 22:14:38,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82102 conditions, 59060 events. 12501/59060 cut-off events. For 18/21 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 687920 event pairs, 11211 based on Foata normal form. 0/51956 useless extension candidates. Maximal degree in co-relation 81922. Up to 23009 conditions per place. [2025-03-13 22:14:39,034 INFO L140 encePairwiseOnDemand]: 1017/1023 looper letters, 231 selfloop transitions, 5 changer transitions 0/934 dead transitions. [2025-03-13 22:14:39,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 929 places, 934 transitions, 2381 flow [2025-03-13 22:14:39,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:14:39,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:14:39,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2025-03-13 22:14:39,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7502443792766373 [2025-03-13 22:14:39,039 INFO L175 Difference]: Start difference. First operand has 925 places, 935 transitions, 1911 flow. Second operand 6 states and 4605 transitions. [2025-03-13 22:14:39,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 929 places, 934 transitions, 2381 flow [2025-03-13 22:14:39,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 934 transitions, 2375 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-13 22:14:39,051 INFO L231 Difference]: Finished difference. Result has 928 places, 934 transitions, 1913 flow [2025-03-13 22:14:39,052 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1023, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=923, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=929, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1913, PETRI_PLACES=928, PETRI_TRANSITIONS=934} [2025-03-13 22:14:39,052 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -21 predicate places. [2025-03-13 22:14:39,052 INFO L471 AbstractCegarLoop]: Abstraction has has 928 places, 934 transitions, 1913 flow [2025-03-13 22:14:39,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 731.3333333333334) internal successors, (4388), 6 states have internal predecessors, (4388), 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) [2025-03-13 22:14:39,054 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:39,054 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-13 22:14:39,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 22:14:39,055 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-03-13 22:14:39,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash 100003639, now seen corresponding path program 1 times [2025-03-13 22:14:39,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:39,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320013913] [2025-03-13 22:14:39,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:39,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:39,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-03-13 22:14:39,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-03-13 22:14:39,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:39,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat