./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 e2fb8bed 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-?-e2fb8be-m [2025-03-08 21:55:36,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 21:55:36,462 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 21:55:36,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 21:55:36,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 21:55:36,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 21:55:36,488 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 21:55:36,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 21:55:36,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 21:55:36,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 21:55:36,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 21:55:36,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 21:55:36,491 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 21:55:36,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 21:55:36,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 21:55:36,492 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 21:55:36,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 21:55:36,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 21:55:36,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 21:55:36,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 21:55:36,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 21:55:36,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 21:55:36,492 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 21:55:36,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 21:55:36,493 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 21:55:36,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 21:55:36,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 21:55:36,493 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 21:55:36,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 21:55:36,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 21:55:36,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 21:55:36,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:55:36,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 21:55:36,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 21:55:36,493 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 21:55:36,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 21:55:36,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 21:55:36,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 21:55:36,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 21:55:36,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 21:55:36,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 21:55:36,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 21:55:36,494 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 [2025-03-08 21:55:36,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 21:55:36,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 21:55:36,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 21:55:36,699 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 21:55:36,699 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 21:55:36,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2025-03-08 21:55:37,807 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43e0f64dc/e3a6d9c6b10d4f2391f7d4586345b05b/FLAG238454767 [2025-03-08 21:55:38,044 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 21:55:38,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2025-03-08 21:55:38,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43e0f64dc/e3a6d9c6b10d4f2391f7d4586345b05b/FLAG238454767 [2025-03-08 21:55:38,376 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43e0f64dc/e3a6d9c6b10d4f2391f7d4586345b05b [2025-03-08 21:55:38,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 21:55:38,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 21:55:38,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 21:55:38,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 21:55:38,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 21:55:38,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3800c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38, skipping insertion in model container [2025-03-08 21:55:38,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,411 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 21:55:38,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:55:38,737 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 21:55:38,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:55:38,822 INFO L204 MainTranslator]: Completed translation [2025-03-08 21:55:38,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38 WrapperNode [2025-03-08 21:55:38,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 21:55:38,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 21:55:38,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 21:55:38,825 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 21:55:38,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,876 INFO L138 Inliner]: procedures = 174, calls = 91, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 846 [2025-03-08 21:55:38,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 21:55:38,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 21:55:38,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 21:55:38,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 21:55:38,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,926 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,933 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 21:55:38,953 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 21:55:38,953 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 21:55:38,953 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 21:55:38,954 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (1/1) ... [2025-03-08 21:55:38,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:55:38,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:55:38,981 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) [2025-03-08 21:55:38,985 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 [2025-03-08 21:55:39,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 21:55:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 21:55:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 21:55:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-03-08 21:55:39,004 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-03-08 21:55:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 21:55:39,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-08 21:55:39,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 21:55:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-08 21:55:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 21:55:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 21:55:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 21:55:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 21:55:39,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 21:55:39,007 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 21:55:39,152 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 21:55:39,154 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 21:55:40,047 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 21:55:40,047 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 21:55:40,095 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 21:55:40,097 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 21:55:40,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:55:40 BoogieIcfgContainer [2025-03-08 21:55:40,097 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 21:55:40,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 21:55:40,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 21:55:40,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 21:55:40,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:55:38" (1/3) ... [2025-03-08 21:55:40,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b73b027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:55:40, skipping insertion in model container [2025-03-08 21:55:40,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:38" (2/3) ... [2025-03-08 21:55:40,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b73b027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:55:40, skipping insertion in model container [2025-03-08 21:55:40,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:55:40" (3/3) ... [2025-03-08 21:55:40,107 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2025-03-08 21:55:40,118 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 21:55:40,119 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. [2025-03-08 21:55:40,119 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 21:55:40,281 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-08 21:55:40,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 949 places, 1023 transitions, 2053 flow [2025-03-08 21:55:40,803 INFO L124 PetriNetUnfolderBase]: 116/1514 cut-off events. [2025-03-08 21:55:40,807 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 21:55:40,835 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. [2025-03-08 21:55:40,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 949 places, 1023 transitions, 2053 flow [2025-03-08 21:55:40,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 949 places, 1023 transitions, 2053 flow [2025-03-08 21:55:40,860 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 21:55:40,867 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;@3185aba4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 21:55:40,869 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2025-03-08 21:55:40,875 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 21:55:40,876 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2025-03-08 21:55:40,876 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:55:40,876 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:55:40,877 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] [2025-03-08 21:55:40,878 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)] === [2025-03-08 21:55:40,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:55:40,882 INFO L85 PathProgramCache]: Analyzing trace with hash -86152091, now seen corresponding path program 1 times [2025-03-08 21:55:40,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:55:40,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36952910] [2025-03-08 21:55:40,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:55:40,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:55:40,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-08 21:55:41,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-08 21:55:41,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:55:41,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:55:41,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:55:41,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:55:41,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36952910] [2025-03-08 21:55:41,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36952910] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:55:41,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:55:41,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:55:41,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293922684] [2025-03-08 21:55:41,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:55:41,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:55:41,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:55:41,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:55:41,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:55:42,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1023 [2025-03-08 21:55:42,887 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) [2025-03-08 21:55:42,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:55:42,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1023 [2025-03-08 21:55:42,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:55:51,111 INFO L124 PetriNetUnfolderBase]: 12711/59457 cut-off events. [2025-03-08 21:55:51,111 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-08 21:55:51,181 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. [2025-03-08 21:55:51,318 INFO L140 encePairwiseOnDemand]: 959/1023 looper letters, 231 selfloop transitions, 5 changer transitions 3/937 dead transitions. [2025-03-08 21:55:51,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 926 places, 937 transitions, 2353 flow [2025-03-08 21:55:51,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:55:51,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:55:51,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4663 transitions. [2025-03-08 21:55:51,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7596937113066146 [2025-03-08 21:55:51,343 INFO L175 Difference]: Start difference. First operand has 949 places, 1023 transitions, 2053 flow. Second operand 6 states and 4663 transitions. [2025-03-08 21:55:51,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 926 places, 937 transitions, 2353 flow [2025-03-08 21:55:51,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 926 places, 937 transitions, 2353 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 21:55:51,367 INFO L231 Difference]: Finished difference. Result has 926 places, 934 transitions, 1885 flow [2025-03-08 21:55:51,370 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} [2025-03-08 21:55:51,373 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -23 predicate places. [2025-03-08 21:55:51,375 INFO L471 AbstractCegarLoop]: Abstraction has has 926 places, 934 transitions, 1885 flow [2025-03-08 21:55:51,378 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) [2025-03-08 21:55:51,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:55:51,378 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] [2025-03-08 21:55:51,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 21:55:51,378 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)] === [2025-03-08 21:55:51,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:55:51,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1148854613, now seen corresponding path program 1 times [2025-03-08 21:55:51,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:55:51,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341231944] [2025-03-08 21:55:51,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:55:51,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:55:51,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-08 21:55:51,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-08 21:55:51,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:55:51,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:55:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:55:51,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:55:51,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341231944] [2025-03-08 21:55:51,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341231944] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:55:51,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:55:51,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 21:55:51,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945674963] [2025-03-08 21:55:51,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:55:51,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:55:51,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:55:51,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:55:51,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:55:51,477 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 937 out of 1023 [2025-03-08 21:55:51,480 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) [2025-03-08 21:55:51,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:55:51,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 937 of 1023 [2025-03-08 21:55:51,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:55:52,155 INFO L124 PetriNetUnfolderBase]: 247/4798 cut-off events. [2025-03-08 21:55:52,155 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-08 21:55:52,169 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. [2025-03-08 21:55:52,177 INFO L140 encePairwiseOnDemand]: 1020/1023 looper letters, 27 selfloop transitions, 2 changer transitions 0/935 dead transitions. [2025-03-08 21:55:52,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 935 transitions, 1945 flow [2025-03-08 21:55:52,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:55:52,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:55:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2841 transitions. [2025-03-08 21:55:52,181 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9257086999022482 [2025-03-08 21:55:52,182 INFO L175 Difference]: Start difference. First operand has 926 places, 934 transitions, 1885 flow. Second operand 3 states and 2841 transitions. [2025-03-08 21:55:52,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 935 transitions, 1945 flow [2025-03-08 21:55:52,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 920 places, 935 transitions, 1935 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 21:55:52,193 INFO L231 Difference]: Finished difference. Result has 921 places, 935 transitions, 1887 flow [2025-03-08 21:55:52,194 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} [2025-03-08 21:55:52,195 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -28 predicate places. [2025-03-08 21:55:52,195 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 935 transitions, 1887 flow [2025-03-08 21:55:52,196 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) [2025-03-08 21:55:52,196 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:55:52,196 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] [2025-03-08 21:55:52,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 21:55:52,196 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)] === [2025-03-08 21:55:52,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:55:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash -591303062, now seen corresponding path program 1 times [2025-03-08 21:55:52,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:55:52,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815607043] [2025-03-08 21:55:52,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:55:52,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:55:52,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-08 21:55:52,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-08 21:55:52,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:55:52,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:55:52,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:55:52,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:55:52,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815607043] [2025-03-08 21:55:52,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815607043] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:55:52,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:55:52,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:55:52,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168883472] [2025-03-08 21:55:52,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:55:52,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:55:52,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:55:52,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:55:52,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:55:53,576 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1023 [2025-03-08 21:55:53,580 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) [2025-03-08 21:55:53,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:55:53,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1023 [2025-03-08 21:55:53,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:56:01,348 INFO L124 PetriNetUnfolderBase]: 12711/59481 cut-off events. [2025-03-08 21:56:01,348 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-08 21:56:01,441 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. [2025-03-08 21:56:01,574 INFO L140 encePairwiseOnDemand]: 1017/1023 looper letters, 232 selfloop transitions, 5 changer transitions 0/934 dead transitions. [2025-03-08 21:56:01,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 934 transitions, 2359 flow [2025-03-08 21:56:01,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:56:01,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:56:01,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2025-03-08 21:56:01,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7502443792766373 [2025-03-08 21:56:01,584 INFO L175 Difference]: Start difference. First operand has 921 places, 935 transitions, 1887 flow. Second operand 6 states and 4605 transitions. [2025-03-08 21:56:01,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 934 transitions, 2359 flow [2025-03-08 21:56:01,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 924 places, 934 transitions, 2357 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:56:01,603 INFO L231 Difference]: Finished difference. Result has 924 places, 934 transitions, 1893 flow [2025-03-08 21:56:01,605 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} [2025-03-08 21:56:01,607 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -25 predicate places. [2025-03-08 21:56:01,607 INFO L471 AbstractCegarLoop]: Abstraction has has 924 places, 934 transitions, 1893 flow [2025-03-08 21:56:01,609 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) [2025-03-08 21:56:01,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:56:01,609 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] [2025-03-08 21:56:01,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 21:56:01,609 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)] === [2025-03-08 21:56:01,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:56:01,610 INFO L85 PathProgramCache]: Analyzing trace with hash 804992803, now seen corresponding path program 1 times [2025-03-08 21:56:01,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:56:01,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807993955] [2025-03-08 21:56:01,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:56:01,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:56:01,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-08 21:56:01,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-08 21:56:01,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:56:01,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:56:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:56:01,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:56:01,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807993955] [2025-03-08 21:56:01,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807993955] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:56:01,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:56:01,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:56:01,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029181543] [2025-03-08 21:56:01,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:56:01,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:56:01,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:56:01,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:56:01,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:56:03,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1023 [2025-03-08 21:56:03,056 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) [2025-03-08 21:56:03,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:56:03,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1023 [2025-03-08 21:56:03,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:56:11,075 INFO L124 PetriNetUnfolderBase]: 12711/59479 cut-off events. [2025-03-08 21:56:11,075 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2025-03-08 21:56:11,173 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. [2025-03-08 21:56:11,309 INFO L140 encePairwiseOnDemand]: 1017/1023 looper letters, 232 selfloop transitions, 5 changer transitions 0/933 dead transitions. [2025-03-08 21:56:11,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 933 transitions, 2365 flow [2025-03-08 21:56:11,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:56:11,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:56:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2025-03-08 21:56:11,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7502443792766373 [2025-03-08 21:56:11,317 INFO L175 Difference]: Start difference. First operand has 924 places, 934 transitions, 1893 flow. Second operand 6 states and 4605 transitions. [2025-03-08 21:56:11,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 928 places, 933 transitions, 2365 flow [2025-03-08 21:56:11,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 923 places, 933 transitions, 2355 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 21:56:11,330 INFO L231 Difference]: Finished difference. Result has 923 places, 933 transitions, 1891 flow [2025-03-08 21:56:11,331 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} [2025-03-08 21:56:11,333 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -26 predicate places. [2025-03-08 21:56:11,333 INFO L471 AbstractCegarLoop]: Abstraction has has 923 places, 933 transitions, 1891 flow [2025-03-08 21:56:11,335 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) [2025-03-08 21:56:11,335 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:56:11,335 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] [2025-03-08 21:56:11,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 21:56:11,335 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)] === [2025-03-08 21:56:11,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:56:11,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1628583672, now seen corresponding path program 1 times [2025-03-08 21:56:11,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:56:11,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659514423] [2025-03-08 21:56:11,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:56:11,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:56:11,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-08 21:56:11,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-08 21:56:11,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:56:11,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:56:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:56:11,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:56:11,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659514423] [2025-03-08 21:56:11,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659514423] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:56:11,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124310076] [2025-03-08 21:56:11,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:56:11,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:56:11,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:56:11,438 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) [2025-03-08 21:56:11,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 21:56:11,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-08 21:56:11,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-08 21:56:11,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:56:11,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:56:11,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 21:56:11,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:56:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:56:11,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 21:56:11,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:56:11,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124310076] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 21:56:11,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 21:56:11,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-03-08 21:56:11,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445931878] [2025-03-08 21:56:11,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 21:56:11,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:56:11,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:56:11,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:56:11,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:56:11,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 936 out of 1023 [2025-03-08 21:56:11,915 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) [2025-03-08 21:56:11,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:56:11,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 936 of 1023 [2025-03-08 21:56:11,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:56:12,552 INFO L124 PetriNetUnfolderBase]: 247/4824 cut-off events. [2025-03-08 21:56:12,552 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-03-08 21:56:12,579 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. [2025-03-08 21:56:12,592 INFO L140 encePairwiseOnDemand]: 1019/1023 looper letters, 29 selfloop transitions, 5 changer transitions 0/937 dead transitions. [2025-03-08 21:56:12,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 927 places, 937 transitions, 1969 flow [2025-03-08 21:56:12,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 21:56:12,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-08 21:56:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4716 transitions. [2025-03-08 21:56:12,598 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9219941348973607 [2025-03-08 21:56:12,598 INFO L175 Difference]: Start difference. First operand has 923 places, 933 transitions, 1891 flow. Second operand 5 states and 4716 transitions. [2025-03-08 21:56:12,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 927 places, 937 transitions, 1969 flow [2025-03-08 21:56:12,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 922 places, 937 transitions, 1959 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 21:56:12,608 INFO L231 Difference]: Finished difference. Result has 925 places, 935 transitions, 1911 flow [2025-03-08 21:56:12,609 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} [2025-03-08 21:56:12,610 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -24 predicate places. [2025-03-08 21:56:12,610 INFO L471 AbstractCegarLoop]: Abstraction has has 925 places, 935 transitions, 1911 flow [2025-03-08 21:56:12,613 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) [2025-03-08 21:56:12,613 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:56:12,613 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] [2025-03-08 21:56:12,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 21:56:12,818 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 [2025-03-08 21:56:12,818 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)] === [2025-03-08 21:56:12,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:56:12,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1948378434, now seen corresponding path program 2 times [2025-03-08 21:56:12,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:56:12,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422940134] [2025-03-08 21:56:12,819 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:56:12,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:56:12,844 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 135 statements into 2 equivalence classes. [2025-03-08 21:56:12,847 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 51 of 135 statements. [2025-03-08 21:56:12,847 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:56:12,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:56:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2025-03-08 21:56:13,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:56:13,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422940134] [2025-03-08 21:56:13,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422940134] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:56:13,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:56:13,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:56:13,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433720348] [2025-03-08 21:56:13,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:56:13,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:56:13,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:56:13,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:56:13,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:56:13,738 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1023 [2025-03-08 21:56:13,741 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) [2025-03-08 21:56:13,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:56:13,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1023 [2025-03-08 21:56:13,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:56:22,660 INFO L124 PetriNetUnfolderBase]: 12501/59060 cut-off events. [2025-03-08 21:56:22,661 INFO L125 PetriNetUnfolderBase]: For 18/21 co-relation queries the response was YES. [2025-03-08 21:56:22,767 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. [2025-03-08 21:56:22,873 INFO L140 encePairwiseOnDemand]: 1017/1023 looper letters, 231 selfloop transitions, 5 changer transitions 0/934 dead transitions. [2025-03-08 21:56:22,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 929 places, 934 transitions, 2381 flow [2025-03-08 21:56:22,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:56:22,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:56:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2025-03-08 21:56:22,878 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7502443792766373 [2025-03-08 21:56:22,878 INFO L175 Difference]: Start difference. First operand has 925 places, 935 transitions, 1911 flow. Second operand 6 states and 4605 transitions. [2025-03-08 21:56:22,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 929 places, 934 transitions, 2381 flow [2025-03-08 21:56:22,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 934 transitions, 2375 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-08 21:56:22,889 INFO L231 Difference]: Finished difference. Result has 928 places, 934 transitions, 1913 flow [2025-03-08 21:56:22,890 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} [2025-03-08 21:56:22,891 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -21 predicate places. [2025-03-08 21:56:22,891 INFO L471 AbstractCegarLoop]: Abstraction has has 928 places, 934 transitions, 1913 flow [2025-03-08 21:56:22,893 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) [2025-03-08 21:56:22,893 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:56:22,893 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] [2025-03-08 21:56:22,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 21:56:22,894 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)] === [2025-03-08 21:56:22,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:56:22,894 INFO L85 PathProgramCache]: Analyzing trace with hash 100003639, now seen corresponding path program 1 times [2025-03-08 21:56:22,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:56:22,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927899094] [2025-03-08 21:56:22,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:56:22,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:56:22,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-03-08 21:56:22,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-03-08 21:56:22,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:56:22,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:56:23,321 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2025-03-08 21:56:23,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:56:23,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927899094] [2025-03-08 21:56:23,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927899094] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:56:23,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:56:23,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:56:23,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462956392] [2025-03-08 21:56:23,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:56:23,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:56:23,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:56:23,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:56:23,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:56:24,122 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1023 [2025-03-08 21:56:24,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 928 places, 934 transitions, 1913 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) [2025-03-08 21:56:24,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:56:24,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1023 [2025-03-08 21:56:24,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand