./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 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:29:06,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:29:06,273 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:29:06,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:29:06,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:29:06,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:29:06,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:29:06,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:29:06,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:29:06,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:29:06,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:29:06,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:29:06,309 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:29:06,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:29:06,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:29:06,310 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:29:06,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:29:06,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:29:06,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:29:06,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:29:06,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:29:06,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:29:06,311 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:29:06,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:29:06,311 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:29:06,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:29:06,311 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:29:06,311 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:29:06,311 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:29:06,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:29:06,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:29:06,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:29:06,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:29:06,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:29:06,312 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:29:06,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:29:06,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:29:06,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:29:06,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:29:06,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:29:06,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:29:06,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:29:06,313 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2025-02-08 05:29:06,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:29:06,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:29:06,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:29:06,534 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:29:06,534 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:29:06,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2025-02-08 05:29:07,664 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/606ad743a/4007ca2e171c4514be89adf5b45af13c/FLAGafd9434e0 [2025-02-08 05:29:07,944 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:29:07,945 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2025-02-08 05:29:07,957 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/606ad743a/4007ca2e171c4514be89adf5b45af13c/FLAGafd9434e0 [2025-02-08 05:29:07,981 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/606ad743a/4007ca2e171c4514be89adf5b45af13c [2025-02-08 05:29:07,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:29:07,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:29:07,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:29:07,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:29:07,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:29:07,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:29:07" (1/1) ... [2025-02-08 05:29:07,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8edb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:07, skipping insertion in model container [2025-02-08 05:29:07,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:29:07" (1/1) ... [2025-02-08 05:29:08,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:29:08,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:29:08,292 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:29:08,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:29:08,383 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:29:08,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08 WrapperNode [2025-02-08 05:29:08,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:29:08,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:29:08,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:29:08,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:29:08,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,457 INFO L138 Inliner]: procedures = 174, calls = 91, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 846 [2025-02-08 05:29:08,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:29:08,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:29:08,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:29:08,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:29:08,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,521 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:29:08,546 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:29:08,546 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:29:08,546 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:29:08,546 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (1/1) ... [2025-02-08 05:29:08,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:29:08,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:29:08,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:29:08,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:29:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:29:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:29:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:29:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-02-08 05:29:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-02-08 05:29:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:29:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-08 05:29:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:29:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-08 05:29:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:29:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:29:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:29:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:29:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:29:08,595 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:29:08,740 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:29:08,741 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:29:09,759 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:29:09,759 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:29:09,815 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:29:09,818 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:29:09,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:29:09 BoogieIcfgContainer [2025-02-08 05:29:09,818 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:29:09,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:29:09,821 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:29:09,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:29:09,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:29:07" (1/3) ... [2025-02-08 05:29:09,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3893526a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:29:09, skipping insertion in model container [2025-02-08 05:29:09,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:08" (2/3) ... [2025-02-08 05:29:09,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3893526a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:29:09, skipping insertion in model container [2025-02-08 05:29:09,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:29:09" (3/3) ... [2025-02-08 05:29:09,828 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2025-02-08 05:29:09,837 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:29:09,839 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_3t.i that has 2 procedures, 954 locations, 1 initial locations, 16 loop locations, and 77 error locations. [2025-02-08 05:29:09,839 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:29:10,034 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 05:29:10,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 957 places, 1027 transitions, 2061 flow [2025-02-08 05:29:10,518 INFO L124 PetriNetUnfolderBase]: 110/1520 cut-off events. [2025-02-08 05:29:10,520 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:29:10,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1525 conditions, 1520 events. 110/1520 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5741 event pairs, 0 based on Foata normal form. 0/1286 useless extension candidates. Maximal degree in co-relation 917. Up to 4 conditions per place. [2025-02-08 05:29:10,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 957 places, 1027 transitions, 2061 flow [2025-02-08 05:29:10,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 957 places, 1027 transitions, 2061 flow [2025-02-08 05:29:10,586 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:29:10,599 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;@5f18ed3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:29:10,599 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2025-02-08 05:29:10,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:29:10,608 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2025-02-08 05:29:10,608 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:29:10,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:10,610 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] [2025-02-08 05:29:10,610 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)] === [2025-02-08 05:29:10,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:10,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1468338189, now seen corresponding path program 1 times [2025-02-08 05:29:10,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:10,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278876550] [2025-02-08 05:29:10,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:10,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:10,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 05:29:10,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 05:29:10,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:10,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:11,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:11,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:11,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278876550] [2025-02-08 05:29:11,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278876550] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:11,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:11,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:11,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228732966] [2025-02-08 05:29:11,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:11,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:11,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:11,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:11,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:12,783 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1027 [2025-02-08 05:29:12,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 1027 transitions, 2061 flow. Second operand has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:12,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:12,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1027 [2025-02-08 05:29:12,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:22,051 INFO L124 PetriNetUnfolderBase]: 12456/61694 cut-off events. [2025-02-08 05:29:22,051 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-02-08 05:29:22,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85061 conditions, 61694 events. 12456/61694 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 705701 event pairs, 11413 based on Foata normal form. 6044/60286 useless extension candidates. Maximal degree in co-relation 84365. Up to 23357 conditions per place. [2025-02-08 05:29:22,281 INFO L140 encePairwiseOnDemand]: 963/1027 looper letters, 231 selfloop transitions, 5 changer transitions 3/941 dead transitions. [2025-02-08 05:29:22,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 941 transitions, 2361 flow [2025-02-08 05:29:22,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:29:22,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:29:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4687 transitions. [2025-02-08 05:29:22,304 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7606296656929569 [2025-02-08 05:29:22,306 INFO L175 Difference]: Start difference. First operand has 957 places, 1027 transitions, 2061 flow. Second operand 6 states and 4687 transitions. [2025-02-08 05:29:22,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 934 places, 941 transitions, 2361 flow [2025-02-08 05:29:22,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 941 transitions, 2361 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:29:22,334 INFO L231 Difference]: Finished difference. Result has 934 places, 938 transitions, 1893 flow [2025-02-08 05:29:22,337 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=929, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1893, PETRI_PLACES=934, PETRI_TRANSITIONS=938} [2025-02-08 05:29:22,341 INFO L279 CegarLoopForPetriNet]: 957 programPoint places, -23 predicate places. [2025-02-08 05:29:22,344 INFO L471 AbstractCegarLoop]: Abstraction has has 934 places, 938 transitions, 1893 flow [2025-02-08 05:29:22,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:22,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:22,347 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] [2025-02-08 05:29:22,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:29:22,347 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)] === [2025-02-08 05:29:22,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:22,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1347926834, now seen corresponding path program 1 times [2025-02-08 05:29:22,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:22,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925460163] [2025-02-08 05:29:22,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:22,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:22,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-08 05:29:22,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-08 05:29:22,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:22,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:22,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:22,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925460163] [2025-02-08 05:29:22,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925460163] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:22,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:22,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:29:22,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279137654] [2025-02-08 05:29:22,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:22,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:29:22,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:22,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:29:22,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:29:22,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 941 out of 1027 [2025-02-08 05:29:22,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 938 transitions, 1893 flow. Second operand has 3 states, 3 states have (on average 942.3333333333334) internal successors, (2827), 3 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:22,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:22,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 941 of 1027 [2025-02-08 05:29:22,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:23,907 INFO L124 PetriNetUnfolderBase]: 223/4842 cut-off events. [2025-02-08 05:29:23,908 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-08 05:29:23,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5165 conditions, 4842 events. 223/4842 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 35094 event pairs, 110 based on Foata normal form. 1/4183 useless extension candidates. Maximal degree in co-relation 5076. Up to 306 conditions per place. [2025-02-08 05:29:23,979 INFO L140 encePairwiseOnDemand]: 1024/1027 looper letters, 27 selfloop transitions, 2 changer transitions 0/939 dead transitions. [2025-02-08 05:29:23,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 939 transitions, 1953 flow [2025-02-08 05:29:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:29:23,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:29:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2853 transitions. [2025-02-08 05:29:23,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9259980525803311 [2025-02-08 05:29:23,996 INFO L175 Difference]: Start difference. First operand has 934 places, 938 transitions, 1893 flow. Second operand 3 states and 2853 transitions. [2025-02-08 05:29:23,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 939 transitions, 1953 flow [2025-02-08 05:29:24,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 939 transitions, 1943 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:29:24,034 INFO L231 Difference]: Finished difference. Result has 929 places, 939 transitions, 1895 flow [2025-02-08 05:29:24,036 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=926, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=929, PETRI_TRANSITIONS=939} [2025-02-08 05:29:24,037 INFO L279 CegarLoopForPetriNet]: 957 programPoint places, -28 predicate places. [2025-02-08 05:29:24,037 INFO L471 AbstractCegarLoop]: Abstraction has has 929 places, 939 transitions, 1895 flow [2025-02-08 05:29:24,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 942.3333333333334) internal successors, (2827), 3 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:24,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:24,039 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] [2025-02-08 05:29:24,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:29:24,040 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)] === [2025-02-08 05:29:24,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:24,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2005295982, now seen corresponding path program 1 times [2025-02-08 05:29:24,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:24,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703843111] [2025-02-08 05:29:24,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:24,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:24,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 05:29:24,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 05:29:24,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:24,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:24,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:24,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703843111] [2025-02-08 05:29:24,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703843111] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:24,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:24,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:24,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65733058] [2025-02-08 05:29:24,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:24,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:24,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:24,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:25,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1027 [2025-02-08 05:29:25,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 929 places, 939 transitions, 1895 flow. Second operand has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:25,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:25,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1027 [2025-02-08 05:29:25,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:34,475 INFO L124 PetriNetUnfolderBase]: 12456/61718 cut-off events. [2025-02-08 05:29:34,475 INFO L125 PetriNetUnfolderBase]: For 10/13 co-relation queries the response was YES. [2025-02-08 05:29:34,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85100 conditions, 61718 events. 12456/61718 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 706175 event pairs, 11413 based on Foata normal form. 0/54268 useless extension candidates. Maximal degree in co-relation 85016. Up to 23360 conditions per place. [2025-02-08 05:29:34,690 INFO L140 encePairwiseOnDemand]: 1021/1027 looper letters, 232 selfloop transitions, 5 changer transitions 0/938 dead transitions. [2025-02-08 05:29:34,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 938 transitions, 2367 flow [2025-02-08 05:29:34,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:29:34,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:29:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4629 transitions. [2025-02-08 05:29:34,698 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7512171372930867 [2025-02-08 05:29:34,698 INFO L175 Difference]: Start difference. First operand has 929 places, 939 transitions, 1895 flow. Second operand 6 states and 4629 transitions. [2025-02-08 05:29:34,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 938 transitions, 2367 flow [2025-02-08 05:29:34,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 932 places, 938 transitions, 2365 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:29:34,708 INFO L231 Difference]: Finished difference. Result has 932 places, 938 transitions, 1901 flow [2025-02-08 05:29:34,709 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1901, PETRI_PLACES=932, PETRI_TRANSITIONS=938} [2025-02-08 05:29:34,710 INFO L279 CegarLoopForPetriNet]: 957 programPoint places, -25 predicate places. [2025-02-08 05:29:34,710 INFO L471 AbstractCegarLoop]: Abstraction has has 932 places, 938 transitions, 1901 flow [2025-02-08 05:29:34,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:34,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:34,713 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] [2025-02-08 05:29:34,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:29:34,713 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)] === [2025-02-08 05:29:34,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:34,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1286626274, now seen corresponding path program 1 times [2025-02-08 05:29:34,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:34,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886463626] [2025-02-08 05:29:34,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:34,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:34,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 05:29:34,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 05:29:34,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:34,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 05:29:35,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:35,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886463626] [2025-02-08 05:29:35,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886463626] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:35,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:35,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:35,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932386589] [2025-02-08 05:29:35,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:35,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:35,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:35,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:35,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:35,819 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1027 [2025-02-08 05:29:35,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 938 transitions, 1901 flow. Second operand has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:35,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:35,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1027 [2025-02-08 05:29:35,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:45,012 INFO L124 PetriNetUnfolderBase]: 12456/61716 cut-off events. [2025-02-08 05:29:45,013 INFO L125 PetriNetUnfolderBase]: For 9/12 co-relation queries the response was YES. [2025-02-08 05:29:45,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85107 conditions, 61716 events. 12456/61716 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 706082 event pairs, 11413 based on Foata normal form. 0/54268 useless extension candidates. Maximal degree in co-relation 85009. Up to 23360 conditions per place. [2025-02-08 05:29:45,224 INFO L140 encePairwiseOnDemand]: 1021/1027 looper letters, 232 selfloop transitions, 5 changer transitions 0/937 dead transitions. [2025-02-08 05:29:45,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 937 transitions, 2373 flow [2025-02-08 05:29:45,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:29:45,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:29:45,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4629 transitions. [2025-02-08 05:29:45,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7512171372930867 [2025-02-08 05:29:45,232 INFO L175 Difference]: Start difference. First operand has 932 places, 938 transitions, 1901 flow. Second operand 6 states and 4629 transitions. [2025-02-08 05:29:45,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 937 transitions, 2373 flow [2025-02-08 05:29:45,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 931 places, 937 transitions, 2363 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:29:45,245 INFO L231 Difference]: Finished difference. Result has 931 places, 937 transitions, 1899 flow [2025-02-08 05:29:45,246 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=926, 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=1899, PETRI_PLACES=931, PETRI_TRANSITIONS=937} [2025-02-08 05:29:45,246 INFO L279 CegarLoopForPetriNet]: 957 programPoint places, -26 predicate places. [2025-02-08 05:29:45,246 INFO L471 AbstractCegarLoop]: Abstraction has has 931 places, 937 transitions, 1899 flow [2025-02-08 05:29:45,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:45,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:45,249 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] [2025-02-08 05:29:45,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:29:45,249 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)] === [2025-02-08 05:29:45,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:45,249 INFO L85 PathProgramCache]: Analyzing trace with hash -981015613, now seen corresponding path program 1 times [2025-02-08 05:29:45,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:45,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553770253] [2025-02-08 05:29:45,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:45,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-08 05:29:45,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 05:29:45,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:45,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:45,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 05:29:45,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:45,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553770253] [2025-02-08 05:29:45,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553770253] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:29:45,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98809475] [2025-02-08 05:29:45,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:45,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:29:45,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:29:45,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:29:45,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 05:29:45,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-08 05:29:45,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 05:29:45,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:45,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:45,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:29:45,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:29:45,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 05:29:45,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:29:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 05:29:45,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98809475] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:29:45,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:29:45,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-02-08 05:29:45,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974936288] [2025-02-08 05:29:45,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:29:45,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:45,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:45,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:45,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:45,699 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 940 out of 1027 [2025-02-08 05:29:45,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 937 transitions, 1899 flow. Second operand has 6 states, 6 states have (on average 942.1666666666666) internal successors, (5653), 6 states have internal predecessors, (5653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:45,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:45,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 940 of 1027 [2025-02-08 05:29:45,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:46,694 INFO L124 PetriNetUnfolderBase]: 223/4868 cut-off events. [2025-02-08 05:29:46,694 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-02-08 05:29:46,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5207 conditions, 4868 events. 223/4868 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 35035 event pairs, 110 based on Foata normal form. 2/4214 useless extension candidates. Maximal degree in co-relation 5059. Up to 305 conditions per place. [2025-02-08 05:29:46,729 INFO L140 encePairwiseOnDemand]: 1023/1027 looper letters, 29 selfloop transitions, 5 changer transitions 0/941 dead transitions. [2025-02-08 05:29:46,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 941 transitions, 1977 flow [2025-02-08 05:29:46,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:29:46,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 05:29:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4736 transitions. [2025-02-08 05:29:46,736 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9222979552093477 [2025-02-08 05:29:46,737 INFO L175 Difference]: Start difference. First operand has 931 places, 937 transitions, 1899 flow. Second operand 5 states and 4736 transitions. [2025-02-08 05:29:46,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 941 transitions, 1977 flow [2025-02-08 05:29:46,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 930 places, 941 transitions, 1967 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:29:46,750 INFO L231 Difference]: Finished difference. Result has 933 places, 939 transitions, 1919 flow [2025-02-08 05:29:46,751 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=926, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1919, PETRI_PLACES=933, PETRI_TRANSITIONS=939} [2025-02-08 05:29:46,751 INFO L279 CegarLoopForPetriNet]: 957 programPoint places, -24 predicate places. [2025-02-08 05:29:46,751 INFO L471 AbstractCegarLoop]: Abstraction has has 933 places, 939 transitions, 1919 flow [2025-02-08 05:29:46,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 942.1666666666666) internal successors, (5653), 6 states have internal predecessors, (5653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:46,754 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:46,754 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] [2025-02-08 05:29:46,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 05:29:46,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:29:46,955 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)] === [2025-02-08 05:29:46,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:46,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1829016275, now seen corresponding path program 2 times [2025-02-08 05:29:46,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:46,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098712355] [2025-02-08 05:29:46,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:29:46,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:46,989 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 135 statements into 2 equivalence classes. [2025-02-08 05:29:46,992 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 51 of 135 statements. [2025-02-08 05:29:46,992 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:29:46,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2025-02-08 05:29:47,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:47,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098712355] [2025-02-08 05:29:47,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098712355] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:47,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:47,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:47,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102335301] [2025-02-08 05:29:47,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:47,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:47,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:47,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:47,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:47,990 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1027 [2025-02-08 05:29:47,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 939 transitions, 1919 flow. Second operand has 6 states, 6 states have (on average 735.3333333333334) internal successors, (4412), 6 states have internal predecessors, (4412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:47,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:47,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1027 [2025-02-08 05:29:47,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:58,145 INFO L124 PetriNetUnfolderBase]: 12246/61335 cut-off events. [2025-02-08 05:29:58,145 INFO L125 PetriNetUnfolderBase]: For 21/24 co-relation queries the response was YES. [2025-02-08 05:29:58,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84339 conditions, 61335 events. 12246/61335 cut-off events. For 21/24 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 702323 event pairs, 11211 based on Foata normal form. 0/53932 useless extension candidates. Maximal degree in co-relation 84159. Up to 22971 conditions per place. [2025-02-08 05:29:58,373 INFO L140 encePairwiseOnDemand]: 1021/1027 looper letters, 231 selfloop transitions, 5 changer transitions 0/938 dead transitions. [2025-02-08 05:29:58,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 938 transitions, 2389 flow [2025-02-08 05:29:58,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:29:58,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:29:58,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4629 transitions. [2025-02-08 05:29:58,378 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7512171372930867 [2025-02-08 05:29:58,378 INFO L175 Difference]: Start difference. First operand has 933 places, 939 transitions, 1919 flow. Second operand 6 states and 4629 transitions. [2025-02-08 05:29:58,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 938 transitions, 2389 flow [2025-02-08 05:29:58,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 936 places, 938 transitions, 2383 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-08 05:29:58,389 INFO L231 Difference]: Finished difference. Result has 936 places, 938 transitions, 1921 flow [2025-02-08 05:29:58,390 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1911, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1921, PETRI_PLACES=936, PETRI_TRANSITIONS=938} [2025-02-08 05:29:58,391 INFO L279 CegarLoopForPetriNet]: 957 programPoint places, -21 predicate places. [2025-02-08 05:29:58,391 INFO L471 AbstractCegarLoop]: Abstraction has has 936 places, 938 transitions, 1921 flow [2025-02-08 05:29:58,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 735.3333333333334) internal successors, (4412), 6 states have internal predecessors, (4412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:58,393 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:58,393 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] [2025-02-08 05:29:58,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:29:58,393 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)] === [2025-02-08 05:29:58,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:58,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1077973774, now seen corresponding path program 1 times [2025-02-08 05:29:58,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:58,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661378435] [2025-02-08 05:29:58,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:58,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:58,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-08 05:29:58,433 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-08 05:29:58,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:58,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:58,854 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2025-02-08 05:29:58,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:58,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661378435] [2025-02-08 05:29:58,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661378435] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:58,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:58,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:58,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099475003] [2025-02-08 05:29:58,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:58,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:58,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:58,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:58,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:59,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1027 [2025-02-08 05:29:59,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 938 transitions, 1921 flow. Second operand has 6 states, 6 states have (on average 735.3333333333334) internal successors, (4412), 6 states have internal predecessors, (4412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:59,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:59,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1027 [2025-02-08 05:29:59,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand