./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-misc-4.wvr.c --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/weaver/parallel-misc-4.wvr.c -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 287b872f435ea31dbbf77f267944e24b96122b5f745db0674c91555289f3b84c --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:39:20,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:39:20,178 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:39:20,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:39:20,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:39:20,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:39:20,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:39:20,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:39:20,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:39:20,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:39:20,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:39:20,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:39:20,207 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:39:20,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:39:20,208 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:39:20,209 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:39:20,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:39:20,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:39:20,210 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 -> 287b872f435ea31dbbf77f267944e24b96122b5f745db0674c91555289f3b84c [2025-02-08 05:39:20,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:39:20,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:39:20,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:39:20,430 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:39:20,430 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:39:20,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-4.wvr.c [2025-02-08 05:39:21,541 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e7baa31b6/ee12107d3bae41c981862932b88f5d9f/FLAG8d1ca2fcf [2025-02-08 05:39:21,785 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:39:21,785 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-4.wvr.c [2025-02-08 05:39:21,793 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e7baa31b6/ee12107d3bae41c981862932b88f5d9f/FLAG8d1ca2fcf [2025-02-08 05:39:22,120 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e7baa31b6/ee12107d3bae41c981862932b88f5d9f [2025-02-08 05:39:22,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:39:22,123 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:39:22,123 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:39:22,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:39:22,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:39:22,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5957c667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22, skipping insertion in model container [2025-02-08 05:39:22,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:39:22,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:39:22,255 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:39:22,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:39:22,287 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:39:22,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22 WrapperNode [2025-02-08 05:39:22,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:39:22,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:39:22,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:39:22,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:39:22,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,311 INFO L138 Inliner]: procedures = 19, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2025-02-08 05:39:22,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:39:22,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:39:22,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:39:22,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:39:22,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,324 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:39:22,331 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:39:22,331 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:39:22,331 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:39:22,332 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (1/1) ... [2025-02-08 05:39:22,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:39:22,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:39:22,355 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 05:39:22,356 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 05:39:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:39:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 05:39:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 05:39:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 05:39:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 05:39:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 05:39:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 05:39:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:39:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:39:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:39:22,375 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 05:39:22,448 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:39:22,450 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:39:22,678 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:39:22,678 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:39:22,705 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:39:22,706 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:39:22,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:39:22 BoogieIcfgContainer [2025-02-08 05:39:22,707 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:39:22,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:39:22,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:39:22,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:39:22,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:39:22" (1/3) ... [2025-02-08 05:39:22,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae1340c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:39:22, skipping insertion in model container [2025-02-08 05:39:22,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:22" (2/3) ... [2025-02-08 05:39:22,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae1340c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:39:22, skipping insertion in model container [2025-02-08 05:39:22,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:39:22" (3/3) ... [2025-02-08 05:39:22,716 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-4.wvr.c [2025-02-08 05:39:22,727 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:39:22,729 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-4.wvr.c that has 4 procedures, 142 locations, 1 initial locations, 2 loop locations, and 11 error locations. [2025-02-08 05:39:22,730 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:39:22,789 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 05:39:22,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 148 transitions, 317 flow [2025-02-08 05:39:22,865 INFO L124 PetriNetUnfolderBase]: 7/145 cut-off events. [2025-02-08 05:39:22,867 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 05:39:22,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 7/145 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 208 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 131. Up to 2 conditions per place. [2025-02-08 05:39:22,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 148 transitions, 317 flow [2025-02-08 05:39:22,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 135 transitions, 282 flow [2025-02-08 05:39:22,879 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:39:22,887 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;@771c6d9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:39:22,887 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-02-08 05:39:22,893 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:39:22,893 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-02-08 05:39:22,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:39:22,893 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:22,894 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] [2025-02-08 05:39:22,894 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-08 05:39:22,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:22,898 INFO L85 PathProgramCache]: Analyzing trace with hash -916712799, now seen corresponding path program 1 times [2025-02-08 05:39:22,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:22,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219425461] [2025-02-08 05:39:22,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:22,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:22,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 05:39:22,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 05:39:22,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:22,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:23,038 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 05:39:23,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:23,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219425461] [2025-02-08 05:39:23,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219425461] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:23,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:23,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:23,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934873468] [2025-02-08 05:39:23,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:23,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:23,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:23,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:23,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:23,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 148 [2025-02-08 05:39:23,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 05:39:23,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:23,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 148 [2025-02-08 05:39:23,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:23,260 INFO L124 PetriNetUnfolderBase]: 113/577 cut-off events. [2025-02-08 05:39:23,260 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2025-02-08 05:39:23,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 577 events. 113/577 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3019 event pairs, 46 based on Foata normal form. 1/470 useless extension candidates. Maximal degree in co-relation 648. Up to 158 conditions per place. [2025-02-08 05:39:23,266 INFO L140 encePairwiseOnDemand]: 144/148 looper letters, 19 selfloop transitions, 2 changer transitions 1/133 dead transitions. [2025-02-08 05:39:23,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 133 transitions, 320 flow [2025-02-08 05:39:23,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:23,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2025-02-08 05:39:23,279 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8693693693693694 [2025-02-08 05:39:23,280 INFO L175 Difference]: Start difference. First operand has 138 places, 135 transitions, 282 flow. Second operand 3 states and 386 transitions. [2025-02-08 05:39:23,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 133 transitions, 320 flow [2025-02-08 05:39:23,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 133 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 05:39:23,289 INFO L231 Difference]: Finished difference. Result has 135 places, 132 transitions, 274 flow [2025-02-08 05:39:23,291 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=135, PETRI_TRANSITIONS=132} [2025-02-08 05:39:23,293 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -3 predicate places. [2025-02-08 05:39:23,295 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 132 transitions, 274 flow [2025-02-08 05:39:23,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 05:39:23,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:23,296 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] [2025-02-08 05:39:23,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:39:23,296 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-08 05:39:23,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:23,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1189690062, now seen corresponding path program 1 times [2025-02-08 05:39:23,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:23,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648864170] [2025-02-08 05:39:23,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:23,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:23,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-08 05:39:23,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 05:39:23,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:23,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:23,380 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 05:39:23,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:23,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648864170] [2025-02-08 05:39:23,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648864170] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:23,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:23,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:23,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918829476] [2025-02-08 05:39:23,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:23,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:23,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:23,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:23,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:23,410 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 148 [2025-02-08 05:39:23,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 132 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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 05:39:23,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:23,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 148 [2025-02-08 05:39:23,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:23,500 INFO L124 PetriNetUnfolderBase]: 93/430 cut-off events. [2025-02-08 05:39:23,500 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-02-08 05:39:23,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 430 events. 93/430 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2120 event pairs, 67 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 590. Up to 151 conditions per place. [2025-02-08 05:39:23,505 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 18 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2025-02-08 05:39:23,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 131 transitions, 312 flow [2025-02-08 05:39:23,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:23,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:23,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2025-02-08 05:39:23,509 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8716216216216216 [2025-02-08 05:39:23,509 INFO L175 Difference]: Start difference. First operand has 135 places, 132 transitions, 274 flow. Second operand 3 states and 387 transitions. [2025-02-08 05:39:23,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 131 transitions, 312 flow [2025-02-08 05:39:23,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 131 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:39:23,511 INFO L231 Difference]: Finished difference. Result has 133 places, 131 transitions, 272 flow [2025-02-08 05:39:23,512 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=133, PETRI_TRANSITIONS=131} [2025-02-08 05:39:23,512 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -5 predicate places. [2025-02-08 05:39:23,512 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 131 transitions, 272 flow [2025-02-08 05:39:23,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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 05:39:23,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:23,513 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] [2025-02-08 05:39:23,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:39:23,513 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-08 05:39:23,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:23,513 INFO L85 PathProgramCache]: Analyzing trace with hash 689942566, now seen corresponding path program 1 times [2025-02-08 05:39:23,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:23,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10091242] [2025-02-08 05:39:23,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:23,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:23,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 05:39:23,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 05:39:23,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:23,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:23,568 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 05:39:23,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:23,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10091242] [2025-02-08 05:39:23,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10091242] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:23,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:23,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:23,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843850995] [2025-02-08 05:39:23,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:23,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:23,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:23,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:23,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:23,598 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 148 [2025-02-08 05:39:23,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 131 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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 05:39:23,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:23,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 148 [2025-02-08 05:39:23,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:23,712 INFO L124 PetriNetUnfolderBase]: 172/847 cut-off events. [2025-02-08 05:39:23,713 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-02-08 05:39:23,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 847 events. 172/847 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5187 event pairs, 56 based on Foata normal form. 0/696 useless extension candidates. Maximal degree in co-relation 1106. Up to 179 conditions per place. [2025-02-08 05:39:23,717 INFO L140 encePairwiseOnDemand]: 141/148 looper letters, 26 selfloop transitions, 3 changer transitions 0/135 dead transitions. [2025-02-08 05:39:23,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 135 transitions, 344 flow [2025-02-08 05:39:23,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:23,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:23,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2025-02-08 05:39:23,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8783783783783784 [2025-02-08 05:39:23,719 INFO L175 Difference]: Start difference. First operand has 133 places, 131 transitions, 272 flow. Second operand 3 states and 390 transitions. [2025-02-08 05:39:23,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 135 transitions, 344 flow [2025-02-08 05:39:23,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 135 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:39:23,722 INFO L231 Difference]: Finished difference. Result has 130 places, 128 transitions, 273 flow [2025-02-08 05:39:23,722 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=130, PETRI_TRANSITIONS=128} [2025-02-08 05:39:23,723 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -8 predicate places. [2025-02-08 05:39:23,723 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 128 transitions, 273 flow [2025-02-08 05:39:23,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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 05:39:23,723 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:23,723 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 05:39:23,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:39:23,724 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-08 05:39:23,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:23,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1609850559, now seen corresponding path program 1 times [2025-02-08 05:39:23,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:23,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024611541] [2025-02-08 05:39:23,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:23,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:23,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 05:39:23,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 05:39:23,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:23,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:23,789 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 05:39:23,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:23,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024611541] [2025-02-08 05:39:23,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024611541] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:23,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:23,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:23,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207543914] [2025-02-08 05:39:23,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:23,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:23,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:23,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:23,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:23,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 148 [2025-02-08 05:39:23,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 128 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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 05:39:23,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:23,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 148 [2025-02-08 05:39:23,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:23,925 INFO L124 PetriNetUnfolderBase]: 216/702 cut-off events. [2025-02-08 05:39:23,925 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2025-02-08 05:39:23,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 702 events. 216/702 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4093 event pairs, 56 based on Foata normal form. 0/646 useless extension candidates. Maximal degree in co-relation 510. Up to 273 conditions per place. [2025-02-08 05:39:23,930 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 24 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2025-02-08 05:39:23,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 133 transitions, 343 flow [2025-02-08 05:39:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:23,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:23,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2025-02-08 05:39:23,932 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2025-02-08 05:39:23,932 INFO L175 Difference]: Start difference. First operand has 130 places, 128 transitions, 273 flow. Second operand 3 states and 396 transitions. [2025-02-08 05:39:23,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 133 transitions, 343 flow [2025-02-08 05:39:23,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 133 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:39:23,935 INFO L231 Difference]: Finished difference. Result has 129 places, 126 transitions, 277 flow [2025-02-08 05:39:23,935 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=129, PETRI_TRANSITIONS=126} [2025-02-08 05:39:23,936 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -9 predicate places. [2025-02-08 05:39:23,936 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 126 transitions, 277 flow [2025-02-08 05:39:23,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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 05:39:23,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:23,936 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] [2025-02-08 05:39:23,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:39:23,937 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-08 05:39:23,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:23,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1672777591, now seen corresponding path program 1 times [2025-02-08 05:39:23,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:23,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396511426] [2025-02-08 05:39:23,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:23,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:23,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 05:39:23,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 05:39:23,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:23,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:24,022 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 05:39:24,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:24,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396511426] [2025-02-08 05:39:24,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396511426] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:24,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:24,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:24,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170224130] [2025-02-08 05:39:24,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:24,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:24,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:24,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:24,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:24,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 148 [2025-02-08 05:39:24,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 126 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 05:39:24,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:24,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 148 [2025-02-08 05:39:24,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:24,137 INFO L124 PetriNetUnfolderBase]: 264/908 cut-off events. [2025-02-08 05:39:24,137 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-02-08 05:39:24,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1471 conditions, 908 events. 264/908 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5244 event pairs, 78 based on Foata normal form. 0/810 useless extension candidates. Maximal degree in co-relation 818. Up to 299 conditions per place. [2025-02-08 05:39:24,142 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 24 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2025-02-08 05:39:24,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 130 transitions, 341 flow [2025-02-08 05:39:24,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:24,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2025-02-08 05:39:24,144 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8896396396396397 [2025-02-08 05:39:24,144 INFO L175 Difference]: Start difference. First operand has 129 places, 126 transitions, 277 flow. Second operand 3 states and 395 transitions. [2025-02-08 05:39:24,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 130 transitions, 341 flow [2025-02-08 05:39:24,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 130 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:39:24,147 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 276 flow [2025-02-08 05:39:24,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2025-02-08 05:39:24,147 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -9 predicate places. [2025-02-08 05:39:24,147 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 276 flow [2025-02-08 05:39:24,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 05:39:24,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:24,148 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] [2025-02-08 05:39:24,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:39:24,148 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-02-08 05:39:24,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:24,149 INFO L85 PathProgramCache]: Analyzing trace with hash 597606841, now seen corresponding path program 1 times [2025-02-08 05:39:24,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:24,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931542248] [2025-02-08 05:39:24,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:24,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:24,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-08 05:39:24,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-08 05:39:24,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:24,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:24,216 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 05:39:24,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:24,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931542248] [2025-02-08 05:39:24,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931542248] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:24,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:24,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:24,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955726371] [2025-02-08 05:39:24,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:24,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:24,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:24,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:24,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:24,240 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 148 [2025-02-08 05:39:24,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 125 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 05:39:24,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:24,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 148 [2025-02-08 05:39:24,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:24,316 INFO L124 PetriNetUnfolderBase]: 237/728 cut-off events. [2025-02-08 05:39:24,316 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2025-02-08 05:39:24,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 728 events. 237/728 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4200 event pairs, 110 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 1211. Up to 292 conditions per place. [2025-02-08 05:39:24,319 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 0 selfloop transitions, 0 changer transitions 129/129 dead transitions. [2025-02-08 05:39:24,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 129 transitions, 337 flow [2025-02-08 05:39:24,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:24,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:24,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2025-02-08 05:39:24,323 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2025-02-08 05:39:24,323 INFO L175 Difference]: Start difference. First operand has 129 places, 125 transitions, 276 flow. Second operand 3 states and 397 transitions. [2025-02-08 05:39:24,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 129 transitions, 337 flow [2025-02-08 05:39:24,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 129 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:39:24,326 INFO L231 Difference]: Finished difference. Result has 128 places, 0 transitions, 0 flow [2025-02-08 05:39:24,326 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=128, PETRI_TRANSITIONS=0} [2025-02-08 05:39:24,327 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -10 predicate places. [2025-02-08 05:39:24,327 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 0 transitions, 0 flow [2025-02-08 05:39:24,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 05:39:24,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2025-02-08 05:39:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2025-02-08 05:39:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2025-02-08 05:39:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2025-02-08 05:39:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2025-02-08 05:39:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2025-02-08 05:39:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2025-02-08 05:39:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2025-02-08 05:39:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2025-02-08 05:39:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2025-02-08 05:39:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2025-02-08 05:39:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2025-02-08 05:39:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 20 remaining) [2025-02-08 05:39:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 20 remaining) [2025-02-08 05:39:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2025-02-08 05:39:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2025-02-08 05:39:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2025-02-08 05:39:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2025-02-08 05:39:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2025-02-08 05:39:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2025-02-08 05:39:24,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:39:24,332 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-02-08 05:39:24,335 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 05:39:24,336 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 05:39:24,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 05:39:24 BasicIcfg [2025-02-08 05:39:24,339 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 05:39:24,340 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 05:39:24,340 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 05:39:24,340 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 05:39:24,341 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:39:22" (3/4) ... [2025-02-08 05:39:24,342 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 05:39:24,344 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 05:39:24,344 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 05:39:24,344 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 05:39:24,347 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 05:39:24,347 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 05:39:24,347 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 05:39:24,347 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 05:39:24,400 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 05:39:24,400 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 05:39:24,400 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 05:39:24,400 INFO L158 Benchmark]: Toolchain (without parser) took 2277.85ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 40.4MB in the end (delta: 73.7MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2025-02-08 05:39:24,401 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:39:24,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.67ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 102.2MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:39:24,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.58ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 101.3MB in the end (delta: 983.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:39:24,401 INFO L158 Benchmark]: Boogie Preprocessor took 18.75ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 100.4MB in the end (delta: 839.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:39:24,401 INFO L158 Benchmark]: IcfgBuilder took 375.99ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 82.7MB in the end (delta: 17.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:39:24,401 INFO L158 Benchmark]: TraceAbstraction took 1630.46ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 45.7MB in the end (delta: 36.4MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2025-02-08 05:39:24,401 INFO L158 Benchmark]: Witness Printer took 60.09ms. Allocated memory is still 142.6MB. Free memory was 45.7MB in the beginning and 40.4MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:39:24,402 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.67ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 102.2MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.58ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 101.3MB in the end (delta: 983.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.75ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 100.4MB in the end (delta: 839.2kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 375.99ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 82.7MB in the end (delta: 17.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1630.46ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 45.7MB in the end (delta: 36.4MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Witness Printer took 60.09ms. Allocated memory is still 142.6MB. Free memory was 45.7MB in the beginning and 40.4MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 192 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 316 IncrementalHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 40 mSDtfsCounter, 316 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 283 NumberOfCodeBlocks, 283 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 277 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 05:39:24,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE