./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c046e6043edd4a9981865f273deb13bc96b2518d014dd6435bf0abb656de540 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:06:40,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:06:40,199 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 22:06:40,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:06:40,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:06:40,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:06:40,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:06:40,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:06:40,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:06:40,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:06:40,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:06:40,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:06:40,219 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:06:40,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:06:40,220 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:06:40,221 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:06:40,221 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:06:40,221 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:06:40,221 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:06:40,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:06:40,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:06:40,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:06:40,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:06:40,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:06:40,221 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:06:40,221 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:06:40,222 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:06:40,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:06:40,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:06:40,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:06:40,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:06:40,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:06:40,222 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c046e6043edd4a9981865f273deb13bc96b2518d014dd6435bf0abb656de540 [2025-03-08 22:06:40,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:06:40,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:06:40,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:06:40,426 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:06:40,426 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:06:40,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2025-03-08 22:06:41,607 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dc321b08/200cbbdb9d704e77a49b09a4f229fdb4/FLAGcf8594c0b [2025-03-08 22:06:41,850 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:06:41,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2025-03-08 22:06:41,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dc321b08/200cbbdb9d704e77a49b09a4f229fdb4/FLAGcf8594c0b [2025-03-08 22:06:42,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dc321b08/200cbbdb9d704e77a49b09a4f229fdb4 [2025-03-08 22:06:42,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:06:42,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:06:42,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:06:42,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:06:42,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:06:42,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,198 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ec48af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42, skipping insertion in model container [2025-03-08 22:06:42,198 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,212 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:06:42,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:06:42,336 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:06:42,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:06:42,369 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:06:42,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42 WrapperNode [2025-03-08 22:06:42,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:06:42,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:06:42,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:06:42,372 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:06:42,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,397 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 130 [2025-03-08 22:06:42,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:06:42,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:06:42,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:06:42,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:06:42,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,407 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,410 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:06:42,418 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:06:42,418 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:06:42,418 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:06:42,419 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (1/1) ... [2025-03-08 22:06:42,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:06:42,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:06:42,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 22:06:42,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 22:06:42,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:06:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-08 22:06:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-08 22:06:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-08 22:06:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-08 22:06:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 22:06:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:06:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:06:42,477 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 22:06:42,544 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:06:42,545 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:06:42,705 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:06:42,705 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:06:42,732 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:06:42,732 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:06:42,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:06:42 BoogieIcfgContainer [2025-03-08 22:06:42,732 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:06:42,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:06:42,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:06:42,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:06:42,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:06:42" (1/3) ... [2025-03-08 22:06:42,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf5a045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:06:42, skipping insertion in model container [2025-03-08 22:06:42,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:06:42" (2/3) ... [2025-03-08 22:06:42,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf5a045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:06:42, skipping insertion in model container [2025-03-08 22:06:42,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:06:42" (3/3) ... [2025-03-08 22:06:42,741 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2025-03-08 22:06:42,752 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:06:42,754 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-2.wvr.c that has 3 procedures, 139 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-03-08 22:06:42,754 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:06:42,813 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-08 22:06:42,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 143 transitions, 300 flow [2025-03-08 22:06:42,889 INFO L124 PetriNetUnfolderBase]: 5/141 cut-off events. [2025-03-08 22:06:42,894 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-08 22:06:42,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 141 events. 5/141 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2025-03-08 22:06:42,898 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 143 transitions, 300 flow [2025-03-08 22:06:42,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 124 transitions, 257 flow [2025-03-08 22:06:42,908 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:06:42,916 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;@3ee5f354, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:06:42,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2025-03-08 22:06:42,926 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:06:42,926 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-03-08 22:06:42,926 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:06:42,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:06:42,927 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] [2025-03-08 22:06:42,927 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-08 22:06:42,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:06:42,934 INFO L85 PathProgramCache]: Analyzing trace with hash -460764750, now seen corresponding path program 1 times [2025-03-08 22:06:42,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:06:42,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837244732] [2025-03-08 22:06:42,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:06:42,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:06:42,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-08 22:06:43,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-08 22:06:43,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:06:43,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:06:43,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:06:43,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:06:43,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837244732] [2025-03-08 22:06:43,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837244732] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:06:43,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:06:43,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:06:43,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838240907] [2025-03-08 22:06:43,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:06:43,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:06:43,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:06:43,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:06:43,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:06:43,133 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 143 [2025-03-08 22:06:43,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:06:43,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 143 [2025-03-08 22:06:43,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:06:43,247 INFO L124 PetriNetUnfolderBase]: 34/250 cut-off events. [2025-03-08 22:06:43,248 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-03-08 22:06:43,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 250 events. 34/250 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 851 event pairs, 26 based on Foata normal form. 11/233 useless extension candidates. Maximal degree in co-relation 259. Up to 80 conditions per place. [2025-03-08 22:06:43,251 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 19 selfloop transitions, 2 changer transitions 1/120 dead transitions. [2025-03-08 22:06:43,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 120 transitions, 291 flow [2025-03-08 22:06:43,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:06:43,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:06:43,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2025-03-08 22:06:43,264 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8554778554778555 [2025-03-08 22:06:43,266 INFO L175 Difference]: Start difference. First operand has 127 places, 124 transitions, 257 flow. Second operand 3 states and 367 transitions. [2025-03-08 22:06:43,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 120 transitions, 291 flow [2025-03-08 22:06:43,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 120 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-08 22:06:43,274 INFO L231 Difference]: Finished difference. Result has 125 places, 119 transitions, 246 flow [2025-03-08 22:06:43,276 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=125, PETRI_TRANSITIONS=119} [2025-03-08 22:06:43,280 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -2 predicate places. [2025-03-08 22:06:43,280 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 119 transitions, 246 flow [2025-03-08 22:06:43,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,281 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:06:43,281 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] [2025-03-08 22:06:43,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:06:43,281 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-08 22:06:43,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:06:43,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1812993105, now seen corresponding path program 1 times [2025-03-08 22:06:43,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:06:43,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442140093] [2025-03-08 22:06:43,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:06:43,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:06:43,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-08 22:06:43,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-08 22:06:43,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:06:43,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:06:43,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:06:43,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:06:43,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442140093] [2025-03-08 22:06:43,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442140093] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:06:43,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:06:43,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:06:43,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854169884] [2025-03-08 22:06:43,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:06:43,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:06:43,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:06:43,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:06:43,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:06:43,350 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 143 [2025-03-08 22:06:43,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 119 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:06:43,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 143 [2025-03-08 22:06:43,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:06:43,429 INFO L124 PetriNetUnfolderBase]: 34/280 cut-off events. [2025-03-08 22:06:43,431 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-08 22:06:43,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 280 events. 34/280 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 986 event pairs, 28 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 349. Up to 82 conditions per place. [2025-03-08 22:06:43,434 INFO L140 encePairwiseOnDemand]: 140/143 looper letters, 19 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2025-03-08 22:06:43,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 118 transitions, 286 flow [2025-03-08 22:06:43,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:06:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:06:43,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2025-03-08 22:06:43,439 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8484848484848485 [2025-03-08 22:06:43,439 INFO L175 Difference]: Start difference. First operand has 125 places, 119 transitions, 246 flow. Second operand 3 states and 364 transitions. [2025-03-08 22:06:43,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 118 transitions, 286 flow [2025-03-08 22:06:43,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 118 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:06:43,441 INFO L231 Difference]: Finished difference. Result has 123 places, 118 transitions, 244 flow [2025-03-08 22:06:43,441 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=123, PETRI_TRANSITIONS=118} [2025-03-08 22:06:43,442 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -4 predicate places. [2025-03-08 22:06:43,442 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 118 transitions, 244 flow [2025-03-08 22:06:43,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:06:43,444 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] [2025-03-08 22:06:43,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:06:43,445 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-08 22:06:43,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:06:43,446 INFO L85 PathProgramCache]: Analyzing trace with hash 944673915, now seen corresponding path program 1 times [2025-03-08 22:06:43,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:06:43,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030318106] [2025-03-08 22:06:43,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:06:43,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:06:43,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-08 22:06:43,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-08 22:06:43,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:06:43,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:06:43,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:06:43,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:06:43,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030318106] [2025-03-08 22:06:43,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030318106] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:06:43,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:06:43,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:06:43,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325806453] [2025-03-08 22:06:43,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:06:43,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:06:43,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:06:43,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:06:43,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:06:43,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 143 [2025-03-08 22:06:43,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 118 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:06:43,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 143 [2025-03-08 22:06:43,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:06:43,628 INFO L124 PetriNetUnfolderBase]: 49/259 cut-off events. [2025-03-08 22:06:43,628 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-08 22:06:43,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 259 events. 49/259 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 973 event pairs, 30 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 354. Up to 88 conditions per place. [2025-03-08 22:06:43,629 INFO L140 encePairwiseOnDemand]: 140/143 looper letters, 22 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2025-03-08 22:06:43,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 121 transitions, 300 flow [2025-03-08 22:06:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:06:43,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:06:43,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2025-03-08 22:06:43,631 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8694638694638694 [2025-03-08 22:06:43,631 INFO L175 Difference]: Start difference. First operand has 123 places, 118 transitions, 244 flow. Second operand 3 states and 373 transitions. [2025-03-08 22:06:43,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 121 transitions, 300 flow [2025-03-08 22:06:43,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 121 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:06:43,633 INFO L231 Difference]: Finished difference. Result has 122 places, 117 transitions, 242 flow [2025-03-08 22:06:43,633 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=122, PETRI_TRANSITIONS=117} [2025-03-08 22:06:43,634 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2025-03-08 22:06:43,634 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 117 transitions, 242 flow [2025-03-08 22:06:43,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,634 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:06:43,634 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] [2025-03-08 22:06:43,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:06:43,634 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-08 22:06:43,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:06:43,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1909318787, now seen corresponding path program 1 times [2025-03-08 22:06:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:06:43,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133404743] [2025-03-08 22:06:43,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:06:43,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:06:43,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 22:06:43,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 22:06:43,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:06:43,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:06:43,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:06:43,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:06:43,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133404743] [2025-03-08 22:06:43,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133404743] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:06:43,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:06:43,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:06:43,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790819902] [2025-03-08 22:06:43,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:06:43,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:06:43,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:06:43,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:06:43,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:06:43,703 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 143 [2025-03-08 22:06:43,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 117 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:06:43,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 143 [2025-03-08 22:06:43,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:06:43,747 INFO L124 PetriNetUnfolderBase]: 39/243 cut-off events. [2025-03-08 22:06:43,747 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-08 22:06:43,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 243 events. 39/243 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 839 event pairs, 7 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 224. Up to 58 conditions per place. [2025-03-08 22:06:43,748 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 17 selfloop transitions, 1 changer transitions 17/120 dead transitions. [2025-03-08 22:06:43,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 120 transitions, 294 flow [2025-03-08 22:06:43,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:06:43,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:06:43,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2025-03-08 22:06:43,751 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2025-03-08 22:06:43,751 INFO L175 Difference]: Start difference. First operand has 122 places, 117 transitions, 242 flow. Second operand 3 states and 377 transitions. [2025-03-08 22:06:43,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 120 transitions, 294 flow [2025-03-08 22:06:43,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 120 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:06:43,754 INFO L231 Difference]: Finished difference. Result has 121 places, 101 transitions, 208 flow [2025-03-08 22:06:43,755 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=121, PETRI_TRANSITIONS=101} [2025-03-08 22:06:43,756 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -6 predicate places. [2025-03-08 22:06:43,756 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 101 transitions, 208 flow [2025-03-08 22:06:43,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,756 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:06:43,756 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] [2025-03-08 22:06:43,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:06:43,757 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-08 22:06:43,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:06:43,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1638027297, now seen corresponding path program 1 times [2025-03-08 22:06:43,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:06:43,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875353327] [2025-03-08 22:06:43,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:06:43,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:06:43,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-08 22:06:43,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-08 22:06:43,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:06:43,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:06:43,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:06:43,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:06:43,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875353327] [2025-03-08 22:06:43,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875353327] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:06:43,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:06:43,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:06:43,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326621183] [2025-03-08 22:06:43,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:06:43,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:06:43,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:06:43,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:06:43,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:06:43,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 143 [2025-03-08 22:06:43,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 101 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:06:43,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 143 [2025-03-08 22:06:43,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:06:43,860 INFO L124 PetriNetUnfolderBase]: 34/235 cut-off events. [2025-03-08 22:06:43,861 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-08 22:06:43,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 235 events. 34/235 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 656 event pairs, 24 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 219. Up to 65 conditions per place. [2025-03-08 22:06:43,862 INFO L140 encePairwiseOnDemand]: 140/143 looper letters, 21 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2025-03-08 22:06:43,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 105 transitions, 263 flow [2025-03-08 22:06:43,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:06:43,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:06:43,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2025-03-08 22:06:43,864 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8671328671328671 [2025-03-08 22:06:43,865 INFO L175 Difference]: Start difference. First operand has 121 places, 101 transitions, 208 flow. Second operand 3 states and 372 transitions. [2025-03-08 22:06:43,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 105 transitions, 263 flow [2025-03-08 22:06:43,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 105 transitions, 262 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 22:06:43,867 INFO L231 Difference]: Finished difference. Result has 107 places, 100 transitions, 209 flow [2025-03-08 22:06:43,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=107, PETRI_TRANSITIONS=100} [2025-03-08 22:06:43,868 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -20 predicate places. [2025-03-08 22:06:43,868 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 100 transitions, 209 flow [2025-03-08 22:06:43,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,870 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:06:43,870 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] [2025-03-08 22:06:43,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:06:43,871 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-08 22:06:43,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:06:43,871 INFO L85 PathProgramCache]: Analyzing trace with hash 710920867, now seen corresponding path program 1 times [2025-03-08 22:06:43,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:06:43,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971901020] [2025-03-08 22:06:43,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:06:43,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:06:43,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 22:06:43,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 22:06:43,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:06:43,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:06:43,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:06:43,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:06:43,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971901020] [2025-03-08 22:06:43,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971901020] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:06:43,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:06:43,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:06:43,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648032181] [2025-03-08 22:06:43,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:06:43,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:06:43,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:06:43,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:06:43,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:06:43,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 143 [2025-03-08 22:06:43,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 100 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:06:43,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 143 [2025-03-08 22:06:43,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:06:43,980 INFO L124 PetriNetUnfolderBase]: 19/191 cut-off events. [2025-03-08 22:06:43,981 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-03-08 22:06:43,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 191 events. 19/191 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 453 event pairs, 14 based on Foata normal form. 6/190 useless extension candidates. Maximal degree in co-relation 193. Up to 43 conditions per place. [2025-03-08 22:06:43,981 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 0 selfloop transitions, 0 changer transitions 104/104 dead transitions. [2025-03-08 22:06:43,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 104 transitions, 258 flow [2025-03-08 22:06:43,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:06:43,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:06:43,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2025-03-08 22:06:43,982 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8741258741258742 [2025-03-08 22:06:43,982 INFO L175 Difference]: Start difference. First operand has 107 places, 100 transitions, 209 flow. Second operand 3 states and 375 transitions. [2025-03-08 22:06:43,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 104 transitions, 258 flow [2025-03-08 22:06:43,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 104 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 22:06:43,984 INFO L231 Difference]: Finished difference. Result has 106 places, 0 transitions, 0 flow [2025-03-08 22:06:43,984 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=106, PETRI_TRANSITIONS=0} [2025-03-08 22:06:43,984 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -21 predicate places. [2025-03-08 22:06:43,984 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 0 transitions, 0 flow [2025-03-08 22:06:43,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:06:43,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2025-03-08 22:06:43,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2025-03-08 22:06:43,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2025-03-08 22:06:43,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2025-03-08 22:06:43,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2025-03-08 22:06:43,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2025-03-08 22:06:43,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2025-03-08 22:06:43,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2025-03-08 22:06:43,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2025-03-08 22:06:43,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2025-03-08 22:06:43,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2025-03-08 22:06:43,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2025-03-08 22:06:43,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 22:06:43,992 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-08 22:06:43,995 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 22:06:43,995 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 22:06:44,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 10:06:44 BasicIcfg [2025-03-08 22:06:44,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 22:06:44,003 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 22:06:44,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 22:06:44,003 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 22:06:44,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:06:42" (3/4) ... [2025-03-08 22:06:44,005 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 22:06:44,006 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-08 22:06:44,007 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-08 22:06:44,009 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-08 22:06:44,010 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 22:06:44,010 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-08 22:06:44,010 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 22:06:44,089 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 22:06:44,089 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 22:06:44,089 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 22:06:44,089 INFO L158 Benchmark]: Toolchain (without parser) took 1898.27ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 128.5MB in the end (delta: -4.9MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2025-03-08 22:06:44,090 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 118.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:06:44,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.02ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 112.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 22:06:44,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.00ms. Allocated memory is still 167.8MB. Free memory was 112.2MB in the beginning and 110.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:06:44,090 INFO L158 Benchmark]: Boogie Preprocessor took 17.12ms. Allocated memory is still 167.8MB. Free memory was 110.5MB in the beginning and 109.6MB in the end (delta: 948.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 22:06:44,090 INFO L158 Benchmark]: IcfgBuilder took 313.93ms. Allocated memory is still 167.8MB. Free memory was 109.6MB in the beginning and 93.8MB in the end (delta: 15.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 22:06:44,091 INFO L158 Benchmark]: TraceAbstraction took 1268.86ms. Allocated memory is still 167.8MB. Free memory was 92.8MB in the beginning and 46.5MB in the end (delta: 46.3MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2025-03-08 22:06:44,091 INFO L158 Benchmark]: Witness Printer took 86.16ms. Allocated memory is still 167.8MB. Free memory was 46.5MB in the beginning and 128.5MB in the end (delta: -82.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:06:44,092 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 118.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.02ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 112.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.00ms. Allocated memory is still 167.8MB. Free memory was 112.2MB in the beginning and 110.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.12ms. Allocated memory is still 167.8MB. Free memory was 110.5MB in the beginning and 109.6MB in the end (delta: 948.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 313.93ms. Allocated memory is still 167.8MB. Free memory was 109.6MB in the beginning and 93.8MB in the end (delta: 15.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1268.86ms. Allocated memory is still 167.8MB. Free memory was 92.8MB in the beginning and 46.5MB in the end (delta: 46.3MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * Witness Printer took 86.16ms. Allocated memory is still 167.8MB. Free memory was 46.5MB in the beginning and 128.5MB in the end (delta: -82.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: 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 5 procedures, 193 locations, 200 edges, 12 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: 1.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 275 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 17 mSDtfsCounter, 275 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=257occurred 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, 0.2s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 334 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 22:06:44,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE