./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-atomic/read_write_lock-2b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/read_write_lock-2b.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b71c781c26c072fdf5838e0877462128517513c3df1f3bde9f2474cb4533ecb --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:09:43,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:09:43,708 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:09:43,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:09:43,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:09:43,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:09:43,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:09:43,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:09:43,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:09:43,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:09:43,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:09:43,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:09:43,737 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:09:43,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:09:43,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:09:43,738 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:09:43,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:09:43,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:09:43,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:09:43,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:09:43,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:09:43,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:09:43,738 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:09:43,739 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:09:43,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:09:43,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:09:43,740 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 -> 7b71c781c26c072fdf5838e0877462128517513c3df1f3bde9f2474cb4533ecb [2025-02-08 05:09:43,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:09:44,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:09:44,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:09:44,004 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:09:44,004 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:09:44,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/read_write_lock-2b.i [2025-02-08 05:09:45,249 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0766bc3bd/21b4e8fb49aa4db4bebae2aa5af48cd7/FLAG3cda69303 [2025-02-08 05:09:45,559 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:09:45,560 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-2b.i [2025-02-08 05:09:45,573 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0766bc3bd/21b4e8fb49aa4db4bebae2aa5af48cd7/FLAG3cda69303 [2025-02-08 05:09:45,835 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0766bc3bd/21b4e8fb49aa4db4bebae2aa5af48cd7 [2025-02-08 05:09:45,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:09:45,838 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:09:45,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:09:45,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:09:45,842 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:09:45,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:09:45" (1/1) ... [2025-02-08 05:09:45,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6178d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:45, skipping insertion in model container [2025-02-08 05:09:45,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:09:45" (1/1) ... [2025-02-08 05:09:45,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:09:46,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:09:46,083 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:09:46,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:09:46,135 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:09:46,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46 WrapperNode [2025-02-08 05:09:46,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:09:46,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:09:46,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:09:46,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:09:46,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,161 INFO L138 Inliner]: procedures = 169, calls = 15, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 123 [2025-02-08 05:09:46,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:09:46,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:09:46,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:09:46,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:09:46,167 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,172 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:09:46,177 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:09:46,177 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:09:46,177 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:09:46,181 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (1/1) ... [2025-02-08 05:09:46,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:09:46,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:09:46,212 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 05:09:46,219 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 05:09:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:09:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-02-08 05:09:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-02-08 05:09:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:09:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:09:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:09:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-02-08 05:09:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-02-08 05:09:46,237 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 05:09:46,342 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:09:46,343 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:09:46,509 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:09:46,510 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:09:46,583 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:09:46,584 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:09:46,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:09:46 BoogieIcfgContainer [2025-02-08 05:09:46,584 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:09:46,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:09:46,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:09:46,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:09:46,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:09:45" (1/3) ... [2025-02-08 05:09:46,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135138c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:09:46, skipping insertion in model container [2025-02-08 05:09:46,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:46" (2/3) ... [2025-02-08 05:09:46,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135138c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:09:46, skipping insertion in model container [2025-02-08 05:09:46,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:09:46" (3/3) ... [2025-02-08 05:09:46,590 INFO L128 eAbstractionObserver]: Analyzing ICFG read_write_lock-2b.i [2025-02-08 05:09:46,600 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:09:46,601 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG read_write_lock-2b.i that has 3 procedures, 110 locations, 1 initial locations, 0 loop locations, and 14 error locations. [2025-02-08 05:09:46,601 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:09:46,652 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-08 05:09:46,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 174 transitions, 376 flow [2025-02-08 05:09:46,723 INFO L124 PetriNetUnfolderBase]: 4/170 cut-off events. [2025-02-08 05:09:46,725 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-08 05:09:46,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 170 events. 4/170 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 438 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 148. Up to 2 conditions per place. [2025-02-08 05:09:46,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 174 transitions, 376 flow [2025-02-08 05:09:46,737 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 165 transitions, 351 flow [2025-02-08 05:09:46,746 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:09:46,757 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;@448f2056, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:09:46,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2025-02-08 05:09:46,766 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:09:46,766 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-02-08 05:09:46,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:09:46,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:09:46,767 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] [2025-02-08 05:09:46,767 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr8ASSERT_VIOLATIONDATA_RACE, readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-08 05:09:46,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:09:46,772 INFO L85 PathProgramCache]: Analyzing trace with hash -52025244, now seen corresponding path program 1 times [2025-02-08 05:09:46,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:09:46,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933953224] [2025-02-08 05:09:46,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:09:46,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:09:46,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 05:09:46,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 05:09:46,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:09:46,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:09:46,931 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 05:09:46,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:09:46,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933953224] [2025-02-08 05:09:46,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933953224] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:09:46,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:09:46,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:09:46,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061324045] [2025-02-08 05:09:46,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:09:46,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:09:46,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:09:46,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:09:46,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:09:46,962 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 174 [2025-02-08 05:09:46,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 165 transitions, 351 flow. Second operand has 2 states, 2 states have (on average 145.0) internal successors, (290), 2 states have internal predecessors, (290), 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 05:09:46,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:09:46,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 174 [2025-02-08 05:09:46,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:09:47,084 INFO L124 PetriNetUnfolderBase]: 51/829 cut-off events. [2025-02-08 05:09:47,084 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2025-02-08 05:09:47,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 829 events. 51/829 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5468 event pairs, 51 based on Foata normal form. 38/718 useless extension candidates. Maximal degree in co-relation 860. Up to 96 conditions per place. [2025-02-08 05:09:47,092 INFO L140 encePairwiseOnDemand]: 158/174 looper letters, 11 selfloop transitions, 0 changer transitions 0/145 dead transitions. [2025-02-08 05:09:47,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 145 transitions, 333 flow [2025-02-08 05:09:47,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:09:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:09:47,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 315 transitions. [2025-02-08 05:09:47,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9051724137931034 [2025-02-08 05:09:47,104 INFO L175 Difference]: Start difference. First operand has 174 places, 165 transitions, 351 flow. Second operand 2 states and 315 transitions. [2025-02-08 05:09:47,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 145 transitions, 333 flow [2025-02-08 05:09:47,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 145 transitions, 320 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-02-08 05:09:47,110 INFO L231 Difference]: Finished difference. Result has 152 places, 145 transitions, 298 flow [2025-02-08 05:09:47,112 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=298, PETRI_PLACES=152, PETRI_TRANSITIONS=145} [2025-02-08 05:09:47,114 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -22 predicate places. [2025-02-08 05:09:47,114 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 145 transitions, 298 flow [2025-02-08 05:09:47,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 145.0) internal successors, (290), 2 states have internal predecessors, (290), 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 05:09:47,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:09:47,114 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] [2025-02-08 05:09:47,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:09:47,115 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr1ASSERT_VIOLATIONDATA_RACE === [readerErr8ASSERT_VIOLATIONDATA_RACE, readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-08 05:09:47,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:09:47,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1409538666, now seen corresponding path program 1 times [2025-02-08 05:09:47,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:09:47,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786685082] [2025-02-08 05:09:47,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:09:47,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:09:47,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 05:09:47,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 05:09:47,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:09:47,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:09:47,163 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 05:09:47,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:09:47,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786685082] [2025-02-08 05:09:47,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786685082] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:09:47,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:09:47,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:09:47,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832947848] [2025-02-08 05:09:47,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:09:47,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:09:47,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:09:47,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:09:47,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:09:47,190 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 174 [2025-02-08 05:09:47,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 145 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 05:09:47,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:09:47,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 174 [2025-02-08 05:09:47,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:09:47,799 INFO L124 PetriNetUnfolderBase]: 1206/5279 cut-off events. [2025-02-08 05:09:47,799 INFO L125 PetriNetUnfolderBase]: For 55/82 co-relation queries the response was YES. [2025-02-08 05:09:47,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7321 conditions, 5279 events. 1206/5279 cut-off events. For 55/82 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 56423 event pairs, 758 based on Foata normal form. 0/4328 useless extension candidates. Maximal degree in co-relation 7318. Up to 1501 conditions per place. [2025-02-08 05:09:47,844 INFO L140 encePairwiseOnDemand]: 165/174 looper letters, 26 selfloop transitions, 8 changer transitions 0/158 dead transitions. [2025-02-08 05:09:47,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 158 transitions, 396 flow [2025-02-08 05:09:47,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:09:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:09:47,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2025-02-08 05:09:47,849 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8371647509578544 [2025-02-08 05:09:47,851 INFO L175 Difference]: Start difference. First operand has 152 places, 145 transitions, 298 flow. Second operand 3 states and 437 transitions. [2025-02-08 05:09:47,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 158 transitions, 396 flow [2025-02-08 05:09:47,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 158 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:09:47,854 INFO L231 Difference]: Finished difference. Result has 156 places, 152 transitions, 360 flow [2025-02-08 05:09:47,854 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=156, PETRI_TRANSITIONS=152} [2025-02-08 05:09:47,855 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -18 predicate places. [2025-02-08 05:09:47,855 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 152 transitions, 360 flow [2025-02-08 05:09:47,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 05:09:47,857 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:09:47,857 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] [2025-02-08 05:09:47,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:09:47,857 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr8ASSERT_VIOLATIONDATA_RACE, readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-08 05:09:47,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:09:47,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2117369243, now seen corresponding path program 1 times [2025-02-08 05:09:47,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:09:47,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243549537] [2025-02-08 05:09:47,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:09:47,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:09:47,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-08 05:09:47,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-08 05:09:47,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:09:47,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:09:47,936 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 05:09:47,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:09:47,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243549537] [2025-02-08 05:09:47,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243549537] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:09:47,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:09:47,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:09:47,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772733838] [2025-02-08 05:09:47,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:09:47,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:09:47,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:09:47,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:09:47,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:09:47,949 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 174 [2025-02-08 05:09:47,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 152 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 05:09:47,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:09:47,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 174 [2025-02-08 05:09:47,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:09:48,602 INFO L124 PetriNetUnfolderBase]: 844/6472 cut-off events. [2025-02-08 05:09:48,602 INFO L125 PetriNetUnfolderBase]: For 173/226 co-relation queries the response was YES. [2025-02-08 05:09:48,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8437 conditions, 6472 events. 844/6472 cut-off events. For 173/226 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 77485 event pairs, 526 based on Foata normal form. 2/5150 useless extension candidates. Maximal degree in co-relation 8432. Up to 815 conditions per place. [2025-02-08 05:09:48,644 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 19 selfloop transitions, 7 changer transitions 0/161 dead transitions. [2025-02-08 05:09:48,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 161 transitions, 434 flow [2025-02-08 05:09:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:09:48,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:09:48,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2025-02-08 05:09:48,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2025-02-08 05:09:48,646 INFO L175 Difference]: Start difference. First operand has 156 places, 152 transitions, 360 flow. Second operand 3 states and 441 transitions. [2025-02-08 05:09:48,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 161 transitions, 434 flow [2025-02-08 05:09:48,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 161 transitions, 418 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:09:48,653 INFO L231 Difference]: Finished difference. Result has 158 places, 158 transitions, 398 flow [2025-02-08 05:09:48,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=158, PETRI_TRANSITIONS=158} [2025-02-08 05:09:48,653 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -16 predicate places. [2025-02-08 05:09:48,653 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 158 transitions, 398 flow [2025-02-08 05:09:48,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 05:09:48,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:09:48,654 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] [2025-02-08 05:09:48,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:09:48,654 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr5ASSERT_VIOLATIONDATA_RACE === [readerErr8ASSERT_VIOLATIONDATA_RACE, readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-08 05:09:48,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:09:48,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1474924807, now seen corresponding path program 1 times [2025-02-08 05:09:48,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:09:48,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092434991] [2025-02-08 05:09:48,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:09:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:09:48,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-08 05:09:48,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-08 05:09:48,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:09:48,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:09:48,684 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 05:09:48,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:09:48,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092434991] [2025-02-08 05:09:48,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092434991] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:09:48,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:09:48,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:09:48,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795727621] [2025-02-08 05:09:48,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:09:48,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:09:48,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:09:48,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:09:48,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:09:48,704 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 174 [2025-02-08 05:09:48,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 158 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 05:09:48,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:09:48,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 174 [2025-02-08 05:09:48,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:09:51,075 INFO L124 PetriNetUnfolderBase]: 7405/30326 cut-off events. [2025-02-08 05:09:51,076 INFO L125 PetriNetUnfolderBase]: For 6954/7680 co-relation queries the response was YES. [2025-02-08 05:09:51,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50564 conditions, 30326 events. 7405/30326 cut-off events. For 6954/7680 co-relation queries the response was YES. Maximal size of possible extension queue 1236. Compared 427823 event pairs, 2484 based on Foata normal form. 36/24661 useless extension candidates. Maximal degree in co-relation 50558. Up to 6424 conditions per place. [2025-02-08 05:09:51,280 INFO L140 encePairwiseOnDemand]: 160/174 looper letters, 45 selfloop transitions, 15 changer transitions 0/185 dead transitions. [2025-02-08 05:09:51,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 185 transitions, 618 flow [2025-02-08 05:09:51,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:09:51,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:09:51,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2025-02-08 05:09:51,282 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8390804597701149 [2025-02-08 05:09:51,282 INFO L175 Difference]: Start difference. First operand has 158 places, 158 transitions, 398 flow. Second operand 3 states and 438 transitions. [2025-02-08 05:09:51,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 185 transitions, 618 flow [2025-02-08 05:09:51,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 185 transitions, 598 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:09:51,301 INFO L231 Difference]: Finished difference. Result has 160 places, 173 transitions, 534 flow [2025-02-08 05:09:51,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=160, PETRI_TRANSITIONS=173} [2025-02-08 05:09:51,301 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -14 predicate places. [2025-02-08 05:09:51,301 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 173 transitions, 534 flow [2025-02-08 05:09:51,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 05:09:51,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:09:51,302 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] [2025-02-08 05:09:51,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:09:51,302 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr1ASSERT_VIOLATIONDATA_RACE === [readerErr8ASSERT_VIOLATIONDATA_RACE, readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-08 05:09:51,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:09:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash 533898614, now seen corresponding path program 1 times [2025-02-08 05:09:51,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:09:51,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343324223] [2025-02-08 05:09:51,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:09:51,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:09:51,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-08 05:09:51,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-08 05:09:51,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:09:51,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:09:51,422 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 05:09:51,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:09:51,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343324223] [2025-02-08 05:09:51,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343324223] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:09:51,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:09:51,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:09:51,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439743896] [2025-02-08 05:09:51,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:09:51,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 05:09:51,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:09:51,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 05:09:51,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:09:51,443 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 174 [2025-02-08 05:09:51,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 173 transitions, 534 flow. Second operand has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 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 05:09:51,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:09:51,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 174 [2025-02-08 05:09:51,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:09:54,912 INFO L124 PetriNetUnfolderBase]: 10151/44991 cut-off events. [2025-02-08 05:09:54,913 INFO L125 PetriNetUnfolderBase]: For 12580/19087 co-relation queries the response was YES. [2025-02-08 05:09:55,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76602 conditions, 44991 events. 10151/44991 cut-off events. For 12580/19087 co-relation queries the response was YES. Maximal size of possible extension queue 1817. Compared 691610 event pairs, 2356 based on Foata normal form. 77/37116 useless extension candidates. Maximal degree in co-relation 76595. Up to 6509 conditions per place. [2025-02-08 05:09:55,266 INFO L140 encePairwiseOnDemand]: 164/174 looper letters, 31 selfloop transitions, 17 changer transitions 0/201 dead transitions. [2025-02-08 05:09:55,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 201 transitions, 719 flow [2025-02-08 05:09:55,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:09:55,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 05:09:55,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 735 transitions. [2025-02-08 05:09:55,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2025-02-08 05:09:55,268 INFO L175 Difference]: Start difference. First operand has 160 places, 173 transitions, 534 flow. Second operand 5 states and 735 transitions. [2025-02-08 05:09:55,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 201 transitions, 719 flow [2025-02-08 05:09:55,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 201 transitions, 689 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:09:55,292 INFO L231 Difference]: Finished difference. Result has 165 places, 187 transitions, 627 flow [2025-02-08 05:09:55,292 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=627, PETRI_PLACES=165, PETRI_TRANSITIONS=187} [2025-02-08 05:09:55,293 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2025-02-08 05:09:55,293 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 187 transitions, 627 flow [2025-02-08 05:09:55,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 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 05:09:55,293 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:09:55,293 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] [2025-02-08 05:09:55,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:09:55,293 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting writerErr1ASSERT_VIOLATIONDATA_RACE === [readerErr8ASSERT_VIOLATIONDATA_RACE, readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-08 05:09:55,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:09:55,294 INFO L85 PathProgramCache]: Analyzing trace with hash -710046260, now seen corresponding path program 2 times [2025-02-08 05:09:55,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:09:55,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096236764] [2025-02-08 05:09:55,294 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:09:55,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:09:55,304 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 1 equivalence classes. [2025-02-08 05:09:55,316 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-08 05:09:55,316 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:09:55,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:09:55,355 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 05:09:55,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:09:55,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096236764] [2025-02-08 05:09:55,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096236764] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:09:55,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:09:55,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:09:55,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255983525] [2025-02-08 05:09:55,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:09:55,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:09:55,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:09:55,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:09:55,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:09:55,362 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 174 [2025-02-08 05:09:55,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 187 transitions, 627 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 05:09:55,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:09:55,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 174 [2025-02-08 05:09:55,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:09:56,744 INFO L124 PetriNetUnfolderBase]: 2626/18284 cut-off events. [2025-02-08 05:09:56,745 INFO L125 PetriNetUnfolderBase]: For 4127/5017 co-relation queries the response was YES. [2025-02-08 05:09:56,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29075 conditions, 18284 events. 2626/18284 cut-off events. For 4127/5017 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 263443 event pairs, 808 based on Foata normal form. 141/15058 useless extension candidates. Maximal degree in co-relation 29066. Up to 2621 conditions per place. [2025-02-08 05:09:56,887 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 19 selfloop transitions, 7 changer transitions 0/182 dead transitions. [2025-02-08 05:09:56,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 182 transitions, 637 flow [2025-02-08 05:09:56,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:09:56,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:09:56,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2025-02-08 05:09:56,889 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8544061302681992 [2025-02-08 05:09:56,889 INFO L175 Difference]: Start difference. First operand has 165 places, 187 transitions, 627 flow. Second operand 3 states and 446 transitions. [2025-02-08 05:09:56,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 182 transitions, 637 flow [2025-02-08 05:09:56,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 182 transitions, 623 flow, removed 3 selfloop flow, removed 1 redundant places. [2025-02-08 05:09:56,896 INFO L231 Difference]: Finished difference. Result has 166 places, 177 transitions, 569 flow [2025-02-08 05:09:56,897 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=569, PETRI_PLACES=166, PETRI_TRANSITIONS=177} [2025-02-08 05:09:56,898 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -8 predicate places. [2025-02-08 05:09:56,898 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 177 transitions, 569 flow [2025-02-08 05:09:56,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 05:09:56,899 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:09:56,899 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] [2025-02-08 05:09:56,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:09:56,899 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr8ASSERT_VIOLATIONDATA_RACE, readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-08 05:09:56,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:09:56,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1682966734, now seen corresponding path program 1 times [2025-02-08 05:09:56,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:09:56,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354208153] [2025-02-08 05:09:56,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:09:56,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:09:56,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-08 05:09:56,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-08 05:09:56,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:09:56,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:09:56,927 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 05:09:56,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:09:56,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354208153] [2025-02-08 05:09:56,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354208153] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:09:56,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:09:56,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:09:56,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116395338] [2025-02-08 05:09:56,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:09:56,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:09:56,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:09:56,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:09:56,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:09:56,945 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 174 [2025-02-08 05:09:56,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 177 transitions, 569 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 05:09:56,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:09:56,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 174 [2025-02-08 05:09:56,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:09:59,230 INFO L124 PetriNetUnfolderBase]: 5683/31602 cut-off events. [2025-02-08 05:09:59,230 INFO L125 PetriNetUnfolderBase]: For 12531/13700 co-relation queries the response was YES. [2025-02-08 05:09:59,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53946 conditions, 31602 events. 5683/31602 cut-off events. For 12531/13700 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 483873 event pairs, 2140 based on Foata normal form. 3/25693 useless extension candidates. Maximal degree in co-relation 53937. Up to 3941 conditions per place. [2025-02-08 05:09:59,599 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 33 selfloop transitions, 5 changer transitions 0/189 dead transitions. [2025-02-08 05:09:59,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 189 transitions, 699 flow [2025-02-08 05:09:59,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:09:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:09:59,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2025-02-08 05:09:59,601 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8390804597701149 [2025-02-08 05:09:59,601 INFO L175 Difference]: Start difference. First operand has 166 places, 177 transitions, 569 flow. Second operand 3 states and 438 transitions. [2025-02-08 05:09:59,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 189 transitions, 699 flow [2025-02-08 05:09:59,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 189 transitions, 679 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:09:59,616 INFO L231 Difference]: Finished difference. Result has 168 places, 181 transitions, 593 flow [2025-02-08 05:09:59,616 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=593, PETRI_PLACES=168, PETRI_TRANSITIONS=181} [2025-02-08 05:09:59,619 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -6 predicate places. [2025-02-08 05:09:59,619 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 181 transitions, 593 flow [2025-02-08 05:09:59,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 05:09:59,619 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:09:59,619 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] [2025-02-08 05:09:59,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:09:59,620 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting writerErr1ASSERT_VIOLATIONDATA_RACE === [readerErr8ASSERT_VIOLATIONDATA_RACE, readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-08 05:09:59,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:09:59,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1681091663, now seen corresponding path program 1 times [2025-02-08 05:09:59,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:09:59,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861171825] [2025-02-08 05:09:59,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:09:59,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:09:59,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-08 05:09:59,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-08 05:09:59,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:09:59,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:09:59,664 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 05:09:59,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:09:59,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861171825] [2025-02-08 05:09:59,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861171825] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:09:59,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:09:59,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:09:59,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680553760] [2025-02-08 05:09:59,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:09:59,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:09:59,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:09:59,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:09:59,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:09:59,691 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 174 [2025-02-08 05:09:59,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 181 transitions, 593 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 05:09:59,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:09:59,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 174 [2025-02-08 05:09:59,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:03,116 INFO L124 PetriNetUnfolderBase]: 6966/40668 cut-off events. [2025-02-08 05:10:03,117 INFO L125 PetriNetUnfolderBase]: For 17634/22344 co-relation queries the response was YES. [2025-02-08 05:10:03,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71576 conditions, 40668 events. 6966/40668 cut-off events. For 17634/22344 co-relation queries the response was YES. Maximal size of possible extension queue 1800. Compared 654323 event pairs, 2442 based on Foata normal form. 115/33498 useless extension candidates. Maximal degree in co-relation 71566. Up to 6960 conditions per place. [2025-02-08 05:10:03,439 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 43 selfloop transitions, 12 changer transitions 0/194 dead transitions. [2025-02-08 05:10:03,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 194 transitions, 765 flow [2025-02-08 05:10:03,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:10:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:10:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2025-02-08 05:10:03,441 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8295019157088123 [2025-02-08 05:10:03,442 INFO L175 Difference]: Start difference. First operand has 168 places, 181 transitions, 593 flow. Second operand 3 states and 433 transitions. [2025-02-08 05:10:03,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 194 transitions, 765 flow [2025-02-08 05:10:03,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 194 transitions, 755 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:10:03,486 INFO L231 Difference]: Finished difference. Result has 170 places, 191 transitions, 705 flow [2025-02-08 05:10:03,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=705, PETRI_PLACES=170, PETRI_TRANSITIONS=191} [2025-02-08 05:10:03,488 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -4 predicate places. [2025-02-08 05:10:03,488 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 191 transitions, 705 flow [2025-02-08 05:10:03,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 05:10:03,488 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:03,489 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] [2025-02-08 05:10:03,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:10:03,489 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr8ASSERT_VIOLATIONDATA_RACE, readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-08 05:10:03,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:03,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2109023326, now seen corresponding path program 1 times [2025-02-08 05:10:03,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:03,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421272585] [2025-02-08 05:10:03,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:03,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:03,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-08 05:10:03,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 05:10:03,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:03,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:03,518 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 05:10:03,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:03,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421272585] [2025-02-08 05:10:03,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421272585] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:03,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:03,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:10:03,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457654473] [2025-02-08 05:10:03,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:03,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:10:03,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:03,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:10:03,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:10:03,533 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 174 [2025-02-08 05:10:03,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 191 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 05:10:03,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:03,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 174 [2025-02-08 05:10:03,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:05,411 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][201], [75#L708-2true, 172#L718-1true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), Black: 198#true, 186#true, 173#L699-1true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 226#(= |#race~y~0| 0), 184#true, Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), 142#L700-3true, Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:05,412 INFO L294 olderBase$Statistics]: this new event has 81 ancestors and is cut-off event [2025-02-08 05:10:05,412 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2025-02-08 05:10:05,412 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2025-02-08 05:10:05,412 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2025-02-08 05:10:05,615 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][144], [75#L708-2true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), 172#L718-1true, 44#L700-4true, Black: 198#true, 186#true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), 69#L700-3true, Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:05,615 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2025-02-08 05:10:05,615 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2025-02-08 05:10:05,615 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2025-02-08 05:10:05,615 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2025-02-08 05:10:05,633 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][144], [75#L708-2true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), 172#L718-1true, 186#true, Black: 198#true, 219#true, 136#L700-4true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), 142#L700-3true, Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:05,633 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2025-02-08 05:10:05,633 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2025-02-08 05:10:05,634 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2025-02-08 05:10:05,634 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2025-02-08 05:10:05,655 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][201], [75#L708-2true, 172#L718-1true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), Black: 198#true, 186#true, 173#L699-1true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 48#L700true, 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:05,655 INFO L294 olderBase$Statistics]: this new event has 83 ancestors and is cut-off event [2025-02-08 05:10:05,655 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2025-02-08 05:10:05,655 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2025-02-08 05:10:05,655 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2025-02-08 05:10:05,715 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][200], [75#L708-2true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), 172#L718-1true, 131#L699-1true, 186#true, Black: 198#true, 153#writerErr0ASSERT_VIOLATIONDATA_RACEtrue, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:05,715 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,715 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,715 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,715 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,826 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][144], [75#L708-2true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), 172#L718-1true, 37#L700true, 44#L700-4true, 186#true, Black: 198#true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:05,826 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,826 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,826 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,826 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,869 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][144], [75#L708-2true, 172#L718-1true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), 186#true, Black: 198#true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), 136#L700-4true, Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 48#L700true, 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:05,869 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,870 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,870 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,870 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2025-02-08 05:10:05,921 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][144], [75#L708-2true, 172#L718-1true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), 44#L700-4true, 186#true, Black: 198#true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 58#L700-1true, 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:05,922 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2025-02-08 05:10:05,922 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2025-02-08 05:10:05,922 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2025-02-08 05:10:05,922 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2025-02-08 05:10:05,937 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][144], [75#L708-2true, 172#L718-1true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), 44#L700-4true, 186#true, Black: 198#true, 153#writerErr0ASSERT_VIOLATIONDATA_RACEtrue, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:05,937 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2025-02-08 05:10:05,937 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2025-02-08 05:10:05,937 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2025-02-08 05:10:05,937 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2025-02-08 05:10:06,211 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][144], [75#L708-2true, 172#L718-1true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), 44#L700-4true, Black: 198#true, 186#true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 25#L701true, 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:06,211 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2025-02-08 05:10:06,211 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2025-02-08 05:10:06,211 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2025-02-08 05:10:06,211 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2025-02-08 05:10:06,747 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L708-6-->L708-4: Formula: (= |v_#race~x~0_3| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_3|} AuxVars[] AssignedVars[#race~x~0][144], [75#L708-2true, Black: 195#(= |writerThread1of1ForFork2_#t~nondet7#1| |#race~w~0|), 44#L700-4true, 186#true, Black: 198#true, 43#L720true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 160#L708-4true, Black: 216#(= |readerThread1of1ForFork0_#t~nondet8#1| |#race~y~0|), 226#(= |#race~y~0| 0), 184#true, Black: 221#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|)]) [2025-02-08 05:10:06,747 INFO L294 olderBase$Statistics]: this new event has 91 ancestors and is cut-off event [2025-02-08 05:10:06,747 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2025-02-08 05:10:06,747 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2025-02-08 05:10:06,747 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2025-02-08 05:10:07,219 INFO L124 PetriNetUnfolderBase]: 9115/53693 cut-off events. [2025-02-08 05:10:07,219 INFO L125 PetriNetUnfolderBase]: For 30407/34135 co-relation queries the response was YES. [2025-02-08 05:10:07,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98678 conditions, 53693 events. 9115/53693 cut-off events. For 30407/34135 co-relation queries the response was YES. Maximal size of possible extension queue 2438. Compared 905708 event pairs, 1957 based on Foata normal form. 247/45318 useless extension candidates. Maximal degree in co-relation 98667. Up to 7232 conditions per place. [2025-02-08 05:10:07,918 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 39 selfloop transitions, 7 changer transitions 0/209 dead transitions. [2025-02-08 05:10:07,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 209 transitions, 875 flow [2025-02-08 05:10:07,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:10:07,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:10:07,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2025-02-08 05:10:07,920 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8505747126436781 [2025-02-08 05:10:07,920 INFO L175 Difference]: Start difference. First operand has 170 places, 191 transitions, 705 flow. Second operand 3 states and 444 transitions. [2025-02-08 05:10:07,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 209 transitions, 875 flow [2025-02-08 05:10:07,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 209 transitions, 835 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-02-08 05:10:07,988 INFO L231 Difference]: Finished difference. Result has 172 places, 197 transitions, 727 flow [2025-02-08 05:10:07,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=727, PETRI_PLACES=172, PETRI_TRANSITIONS=197} [2025-02-08 05:10:07,989 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -2 predicate places. [2025-02-08 05:10:07,989 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 197 transitions, 727 flow [2025-02-08 05:10:07,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 05:10:07,990 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:07,990 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] [2025-02-08 05:10:07,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 05:10:07,990 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr8ASSERT_VIOLATIONDATA_RACE, readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-08 05:10:07,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:07,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1913283129, now seen corresponding path program 1 times [2025-02-08 05:10:07,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:07,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693861016] [2025-02-08 05:10:07,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:07,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:07,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-08 05:10:08,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 05:10:08,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:08,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:08,004 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:10:08,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-08 05:10:08,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 05:10:08,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:08,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:08,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:10:08,026 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:10:08,026 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2025-02-08 05:10:08,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2025-02-08 05:10:08,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2025-02-08 05:10:08,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2025-02-08 05:10:08,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2025-02-08 05:10:08,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 05:10:08,031 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:08,056 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 05:10:08,056 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 05:10:08,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 05:10:08 BasicIcfg [2025-02-08 05:10:08,062 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 05:10:08,062 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 05:10:08,062 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 05:10:08,063 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 05:10:08,063 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:09:46" (3/4) ... [2025-02-08 05:10:08,064 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-08 05:10:08,109 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 11. [2025-02-08 05:10:08,144 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 05:10:08,144 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 05:10:08,144 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 05:10:08,145 INFO L158 Benchmark]: Toolchain (without parser) took 22307.07ms. Allocated memory was 142.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 105.4MB in the beginning and 4.7GB in the end (delta: -4.6GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2025-02-08 05:10:08,146 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:08,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.75ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 85.7MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:10:08,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.39ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 83.7MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:10:08,147 INFO L158 Benchmark]: Boogie Preprocessor took 13.90ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 82.8MB in the end (delta: 908.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:08,148 INFO L158 Benchmark]: IcfgBuilder took 407.46ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 61.4MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:10:08,148 INFO L158 Benchmark]: TraceAbstraction took 21476.48ms. Allocated memory was 142.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 60.5MB in the beginning and 4.7GB in the end (delta: -4.7GB). Peak memory consumption was 968.6MB. Max. memory is 16.1GB. [2025-02-08 05:10:08,149 INFO L158 Benchmark]: Witness Printer took 82.12ms. Allocated memory is still 5.8GB. Free memory was 4.7GB in the beginning and 4.7GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:10:08,150 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.75ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 85.7MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.39ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 83.7MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.90ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 82.8MB in the end (delta: 908.8kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 407.46ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 61.4MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21476.48ms. Allocated memory was 142.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 60.5MB in the beginning and 4.7GB in the end (delta: -4.7GB). Peak memory consumption was 968.6MB. Max. memory is 16.1GB. * Witness Printer took 82.12ms. Allocated memory is still 5.8GB. Free memory was 4.7GB in the beginning and 4.7GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L714] 0 pthread_t t1, t2, t3, t4; VAL [r=0, w=0, x=0, y=0] [L715] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, t1=-1, w=0, x=0, y=0] [L716] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, t1=-1, t2=0, w=0, x=0, y=0] [L698] CALL 1 __VERIFIER_atomic_take_write_lock() [L690] EXPR 1 w==0 [L690] EXPR 1 w==0 && r==0 [L690] EXPR 1 r==0 [L690] EXPR 1 w==0 && r==0 [L690] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L690] RET 1 assume_abort_if_not(w==0 && r==0) [L691] 1 w = 1 [L698] RET 1 __VERIFIER_atomic_take_write_lock() [L699] 1 x = 3 VAL [\old(arg)={0:0}, arg={0:0}, r=0, w=1, x=3, y=0] [L700] 1 w = 0 VAL [\old(arg)={0:0}, arg={0:0}, r=0, w=0, x=3, y=0] [L704] 2 int l; VAL [\old(arg)={0:0}, arg={0:0}, r=0, w=0, x=3, y=0] [L705] CALL 2 __VERIFIER_atomic_take_read_lock() [L694] EXPR 2 w==0 [L694] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L694] RET 2 assume_abort_if_not(w==0) [L695] EXPR 2 r+1 [L695] 2 r = r+1 [L705] RET 2 __VERIFIER_atomic_take_read_lock() [L700] 1 w = 0 VAL [\old(arg)={0:0}, arg={0:0}, r=1, w=0, x=3, y=0] Now there is a data race on ~w~0 between C: w==0 [694] and C: w = 0 [700] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 236 locations, 46 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: 21.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 20.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 49 mSDtfsCounter, 421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=727occurred in iteration=9, InterpolantAutomatonStates: 28, 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, 0.4s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 RESULT: Ultimate proved your program to be incorrect! [2025-02-08 05:10:08,174 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)