./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:15:27,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:15:27,640 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 11:15:27,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:15:27,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:15:27,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:15:27,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:15:27,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:15:27,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:15:27,667 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:15:27,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:15:27,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:15:27,667 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:15:27,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:15:27,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:15:27,667 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:15:27,668 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:15:27,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:15:27,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:15:27,669 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 11:15:27,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 11:15:27,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:15:27,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:15:27,669 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:15:27,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:15:27,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:15:27,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:15:27,669 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2025-03-17 11:15:27,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:15:27,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:15:27,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:15:27,897 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:15:27,897 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:15:27,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2025-03-17 11:15:29,023 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3909e2d65/676dd17bbfab4a21b5e3cb012f95714c/FLAGdabb31504 [2025-03-17 11:15:29,292 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:15:29,292 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2025-03-17 11:15:29,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3909e2d65/676dd17bbfab4a21b5e3cb012f95714c/FLAGdabb31504 [2025-03-17 11:15:29,591 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3909e2d65/676dd17bbfab4a21b5e3cb012f95714c [2025-03-17 11:15:29,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:15:29,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:15:29,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:15:29,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:15:29,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:15:29,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:15:29" (1/1) ... [2025-03-17 11:15:29,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a45caa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:29, skipping insertion in model container [2025-03-17 11:15:29,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:15:29" (1/1) ... [2025-03-17 11:15:29,622 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:15:29,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:15:29,947 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:15:29,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:15:30,016 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:15:30,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30 WrapperNode [2025-03-17 11:15:30,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:15:30,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:15:30,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:15:30,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:15:30,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,052 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 274 [2025-03-17 11:15:30,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:15:30,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:15:30,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:15:30,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:15:30,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,068 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:15:30,074 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:15:30,074 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:15:30,074 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:15:30,075 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (1/1) ... [2025-03-17 11:15:30,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:15:30,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:15:30,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 11:15:30,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 11:15:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-17 11:15:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 11:15:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 11:15:30,127 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 11:15:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 11:15:30,127 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 11:15:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 11:15:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:15:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 11:15:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:15:30,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:15:30,130 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 11:15:30,271 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:15:30,273 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:15:30,645 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 11:15:30,646 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:15:30,682 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:15:30,684 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:15:30,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:15:30 BoogieIcfgContainer [2025-03-17 11:15:30,684 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:15:30,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:15:30,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:15:30,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:15:30,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:15:29" (1/3) ... [2025-03-17 11:15:30,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea6b50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:15:30, skipping insertion in model container [2025-03-17 11:15:30,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:15:30" (2/3) ... [2025-03-17 11:15:30,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea6b50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:15:30, skipping insertion in model container [2025-03-17 11:15:30,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:15:30" (3/3) ... [2025-03-17 11:15:30,691 INFO L128 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2025-03-17 11:15:30,703 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:15:30,705 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG arithmetic_prog_ok.i that has 3 procedures, 369 locations, 1 initial locations, 4 loop locations, and 15 error locations. [2025-03-17 11:15:30,705 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 11:15:30,810 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 11:15:30,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 375 places, 377 transitions, 768 flow [2025-03-17 11:15:30,961 INFO L124 PetriNetUnfolderBase]: 9/375 cut-off events. [2025-03-17 11:15:30,962 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 11:15:30,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 375 events. 9/375 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 293 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 295. Up to 3 conditions per place. [2025-03-17 11:15:30,969 INFO L82 GeneralOperation]: Start removeDead. Operand has 375 places, 377 transitions, 768 flow [2025-03-17 11:15:30,973 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 362 places, 361 transitions, 734 flow [2025-03-17 11:15:30,985 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:15:30,996 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;@4e3582e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:15:30,996 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-03-17 11:15:31,041 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:15:31,041 INFO L124 PetriNetUnfolderBase]: 0/242 cut-off events. [2025-03-17 11:15:31,041 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:15:31,042 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:31,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:31,043 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:31,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:31,050 INFO L85 PathProgramCache]: Analyzing trace with hash 370074848, now seen corresponding path program 1 times [2025-03-17 11:15:31,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:31,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765375672] [2025-03-17 11:15:31,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:31,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 242 statements into 1 equivalence classes. [2025-03-17 11:15:31,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 242 of 242 statements. [2025-03-17 11:15:31,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:31,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:31,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:31,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:31,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765375672] [2025-03-17 11:15:31,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765375672] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:31,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:31,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:15:31,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535948973] [2025-03-17 11:15:31,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:31,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:31,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:31,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:31,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:31,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 347 out of 377 [2025-03-17 11:15:31,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 361 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 348.3333333333333) internal successors, (1045), 3 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:31,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:31,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 347 of 377 [2025-03-17 11:15:31,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:31,723 INFO L124 PetriNetUnfolderBase]: 89/653 cut-off events. [2025-03-17 11:15:31,724 INFO L125 PetriNetUnfolderBase]: For 56/62 co-relation queries the response was YES. [2025-03-17 11:15:31,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 653 events. 89/653 cut-off events. For 56/62 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2070 event pairs, 53 based on Foata normal form. 0/591 useless extension candidates. Maximal degree in co-relation 517. Up to 163 conditions per place. [2025-03-17 11:15:31,732 INFO L140 encePairwiseOnDemand]: 372/377 looper letters, 21 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2025-03-17 11:15:31,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 358 transitions, 774 flow [2025-03-17 11:15:31,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:31,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1067 transitions. [2025-03-17 11:15:31,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9434129089301503 [2025-03-17 11:15:31,749 INFO L175 Difference]: Start difference. First operand has 362 places, 361 transitions, 734 flow. Second operand 3 states and 1067 transitions. [2025-03-17 11:15:31,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 358 transitions, 774 flow [2025-03-17 11:15:31,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 358 transitions, 766 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 11:15:31,782 INFO L231 Difference]: Finished difference. Result has 359 places, 358 transitions, 724 flow [2025-03-17 11:15:31,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=359, PETRI_TRANSITIONS=358} [2025-03-17 11:15:31,787 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -3 predicate places. [2025-03-17 11:15:31,787 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 358 transitions, 724 flow [2025-03-17 11:15:31,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 348.3333333333333) internal successors, (1045), 3 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:31,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:31,788 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:31,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:15:31,788 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:31,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:31,789 INFO L85 PathProgramCache]: Analyzing trace with hash 716444836, now seen corresponding path program 1 times [2025-03-17 11:15:31,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:31,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122441479] [2025-03-17 11:15:31,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:31,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:31,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 247 statements into 1 equivalence classes. [2025-03-17 11:15:31,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 247 of 247 statements. [2025-03-17 11:15:31,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:31,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:31,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:31,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:31,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122441479] [2025-03-17 11:15:31,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122441479] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:31,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:31,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:15:31,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024116173] [2025-03-17 11:15:31,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:31,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:31,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:31,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:31,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:31,989 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 377 [2025-03-17 11:15:31,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 358 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 349.3333333333333) internal successors, (1048), 3 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:31,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:31,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 377 [2025-03-17 11:15:31,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:32,087 INFO L124 PetriNetUnfolderBase]: 75/700 cut-off events. [2025-03-17 11:15:32,088 INFO L125 PetriNetUnfolderBase]: For 18/20 co-relation queries the response was YES. [2025-03-17 11:15:32,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 839 conditions, 700 events. 75/700 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2519 event pairs, 33 based on Foata normal form. 0/622 useless extension candidates. Maximal degree in co-relation 590. Up to 128 conditions per place. [2025-03-17 11:15:32,091 INFO L140 encePairwiseOnDemand]: 374/377 looper letters, 20 selfloop transitions, 2 changer transitions 0/357 dead transitions. [2025-03-17 11:15:32,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 357 transitions, 766 flow [2025-03-17 11:15:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:32,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:32,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1067 transitions. [2025-03-17 11:15:32,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9434129089301503 [2025-03-17 11:15:32,096 INFO L175 Difference]: Start difference. First operand has 359 places, 358 transitions, 724 flow. Second operand 3 states and 1067 transitions. [2025-03-17 11:15:32,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 357 transitions, 766 flow [2025-03-17 11:15:32,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 357 transitions, 762 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:15:32,103 INFO L231 Difference]: Finished difference. Result has 358 places, 357 transitions, 722 flow [2025-03-17 11:15:32,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=358, PETRI_TRANSITIONS=357} [2025-03-17 11:15:32,104 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -4 predicate places. [2025-03-17 11:15:32,105 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 357 transitions, 722 flow [2025-03-17 11:15:32,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 349.3333333333333) internal successors, (1048), 3 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:32,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:32,106 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:32,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 11:15:32,106 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:32,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash -245128959, now seen corresponding path program 1 times [2025-03-17 11:15:32,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:32,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672302986] [2025-03-17 11:15:32,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:32,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:32,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 261 statements into 1 equivalence classes. [2025-03-17 11:15:32,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 261 of 261 statements. [2025-03-17 11:15:32,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:32,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:32,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:32,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672302986] [2025-03-17 11:15:32,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672302986] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:32,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:32,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:15:32,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032067551] [2025-03-17 11:15:32,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:32,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:32,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:32,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:32,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:32,326 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 377 [2025-03-17 11:15:32,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 357 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 346.6666666666667) internal successors, (1040), 3 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:32,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:32,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 377 [2025-03-17 11:15:32,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:32,526 INFO L124 PetriNetUnfolderBase]: 207/1202 cut-off events. [2025-03-17 11:15:32,527 INFO L125 PetriNetUnfolderBase]: For 29/38 co-relation queries the response was YES. [2025-03-17 11:15:32,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1622 conditions, 1202 events. 207/1202 cut-off events. For 29/38 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6096 event pairs, 55 based on Foata normal form. 1/1072 useless extension candidates. Maximal degree in co-relation 1368. Up to 266 conditions per place. [2025-03-17 11:15:32,535 INFO L140 encePairwiseOnDemand]: 363/377 looper letters, 37 selfloop transitions, 10 changer transitions 0/377 dead transitions. [2025-03-17 11:15:32,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 377 transitions, 858 flow [2025-03-17 11:15:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:32,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:32,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1086 transitions. [2025-03-17 11:15:32,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9602122015915119 [2025-03-17 11:15:32,538 INFO L175 Difference]: Start difference. First operand has 358 places, 357 transitions, 722 flow. Second operand 3 states and 1086 transitions. [2025-03-17 11:15:32,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 377 transitions, 858 flow [2025-03-17 11:15:32,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 377 transitions, 854 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:15:32,545 INFO L231 Difference]: Finished difference. Result has 360 places, 367 transitions, 806 flow [2025-03-17 11:15:32,546 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=806, PETRI_PLACES=360, PETRI_TRANSITIONS=367} [2025-03-17 11:15:32,546 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -2 predicate places. [2025-03-17 11:15:32,546 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 367 transitions, 806 flow [2025-03-17 11:15:32,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 346.6666666666667) internal successors, (1040), 3 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:32,547 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:32,547 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:32,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 11:15:32,548 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:32,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:32,549 INFO L85 PathProgramCache]: Analyzing trace with hash 595584416, now seen corresponding path program 1 times [2025-03-17 11:15:32,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:32,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717165081] [2025-03-17 11:15:32,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:32,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:32,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 265 statements into 1 equivalence classes. [2025-03-17 11:15:32,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 265 of 265 statements. [2025-03-17 11:15:32,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:32,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:32,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:32,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717165081] [2025-03-17 11:15:32,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717165081] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:32,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:32,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:15:32,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421610378] [2025-03-17 11:15:32,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:32,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:32,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:32,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:32,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:32,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 377 [2025-03-17 11:15:32,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 367 transitions, 806 flow. Second operand has 3 states, 3 states have (on average 357.6666666666667) internal successors, (1073), 3 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:32,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:32,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 377 [2025-03-17 11:15:32,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:32,994 INFO L124 PetriNetUnfolderBase]: 266/1801 cut-off events. [2025-03-17 11:15:32,995 INFO L125 PetriNetUnfolderBase]: For 119/121 co-relation queries the response was YES. [2025-03-17 11:15:33,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2548 conditions, 1801 events. 266/1801 cut-off events. For 119/121 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11175 event pairs, 87 based on Foata normal form. 6/1609 useless extension candidates. Maximal degree in co-relation 2027. Up to 260 conditions per place. [2025-03-17 11:15:33,008 INFO L140 encePairwiseOnDemand]: 374/377 looper letters, 24 selfloop transitions, 2 changer transitions 0/377 dead transitions. [2025-03-17 11:15:33,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 377 transitions, 879 flow [2025-03-17 11:15:33,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:33,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1095 transitions. [2025-03-17 11:15:33,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9681697612732095 [2025-03-17 11:15:33,011 INFO L175 Difference]: Start difference. First operand has 360 places, 367 transitions, 806 flow. Second operand 3 states and 1095 transitions. [2025-03-17 11:15:33,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 377 transitions, 879 flow [2025-03-17 11:15:33,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 377 transitions, 859 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:15:33,020 INFO L231 Difference]: Finished difference. Result has 361 places, 368 transitions, 798 flow [2025-03-17 11:15:33,021 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=798, PETRI_PLACES=361, PETRI_TRANSITIONS=368} [2025-03-17 11:15:33,022 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -1 predicate places. [2025-03-17 11:15:33,022 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 368 transitions, 798 flow [2025-03-17 11:15:33,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.6666666666667) internal successors, (1073), 3 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:33,023 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:33,023 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:33,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 11:15:33,024 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:33,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:33,025 INFO L85 PathProgramCache]: Analyzing trace with hash 377574692, now seen corresponding path program 1 times [2025-03-17 11:15:33,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:33,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440119439] [2025-03-17 11:15:33,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:33,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:33,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 269 statements into 1 equivalence classes. [2025-03-17 11:15:33,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 269 of 269 statements. [2025-03-17 11:15:33,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:33,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:33,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:33,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:33,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440119439] [2025-03-17 11:15:33,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440119439] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:33,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:33,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:15:33,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690327286] [2025-03-17 11:15:33,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:33,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:33,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:33,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:33,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:33,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 377 [2025-03-17 11:15:33,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 368 transitions, 798 flow. Second operand has 3 states, 3 states have (on average 351.6666666666667) internal successors, (1055), 3 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:33,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:33,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 377 [2025-03-17 11:15:33,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:33,401 INFO L124 PetriNetUnfolderBase]: 443/2130 cut-off events. [2025-03-17 11:15:33,401 INFO L125 PetriNetUnfolderBase]: For 279/326 co-relation queries the response was YES. [2025-03-17 11:15:33,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3376 conditions, 2130 events. 443/2130 cut-off events. For 279/326 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 13657 event pairs, 166 based on Foata normal form. 15/1919 useless extension candidates. Maximal degree in co-relation 2861. Up to 688 conditions per place. [2025-03-17 11:15:33,411 INFO L140 encePairwiseOnDemand]: 370/377 looper letters, 32 selfloop transitions, 10 changer transitions 0/381 dead transitions. [2025-03-17 11:15:33,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 381 transitions, 921 flow [2025-03-17 11:15:33,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:33,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:33,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1081 transitions. [2025-03-17 11:15:33,413 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9557913351016799 [2025-03-17 11:15:33,413 INFO L175 Difference]: Start difference. First operand has 361 places, 368 transitions, 798 flow. Second operand 3 states and 1081 transitions. [2025-03-17 11:15:33,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 381 transitions, 921 flow [2025-03-17 11:15:33,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 381 transitions, 919 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:15:33,419 INFO L231 Difference]: Finished difference. Result has 364 places, 376 transitions, 882 flow [2025-03-17 11:15:33,419 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=882, PETRI_PLACES=364, PETRI_TRANSITIONS=376} [2025-03-17 11:15:33,421 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, 2 predicate places. [2025-03-17 11:15:33,421 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 376 transitions, 882 flow [2025-03-17 11:15:33,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 351.6666666666667) internal successors, (1055), 3 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:33,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:33,422 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:33,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 11:15:33,422 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:33,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:33,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1720957499, now seen corresponding path program 1 times [2025-03-17 11:15:33,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:33,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431362836] [2025-03-17 11:15:33,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:33,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:33,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 270 statements into 1 equivalence classes. [2025-03-17 11:15:33,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 270 of 270 statements. [2025-03-17 11:15:33,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:33,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:33,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:33,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:33,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431362836] [2025-03-17 11:15:33,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431362836] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:33,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:33,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:15:33,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773798768] [2025-03-17 11:15:33,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:33,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:33,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:33,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:33,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:33,588 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 377 [2025-03-17 11:15:33,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 376 transitions, 882 flow. Second operand has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:33,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:33,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 377 [2025-03-17 11:15:33,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:33,721 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([791] L880-->L880-2: Formula: (= |v_#race~num~0_9| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_9|} AuxVars[] AssignedVars[#race~num~0][294], [260#L914-1true, Black: 384#true, 400#(= ~num~0 0), 391#(= thread2Thread1of1ForFork0_~j~0 0), 56#L880-2true, Black: 395#(= |thread1Thread1of1ForFork1_#t~nondet8| |#race~num~0|), 230#L894-1true, 393#true]) [2025-03-17 11:15:33,721 INFO L294 olderBase$Statistics]: this new event has 304 ancestors and is cut-off event [2025-03-17 11:15:33,721 INFO L297 olderBase$Statistics]: existing Event has 279 ancestors and is cut-off event [2025-03-17 11:15:33,722 INFO L297 olderBase$Statistics]: existing Event has 274 ancestors and is cut-off event [2025-03-17 11:15:33,722 INFO L297 olderBase$Statistics]: existing Event has 299 ancestors and is cut-off event [2025-03-17 11:15:33,859 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([791] L880-->L880-2: Formula: (= |v_#race~num~0_9| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_9|} AuxVars[] AssignedVars[#race~num~0][294], [260#L914-1true, Black: 384#true, 398#true, Black: 391#(= thread2Thread1of1ForFork0_~j~0 0), 56#L880-2true, 230#L894-1true, Black: 395#(= |thread1Thread1of1ForFork1_#t~nondet8| |#race~num~0|), 393#true]) [2025-03-17 11:15:33,860 INFO L294 olderBase$Statistics]: this new event has 346 ancestors and is cut-off event [2025-03-17 11:15:33,860 INFO L297 olderBase$Statistics]: existing Event has 326 ancestors and is cut-off event [2025-03-17 11:15:33,860 INFO L297 olderBase$Statistics]: existing Event has 321 ancestors and is cut-off event [2025-03-17 11:15:33,860 INFO L297 olderBase$Statistics]: existing Event has 321 ancestors and is cut-off event [2025-03-17 11:15:33,865 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([791] L880-->L880-2: Formula: (= |v_#race~num~0_9| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_9|} AuxVars[] AssignedVars[#race~num~0][294], [260#L914-1true, Black: 384#true, 398#true, Black: 391#(= thread2Thread1of1ForFork0_~j~0 0), 56#L880-2true, 230#L894-1true, Black: 395#(= |thread1Thread1of1ForFork1_#t~nondet8| |#race~num~0|), 393#true]) [2025-03-17 11:15:33,865 INFO L294 olderBase$Statistics]: this new event has 351 ancestors and is cut-off event [2025-03-17 11:15:33,865 INFO L297 olderBase$Statistics]: existing Event has 326 ancestors and is cut-off event [2025-03-17 11:15:33,865 INFO L297 olderBase$Statistics]: existing Event has 321 ancestors and is cut-off event [2025-03-17 11:15:33,865 INFO L297 olderBase$Statistics]: existing Event has 346 ancestors and is cut-off event [2025-03-17 11:15:33,865 INFO L297 olderBase$Statistics]: existing Event has 321 ancestors and is cut-off event [2025-03-17 11:15:33,866 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([791] L880-->L880-2: Formula: (= |v_#race~num~0_9| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_9|} AuxVars[] AssignedVars[#race~num~0][294], [260#L914-1true, Black: 384#true, 398#true, Black: 391#(= thread2Thread1of1ForFork0_~j~0 0), 250#L894-2true, 56#L880-2true, Black: 395#(= |thread1Thread1of1ForFork1_#t~nondet8| |#race~num~0|), 393#true]) [2025-03-17 11:15:33,866 INFO L294 olderBase$Statistics]: this new event has 350 ancestors and is cut-off event [2025-03-17 11:15:33,866 INFO L297 olderBase$Statistics]: existing Event has 320 ancestors and is cut-off event [2025-03-17 11:15:33,866 INFO L297 olderBase$Statistics]: existing Event has 345 ancestors and is cut-off event [2025-03-17 11:15:33,866 INFO L297 olderBase$Statistics]: existing Event has 325 ancestors and is cut-off event [2025-03-17 11:15:33,867 INFO L124 PetriNetUnfolderBase]: 542/2486 cut-off events. [2025-03-17 11:15:33,867 INFO L125 PetriNetUnfolderBase]: For 440/476 co-relation queries the response was YES. [2025-03-17 11:15:33,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4134 conditions, 2486 events. 542/2486 cut-off events. For 440/476 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 16037 event pairs, 154 based on Foata normal form. 21/2212 useless extension candidates. Maximal degree in co-relation 3514. Up to 449 conditions per place. [2025-03-17 11:15:33,880 INFO L140 encePairwiseOnDemand]: 372/377 looper letters, 27 selfloop transitions, 3 changer transitions 0/387 dead transitions. [2025-03-17 11:15:33,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 387 transitions, 966 flow [2025-03-17 11:15:33,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:33,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:33,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1091 transitions. [2025-03-17 11:15:33,882 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.964633068081344 [2025-03-17 11:15:33,882 INFO L175 Difference]: Start difference. First operand has 364 places, 376 transitions, 882 flow. Second operand 3 states and 1091 transitions. [2025-03-17 11:15:33,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 387 transitions, 966 flow [2025-03-17 11:15:33,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 387 transitions, 946 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:15:33,891 INFO L231 Difference]: Finished difference. Result has 366 places, 378 transitions, 886 flow [2025-03-17 11:15:33,894 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=886, PETRI_PLACES=366, PETRI_TRANSITIONS=378} [2025-03-17 11:15:33,894 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, 4 predicate places. [2025-03-17 11:15:33,894 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 378 transitions, 886 flow [2025-03-17 11:15:33,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:33,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:33,895 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:33,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 11:15:33,895 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:33,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:33,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1503822443, now seen corresponding path program 1 times [2025-03-17 11:15:33,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:33,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107584261] [2025-03-17 11:15:33,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:33,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:33,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 282 statements into 1 equivalence classes. [2025-03-17 11:15:33,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 282 of 282 statements. [2025-03-17 11:15:33,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:33,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:34,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:34,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:34,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107584261] [2025-03-17 11:15:34,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107584261] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:34,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:34,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:15:34,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084411400] [2025-03-17 11:15:34,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:34,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:34,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:34,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:34,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:34,169 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 377 [2025-03-17 11:15:34,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 378 transitions, 886 flow. Second operand has 3 states, 3 states have (on average 360.0) internal successors, (1080), 3 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:34,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:34,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 377 [2025-03-17 11:15:34,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:34,280 INFO L124 PetriNetUnfolderBase]: 51/770 cut-off events. [2025-03-17 11:15:34,281 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-03-17 11:15:34,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1079 conditions, 770 events. 51/770 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2223 event pairs, 7 based on Foata normal form. 22/759 useless extension candidates. Maximal degree in co-relation 553. Up to 87 conditions per place. [2025-03-17 11:15:34,283 INFO L140 encePairwiseOnDemand]: 369/377 looper letters, 8 selfloop transitions, 8 changer transitions 0/359 dead transitions. [2025-03-17 11:15:34,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 359 transitions, 822 flow [2025-03-17 11:15:34,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:34,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1094 transitions. [2025-03-17 11:15:34,286 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9672855879752431 [2025-03-17 11:15:34,286 INFO L175 Difference]: Start difference. First operand has 366 places, 378 transitions, 886 flow. Second operand 3 states and 1094 transitions. [2025-03-17 11:15:34,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 359 transitions, 822 flow [2025-03-17 11:15:34,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 359 transitions, 790 flow, removed 11 selfloop flow, removed 4 redundant places. [2025-03-17 11:15:34,293 INFO L231 Difference]: Finished difference. Result has 359 places, 357 transitions, 768 flow [2025-03-17 11:15:34,293 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=768, PETRI_PLACES=359, PETRI_TRANSITIONS=357} [2025-03-17 11:15:34,294 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -3 predicate places. [2025-03-17 11:15:34,294 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 357 transitions, 768 flow [2025-03-17 11:15:34,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 360.0) internal successors, (1080), 3 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:34,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:34,295 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:34,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 11:15:34,295 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:34,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:34,296 INFO L85 PathProgramCache]: Analyzing trace with hash 207710333, now seen corresponding path program 1 times [2025-03-17 11:15:34,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:34,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34485411] [2025-03-17 11:15:34,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:34,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:34,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 289 statements into 1 equivalence classes. [2025-03-17 11:15:34,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 289 of 289 statements. [2025-03-17 11:15:34,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:34,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:34,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:34,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:34,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34485411] [2025-03-17 11:15:34,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34485411] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:34,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:34,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:15:34,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250653309] [2025-03-17 11:15:34,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:34,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:34,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:34,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:34,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:34,415 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 377 [2025-03-17 11:15:34,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 357 transitions, 768 flow. Second operand has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:34,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:34,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 377 [2025-03-17 11:15:34,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:34,512 INFO L124 PetriNetUnfolderBase]: 80/845 cut-off events. [2025-03-17 11:15:34,512 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2025-03-17 11:15:34,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1208 conditions, 845 events. 80/845 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2906 event pairs, 22 based on Foata normal form. 1/812 useless extension candidates. Maximal degree in co-relation 674. Up to 115 conditions per place. [2025-03-17 11:15:34,516 INFO L140 encePairwiseOnDemand]: 369/377 looper letters, 20 selfloop transitions, 4 changer transitions 3/359 dead transitions. [2025-03-17 11:15:34,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 359 transitions, 831 flow [2025-03-17 11:15:34,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:34,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:34,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1072 transitions. [2025-03-17 11:15:34,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9478337754199824 [2025-03-17 11:15:34,518 INFO L175 Difference]: Start difference. First operand has 359 places, 357 transitions, 768 flow. Second operand 3 states and 1072 transitions. [2025-03-17 11:15:34,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 359 transitions, 831 flow [2025-03-17 11:15:34,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 359 transitions, 819 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:15:34,522 INFO L231 Difference]: Finished difference. Result has 357 places, 351 transitions, 756 flow [2025-03-17 11:15:34,523 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=357, PETRI_TRANSITIONS=351} [2025-03-17 11:15:34,524 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -5 predicate places. [2025-03-17 11:15:34,524 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 351 transitions, 756 flow [2025-03-17 11:15:34,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:34,524 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:34,525 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:34,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 11:15:34,525 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:34,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:34,526 INFO L85 PathProgramCache]: Analyzing trace with hash -311426945, now seen corresponding path program 1 times [2025-03-17 11:15:34,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:34,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32095888] [2025-03-17 11:15:34,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:34,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:34,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 293 statements into 1 equivalence classes. [2025-03-17 11:15:34,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 293 of 293 statements. [2025-03-17 11:15:34,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:34,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:34,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:34,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32095888] [2025-03-17 11:15:34,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32095888] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:34,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:34,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:15:34,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068235220] [2025-03-17 11:15:34,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:34,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:34,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:34,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:34,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:34,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 377 [2025-03-17 11:15:34,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 351 transitions, 756 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:34,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:34,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 377 [2025-03-17 11:15:34,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:34,754 INFO L124 PetriNetUnfolderBase]: 75/808 cut-off events. [2025-03-17 11:15:34,754 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2025-03-17 11:15:34,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 808 events. 75/808 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2686 event pairs, 29 based on Foata normal form. 0/783 useless extension candidates. Maximal degree in co-relation 598. Up to 142 conditions per place. [2025-03-17 11:15:34,757 INFO L140 encePairwiseOnDemand]: 374/377 looper letters, 19 selfloop transitions, 2 changer transitions 0/351 dead transitions. [2025-03-17 11:15:34,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 351 transitions, 799 flow [2025-03-17 11:15:34,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:34,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:34,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1072 transitions. [2025-03-17 11:15:34,760 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9478337754199824 [2025-03-17 11:15:34,760 INFO L175 Difference]: Start difference. First operand has 357 places, 351 transitions, 756 flow. Second operand 3 states and 1072 transitions. [2025-03-17 11:15:34,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 351 transitions, 799 flow [2025-03-17 11:15:34,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 351 transitions, 791 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:15:34,765 INFO L231 Difference]: Finished difference. Result has 353 places, 350 transitions, 750 flow [2025-03-17 11:15:34,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=750, PETRI_PLACES=353, PETRI_TRANSITIONS=350} [2025-03-17 11:15:34,766 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -9 predicate places. [2025-03-17 11:15:34,766 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 350 transitions, 750 flow [2025-03-17 11:15:34,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:34,768 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:34,768 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:34,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 11:15:34,768 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:34,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1270463737, now seen corresponding path program 1 times [2025-03-17 11:15:34,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:34,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805453273] [2025-03-17 11:15:34,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:34,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:34,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 301 statements into 1 equivalence classes. [2025-03-17 11:15:34,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 301 of 301 statements. [2025-03-17 11:15:34,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:34,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:34,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:34,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805453273] [2025-03-17 11:15:34,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805453273] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:34,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:34,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:15:34,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695348505] [2025-03-17 11:15:34,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:34,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:34,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:34,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:34,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:34,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 377 [2025-03-17 11:15:34,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 350 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 353.6666666666667) internal successors, (1061), 3 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:34,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:34,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 377 [2025-03-17 11:15:34,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:34,971 INFO L124 PetriNetUnfolderBase]: 71/763 cut-off events. [2025-03-17 11:15:34,971 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2025-03-17 11:15:34,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1100 conditions, 763 events. 71/763 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2339 event pairs, 30 based on Foata normal form. 0/744 useless extension candidates. Maximal degree in co-relation 611. Up to 176 conditions per place. [2025-03-17 11:15:34,974 INFO L140 encePairwiseOnDemand]: 374/377 looper letters, 23 selfloop transitions, 2 changer transitions 0/350 dead transitions. [2025-03-17 11:15:34,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 350 transitions, 801 flow [2025-03-17 11:15:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:34,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:34,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1071 transitions. [2025-03-17 11:15:34,976 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.946949602122016 [2025-03-17 11:15:34,976 INFO L175 Difference]: Start difference. First operand has 353 places, 350 transitions, 750 flow. Second operand 3 states and 1071 transitions. [2025-03-17 11:15:34,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 350 transitions, 801 flow [2025-03-17 11:15:34,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 350 transitions, 797 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:15:34,981 INFO L231 Difference]: Finished difference. Result has 352 places, 349 transitions, 748 flow [2025-03-17 11:15:34,982 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=352, PETRI_TRANSITIONS=349} [2025-03-17 11:15:34,982 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -10 predicate places. [2025-03-17 11:15:34,982 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 349 transitions, 748 flow [2025-03-17 11:15:34,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.6666666666667) internal successors, (1061), 3 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:34,983 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:34,983 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:34,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 11:15:34,983 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:34,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:34,986 INFO L85 PathProgramCache]: Analyzing trace with hash 715800675, now seen corresponding path program 1 times [2025-03-17 11:15:34,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:34,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020444338] [2025-03-17 11:15:34,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:34,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:35,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 315 statements into 1 equivalence classes. [2025-03-17 11:15:35,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 315 of 315 statements. [2025-03-17 11:15:35,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:35,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:15:35,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:35,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020444338] [2025-03-17 11:15:35,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020444338] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:35,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:35,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:15:35,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583869872] [2025-03-17 11:15:35,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:35,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 11:15:35,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:35,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 11:15:35,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:15:35,217 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 377 [2025-03-17 11:15:35,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 349 transitions, 748 flow. Second operand has 5 states, 5 states have (on average 356.4) internal successors, (1782), 5 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:35,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:35,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 377 [2025-03-17 11:15:35,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:35,405 INFO L124 PetriNetUnfolderBase]: 146/1208 cut-off events. [2025-03-17 11:15:35,405 INFO L125 PetriNetUnfolderBase]: For 105/106 co-relation queries the response was YES. [2025-03-17 11:15:35,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1748 conditions, 1208 events. 146/1208 cut-off events. For 105/106 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4949 event pairs, 34 based on Foata normal form. 7/1177 useless extension candidates. Maximal degree in co-relation 1150. Up to 127 conditions per place. [2025-03-17 11:15:35,409 INFO L140 encePairwiseOnDemand]: 372/377 looper letters, 46 selfloop transitions, 5 changer transitions 0/381 dead transitions. [2025-03-17 11:15:35,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 381 transitions, 944 flow [2025-03-17 11:15:35,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:15:35,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:15:35,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2176 transitions. [2025-03-17 11:15:35,413 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9619805481874447 [2025-03-17 11:15:35,413 INFO L175 Difference]: Start difference. First operand has 352 places, 349 transitions, 748 flow. Second operand 6 states and 2176 transitions. [2025-03-17 11:15:35,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 381 transitions, 944 flow [2025-03-17 11:15:35,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 381 transitions, 940 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:15:35,418 INFO L231 Difference]: Finished difference. Result has 358 places, 352 transitions, 776 flow [2025-03-17 11:15:35,419 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=776, PETRI_PLACES=358, PETRI_TRANSITIONS=352} [2025-03-17 11:15:35,419 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -4 predicate places. [2025-03-17 11:15:35,419 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 352 transitions, 776 flow [2025-03-17 11:15:35,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 356.4) internal successors, (1782), 5 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:35,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:35,421 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:35,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 11:15:35,421 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:35,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:35,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1105889201, now seen corresponding path program 2 times [2025-03-17 11:15:35,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:35,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055484990] [2025-03-17 11:15:35,422 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:15:35,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:35,449 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 342 statements into 2 equivalence classes. [2025-03-17 11:15:35,459 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 288 of 342 statements. [2025-03-17 11:15:35,459 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:15:35,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:35,504 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-17 11:15:35,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:35,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055484990] [2025-03-17 11:15:35,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055484990] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:35,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:35,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:15:35,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56589971] [2025-03-17 11:15:35,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:35,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:35,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:35,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:35,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:35,530 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 377 [2025-03-17 11:15:35,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 352 transitions, 776 flow. Second operand has 3 states, 3 states have (on average 354.3333333333333) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:35,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:35,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 377 [2025-03-17 11:15:35,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:35,659 INFO L124 PetriNetUnfolderBase]: 111/1060 cut-off events. [2025-03-17 11:15:35,659 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2025-03-17 11:15:35,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1528 conditions, 1060 events. 111/1060 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4043 event pairs, 39 based on Foata normal form. 0/1033 useless extension candidates. Maximal degree in co-relation 933. Up to 189 conditions per place. [2025-03-17 11:15:35,662 INFO L140 encePairwiseOnDemand]: 374/377 looper letters, 23 selfloop transitions, 2 changer transitions 0/356 dead transitions. [2025-03-17 11:15:35,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 356 transitions, 839 flow [2025-03-17 11:15:35,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:35,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:35,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1076 transitions. [2025-03-17 11:15:35,665 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9513704686118479 [2025-03-17 11:15:35,665 INFO L175 Difference]: Start difference. First operand has 358 places, 352 transitions, 776 flow. Second operand 3 states and 1076 transitions. [2025-03-17 11:15:35,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 356 transitions, 839 flow [2025-03-17 11:15:35,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 356 transitions, 833 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-17 11:15:35,669 INFO L231 Difference]: Finished difference. Result has 357 places, 351 transitions, 772 flow [2025-03-17 11:15:35,669 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=772, PETRI_PLACES=357, PETRI_TRANSITIONS=351} [2025-03-17 11:15:35,670 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -5 predicate places. [2025-03-17 11:15:35,670 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 351 transitions, 772 flow [2025-03-17 11:15:35,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 354.3333333333333) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:35,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:35,671 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:35,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 11:15:35,671 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:35,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:35,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1199258783, now seen corresponding path program 1 times [2025-03-17 11:15:35,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:35,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325613097] [2025-03-17 11:15:35,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:35,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:35,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 347 statements into 1 equivalence classes. [2025-03-17 11:15:35,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 347 of 347 statements. [2025-03-17 11:15:35,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:35,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:35,778 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-17 11:15:35,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:35,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325613097] [2025-03-17 11:15:35,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325613097] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:35,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:35,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:15:35,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322105153] [2025-03-17 11:15:35,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:35,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:35,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:35,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:35,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:35,788 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 377 [2025-03-17 11:15:35,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 351 transitions, 772 flow. Second operand has 3 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:35,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:35,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 377 [2025-03-17 11:15:35,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:35,906 INFO L124 PetriNetUnfolderBase]: 98/1009 cut-off events. [2025-03-17 11:15:35,906 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2025-03-17 11:15:35,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1433 conditions, 1009 events. 98/1009 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3549 event pairs, 29 based on Foata normal form. 0/985 useless extension candidates. Maximal degree in co-relation 1191. Up to 153 conditions per place. [2025-03-17 11:15:35,910 INFO L140 encePairwiseOnDemand]: 374/377 looper letters, 20 selfloop transitions, 2 changer transitions 0/355 dead transitions. [2025-03-17 11:15:35,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 355 transitions, 829 flow [2025-03-17 11:15:35,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:35,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:35,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2025-03-17 11:15:35,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9593280282935456 [2025-03-17 11:15:35,912 INFO L175 Difference]: Start difference. First operand has 357 places, 351 transitions, 772 flow. Second operand 3 states and 1085 transitions. [2025-03-17 11:15:35,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 355 transitions, 829 flow [2025-03-17 11:15:35,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 355 transitions, 825 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:15:35,916 INFO L231 Difference]: Finished difference. Result has 356 places, 350 transitions, 770 flow [2025-03-17 11:15:35,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=770, PETRI_PLACES=356, PETRI_TRANSITIONS=350} [2025-03-17 11:15:35,917 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, -6 predicate places. [2025-03-17 11:15:35,917 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 350 transitions, 770 flow [2025-03-17 11:15:35,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:35,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:35,918 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:35,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 11:15:35,919 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:35,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash 709949067, now seen corresponding path program 1 times [2025-03-17 11:15:35,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:35,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854834375] [2025-03-17 11:15:35,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:15:35,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:35,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 363 statements into 1 equivalence classes. [2025-03-17 11:15:35,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 363 of 363 statements. [2025-03-17 11:15:35,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:15:35,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:36,106 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-17 11:15:36,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:36,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854834375] [2025-03-17 11:15:36,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854834375] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:36,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:36,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:15:36,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73116826] [2025-03-17 11:15:36,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:36,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 11:15:36,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:36,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 11:15:36,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:15:36,116 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 377 [2025-03-17 11:15:36,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 350 transitions, 770 flow. Second operand has 5 states, 5 states have (on average 356.8) internal successors, (1784), 5 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:36,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:36,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 377 [2025-03-17 11:15:36,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:36,387 INFO L124 PetriNetUnfolderBase]: 275/2010 cut-off events. [2025-03-17 11:15:36,387 INFO L125 PetriNetUnfolderBase]: For 127/140 co-relation queries the response was YES. [2025-03-17 11:15:36,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3059 conditions, 2010 events. 275/2010 cut-off events. For 127/140 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 10673 event pairs, 74 based on Foata normal form. 21/1971 useless extension candidates. Maximal degree in co-relation 3010. Up to 298 conditions per place. [2025-03-17 11:15:36,398 INFO L140 encePairwiseOnDemand]: 372/377 looper letters, 44 selfloop transitions, 5 changer transitions 0/381 dead transitions. [2025-03-17 11:15:36,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 381 transitions, 956 flow [2025-03-17 11:15:36,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:15:36,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:15:36,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2175 transitions. [2025-03-17 11:15:36,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9615384615384616 [2025-03-17 11:15:36,405 INFO L175 Difference]: Start difference. First operand has 356 places, 350 transitions, 770 flow. Second operand 6 states and 2175 transitions. [2025-03-17 11:15:36,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 381 transitions, 956 flow [2025-03-17 11:15:36,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 381 transitions, 952 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:15:36,412 INFO L231 Difference]: Finished difference. Result has 362 places, 354 transitions, 800 flow [2025-03-17 11:15:36,413 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=800, PETRI_PLACES=362, PETRI_TRANSITIONS=354} [2025-03-17 11:15:36,414 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, 0 predicate places. [2025-03-17 11:15:36,414 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 354 transitions, 800 flow [2025-03-17 11:15:36,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 356.8) internal successors, (1784), 5 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:36,415 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:15:36,416 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:36,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 11:15:36,416 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2025-03-17 11:15:36,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:15:36,418 INFO L85 PathProgramCache]: Analyzing trace with hash 525036134, now seen corresponding path program 2 times [2025-03-17 11:15:36,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:15:36,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876565948] [2025-03-17 11:15:36,418 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:15:36,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:15:36,455 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 383 statements into 2 equivalence classes. [2025-03-17 11:15:36,470 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 336 of 383 statements. [2025-03-17 11:15:36,470 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:15:36,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:15:36,539 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-17 11:15:36,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:15:36,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876565948] [2025-03-17 11:15:36,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876565948] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:15:36,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:15:36,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:15:36,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079879915] [2025-03-17 11:15:36,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:15:36,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:15:36,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:15:36,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:15:36,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:15:36,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 377 [2025-03-17 11:15:36,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 354 transitions, 800 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:36,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:15:36,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 377 [2025-03-17 11:15:36,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:15:36,785 INFO L124 PetriNetUnfolderBase]: 119/1509 cut-off events. [2025-03-17 11:15:36,785 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2025-03-17 11:15:36,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 1509 events. 119/1509 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7159 event pairs, 44 based on Foata normal form. 1/1484 useless extension candidates. Maximal degree in co-relation 1570. Up to 228 conditions per place. [2025-03-17 11:15:36,789 INFO L140 encePairwiseOnDemand]: 375/377 looper letters, 0 selfloop transitions, 0 changer transitions 353/353 dead transitions. [2025-03-17 11:15:36,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 353 transitions, 826 flow [2025-03-17 11:15:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:15:36,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:15:36,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1083 transitions. [2025-03-17 11:15:36,792 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9575596816976127 [2025-03-17 11:15:36,793 INFO L175 Difference]: Start difference. First operand has 362 places, 354 transitions, 800 flow. Second operand 3 states and 1083 transitions. [2025-03-17 11:15:36,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 353 transitions, 826 flow [2025-03-17 11:15:36,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 353 transitions, 826 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:15:36,798 INFO L231 Difference]: Finished difference. Result has 363 places, 0 transitions, 0 flow [2025-03-17 11:15:36,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=363, PETRI_TRANSITIONS=0} [2025-03-17 11:15:36,799 INFO L279 CegarLoopForPetriNet]: 362 programPoint places, 1 predicate places. [2025-03-17 11:15:36,799 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 0 transitions, 0 flow [2025-03-17 11:15:36,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:15:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2025-03-17 11:15:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2025-03-17 11:15:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2025-03-17 11:15:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2025-03-17 11:15:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2025-03-17 11:15:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2025-03-17 11:15:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2025-03-17 11:15:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2025-03-17 11:15:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2025-03-17 11:15:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2025-03-17 11:15:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2025-03-17 11:15:36,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 11:15:36,805 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:15:36,811 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 11:15:36,811 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 11:15:36,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:15:36 BasicIcfg [2025-03-17 11:15:36,818 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 11:15:36,819 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 11:15:36,819 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 11:15:36,819 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 11:15:36,820 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:15:30" (3/4) ... [2025-03-17 11:15:36,822 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 11:15:36,825 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-17 11:15:36,825 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-17 11:15:36,831 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-17 11:15:36,832 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-17 11:15:36,833 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 11:15:36,833 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 11:15:36,906 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 11:15:36,907 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 11:15:36,907 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 11:15:36,908 INFO L158 Benchmark]: Toolchain (without parser) took 7313.94ms. Allocated memory was 142.6MB in the beginning and 453.0MB in the end (delta: 310.4MB). Free memory was 103.5MB in the beginning and 296.6MB in the end (delta: -193.1MB). Peak memory consumption was 115.4MB. Max. memory is 16.1GB. [2025-03-17 11:15:36,908 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:15:36,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.87ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 75.0MB in the end (delta: 28.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-17 11:15:36,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.38ms. Allocated memory is still 142.6MB. Free memory was 75.0MB in the beginning and 72.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:15:36,909 INFO L158 Benchmark]: Boogie Preprocessor took 21.09ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 70.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:15:36,909 INFO L158 Benchmark]: IcfgBuilder took 610.39ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 42.6MB in the end (delta: 28.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 11:15:36,909 INFO L158 Benchmark]: TraceAbstraction took 6132.50ms. Allocated memory was 142.6MB in the beginning and 453.0MB in the end (delta: 310.4MB). Free memory was 41.6MB in the beginning and 300.7MB in the end (delta: -259.1MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2025-03-17 11:15:36,913 INFO L158 Benchmark]: Witness Printer took 88.19ms. Allocated memory is still 453.0MB. Free memory was 300.7MB in the beginning and 296.6MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:15:36,914 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.87ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 75.0MB in the end (delta: 28.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.38ms. Allocated memory is still 142.6MB. Free memory was 75.0MB in the beginning and 72.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.09ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 70.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 610.39ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 42.6MB in the end (delta: 28.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6132.50ms. Allocated memory was 142.6MB in the beginning and 453.0MB in the end (delta: 310.4MB). Free memory was 41.6MB in the beginning and 300.7MB in the end (delta: -259.1MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 88.19ms. Allocated memory is still 453.0MB. Free memory was 300.7MB in the beginning and 296.6MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 880]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 894]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 903]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 908]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 909]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 917]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 918]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 457 locations, 471 edges, 28 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: 6.0s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 496 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 233 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 852 IncrementalHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 93 mSDtfsCounter, 852 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred in iteration=6, InterpolantAutomatonStates: 51, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 4469 NumberOfCodeBlocks, 4368 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 4454 ConstructedInterpolants, 0 QuantifiedInterpolants, 4712 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 129/129 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 11:15:36,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE