./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.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 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 21:57:08,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 21:57:08,505 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 21:57:08,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 21:57:08,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 21:57:08,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 21:57:08,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 21:57:08,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 21:57:08,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 21:57:08,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 21:57:08,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 21:57:08,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 21:57:08,544 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 21:57:08,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 21:57:08,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 21:57:08,545 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 21:57:08,545 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 21:57:08,545 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 21:57:08,545 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 21:57:08,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 21:57:08,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 21:57:08,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 21:57:08,546 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 21:57:08,546 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 21:57:08,546 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 21:57:08,546 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 21:57:08,546 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 21:57:08,546 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 21:57:08,546 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 21:57:08,546 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 21:57:08,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 21:57:08,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:57:08,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 21:57:08,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 21:57:08,547 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 21:57:08,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 21:57:08,547 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 21:57:08,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 21:57:08,547 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 21:57:08,547 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 21:57:08,547 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 21:57:08,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 21:57:08,547 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 -> 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 [2025-03-08 21:57:08,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 21:57:08,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 21:57:08,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 21:57:08,772 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 21:57:08,772 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 21:57:08,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2025-03-08 21:57:09,907 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d02d908/c641ce2de74245fbbe878e545821a5e3/FLAGa56215d99 [2025-03-08 21:57:10,204 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 21:57:10,208 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2025-03-08 21:57:10,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d02d908/c641ce2de74245fbbe878e545821a5e3/FLAGa56215d99 [2025-03-08 21:57:10,477 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d02d908/c641ce2de74245fbbe878e545821a5e3 [2025-03-08 21:57:10,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 21:57:10,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 21:57:10,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 21:57:10,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 21:57:10,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 21:57:10,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b9b2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10, skipping insertion in model container [2025-03-08 21:57:10,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,519 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 21:57:10,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:57:10,750 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 21:57:10,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:57:10,818 INFO L204 MainTranslator]: Completed translation [2025-03-08 21:57:10,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10 WrapperNode [2025-03-08 21:57:10,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 21:57:10,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 21:57:10,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 21:57:10,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 21:57:10,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,844 INFO L138 Inliner]: procedures = 262, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 98 [2025-03-08 21:57:10,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 21:57:10,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 21:57:10,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 21:57:10,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 21:57:10,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,857 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 21:57:10,872 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 21:57:10,872 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 21:57:10,872 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 21:57:10,872 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (1/1) ... [2025-03-08 21:57:10,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:57:10,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:10,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 21:57:10,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 21:57:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 21:57:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 21:57:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 21:57:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-08 21:57:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-08 21:57:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 21:57:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 21:57:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 21:57:10,918 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 21:57:11,020 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 21:57:11,021 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 21:57:11,140 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 21:57:11,140 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 21:57:11,154 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 21:57:11,154 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 21:57:11,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:11 BoogieIcfgContainer [2025-03-08 21:57:11,154 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 21:57:11,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 21:57:11,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 21:57:11,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 21:57:11,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:57:10" (1/3) ... [2025-03-08 21:57:11,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e873e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:57:11, skipping insertion in model container [2025-03-08 21:57:11,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:10" (2/3) ... [2025-03-08 21:57:11,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e873e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:57:11, skipping insertion in model container [2025-03-08 21:57:11,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:11" (3/3) ... [2025-03-08 21:57:11,161 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_43-thread_create_nr.i [2025-03-08 21:57:11,172 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 21:57:11,173 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_43-thread_create_nr.i that has 2 procedures, 125 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2025-03-08 21:57:11,173 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 21:57:11,213 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-08 21:57:11,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 124 transitions, 252 flow [2025-03-08 21:57:11,294 INFO L124 PetriNetUnfolderBase]: 0/123 cut-off events. [2025-03-08 21:57:11,295 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:11,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 123 events. 0/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-03-08 21:57:11,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 124 transitions, 252 flow [2025-03-08 21:57:11,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 123 transitions, 249 flow [2025-03-08 21:57:11,309 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 21:57:11,321 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;@29658e86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 21:57:11,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-03-08 21:57:11,341 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 21:57:11,342 INFO L124 PetriNetUnfolderBase]: 0/75 cut-off events. [2025-03-08 21:57:11,342 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:11,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:11,342 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] [2025-03-08 21:57:11,343 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-08 21:57:11,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:11,347 INFO L85 PathProgramCache]: Analyzing trace with hash 2096176298, now seen corresponding path program 1 times [2025-03-08 21:57:11,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:11,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380435379] [2025-03-08 21:57:11,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:11,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:11,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-08 21:57:11,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-08 21:57:11,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:11,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:11,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:11,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380435379] [2025-03-08 21:57:11,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380435379] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:11,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:11,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:11,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697658286] [2025-03-08 21:57:11,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:11,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:11,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:11,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:11,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:11,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 124 [2025-03-08 21:57:11,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 123 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:11,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:11,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 124 [2025-03-08 21:57:11,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:11,717 INFO L124 PetriNetUnfolderBase]: 6/173 cut-off events. [2025-03-08 21:57:11,718 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 21:57:11,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 173 events. 6/173 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 250 event pairs, 6 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 101. Up to 22 conditions per place. [2025-03-08 21:57:11,720 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 9 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2025-03-08 21:57:11,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 122 transitions, 269 flow [2025-03-08 21:57:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:11,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:11,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2025-03-08 21:57:11,729 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9354838709677419 [2025-03-08 21:57:11,730 INFO L175 Difference]: Start difference. First operand has 127 places, 123 transitions, 249 flow. Second operand 3 states and 348 transitions. [2025-03-08 21:57:11,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 122 transitions, 269 flow [2025-03-08 21:57:11,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 122 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:11,737 INFO L231 Difference]: Finished difference. Result has 127 places, 122 transitions, 250 flow [2025-03-08 21:57:11,738 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=127, PETRI_TRANSITIONS=122} [2025-03-08 21:57:11,740 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, 0 predicate places. [2025-03-08 21:57:11,740 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 122 transitions, 250 flow [2025-03-08 21:57:11,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:11,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:11,741 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] [2025-03-08 21:57:11,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 21:57:11,741 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-08 21:57:11,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:11,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1636182949, now seen corresponding path program 1 times [2025-03-08 21:57:11,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:11,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694267601] [2025-03-08 21:57:11,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:11,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:11,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-08 21:57:11,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-08 21:57:11,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:11,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:11,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:11,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:11,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694267601] [2025-03-08 21:57:11,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694267601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:11,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:11,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:11,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673267897] [2025-03-08 21:57:11,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:11,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:11,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:11,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:11,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:11,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 124 [2025-03-08 21:57:11,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 122 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:11,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:11,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 124 [2025-03-08 21:57:11,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:11,848 INFO L124 PetriNetUnfolderBase]: 0/120 cut-off events. [2025-03-08 21:57:11,848 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:11,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 120 events. 0/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2025-03-08 21:57:11,849 INFO L140 encePairwiseOnDemand]: 118/124 looper letters, 5 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2025-03-08 21:57:11,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 120 transitions, 264 flow [2025-03-08 21:57:11,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:11,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:11,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2025-03-08 21:57:11,852 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9408602150537635 [2025-03-08 21:57:11,852 INFO L175 Difference]: Start difference. First operand has 127 places, 122 transitions, 250 flow. Second operand 3 states and 350 transitions. [2025-03-08 21:57:11,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 120 transitions, 264 flow [2025-03-08 21:57:11,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 120 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:57:11,856 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 250 flow [2025-03-08 21:57:11,859 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2025-03-08 21:57:11,859 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -2 predicate places. [2025-03-08 21:57:11,859 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 250 flow [2025-03-08 21:57:11,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:11,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:11,860 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] [2025-03-08 21:57:11,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 21:57:11,860 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-08 21:57:11,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:11,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1789942544, now seen corresponding path program 1 times [2025-03-08 21:57:11,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:11,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766635573] [2025-03-08 21:57:11,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:11,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:11,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-08 21:57:11,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-08 21:57:11,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:11,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:11,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:11,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:11,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766635573] [2025-03-08 21:57:11,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766635573] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:11,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:11,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:11,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120298153] [2025-03-08 21:57:11,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:11,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:11,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:11,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:11,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:11,991 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2025-03-08 21:57:11,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:11,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:11,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2025-03-08 21:57:11,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:12,027 INFO L124 PetriNetUnfolderBase]: 4/137 cut-off events. [2025-03-08 21:57:12,027 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-08 21:57:12,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 137 events. 4/137 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 4 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 67. Up to 19 conditions per place. [2025-03-08 21:57:12,029 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 10 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2025-03-08 21:57:12,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 119 transitions, 272 flow [2025-03-08 21:57:12,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:12,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:12,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2025-03-08 21:57:12,032 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9301075268817204 [2025-03-08 21:57:12,032 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 250 flow. Second operand 3 states and 346 transitions. [2025-03-08 21:57:12,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 119 transitions, 272 flow [2025-03-08 21:57:12,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 119 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:57:12,035 INFO L231 Difference]: Finished difference. Result has 124 places, 119 transitions, 244 flow [2025-03-08 21:57:12,036 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=124, PETRI_TRANSITIONS=119} [2025-03-08 21:57:12,036 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -3 predicate places. [2025-03-08 21:57:12,037 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 119 transitions, 244 flow [2025-03-08 21:57:12,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:12,037 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:12,037 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] [2025-03-08 21:57:12,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 21:57:12,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-08 21:57:12,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:12,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1062273575, now seen corresponding path program 1 times [2025-03-08 21:57:12,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:12,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100327101] [2025-03-08 21:57:12,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:12,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:12,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-08 21:57:12,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-08 21:57:12,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:12,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:12,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:12,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:12,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100327101] [2025-03-08 21:57:12,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100327101] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:12,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:12,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:12,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119581072] [2025-03-08 21:57:12,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:12,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:12,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:12,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:12,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:12,126 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 124 [2025-03-08 21:57:12,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 119 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:12,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:12,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 124 [2025-03-08 21:57:12,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:12,153 INFO L124 PetriNetUnfolderBase]: 6/148 cut-off events. [2025-03-08 21:57:12,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:12,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 148 events. 6/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 2 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 85. Up to 10 conditions per place. [2025-03-08 21:57:12,157 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 7 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2025-03-08 21:57:12,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 120 transitions, 264 flow [2025-03-08 21:57:12,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:12,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:12,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2025-03-08 21:57:12,161 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9623655913978495 [2025-03-08 21:57:12,161 INFO L175 Difference]: Start difference. First operand has 124 places, 119 transitions, 244 flow. Second operand 3 states and 358 transitions. [2025-03-08 21:57:12,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 120 transitions, 264 flow [2025-03-08 21:57:12,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 120 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:57:12,163 INFO L231 Difference]: Finished difference. Result has 123 places, 118 transitions, 242 flow [2025-03-08 21:57:12,163 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=123, PETRI_TRANSITIONS=118} [2025-03-08 21:57:12,165 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -4 predicate places. [2025-03-08 21:57:12,165 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 118 transitions, 242 flow [2025-03-08 21:57:12,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:12,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:12,165 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] [2025-03-08 21:57:12,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 21:57:12,165 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-08 21:57:12,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:12,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1266061071, now seen corresponding path program 1 times [2025-03-08 21:57:12,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:12,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048365703] [2025-03-08 21:57:12,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:12,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:12,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-08 21:57:12,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-08 21:57:12,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:12,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:12,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:12,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:12,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048365703] [2025-03-08 21:57:12,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048365703] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:12,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:12,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:12,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238833704] [2025-03-08 21:57:12,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:12,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:12,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:12,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:12,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:12,235 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 124 [2025-03-08 21:57:12,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 118 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:12,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:12,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 124 [2025-03-08 21:57:12,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:12,274 INFO L124 PetriNetUnfolderBase]: 12/173 cut-off events. [2025-03-08 21:57:12,275 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-08 21:57:12,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 173 events. 12/173 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 287 event pairs, 8 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 124. Up to 26 conditions per place. [2025-03-08 21:57:12,275 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 9 selfloop transitions, 2 changer transitions 5/119 dead transitions. [2025-03-08 21:57:12,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 119 transitions, 270 flow [2025-03-08 21:57:12,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:12,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:12,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2025-03-08 21:57:12,277 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9408602150537635 [2025-03-08 21:57:12,277 INFO L175 Difference]: Start difference. First operand has 123 places, 118 transitions, 242 flow. Second operand 3 states and 350 transitions. [2025-03-08 21:57:12,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 119 transitions, 270 flow [2025-03-08 21:57:12,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 119 transitions, 266 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:57:12,279 INFO L231 Difference]: Finished difference. Result has 122 places, 113 transitions, 232 flow [2025-03-08 21:57:12,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=122, PETRI_TRANSITIONS=113} [2025-03-08 21:57:12,280 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2025-03-08 21:57:12,281 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 113 transitions, 232 flow [2025-03-08 21:57:12,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:12,282 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:12,282 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] [2025-03-08 21:57:12,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 21:57:12,282 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-03-08 21:57:12,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:12,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1628589238, now seen corresponding path program 1 times [2025-03-08 21:57:12,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:12,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92579710] [2025-03-08 21:57:12,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:12,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:12,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-08 21:57:12,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-08 21:57:12,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:12,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:12,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:12,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92579710] [2025-03-08 21:57:12,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92579710] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:12,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:12,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:12,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475479925] [2025-03-08 21:57:12,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:12,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:12,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:12,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:12,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:12,344 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 124 [2025-03-08 21:57:12,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 113 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:12,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:12,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 124 [2025-03-08 21:57:12,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:12,353 INFO L124 PetriNetUnfolderBase]: 0/112 cut-off events. [2025-03-08 21:57:12,353 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:12,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 112 events. 0/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2025-03-08 21:57:12,353 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 0 selfloop transitions, 0 changer transitions 112/112 dead transitions. [2025-03-08 21:57:12,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 112 transitions, 248 flow [2025-03-08 21:57:12,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:12,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:12,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2025-03-08 21:57:12,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9381720430107527 [2025-03-08 21:57:12,355 INFO L175 Difference]: Start difference. First operand has 122 places, 113 transitions, 232 flow. Second operand 3 states and 349 transitions. [2025-03-08 21:57:12,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 112 transitions, 248 flow [2025-03-08 21:57:12,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 112 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:57:12,356 INFO L231 Difference]: Finished difference. Result has 117 places, 0 transitions, 0 flow [2025-03-08 21:57:12,357 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=117, PETRI_TRANSITIONS=0} [2025-03-08 21:57:12,357 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -10 predicate places. [2025-03-08 21:57:12,357 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 0 transitions, 0 flow [2025-03-08 21:57:12,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:12,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2025-03-08 21:57:12,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2025-03-08 21:57:12,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2025-03-08 21:57:12,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2025-03-08 21:57:12,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2025-03-08 21:57:12,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2025-03-08 21:57:12,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2025-03-08 21:57:12,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2025-03-08 21:57:12,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2025-03-08 21:57:12,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2025-03-08 21:57:12,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 21:57:12,362 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-08 21:57:12,367 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 21:57:12,367 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 21:57:12,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 09:57:12 BasicIcfg [2025-03-08 21:57:12,373 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 21:57:12,374 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 21:57:12,374 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 21:57:12,374 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 21:57:12,375 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:11" (3/4) ... [2025-03-08 21:57:12,376 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 21:57:12,378 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-08 21:57:12,381 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-08 21:57:12,382 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 21:57:12,382 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 21:57:12,444 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 21:57:12,444 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 21:57:12,444 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 21:57:12,445 INFO L158 Benchmark]: Toolchain (without parser) took 1965.41ms. Allocated memory is still 167.8MB. Free memory was 121.0MB in the beginning and 100.2MB in the end (delta: 20.8MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2025-03-08 21:57:12,446 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:12,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.63ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 93.4MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 21:57:12,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.26ms. Allocated memory is still 167.8MB. Free memory was 93.4MB in the beginning and 91.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 21:57:12,447 INFO L158 Benchmark]: Boogie Preprocessor took 19.87ms. Allocated memory is still 167.8MB. Free memory was 91.6MB in the beginning and 90.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:12,448 INFO L158 Benchmark]: IcfgBuilder took 282.82ms. Allocated memory is still 167.8MB. Free memory was 90.2MB in the beginning and 74.8MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 21:57:12,449 INFO L158 Benchmark]: TraceAbstraction took 1217.51ms. Allocated memory is still 167.8MB. Free memory was 74.3MB in the beginning and 106.4MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:12,449 INFO L158 Benchmark]: Witness Printer took 70.36ms. Allocated memory is still 167.8MB. Free memory was 106.4MB in the beginning and 100.2MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 21:57:12,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.63ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 93.4MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.26ms. Allocated memory is still 167.8MB. Free memory was 93.4MB in the beginning and 91.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.87ms. Allocated memory is still 167.8MB. Free memory was 91.6MB in the beginning and 90.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 282.82ms. Allocated memory is still 167.8MB. Free memory was 90.2MB in the beginning and 74.8MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1217.51ms. Allocated memory is still 167.8MB. Free memory was 74.3MB in the beginning and 106.4MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.36ms. Allocated memory is still 167.8MB. Free memory was 106.4MB in the beginning and 100.2MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 929]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 930]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 930]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: 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 3 procedures, 143 locations, 141 edges, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 39 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 518 NumberOfCodeBlocks, 518 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 512 ConstructedInterpolants, 0 QuantifiedInterpolants, 524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 21:57:12,464 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