./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 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_16-ps_add1_rc.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 f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:44:50,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:44:50,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:44:50,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:44:50,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:44:50,744 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:44:50,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:44:50,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:44:50,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:44:50,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:44:50,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:44:50,745 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:44:50,746 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:44:50,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:44:50,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:44:50,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:44:50,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:44:50,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:44:50,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:44:50,748 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 -> f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 [2025-03-04 06:44:50,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:44:50,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:44:50,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:44:50,962 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:44:50,963 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:44:50,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2025-03-04 06:44:52,128 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fcd53721/17c7f25d93524a6a9e198316f7fc7c65/FLAGa2134f155 [2025-03-04 06:44:52,413 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:44:52,417 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2025-03-04 06:44:52,436 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fcd53721/17c7f25d93524a6a9e198316f7fc7c65/FLAGa2134f155 [2025-03-04 06:44:52,692 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fcd53721/17c7f25d93524a6a9e198316f7fc7c65 [2025-03-04 06:44:52,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:44:52,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:44:52,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:44:52,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:44:52,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:44:52,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:44:52" (1/1) ... [2025-03-04 06:44:52,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4717e1ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:52, skipping insertion in model container [2025-03-04 06:44:52,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:44:52" (1/1) ... [2025-03-04 06:44:52,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:44:53,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:44:53,101 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:44:53,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:44:53,175 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:44:53,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53 WrapperNode [2025-03-04 06:44:53,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:44:53,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:44:53,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:44:53,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:44:53,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,206 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2025-03-04 06:44:53,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:44:53,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:44:53,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:44:53,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:44:53,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,216 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:44:53,219 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:44:53,219 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:44:53,219 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:44:53,220 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:44:53,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:44:53,252 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) [2025-03-04 06:44:53,255 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 [2025-03-04 06:44:53,273 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 06:44:53,273 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 06:44:53,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:44:53,273 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 06:44:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 06:44:53,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:44:53,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:44:53,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:44:53,275 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:44:53,364 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:44:53,365 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:44:53,471 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:44:53,471 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:44:53,486 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:44:53,486 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:44:53,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:44:53 BoogieIcfgContainer [2025-03-04 06:44:53,486 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:44:53,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:44:53,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:44:53,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:44:53,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:44:52" (1/3) ... [2025-03-04 06:44:53,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787e97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:44:53, skipping insertion in model container [2025-03-04 06:44:53,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53" (2/3) ... [2025-03-04 06:44:53,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787e97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:44:53, skipping insertion in model container [2025-03-04 06:44:53,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:44:53" (3/3) ... [2025-03-04 06:44:53,493 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_16-ps_add1_rc.i [2025-03-04 06:44:53,503 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:44:53,505 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_16-ps_add1_rc.i that has 2 procedures, 73 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-04 06:44:53,505 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:44:53,538 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:44:53,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 75 transitions, 154 flow [2025-03-04 06:44:53,608 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2025-03-04 06:44:53,612 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:44:53,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2025-03-04 06:44:53,617 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 75 transitions, 154 flow [2025-03-04 06:44:53,620 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 74 transitions, 151 flow [2025-03-04 06:44:53,628 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:44:53,638 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;@37703101, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:44:53,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-04 06:44:53,654 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:44:53,654 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2025-03-04 06:44:53,654 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:44:53,655 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:53,655 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:44:53,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-04 06:44:53,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:53,662 INFO L85 PathProgramCache]: Analyzing trace with hash 402134190, now seen corresponding path program 1 times [2025-03-04 06:44:53,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:53,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034097039] [2025-03-04 06:44:53,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:53,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:53,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 06:44:53,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 06:44:53,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:53,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:53,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:53,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:53,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034097039] [2025-03-04 06:44:53,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034097039] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:53,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:53,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:44:53,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422595251] [2025-03-04 06:44:53,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:53,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:44:53,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:53,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:44:53,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:44:53,934 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 75 [2025-03-04 06:44:53,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2025-03-04 06:44:53,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:53,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 75 [2025-03-04 06:44:53,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:54,028 INFO L124 PetriNetUnfolderBase]: 41/259 cut-off events. [2025-03-04 06:44:54,028 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:44:54,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 259 events. 41/259 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1178 event pairs, 10 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 320. Up to 43 conditions per place. [2025-03-04 06:44:54,031 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 17 selfloop transitions, 6 changer transitions 0/84 dead transitions. [2025-03-04 06:44:54,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 84 transitions, 217 flow [2025-03-04 06:44:54,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:44:54,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:44:54,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2025-03-04 06:44:54,040 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9377777777777778 [2025-03-04 06:44:54,041 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 151 flow. Second operand 3 states and 211 transitions. [2025-03-04 06:44:54,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 84 transitions, 217 flow [2025-03-04 06:44:54,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 84 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:44:54,050 INFO L231 Difference]: Finished difference. Result has 78 places, 80 transitions, 202 flow [2025-03-04 06:44:54,053 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=78, PETRI_TRANSITIONS=80} [2025-03-04 06:44:54,056 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 3 predicate places. [2025-03-04 06:44:54,057 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 80 transitions, 202 flow [2025-03-04 06:44:54,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2025-03-04 06:44:54,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:54,058 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:44:54,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:44:54,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-04 06:44:54,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:54,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1961185697, now seen corresponding path program 1 times [2025-03-04 06:44:54,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:54,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327126335] [2025-03-04 06:44:54,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:54,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:54,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 06:44:54,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 06:44:54,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:54,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:54,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:54,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327126335] [2025-03-04 06:44:54,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327126335] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:54,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:54,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:44:54,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852302728] [2025-03-04 06:44:54,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:54,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:44:54,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:54,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:44:54,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:44:54,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 75 [2025-03-04 06:44:54,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 80 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2025-03-04 06:44:54,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:54,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 75 [2025-03-04 06:44:54,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:54,248 INFO L124 PetriNetUnfolderBase]: 66/339 cut-off events. [2025-03-04 06:44:54,248 INFO L125 PetriNetUnfolderBase]: For 102/128 co-relation queries the response was YES. [2025-03-04 06:44:54,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 339 events. 66/339 cut-off events. For 102/128 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1705 event pairs, 14 based on Foata normal form. 1/291 useless extension candidates. Maximal degree in co-relation 534. Up to 95 conditions per place. [2025-03-04 06:44:54,252 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 16 selfloop transitions, 7 changer transitions 2/87 dead transitions. [2025-03-04 06:44:54,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 87 transitions, 274 flow [2025-03-04 06:44:54,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:44:54,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:44:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2025-03-04 06:44:54,254 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9155555555555556 [2025-03-04 06:44:54,254 INFO L175 Difference]: Start difference. First operand has 78 places, 80 transitions, 202 flow. Second operand 3 states and 206 transitions. [2025-03-04 06:44:54,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 87 transitions, 274 flow [2025-03-04 06:44:54,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 87 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:44:54,259 INFO L231 Difference]: Finished difference. Result has 80 places, 84 transitions, 244 flow [2025-03-04 06:44:54,259 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=80, PETRI_TRANSITIONS=84} [2025-03-04 06:44:54,260 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 5 predicate places. [2025-03-04 06:44:54,260 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 84 transitions, 244 flow [2025-03-04 06:44:54,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2025-03-04 06:44:54,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:54,260 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:44:54,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:44:54,260 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-04 06:44:54,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:54,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1405382851, now seen corresponding path program 1 times [2025-03-04 06:44:54,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:54,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459063513] [2025-03-04 06:44:54,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:54,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:54,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-04 06:44:54,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-04 06:44:54,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:54,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:54,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:54,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:54,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459063513] [2025-03-04 06:44:54,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459063513] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:54,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:54,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:44:54,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372874863] [2025-03-04 06:44:54,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:54,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:44:54,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:54,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:44:54,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:44:54,348 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 75 [2025-03-04 06:44:54,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 84 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2025-03-04 06:44:54,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:54,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 75 [2025-03-04 06:44:54,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:54,412 INFO L124 PetriNetUnfolderBase]: 75/391 cut-off events. [2025-03-04 06:44:54,413 INFO L125 PetriNetUnfolderBase]: For 197/219 co-relation queries the response was YES. [2025-03-04 06:44:54,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 391 events. 75/391 cut-off events. For 197/219 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2018 event pairs, 16 based on Foata normal form. 1/359 useless extension candidates. Maximal degree in co-relation 687. Up to 99 conditions per place. [2025-03-04 06:44:54,415 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 16 selfloop transitions, 7 changer transitions 7/92 dead transitions. [2025-03-04 06:44:54,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 92 transitions, 332 flow [2025-03-04 06:44:54,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:44:54,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:44:54,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2025-03-04 06:44:54,419 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2025-03-04 06:44:54,419 INFO L175 Difference]: Start difference. First operand has 80 places, 84 transitions, 244 flow. Second operand 3 states and 205 transitions. [2025-03-04 06:44:54,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 92 transitions, 332 flow [2025-03-04 06:44:54,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 92 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:44:54,422 INFO L231 Difference]: Finished difference. Result has 82 places, 84 transitions, 266 flow [2025-03-04 06:44:54,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=82, PETRI_TRANSITIONS=84} [2025-03-04 06:44:54,422 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 7 predicate places. [2025-03-04 06:44:54,422 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 84 transitions, 266 flow [2025-03-04 06:44:54,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2025-03-04 06:44:54,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:54,423 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:44:54,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:44:54,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-04 06:44:54,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash -705971435, now seen corresponding path program 1 times [2025-03-04 06:44:54,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:54,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847322463] [2025-03-04 06:44:54,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:54,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:54,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 06:44:54,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 06:44:54,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:54,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:44:54,457 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:44:54,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 06:44:54,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 06:44:54,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:54,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:44:54,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:44:54,498 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:44:54,500 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-03-04 06:44:54,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-03-04 06:44:54,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2025-03-04 06:44:54,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2025-03-04 06:44:54,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-03-04 06:44:54,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-03-04 06:44:54,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-03-04 06:44:54,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:44:54,503 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-04 06:44:54,537 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 06:44:54,537 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 06:44:54,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:44:54 BasicIcfg [2025-03-04 06:44:54,541 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 06:44:54,542 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 06:44:54,542 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 06:44:54,542 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 06:44:54,543 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:44:53" (3/4) ... [2025-03-04 06:44:54,543 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-04 06:44:54,583 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-03-04 06:44:54,610 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 06:44:54,610 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 06:44:54,611 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 06:44:54,611 INFO L158 Benchmark]: Toolchain (without parser) took 1915.87ms. Allocated memory is still 201.3MB. Free memory was 156.8MB in the beginning and 124.6MB in the end (delta: 32.2MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2025-03-04 06:44:54,611 INFO L158 Benchmark]: CDTParser took 0.95ms. Allocated memory is still 201.3MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:44:54,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.83ms. Allocated memory is still 201.3MB. Free memory was 156.8MB in the beginning and 129.4MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 06:44:54,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.04ms. Allocated memory is still 201.3MB. Free memory was 129.4MB in the beginning and 127.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:44:54,612 INFO L158 Benchmark]: Boogie Preprocessor took 11.54ms. Allocated memory is still 201.3MB. Free memory was 127.5MB in the beginning and 126.6MB in the end (delta: 899.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:44:54,612 INFO L158 Benchmark]: IcfgBuilder took 267.22ms. Allocated memory is still 201.3MB. Free memory was 126.6MB in the beginning and 112.5MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:44:54,612 INFO L158 Benchmark]: TraceAbstraction took 1052.80ms. Allocated memory is still 201.3MB. Free memory was 112.0MB in the beginning and 132.0MB in the end (delta: -20.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:44:54,612 INFO L158 Benchmark]: Witness Printer took 68.97ms. Allocated memory is still 201.3MB. Free memory was 132.0MB in the beginning and 124.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:44:54,613 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95ms. Allocated memory is still 201.3MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.83ms. Allocated memory is still 201.3MB. Free memory was 156.8MB in the beginning and 129.4MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.04ms. Allocated memory is still 201.3MB. Free memory was 129.4MB in the beginning and 127.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.54ms. Allocated memory is still 201.3MB. Free memory was 127.5MB in the beginning and 126.6MB in the end (delta: 899.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 267.22ms. Allocated memory is still 201.3MB. Free memory was 126.6MB in the beginning and 112.5MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1052.80ms. Allocated memory is still 201.3MB. Free memory was 112.0MB in the beginning and 132.0MB in the end (delta: -20.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.97ms. Allocated memory is still 201.3MB. Free memory was 132.0MB in the beginning and 124.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 932]: Data race detected Data race detected The following path leads to a data race: [L928] 0 int glob; VAL [glob=0] [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={1:0}] [L937] 0 int i = __VERIFIER_nondet_int(); VAL [glob=0, i=0, m={1:0}] [L938] 0 pthread_t id; VAL [glob=0, i=0, m={1:0}] [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob=0, i=0, id=-1, m={1:0}] [L932] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, m={1:0}] [L941] COND FALSE 0 !(\read(i)) VAL [\old(arg)={0:0}, arg={0:0}, glob=1, i=0, id=-1, m={1:0}] [L944] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, i=1, id=-1, m={1:0}] [L945] COND TRUE 0 \read(i) VAL [\old(arg)={0:0}, arg={0:0}, glob=1, i=1, id=-1, m={1:0}] [L946] 0 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, i=1, id=-1, m={1:0}] [L932] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, m={1:0}] Now there is a data race on ~glob~0 between C: glob++ [946] and C: glob++ [932] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 93 locations, 7 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: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 16 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-04 06:44:54,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)