./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_01-simple_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 e4f1df14aa697a6b5c77ee19ecaf0110c602a30de6eaa386be3f2cf188498154 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:48:39,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:48:39,853 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:48:39,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:48:39,860 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:48:39,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:48:39,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:48:39,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:48:39,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:48:39,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:48:39,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:48:39,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:48:39,884 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:48:39,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:48:39,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:48:39,884 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:48:39,885 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:48:39,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:48:39,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:48:39,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:48:39,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:48:39,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:48:39,888 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:48:39,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:48:39,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:48:39,889 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:48:39,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:48:39,889 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:48:39,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:48:39,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:48:39,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:48:39,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:48:39,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:48:39,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:48:39,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:48:39,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:48:39,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:48:39,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:48:39,891 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:48:39,891 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:48:39,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:48:39,894 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4f1df14aa697a6b5c77ee19ecaf0110c602a30de6eaa386be3f2cf188498154 [2024-10-13 09:48:40,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:48:40,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:48:40,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:48:40,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:48:40,140 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:48:40,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i [2024-10-13 09:48:41,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:48:41,587 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:48:41,588 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i [2024-10-13 09:48:41,600 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f1c9cfc/f4a1d4cfd83a4e77a72f7cf6dfe88ec0/FLAG092d2399e [2024-10-13 09:48:41,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f1c9cfc/f4a1d4cfd83a4e77a72f7cf6dfe88ec0 [2024-10-13 09:48:41,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:48:41,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:48:41,619 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:48:41,619 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:48:41,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:48:41,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:48:41" (1/1) ... [2024-10-13 09:48:41,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639926bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:41, skipping insertion in model container [2024-10-13 09:48:41,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:48:41" (1/1) ... [2024-10-13 09:48:41,663 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:48:42,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:48:42,072 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:48:42,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:48:42,157 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:48:42,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42 WrapperNode [2024-10-13 09:48:42,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:48:42,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:48:42,160 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:48:42,160 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:48:42,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,210 INFO L138 Inliner]: procedures = 262, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-10-13 09:48:42,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:48:42,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:48:42,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:48:42,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:48:42,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:48:42,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:48:42,232 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:48:42,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:48:42,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (1/1) ... [2024-10-13 09:48:42,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:48:42,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:48:42,259 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) [2024-10-13 09:48:42,260 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 [2024-10-13 09:48:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:48:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:48:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:48:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:48:42,296 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:48:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:48:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:48:42,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:48:42,298 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:48:42,393 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:48:42,395 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:48:42,491 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:48:42,491 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:48:42,516 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:48:42,516 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 09:48:42,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:48:42 BoogieIcfgContainer [2024-10-13 09:48:42,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:48:42,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:48:42,519 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:48:42,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:48:42,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:48:41" (1/3) ... [2024-10-13 09:48:42,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7662e497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:48:42, skipping insertion in model container [2024-10-13 09:48:42,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:48:42" (2/3) ... [2024-10-13 09:48:42,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7662e497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:48:42, skipping insertion in model container [2024-10-13 09:48:42,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:48:42" (3/3) ... [2024-10-13 09:48:42,524 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_01-simple_rc.i [2024-10-13 09:48:42,537 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:48:42,537 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-13 09:48:42,537 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:48:42,571 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 09:48:42,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 129 flow [2024-10-13 09:48:42,621 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2024-10-13 09:48:42,622 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:48:42,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 60 events. 0/60 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-13 09:48:42,624 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 61 transitions, 129 flow [2024-10-13 09:48:42,627 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 55 transitions, 113 flow [2024-10-13 09:48:42,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:48:42,643 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;@1956cc68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:48:42,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-13 09:48:42,656 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:48:42,656 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-10-13 09:48:42,656 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:48:42,657 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:48:42,657 INFO L204 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] [2024-10-13 09:48:42,658 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:48:42,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:48:42,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1228178527, now seen corresponding path program 1 times [2024-10-13 09:48:42,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:48:42,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013713586] [2024-10-13 09:48:42,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:48:42,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:48:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:48:42,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:48:42,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:48:42,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013713586] [2024-10-13 09:48:42,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013713586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:48:42,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:48:42,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:48:42,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572533417] [2024-10-13 09:48:42,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:48:42,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:48:42,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:48:42,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:48:42,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:48:42,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 61 [2024-10-13 09:48:42,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2024-10-13 09:48:42,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:48:42,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 61 [2024-10-13 09:48:42,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:48:43,059 INFO L124 PetriNetUnfolderBase]: 31/178 cut-off events. [2024-10-13 09:48:43,061 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:48:43,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 178 events. 31/178 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 691 event pairs, 13 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 232. Up to 44 conditions per place. [2024-10-13 09:48:43,066 INFO L140 encePairwiseOnDemand]: 53/61 looper letters, 17 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2024-10-13 09:48:43,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 179 flow [2024-10-13 09:48:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:48:43,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:48:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2024-10-13 09:48:43,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.907103825136612 [2024-10-13 09:48:43,079 INFO L175 Difference]: Start difference. First operand has 59 places, 55 transitions, 113 flow. Second operand 3 states and 166 transitions. [2024-10-13 09:48:43,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 179 flow [2024-10-13 09:48:43,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 65 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:48:43,087 INFO L231 Difference]: Finished difference. Result has 62 places, 61 transitions, 164 flow [2024-10-13 09:48:43,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=62, PETRI_TRANSITIONS=61} [2024-10-13 09:48:43,094 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places. [2024-10-13 09:48:43,095 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 61 transitions, 164 flow [2024-10-13 09:48:43,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2024-10-13 09:48:43,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:48:43,095 INFO L204 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] [2024-10-13 09:48:43,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:48:43,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:48:43,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:48:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash -656475038, now seen corresponding path program 1 times [2024-10-13 09:48:43,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:48:43,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835557101] [2024-10-13 09:48:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:48:43,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:48:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:48:43,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:48:43,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:48:43,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835557101] [2024-10-13 09:48:43,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835557101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:48:43,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:48:43,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:48:43,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160478563] [2024-10-13 09:48:43,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:48:43,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:48:43,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:48:43,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:48:43,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:48:43,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 61 [2024-10-13 09:48:43,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 61 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2024-10-13 09:48:43,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:48:43,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 61 [2024-10-13 09:48:43,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:48:43,279 INFO L124 PetriNetUnfolderBase]: 46/220 cut-off events. [2024-10-13 09:48:43,279 INFO L125 PetriNetUnfolderBase]: For 89/93 co-relation queries the response was YES. [2024-10-13 09:48:43,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 220 events. 46/220 cut-off events. For 89/93 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 985 event pairs, 21 based on Foata normal form. 3/207 useless extension candidates. Maximal degree in co-relation 393. Up to 86 conditions per place. [2024-10-13 09:48:43,282 INFO L140 encePairwiseOnDemand]: 55/61 looper letters, 16 selfloop transitions, 7 changer transitions 1/68 dead transitions. [2024-10-13 09:48:43,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 68 transitions, 236 flow [2024-10-13 09:48:43,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:48:43,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:48:43,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2024-10-13 09:48:43,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8797814207650273 [2024-10-13 09:48:43,288 INFO L175 Difference]: Start difference. First operand has 62 places, 61 transitions, 164 flow. Second operand 3 states and 161 transitions. [2024-10-13 09:48:43,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 68 transitions, 236 flow [2024-10-13 09:48:43,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 68 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:48:43,291 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 208 flow [2024-10-13 09:48:43,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2024-10-13 09:48:43,292 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 5 predicate places. [2024-10-13 09:48:43,292 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 208 flow [2024-10-13 09:48:43,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2024-10-13 09:48:43,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:48:43,293 INFO L204 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] [2024-10-13 09:48:43,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:48:43,294 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:48:43,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:48:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1406404901, now seen corresponding path program 1 times [2024-10-13 09:48:43,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:48:43,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323273650] [2024-10-13 09:48:43,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:48:43,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:48:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:48:43,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:48:43,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:48:43,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323273650] [2024-10-13 09:48:43,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323273650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:48:43,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:48:43,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:48:43,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409345845] [2024-10-13 09:48:43,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:48:43,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:48:43,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:48:43,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:48:43,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:48:43,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 61 [2024-10-13 09:48:43,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-10-13 09:48:43,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:48:43,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 61 [2024-10-13 09:48:43,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:48:43,429 INFO L124 PetriNetUnfolderBase]: 59/261 cut-off events. [2024-10-13 09:48:43,429 INFO L125 PetriNetUnfolderBase]: For 179/183 co-relation queries the response was YES. [2024-10-13 09:48:43,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 261 events. 59/261 cut-off events. For 179/183 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1222 event pairs, 21 based on Foata normal form. 1/246 useless extension candidates. Maximal degree in co-relation 541. Up to 100 conditions per place. [2024-10-13 09:48:43,433 INFO L140 encePairwiseOnDemand]: 55/61 looper letters, 16 selfloop transitions, 7 changer transitions 7/73 dead transitions. [2024-10-13 09:48:43,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 73 transitions, 292 flow [2024-10-13 09:48:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:48:43,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:48:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2024-10-13 09:48:43,435 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8524590163934426 [2024-10-13 09:48:43,435 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 208 flow. Second operand 3 states and 156 transitions. [2024-10-13 09:48:43,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 73 transitions, 292 flow [2024-10-13 09:48:43,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 73 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:48:43,437 INFO L231 Difference]: Finished difference. Result has 66 places, 65 transitions, 226 flow [2024-10-13 09:48:43,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=66, PETRI_TRANSITIONS=65} [2024-10-13 09:48:43,438 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2024-10-13 09:48:43,438 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 65 transitions, 226 flow [2024-10-13 09:48:43,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-10-13 09:48:43,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:48:43,439 INFO L204 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] [2024-10-13 09:48:43,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:48:43,439 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:48:43,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:48:43,439 INFO L85 PathProgramCache]: Analyzing trace with hash 563530459, now seen corresponding path program 1 times [2024-10-13 09:48:43,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:48:43,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641113820] [2024-10-13 09:48:43,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:48:43,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:48:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:48:43,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:48:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:48:43,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:48:43,500 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:48:43,501 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-10-13 09:48:43,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-13 09:48:43,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-13 09:48:43,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-13 09:48:43,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-13 09:48:43,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-13 09:48:43,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-13 09:48:43,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:48:43,505 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-13 09:48:43,535 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 09:48:43,536 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 09:48:43,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:48:43 BasicIcfg [2024-10-13 09:48:43,543 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 09:48:43,543 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 09:48:43,543 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 09:48:43,544 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 09:48:43,544 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:48:42" (3/4) ... [2024-10-13 09:48:43,545 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 09:48:43,546 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 09:48:43,547 INFO L158 Benchmark]: Toolchain (without parser) took 1930.21ms. Allocated memory is still 163.6MB. Free memory was 93.7MB in the beginning and 68.3MB in the end (delta: 25.4MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2024-10-13 09:48:43,547 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:48:43,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.21ms. Allocated memory is still 163.6MB. Free memory was 93.5MB in the beginning and 113.1MB in the end (delta: -19.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 09:48:43,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.19ms. Allocated memory is still 163.6MB. Free memory was 113.1MB in the beginning and 111.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 09:48:43,549 INFO L158 Benchmark]: Boogie Preprocessor took 20.03ms. Allocated memory is still 163.6MB. Free memory was 111.0MB in the beginning and 109.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 09:48:43,551 INFO L158 Benchmark]: RCFGBuilder took 285.26ms. Allocated memory is still 163.6MB. Free memory was 109.4MB in the beginning and 95.9MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 09:48:43,551 INFO L158 Benchmark]: TraceAbstraction took 1024.42ms. Allocated memory is still 163.6MB. Free memory was 95.1MB in the beginning and 69.2MB in the end (delta: 26.0MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2024-10-13 09:48:43,551 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 163.6MB. Free memory was 69.2MB in the beginning and 68.3MB in the end (delta: 850.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:48:43,553 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 539.21ms. Allocated memory is still 163.6MB. Free memory was 93.5MB in the beginning and 113.1MB in the end (delta: -19.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.19ms. Allocated memory is still 163.6MB. Free memory was 113.1MB in the beginning and 111.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.03ms. Allocated memory is still 163.6MB. Free memory was 111.0MB in the beginning and 109.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.26ms. Allocated memory is still 163.6MB. Free memory was 109.4MB in the beginning and 95.9MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1024.42ms. Allocated memory is still 163.6MB. Free memory was 95.1MB in the beginning and 69.2MB in the end (delta: 26.0MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 163.6MB. Free memory was 69.2MB in the beginning and 68.3MB in the end (delta: 850.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 930]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L927] 0 pthread_t id; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L928] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] EXPR 1 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L930] 0 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] 1 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L930] 0 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [922] and C: myglobal+1 [930] - UnprovableResult [Line: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 928]: 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: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: 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, 80 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: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 6 mSDtfsCounter, 100 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=226occurred 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, 134 NumberOfCodeBlocks, 134 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 RESULT: Ultimate proved your program to be incorrect! [2024-10-13 09:48:43,576 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