./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_47-fun_write.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_47-fun_write.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 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:49:13,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:49:13,303 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:49:13,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:49:13,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:49:13,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:49:13,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:49:13,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:49:13,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:49:13,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:49:13,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:49:13,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:49:13,351 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:49:13,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:49:13,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:49:13,353 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:49:13,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:49:13,357 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:49:13,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:49:13,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:49:13,358 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:49:13,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:49:13,359 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:49:13,360 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:49:13,360 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:49:13,360 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:49:13,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:49:13,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:49:13,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:49:13,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:49:13,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:49:13,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:49:13,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:49:13,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:49:13,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:49:13,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:49:13,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:49:13,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:49:13,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:49:13,364 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:49:13,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:49:13,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 [2024-10-13 09:49:13,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:49:13,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:49:13,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:49:13,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:49:13,653 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:49:13,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.i [2024-10-13 09:49:15,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:49:15,388 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:49:15,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.i [2024-10-13 09:49:15,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b38cdaf4c/ace8cca7a2d8443c9d71fcbca1afda02/FLAGc3d122de8 [2024-10-13 09:49:15,434 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b38cdaf4c/ace8cca7a2d8443c9d71fcbca1afda02 [2024-10-13 09:49:15,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:49:15,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:49:15,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:49:15,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:49:15,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:49:15,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:49:15" (1/1) ... [2024-10-13 09:49:15,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72579af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:15, skipping insertion in model container [2024-10-13 09:49:15,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:49:15" (1/1) ... [2024-10-13 09:49:15,507 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:49:15,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:49:15,917 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:49:15,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:49:16,048 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:49:16,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16 WrapperNode [2024-10-13 09:49:16,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:49:16,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:49:16,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:49:16,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:49:16,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,128 INFO L138 Inliner]: procedures = 263, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2024-10-13 09:49:16,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:49:16,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:49:16,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:49:16,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:49:16,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:49:16,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:49:16,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:49:16,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:49:16,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (1/1) ... [2024-10-13 09:49:16,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:49:16,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:16,212 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 09:49:16,221 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 09:49:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:49:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:49:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:49:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:49:16,266 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:49:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:49:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:49:16,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:49:16,268 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 09:49:16,410 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:49:16,412 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:49:16,586 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:49:16,587 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:49:16,613 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:49:16,613 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 09:49:16,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:16 BoogieIcfgContainer [2024-10-13 09:49:16,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:49:16,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:49:16,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:49:16,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:49:16,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:49:15" (1/3) ... [2024-10-13 09:49:16,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de32922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:49:16, skipping insertion in model container [2024-10-13 09:49:16,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:16" (2/3) ... [2024-10-13 09:49:16,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de32922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:49:16, skipping insertion in model container [2024-10-13 09:49:16,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:16" (3/3) ... [2024-10-13 09:49:16,622 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_47-fun_write.i [2024-10-13 09:49:16,638 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:49:16,638 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-13 09:49:16,638 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:49:16,685 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 09:49:16,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 133 flow [2024-10-13 09:49:16,751 INFO L124 PetriNetUnfolderBase]: 0/62 cut-off events. [2024-10-13 09:49:16,751 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:49:16,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 0/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-13 09:49:16,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 63 transitions, 133 flow [2024-10-13 09:49:16,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 57 transitions, 117 flow [2024-10-13 09:49:16,774 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:49:16,780 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;@224b115, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:49:16,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-13 09:49:16,794 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:49:16,794 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2024-10-13 09:49:16,794 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:16,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:16,798 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] [2024-10-13 09:49:16,798 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 09:49:16,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:16,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2095740332, now seen corresponding path program 1 times [2024-10-13 09:49:16,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:16,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644278436] [2024-10-13 09:49:16,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:16,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:17,041 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 09:49:17,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:17,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644278436] [2024-10-13 09:49:17,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644278436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:17,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:17,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:49:17,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526003523] [2024-10-13 09:49:17,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:17,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:17,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:17,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:17,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:49:17,106 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 63 [2024-10-13 09:49:17,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 09:49:17,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:17,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 63 [2024-10-13 09:49:17,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:17,176 INFO L124 PetriNetUnfolderBase]: 18/157 cut-off events. [2024-10-13 09:49:17,179 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:49:17,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 157 events. 18/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 520 event pairs, 10 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 180. Up to 35 conditions per place. [2024-10-13 09:49:17,182 INFO L140 encePairwiseOnDemand]: 58/63 looper letters, 11 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2024-10-13 09:49:17,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 157 flow [2024-10-13 09:49:17,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:17,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2024-10-13 09:49:17,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-10-13 09:49:17,194 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 117 flow. Second operand 3 states and 172 transitions. [2024-10-13 09:49:17,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 157 flow [2024-10-13 09:49:17,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 62 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:17,200 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 146 flow [2024-10-13 09:49:17,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-10-13 09:49:17,204 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 3 predicate places. [2024-10-13 09:49:17,205 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 146 flow [2024-10-13 09:49:17,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 09:49:17,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:17,205 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 09:49:17,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:49:17,206 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 09:49:17,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:17,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1911077038, now seen corresponding path program 1 times [2024-10-13 09:49:17,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:17,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983417558] [2024-10-13 09:49:17,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:17,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:17,298 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 09:49:17,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:17,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983417558] [2024-10-13 09:49:17,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983417558] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:17,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:17,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:49:17,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551296187] [2024-10-13 09:49:17,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:17,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:17,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:17,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:17,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:49:17,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 63 [2024-10-13 09:49:17,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 09:49:17,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:17,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 63 [2024-10-13 09:49:17,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:17,402 INFO L124 PetriNetUnfolderBase]: 27/193 cut-off events. [2024-10-13 09:49:17,403 INFO L125 PetriNetUnfolderBase]: For 32/37 co-relation queries the response was YES. [2024-10-13 09:49:17,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 193 events. 27/193 cut-off events. For 32/37 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 746 event pairs, 16 based on Foata normal form. 1/176 useless extension candidates. Maximal degree in co-relation 274. Up to 56 conditions per place. [2024-10-13 09:49:17,406 INFO L140 encePairwiseOnDemand]: 58/63 looper letters, 14 selfloop transitions, 5 changer transitions 1/65 dead transitions. [2024-10-13 09:49:17,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 198 flow [2024-10-13 09:49:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:17,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2024-10-13 09:49:17,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8624338624338624 [2024-10-13 09:49:17,411 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 146 flow. Second operand 3 states and 163 transitions. [2024-10-13 09:49:17,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 198 flow [2024-10-13 09:49:17,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:49:17,415 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 174 flow [2024-10-13 09:49:17,415 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-10-13 09:49:17,416 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 5 predicate places. [2024-10-13 09:49:17,416 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 174 flow [2024-10-13 09:49:17,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 09:49:17,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:17,416 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] [2024-10-13 09:49:17,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:49:17,417 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 09:49:17,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:17,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1156977747, now seen corresponding path program 1 times [2024-10-13 09:49:17,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:17,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594588218] [2024-10-13 09:49:17,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:17,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:17,548 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 09:49:17,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594588218] [2024-10-13 09:49:17,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594588218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:17,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:17,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:49:17,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117379280] [2024-10-13 09:49:17,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:17,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:17,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:17,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:17,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:49:17,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 63 [2024-10-13 09:49:17,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 09:49:17,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:17,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 63 [2024-10-13 09:49:17,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:17,665 INFO L124 PetriNetUnfolderBase]: 39/226 cut-off events. [2024-10-13 09:49:17,665 INFO L125 PetriNetUnfolderBase]: For 125/130 co-relation queries the response was YES. [2024-10-13 09:49:17,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 226 events. 39/226 cut-off events. For 125/130 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 947 event pairs, 16 based on Foata normal form. 2/215 useless extension candidates. Maximal degree in co-relation 397. Up to 75 conditions per place. [2024-10-13 09:49:17,669 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 11 selfloop transitions, 7 changer transitions 6/70 dead transitions. [2024-10-13 09:49:17,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 70 transitions, 246 flow [2024-10-13 09:49:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:17,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:17,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-10-13 09:49:17,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8941798941798942 [2024-10-13 09:49:17,673 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 174 flow. Second operand 3 states and 169 transitions. [2024-10-13 09:49:17,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 70 transitions, 246 flow [2024-10-13 09:49:17,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 230 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-13 09:49:17,679 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 200 flow [2024-10-13 09:49:17,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2024-10-13 09:49:17,681 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2024-10-13 09:49:17,681 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 200 flow [2024-10-13 09:49:17,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 09:49:17,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:17,682 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, 1, 1] [2024-10-13 09:49:17,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:49:17,682 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 09:49:17,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:17,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1671204815, now seen corresponding path program 1 times [2024-10-13 09:49:17,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:17,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76620101] [2024-10-13 09:49:17,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:17,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:49:17,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:49:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:49:17,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:49:17,755 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:49:17,756 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2024-10-13 09:49:17,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2024-10-13 09:49:17,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-13 09:49:17,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2024-10-13 09:49:17,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2024-10-13 09:49:17,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:49:17,758 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-13 09:49:17,800 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 09:49:17,801 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 09:49:17,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:49:17 BasicIcfg [2024-10-13 09:49:17,806 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 09:49:17,806 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 09:49:17,806 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 09:49:17,807 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 09:49:17,807 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:16" (3/4) ... [2024-10-13 09:49:17,808 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 09:49:17,809 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 09:49:17,809 INFO L158 Benchmark]: Toolchain (without parser) took 2368.60ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 70.0MB in the beginning and 109.8MB in the end (delta: -39.8MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2024-10-13 09:49:17,810 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 123.7MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:49:17,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.93ms. Allocated memory is still 123.7MB. Free memory was 70.0MB in the beginning and 39.7MB in the end (delta: 30.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-13 09:49:17,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.97ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 39.7MB in the beginning and 136.7MB in the end (delta: -97.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-10-13 09:49:17,811 INFO L158 Benchmark]: Boogie Preprocessor took 44.60ms. Allocated memory is still 167.8MB. Free memory was 136.7MB in the beginning and 137.2MB in the end (delta: -566.6kB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-10-13 09:49:17,812 INFO L158 Benchmark]: RCFGBuilder took 436.89ms. Allocated memory is still 167.8MB. Free memory was 136.3MB in the beginning and 122.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-13 09:49:17,812 INFO L158 Benchmark]: TraceAbstraction took 1189.59ms. Allocated memory is still 167.8MB. Free memory was 121.6MB in the beginning and 109.8MB in the end (delta: 11.8MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-10-13 09:49:17,812 INFO L158 Benchmark]: Witness Printer took 2.59ms. Allocated memory is still 167.8MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:49:17,815 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 123.7MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 604.93ms. Allocated memory is still 123.7MB. Free memory was 70.0MB in the beginning and 39.7MB in the end (delta: 30.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.97ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 39.7MB in the beginning and 136.7MB in the end (delta: -97.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.60ms. Allocated memory is still 167.8MB. Free memory was 136.7MB in the beginning and 137.2MB in the end (delta: -566.6kB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * RCFGBuilder took 436.89ms. Allocated memory is still 167.8MB. Free memory was 136.3MB in the beginning and 122.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1189.59ms. Allocated memory is still 167.8MB. Free memory was 121.6MB in the beginning and 109.8MB in the end (delta: 11.8MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Witness Printer took 2.59ms. Allocated memory is still 167.8MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 933]: 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] [L930] 0 pthread_t id; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L933] 0 myglobal+1 VAL [id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L925] CALL, EXPR 1 f() [L921] 1 return 5; VAL [\result=5, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L925] RET, EXPR 1 f() [L925] 1 myglobal=f() VAL [\old(arg)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=5] [L933] 0 myglobal+1 VAL [id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=5] Now there is a data race on ~myglobal~0 between C: myglobal=f() [925] and C: myglobal+1 [933] - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: 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: 925]: 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, 84 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 4 mSDtfsCounter, 88 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=200occurred 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, 0.3s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 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 09:49:17,840 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