./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/13-privatized_18-first-reads_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 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/13-privatized_18-first-reads_true.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 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:25:48,504 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:25:48,603 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:25:48,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:25:48,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:25:48,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:25:48,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:25:48,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:25:48,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:25:48,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:25:48,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:25:48,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:25:48,645 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:25:48,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:25:48,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:25:48,647 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:25:48,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:25:48,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:25:48,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:25:48,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:25:48,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:25:48,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:25:48,652 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:25:48,652 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:25:48,652 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:25:48,653 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:25:48,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:25:48,653 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:25:48,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:25:48,654 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:25:48,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:25:48,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:25:48,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:25:48,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:25:48,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:25:48,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:25:48,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:25:48,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:25:48,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:25:48,657 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:25:48,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:25:48,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f [2024-10-24 15:25:48,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:25:48,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:25:48,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:25:48,969 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:25:48,969 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:25:48,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2024-10-24 15:25:50,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:25:50,610 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:25:50,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2024-10-24 15:25:50,625 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e9edaaae/bb9e1c71ddf3496fbe473b66c2f09184/FLAGc818cfd0f [2024-10-24 15:25:50,645 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e9edaaae/bb9e1c71ddf3496fbe473b66c2f09184 [2024-10-24 15:25:50,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:25:50,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:25:50,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:25:50,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:25:50,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:25:50,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:25:50" (1/1) ... [2024-10-24 15:25:50,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0163ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:50, skipping insertion in model container [2024-10-24 15:25:50,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:25:50" (1/1) ... [2024-10-24 15:25:50,703 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:25:51,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:25:51,112 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:25:51,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:25:51,206 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:25:51,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51 WrapperNode [2024-10-24 15:25:51,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:25:51,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:25:51,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:25:51,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:25:51,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,248 INFO L138 Inliner]: procedures = 163, calls = 20, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 52 [2024-10-24 15:25:51,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:25:51,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:25:51,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:25:51,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:25:51,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:25:51,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:25:51,283 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:25:51,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:25:51,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (1/1) ... [2024-10-24 15:25:51,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:25:51,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:25:51,317 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) [2024-10-24 15:25:51,321 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 [2024-10-24 15:25:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:25:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:25:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:25:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:25:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:25:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:25:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:25:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:25:51,394 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:25:51,544 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:25:51,545 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:25:51,687 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:25:51,688 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:25:51,711 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:25:51,711 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:25:51,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:25:51 BoogieIcfgContainer [2024-10-24 15:25:51,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:25:51,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:25:51,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:25:51,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:25:51,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:25:50" (1/3) ... [2024-10-24 15:25:51,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47347c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:25:51, skipping insertion in model container [2024-10-24 15:25:51,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:25:51" (2/3) ... [2024-10-24 15:25:51,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47347c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:25:51, skipping insertion in model container [2024-10-24 15:25:51,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:25:51" (3/3) ... [2024-10-24 15:25:51,722 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2024-10-24 15:25:51,739 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:25:51,739 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-24 15:25:51,739 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:25:51,808 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:25:51,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 195 flow [2024-10-24 15:25:51,879 INFO L124 PetriNetUnfolderBase]: 5/93 cut-off events. [2024-10-24 15:25:51,880 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:25:51,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 5/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 110 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2024-10-24 15:25:51,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 195 flow [2024-10-24 15:25:51,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 88 transitions, 179 flow [2024-10-24 15:25:51,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:25:51,909 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;@69427302, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:25:51,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-24 15:25:51,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:25:51,915 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-10-24 15:25:51,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:25:51,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:51,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:25:51,917 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 15:25:51,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1107606702, now seen corresponding path program 1 times [2024-10-24 15:25:51,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:51,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371545633] [2024-10-24 15:25:51,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:51,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:52,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:25:52,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:52,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371545633] [2024-10-24 15:25:52,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371545633] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:52,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:52,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:25:52,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671340964] [2024-10-24 15:25:52,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:52,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:25:52,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:52,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:25:52,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:25:52,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 94 [2024-10-24 15:25:52,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 88 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-10-24 15:25:52,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:52,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 94 [2024-10-24 15:25:52,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:52,348 INFO L124 PetriNetUnfolderBase]: 34/252 cut-off events. [2024-10-24 15:25:52,348 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:25:52,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 252 events. 34/252 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1134 event pairs, 13 based on Foata normal form. 20/246 useless extension candidates. Maximal degree in co-relation 302. Up to 59 conditions per place. [2024-10-24 15:25:52,354 INFO L140 encePairwiseOnDemand]: 81/94 looper letters, 13 selfloop transitions, 6 changer transitions 4/84 dead transitions. [2024-10-24 15:25:52,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 84 transitions, 211 flow [2024-10-24 15:25:52,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:25:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:25:52,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2024-10-24 15:25:52,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8581560283687943 [2024-10-24 15:25:52,370 INFO L175 Difference]: Start difference. First operand has 87 places, 88 transitions, 179 flow. Second operand 3 states and 242 transitions. [2024-10-24 15:25:52,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 84 transitions, 211 flow [2024-10-24 15:25:52,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 84 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:25:52,376 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 190 flow [2024-10-24 15:25:52,378 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=84, PETRI_TRANSITIONS=78} [2024-10-24 15:25:52,382 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, -3 predicate places. [2024-10-24 15:25:52,382 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 190 flow [2024-10-24 15:25:52,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-10-24 15:25:52,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:52,383 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, 1] [2024-10-24 15:25:52,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:25:52,399 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 15:25:52,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:52,400 INFO L85 PathProgramCache]: Analyzing trace with hash 878456138, now seen corresponding path program 1 times [2024-10-24 15:25:52,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:52,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993178906] [2024-10-24 15:25:52,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:52,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:52,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:25:52,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:52,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993178906] [2024-10-24 15:25:52,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993178906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:52,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:52,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:25:52,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958049647] [2024-10-24 15:25:52,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:52,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:25:52,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:52,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:25:52,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:25:52,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 94 [2024-10-24 15:25:52,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2024-10-24 15:25:52,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:52,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 94 [2024-10-24 15:25:52,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:52,680 INFO L124 PetriNetUnfolderBase]: 43/291 cut-off events. [2024-10-24 15:25:52,680 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-24 15:25:52,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 291 events. 43/291 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1452 event pairs, 20 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 432. Up to 81 conditions per place. [2024-10-24 15:25:52,683 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 17 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2024-10-24 15:25:52,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 83 transitions, 246 flow [2024-10-24 15:25:52,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:25:52,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:25:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 239 transitions. [2024-10-24 15:25:52,686 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8475177304964538 [2024-10-24 15:25:52,686 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 190 flow. Second operand 3 states and 239 transitions. [2024-10-24 15:25:52,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 83 transitions, 246 flow [2024-10-24 15:25:52,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 83 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:25:52,689 INFO L231 Difference]: Finished difference. Result has 83 places, 81 transitions, 210 flow [2024-10-24 15:25:52,689 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=83, PETRI_TRANSITIONS=81} [2024-10-24 15:25:52,690 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, -4 predicate places. [2024-10-24 15:25:52,690 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 81 transitions, 210 flow [2024-10-24 15:25:52,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2024-10-24 15:25:52,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:52,691 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, 1, 1, 1, 1] [2024-10-24 15:25:52,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:25:52,692 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 15:25:52,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:52,692 INFO L85 PathProgramCache]: Analyzing trace with hash -755094934, now seen corresponding path program 1 times [2024-10-24 15:25:52,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:52,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802433340] [2024-10-24 15:25:52,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:52,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:52,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:25:52,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:52,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802433340] [2024-10-24 15:25:52,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802433340] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:52,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:52,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:25:52,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062407406] [2024-10-24 15:25:52,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:52,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:25:52,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:52,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:25:52,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:25:52,808 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 94 [2024-10-24 15:25:52,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 81 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-10-24 15:25:52,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:52,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 94 [2024-10-24 15:25:52,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:52,872 INFO L124 PetriNetUnfolderBase]: 45/324 cut-off events. [2024-10-24 15:25:52,872 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-10-24 15:25:52,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 324 events. 45/324 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1746 event pairs, 20 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 489. Up to 87 conditions per place. [2024-10-24 15:25:52,878 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 16 selfloop transitions, 3 changer transitions 3/86 dead transitions. [2024-10-24 15:25:52,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 86 transitions, 268 flow [2024-10-24 15:25:52,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:25:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:25:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 239 transitions. [2024-10-24 15:25:52,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8475177304964538 [2024-10-24 15:25:52,883 INFO L175 Difference]: Start difference. First operand has 83 places, 81 transitions, 210 flow. Second operand 3 states and 239 transitions. [2024-10-24 15:25:52,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 86 transitions, 268 flow [2024-10-24 15:25:52,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 86 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:25:52,886 INFO L231 Difference]: Finished difference. Result has 85 places, 82 transitions, 226 flow [2024-10-24 15:25:52,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=85, PETRI_TRANSITIONS=82} [2024-10-24 15:25:52,889 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, -2 predicate places. [2024-10-24 15:25:52,889 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 82 transitions, 226 flow [2024-10-24 15:25:52,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-10-24 15:25:52,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:52,890 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, 1, 1, 1, 1, 1, 1] [2024-10-24 15:25:52,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:25:52,891 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-24 15:25:52,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:52,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1324512101, now seen corresponding path program 1 times [2024-10-24 15:25:52,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:52,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196089887] [2024-10-24 15:25:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:52,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:53,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:25:53,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:53,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196089887] [2024-10-24 15:25:53,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196089887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:53,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:53,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:25:53,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742154458] [2024-10-24 15:25:53,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:53,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:25:53,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:53,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:25:53,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:25:53,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 94 [2024-10-24 15:25:53,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 82 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2024-10-24 15:25:53,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:53,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 94 [2024-10-24 15:25:53,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:53,144 INFO L124 PetriNetUnfolderBase]: 2/110 cut-off events. [2024-10-24 15:25:53,145 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-24 15:25:53,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 110 events. 2/110 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 144 event pairs, 0 based on Foata normal form. 2/108 useless extension candidates. Maximal degree in co-relation 119. Up to 9 conditions per place. [2024-10-24 15:25:53,147 INFO L140 encePairwiseOnDemand]: 90/94 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2024-10-24 15:25:53,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 74 transitions, 198 flow [2024-10-24 15:25:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:25:53,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:25:53,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2024-10-24 15:25:53,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8900709219858156 [2024-10-24 15:25:53,149 INFO L175 Difference]: Start difference. First operand has 85 places, 82 transitions, 226 flow. Second operand 3 states and 251 transitions. [2024-10-24 15:25:53,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 74 transitions, 198 flow [2024-10-24 15:25:53,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 74 transitions, 176 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-10-24 15:25:53,151 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2024-10-24 15:25:53,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2024-10-24 15:25:53,154 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, -9 predicate places. [2024-10-24 15:25:53,155 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2024-10-24 15:25:53,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2024-10-24 15:25:53,158 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-10-24 15:25:53,159 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-24 15:25:53,160 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2024-10-24 15:25:53,160 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-24 15:25:53,160 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-10-24 15:25:53,160 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-24 15:25:53,161 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-24 15:25:53,161 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-24 15:25:53,161 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-24 15:25:53,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:25:53,162 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-24 15:25:53,170 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:25:53,170 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:25:53,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:25:53 BasicIcfg [2024-10-24 15:25:53,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:25:53,179 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:25:53,182 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:25:53,182 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:25:53,183 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:25:51" (3/4) ... [2024-10-24 15:25:53,184 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 15:25:53,187 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-24 15:25:53,194 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-24 15:25:53,194 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 15:25:53,194 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 15:25:53,194 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 15:25:53,283 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 15:25:53,283 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 15:25:53,283 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:25:53,284 INFO L158 Benchmark]: Toolchain (without parser) took 2634.63ms. Allocated memory is still 178.3MB. Free memory was 115.1MB in the beginning and 71.5MB in the end (delta: 43.6MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2024-10-24 15:25:53,284 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 94.4MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:25:53,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.52ms. Allocated memory is still 178.3MB. Free memory was 115.1MB in the beginning and 139.5MB in the end (delta: -24.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 15:25:53,287 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.13ms. Allocated memory is still 178.3MB. Free memory was 139.5MB in the beginning and 137.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:25:53,287 INFO L158 Benchmark]: Boogie Preprocessor took 27.79ms. Allocated memory is still 178.3MB. Free memory was 137.5MB in the beginning and 136.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:25:53,287 INFO L158 Benchmark]: RCFGBuilder took 432.64ms. Allocated memory is still 178.3MB. Free memory was 136.1MB in the beginning and 120.7MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-24 15:25:53,287 INFO L158 Benchmark]: TraceAbstraction took 1464.97ms. Allocated memory is still 178.3MB. Free memory was 120.7MB in the beginning and 75.7MB in the end (delta: 45.0MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2024-10-24 15:25:53,288 INFO L158 Benchmark]: Witness Printer took 104.42ms. Allocated memory is still 178.3MB. Free memory was 75.7MB in the beginning and 71.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 15:25:53,289 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 94.4MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.52ms. Allocated memory is still 178.3MB. Free memory was 115.1MB in the beginning and 139.5MB in the end (delta: -24.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.13ms. Allocated memory is still 178.3MB. Free memory was 139.5MB in the beginning and 137.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.79ms. Allocated memory is still 178.3MB. Free memory was 137.5MB in the beginning and 136.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 432.64ms. Allocated memory is still 178.3MB. Free memory was 136.1MB in the beginning and 120.7MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1464.97ms. Allocated memory is still 178.3MB. Free memory was 120.7MB in the beginning and 75.7MB in the end (delta: 45.0MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * Witness Printer took 104.42ms. Allocated memory is still 178.3MB. Free memory was 75.7MB in the beginning and 71.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 120 locations, 9 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: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 37 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=3, InterpolantAutomatonStates: 12, 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, 0.4s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 15:25:53,332 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 Result: TRUE