/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:15:11,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:15:11,436 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 17:15:11,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:15:11,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:15:11,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:15:11,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:15:11,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:15:11,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:15:11,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:15:11,482 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:15:11,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:15:11,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:15:11,484 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:15:11,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:15:11,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:15:11,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:15:11,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:15:11,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:15:11,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:15:11,486 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:15:11,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:15:11,487 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:15:11,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:15:11,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:15:11,488 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:15:11,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:15:11,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:15:11,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:15:11,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:15:11,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:15:11,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:15:11,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:15:11,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:15:11,490 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:15:11,490 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:15:11,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:15:11,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:15:11,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:15:11,815 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:15:11,817 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:15:11,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2023-08-25 17:15:13,063 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:15:13,355 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:15:13,355 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2023-08-25 17:15:13,377 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3ffcd319/9eb288392fe3493d9f80ebdde00a6004/FLAGb5888b885 [2023-08-25 17:15:13,392 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3ffcd319/9eb288392fe3493d9f80ebdde00a6004 [2023-08-25 17:15:13,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:15:13,397 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:15:13,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:15:13,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:15:13,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:15:13,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:13,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651ffa15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13, skipping insertion in model container [2023-08-25 17:15:13,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:13,458 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:15:13,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:15:13,864 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:15:13,885 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [121] [2023-08-25 17:15:13,903 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [483] [2023-08-25 17:15:13,903 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [483] [2023-08-25 17:15:13,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:15:13,986 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:15:13,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13 WrapperNode [2023-08-25 17:15:13,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:15:13,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:15:13,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:15:13,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:15:13,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,047 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2023-08-25 17:15:14,051 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:15:14,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:15:14,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:15:14,052 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:15:14,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,060 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:15:14,071 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:15:14,071 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:15:14,071 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:15:14,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (1/1) ... [2023-08-25 17:15:14,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:15:14,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:15:14,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 17:15:14,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 17:15:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:15:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:15:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:15:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:15:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:15:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:15:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:15:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:15:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:15:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:15:14,157 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:15:14,277 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:15:14,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:15:14,452 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:15:14,460 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:15:14,460 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:15:14,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:15:14 BoogieIcfgContainer [2023-08-25 17:15:14,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:15:14,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:15:14,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:15:14,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:15:14,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:15:13" (1/3) ... [2023-08-25 17:15:14,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b84c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:15:14, skipping insertion in model container [2023-08-25 17:15:14,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:13" (2/3) ... [2023-08-25 17:15:14,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b84c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:15:14, skipping insertion in model container [2023-08-25 17:15:14,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:15:14" (3/3) ... [2023-08-25 17:15:14,471 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2023-08-25 17:15:14,486 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:15:14,486 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 17:15:14,486 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:15:14,545 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:15:14,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 70 transitions, 145 flow [2023-08-25 17:15:14,631 INFO L124 PetriNetUnfolderBase]: 3/69 cut-off events. [2023-08-25 17:15:14,631 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:15:14,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 69 events. 3/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-25 17:15:14,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 70 transitions, 145 flow [2023-08-25 17:15:14,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 69 transitions, 141 flow [2023-08-25 17:15:14,646 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:15:14,657 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 69 transitions, 141 flow [2023-08-25 17:15:14,661 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 69 transitions, 141 flow [2023-08-25 17:15:14,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 69 transitions, 141 flow [2023-08-25 17:15:14,690 INFO L124 PetriNetUnfolderBase]: 3/69 cut-off events. [2023-08-25 17:15:14,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:15:14,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 69 events. 3/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-25 17:15:14,692 INFO L119 LiptonReduction]: Number of co-enabled transitions 1020 [2023-08-25 17:15:16,270 INFO L134 LiptonReduction]: Checked pairs total: 3551 [2023-08-25 17:15:16,271 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-08-25 17:15:16,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:15:16,287 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@65594590, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:15:16,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-25 17:15:16,290 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:15:16,291 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-25 17:15:16,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:15:16,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:16,291 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 17:15:16,292 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 17:15:16,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:16,296 INFO L85 PathProgramCache]: Analyzing trace with hash 240743738, now seen corresponding path program 1 times [2023-08-25 17:15:16,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:16,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385607203] [2023-08-25 17:15:16,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:16,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:16,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:15:16,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:16,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385607203] [2023-08-25 17:15:16,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385607203] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:16,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:16,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:15:16,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996865285] [2023-08-25 17:15:16,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:16,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:15:16,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:16,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:15:16,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:15:16,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 124 [2023-08-25 17:15:16,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2023-08-25 17:15:16,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:16,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 124 [2023-08-25 17:15:16,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:16,585 INFO L124 PetriNetUnfolderBase]: 85/210 cut-off events. [2023-08-25 17:15:16,586 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:15:16,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 210 events. 85/210 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 864 event pairs, 35 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 392. Up to 115 conditions per place. [2023-08-25 17:15:16,589 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 30 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2023-08-25 17:15:16,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 39 transitions, 153 flow [2023-08-25 17:15:16,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:15:16,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:15:16,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2023-08-25 17:15:16,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5618279569892473 [2023-08-25 17:15:16,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 209 transitions. [2023-08-25 17:15:16,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 209 transitions. [2023-08-25 17:15:16,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:16,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 209 transitions. [2023-08-25 17:15:16,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2023-08-25 17:15:16,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2023-08-25 17:15:16,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2023-08-25 17:15:16,621 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 3 states and 209 transitions. [2023-08-25 17:15:16,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 39 transitions, 153 flow [2023-08-25 17:15:16,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 39 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:15:16,625 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 100 flow [2023-08-25 17:15:16,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2023-08-25 17:15:16,631 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-25 17:15:16,631 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 100 flow [2023-08-25 17:15:16,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2023-08-25 17:15:16,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:16,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:15:16,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:15:16,632 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 17:15:16,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:16,640 INFO L85 PathProgramCache]: Analyzing trace with hash -370824918, now seen corresponding path program 1 times [2023-08-25 17:15:16,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:16,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848126196] [2023-08-25 17:15:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:16,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:16,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:15:16,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:16,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848126196] [2023-08-25 17:15:16,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848126196] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:16,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:16,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:15:16,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820598379] [2023-08-25 17:15:16,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:16,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:15:16,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:16,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:15:16,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:15:16,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 124 [2023-08-25 17:15:16,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2023-08-25 17:15:16,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:16,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 124 [2023-08-25 17:15:16,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:16,825 INFO L124 PetriNetUnfolderBase]: 84/206 cut-off events. [2023-08-25 17:15:16,825 INFO L125 PetriNetUnfolderBase]: For 94/96 co-relation queries the response was YES. [2023-08-25 17:15:16,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 206 events. 84/206 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 828 event pairs, 48 based on Foata normal form. 2/178 useless extension candidates. Maximal degree in co-relation 495. Up to 168 conditions per place. [2023-08-25 17:15:16,827 INFO L140 encePairwiseOnDemand]: 119/124 looper letters, 28 selfloop transitions, 6 changer transitions 2/39 dead transitions. [2023-08-25 17:15:16,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 39 transitions, 208 flow [2023-08-25 17:15:16,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:15:16,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:15:16,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2023-08-25 17:15:16,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2023-08-25 17:15:16,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 192 transitions. [2023-08-25 17:15:16,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 192 transitions. [2023-08-25 17:15:16,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:16,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 192 transitions. [2023-08-25 17:15:16,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:15:16,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2023-08-25 17:15:16,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2023-08-25 17:15:16,832 INFO L175 Difference]: Start difference. First operand has 29 places, 29 transitions, 100 flow. Second operand 3 states and 192 transitions. [2023-08-25 17:15:16,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 39 transitions, 208 flow [2023-08-25 17:15:16,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 39 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:15:16,835 INFO L231 Difference]: Finished difference. Result has 30 places, 33 transitions, 130 flow [2023-08-25 17:15:16,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=30, PETRI_TRANSITIONS=33} [2023-08-25 17:15:16,835 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-08-25 17:15:16,836 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 33 transitions, 130 flow [2023-08-25 17:15:16,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2023-08-25 17:15:16,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:16,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:15:16,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:15:16,837 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 17:15:16,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:16,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1373594043, now seen corresponding path program 1 times [2023-08-25 17:15:16,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:16,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665024448] [2023-08-25 17:15:16,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:16,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:15:16,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:16,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665024448] [2023-08-25 17:15:16,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665024448] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:16,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:16,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:15:16,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314434418] [2023-08-25 17:15:16,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:16,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:15:16,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:16,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:15:16,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:15:16,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 124 [2023-08-25 17:15:16,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 33 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2023-08-25 17:15:16,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:16,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 124 [2023-08-25 17:15:16,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:16,930 INFO L124 PetriNetUnfolderBase]: 83/211 cut-off events. [2023-08-25 17:15:16,930 INFO L125 PetriNetUnfolderBase]: For 109/117 co-relation queries the response was YES. [2023-08-25 17:15:16,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 211 events. 83/211 cut-off events. For 109/117 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 834 event pairs, 32 based on Foata normal form. 2/187 useless extension candidates. Maximal degree in co-relation 530. Up to 136 conditions per place. [2023-08-25 17:15:16,932 INFO L140 encePairwiseOnDemand]: 118/124 looper letters, 26 selfloop transitions, 7 changer transitions 12/48 dead transitions. [2023-08-25 17:15:16,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 48 transitions, 275 flow [2023-08-25 17:15:16,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:15:16,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:15:16,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2023-08-25 17:15:16,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.532258064516129 [2023-08-25 17:15:16,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 198 transitions. [2023-08-25 17:15:16,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 198 transitions. [2023-08-25 17:15:16,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:16,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 198 transitions. [2023-08-25 17:15:16,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2023-08-25 17:15:16,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2023-08-25 17:15:16,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2023-08-25 17:15:16,937 INFO L175 Difference]: Start difference. First operand has 30 places, 33 transitions, 130 flow. Second operand 3 states and 198 transitions. [2023-08-25 17:15:16,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 48 transitions, 275 flow [2023-08-25 17:15:16,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 48 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:15:16,940 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 158 flow [2023-08-25 17:15:16,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2023-08-25 17:15:16,941 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-25 17:15:16,941 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 158 flow [2023-08-25 17:15:16,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2023-08-25 17:15:16,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:16,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:15:16,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:15:16,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 17:15:16,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:16,942 INFO L85 PathProgramCache]: Analyzing trace with hash 524810532, now seen corresponding path program 1 times [2023-08-25 17:15:16,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:16,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007020740] [2023-08-25 17:15:16,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:16,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:17,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:15:17,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:17,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007020740] [2023-08-25 17:15:17,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007020740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:17,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:17,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:15:17,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111173535] [2023-08-25 17:15:17,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:17,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 17:15:17,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:17,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 17:15:17,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 17:15:17,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 124 [2023-08-25 17:15:17,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2023-08-25 17:15:17,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:17,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 124 [2023-08-25 17:15:17,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:17,105 INFO L124 PetriNetUnfolderBase]: 27/138 cut-off events. [2023-08-25 17:15:17,106 INFO L125 PetriNetUnfolderBase]: For 203/211 co-relation queries the response was YES. [2023-08-25 17:15:17,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 138 events. 27/138 cut-off events. For 203/211 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 655 event pairs, 9 based on Foata normal form. 9/141 useless extension candidates. Maximal degree in co-relation 385. Up to 66 conditions per place. [2023-08-25 17:15:17,107 INFO L140 encePairwiseOnDemand]: 119/124 looper letters, 14 selfloop transitions, 2 changer transitions 9/39 dead transitions. [2023-08-25 17:15:17,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 234 flow [2023-08-25 17:15:17,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:15:17,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:15:17,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 226 transitions. [2023-08-25 17:15:17,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45564516129032256 [2023-08-25 17:15:17,108 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 226 transitions. [2023-08-25 17:15:17,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 226 transitions. [2023-08-25 17:15:17,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:17,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 226 transitions. [2023-08-25 17:15:17,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 56.5) internal successors, (226), 4 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) [2023-08-25 17:15:17,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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) [2023-08-25 17:15:17,111 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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) [2023-08-25 17:15:17,111 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 158 flow. Second operand 4 states and 226 transitions. [2023-08-25 17:15:17,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 234 flow [2023-08-25 17:15:17,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:15:17,114 INFO L231 Difference]: Finished difference. Result has 36 places, 29 transitions, 141 flow [2023-08-25 17:15:17,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=36, PETRI_TRANSITIONS=29} [2023-08-25 17:15:17,115 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2023-08-25 17:15:17,115 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 29 transitions, 141 flow [2023-08-25 17:15:17,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2023-08-25 17:15:17,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:17,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:15:17,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:15:17,116 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 17:15:17,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash 122561592, now seen corresponding path program 2 times [2023-08-25 17:15:17,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:17,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722938502] [2023-08-25 17:15:17,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:17,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:17,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:15:17,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:17,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722938502] [2023-08-25 17:15:17,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722938502] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:17,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:17,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:15:17,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988218206] [2023-08-25 17:15:17,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:17,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 17:15:17,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:17,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 17:15:17,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 17:15:17,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 124 [2023-08-25 17:15:17,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2023-08-25 17:15:17,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:17,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 124 [2023-08-25 17:15:17,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:17,264 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-25 17:15:17,265 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-08-25 17:15:17,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 10 events. 0/10 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 3/13 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-25 17:15:17,265 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-08-25 17:15:17,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 10 transitions, 59 flow [2023-08-25 17:15:17,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:15:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:15:17,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2023-08-25 17:15:17,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4274193548387097 [2023-08-25 17:15:17,268 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 212 transitions. [2023-08-25 17:15:17,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 212 transitions. [2023-08-25 17:15:17,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:17,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 212 transitions. [2023-08-25 17:15:17,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2023-08-25 17:15:17,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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) [2023-08-25 17:15:17,271 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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) [2023-08-25 17:15:17,271 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 141 flow. Second operand 4 states and 212 transitions. [2023-08-25 17:15:17,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 10 transitions, 59 flow [2023-08-25 17:15:17,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 10 transitions, 40 flow, removed 3 selfloop flow, removed 8 redundant places. [2023-08-25 17:15:17,272 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-08-25 17:15:17,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-08-25 17:15:17,273 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -8 predicate places. [2023-08-25 17:15:17,273 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-08-25 17:15:17,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2023-08-25 17:15:17,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-25 17:15:17,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-25 17:15:17,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-25 17:15:17,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-25 17:15:17,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-25 17:15:17,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-25 17:15:17,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-25 17:15:17,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:15:17,278 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-25 17:15:17,282 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:15:17,282 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:15:17,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:15:17 BasicIcfg [2023-08-25 17:15:17,285 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:15:17,286 INFO L158 Benchmark]: Toolchain (without parser) took 3888.56ms. Allocated memory is still 367.0MB. Free memory was 322.4MB in the beginning and 164.8MB in the end (delta: 157.6MB). Peak memory consumption was 160.2MB. Max. memory is 16.0GB. [2023-08-25 17:15:17,286 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 367.0MB. Free memory is still 343.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:15:17,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.37ms. Allocated memory is still 367.0MB. Free memory was 322.1MB in the beginning and 339.8MB in the end (delta: -17.7MB). Peak memory consumption was 31.8MB. Max. memory is 16.0GB. [2023-08-25 17:15:17,287 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.10ms. Allocated memory is still 367.0MB. Free memory was 339.8MB in the beginning and 337.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:15:17,287 INFO L158 Benchmark]: Boogie Preprocessor took 18.48ms. Allocated memory is still 367.0MB. Free memory was 337.7MB in the beginning and 336.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:15:17,288 INFO L158 Benchmark]: RCFGBuilder took 392.68ms. Allocated memory is still 367.0MB. Free memory was 336.4MB in the beginning and 323.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 17:15:17,288 INFO L158 Benchmark]: TraceAbstraction took 2819.70ms. Allocated memory is still 367.0MB. Free memory was 322.4MB in the beginning and 164.8MB in the end (delta: 157.6MB). Peak memory consumption was 157.8MB. Max. memory is 16.0GB. [2023-08-25 17:15:17,290 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 367.0MB. Free memory is still 343.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 587.37ms. Allocated memory is still 367.0MB. Free memory was 322.1MB in the beginning and 339.8MB in the end (delta: -17.7MB). Peak memory consumption was 31.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.10ms. Allocated memory is still 367.0MB. Free memory was 339.8MB in the beginning and 337.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.48ms. Allocated memory is still 367.0MB. Free memory was 337.7MB in the beginning and 336.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 392.68ms. Allocated memory is still 367.0MB. Free memory was 336.4MB in the beginning and 323.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2819.70ms. Allocated memory is still 367.0MB. Free memory was 322.4MB in the beginning and 164.8MB in the end (delta: 157.6MB). Peak memory consumption was 157.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 121]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [121] - GenericResultAtLocation [Line: 483]: Unsoundness Warning unspecified type, defaulting to int C: short [483] - GenericResultAtLocation [Line: 483]: Unsoundness Warning unspecified type, defaulting to int C: short [483] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 70 PlacesBefore, 26 PlacesAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1020 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 54 TotalNumberOfCompositions, 3551 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1750, independent: 1518, independent conditional: 0, independent unconditional: 1518, dependent: 232, dependent conditional: 0, dependent unconditional: 232, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 586, independent: 555, independent conditional: 0, independent unconditional: 555, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1750, independent: 963, independent conditional: 0, independent unconditional: 963, dependent: 201, dependent conditional: 0, dependent unconditional: 201, unknown: 586, unknown conditional: 0, unknown unconditional: 586] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 18 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=3, InterpolantAutomatonStates: 17, 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 17:15:17,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...