/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 -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_22-deref_read.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:15:46,294 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:15:46,376 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 03:15:46,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:15:46,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:15:46,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:15:46,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:15:46,413 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:15:46,414 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:15:46,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:15:46,417 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:15:46,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:15:46,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:15:46,419 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:15:46,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:15:46,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:15:46,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:15:46,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:15:46,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:15:46,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:15:46,421 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:15:46,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:15:46,422 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:15:46,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:15:46,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:15:46,423 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:15:46,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:15:46,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:15:46,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:15:46,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:15:46,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:15:46,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:15:46,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:15:46,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:15:46,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:15:46,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:15:46,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:15:46,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:15:46,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:15:46,728 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:15:46,728 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:15:46,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_22-deref_read.i [2023-08-25 03:15:47,910 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:15:48,164 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:15:48,164 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_22-deref_read.i [2023-08-25 03:15:48,180 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40c2a7f8d/ac634e063acc4d618f87e38bec42b684/FLAGa63eb39ea [2023-08-25 03:15:48,192 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40c2a7f8d/ac634e063acc4d618f87e38bec42b684 [2023-08-25 03:15:48,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:15:48,196 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:15:48,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:15:48,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:15:48,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:15:48,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1689c8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48, skipping insertion in model container [2023-08-25 03:15:48,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,234 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:15:48,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:15:48,526 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:15:48,555 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:15:48,557 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:15:48,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:15:48,619 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:15:48,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48 WrapperNode [2023-08-25 03:15:48,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:15:48,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:15:48,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:15:48,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:15:48,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,675 INFO L138 Inliner]: procedures = 162, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2023-08-25 03:15:48,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:15:48,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:15:48,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:15:48,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:15:48,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,700 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:15:48,703 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:15:48,703 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:15:48,703 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:15:48,706 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (1/1) ... [2023-08-25 03:15:48,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:15:48,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:15:48,738 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 03:15:48,746 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 03:15:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:15:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:15:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:15:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:15:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:15:48,765 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:15:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:15:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:15:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:15:48,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:15:48,767 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 03:15:48,867 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:15:48,868 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:15:48,987 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:15:48,992 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:15:48,993 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:15:48,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:15:48 BoogieIcfgContainer [2023-08-25 03:15:48,994 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:15:48,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:15:48,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:15:48,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:15:48,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:15:48" (1/3) ... [2023-08-25 03:15:49,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fad6f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:15:49, skipping insertion in model container [2023-08-25 03:15:49,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:48" (2/3) ... [2023-08-25 03:15:49,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fad6f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:15:49, skipping insertion in model container [2023-08-25 03:15:49,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:15:48" (3/3) ... [2023-08-25 03:15:49,001 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_22-deref_read.i [2023-08-25 03:15:49,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:15:49,016 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-25 03:15:49,016 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:15:49,062 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:15:49,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 149 flow [2023-08-25 03:15:49,137 INFO L124 PetriNetUnfolderBase]: 0/71 cut-off events. [2023-08-25 03:15:49,138 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:49,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:15:49,141 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 72 transitions, 149 flow [2023-08-25 03:15:49,144 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 145 flow [2023-08-25 03:15:49,147 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:15:49,155 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 71 transitions, 145 flow [2023-08-25 03:15:49,157 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 71 transitions, 145 flow [2023-08-25 03:15:49,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 145 flow [2023-08-25 03:15:49,201 INFO L124 PetriNetUnfolderBase]: 0/71 cut-off events. [2023-08-25 03:15:49,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:49,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:15:49,203 INFO L119 LiptonReduction]: Number of co-enabled transitions 1116 [2023-08-25 03:15:50,914 INFO L134 LiptonReduction]: Checked pairs total: 4982 [2023-08-25 03:15:50,914 INFO L136 LiptonReduction]: Total number of compositions: 48 [2023-08-25 03:15:50,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:15:50,949 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;@45b8241f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:15:50,953 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-25 03:15:50,956 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:15:50,956 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-08-25 03:15:50,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:50,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:15:50,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 03:15:50,958 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:15:50,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:15:50,963 INFO L85 PathProgramCache]: Analyzing trace with hash 237823, now seen corresponding path program 1 times [2023-08-25 03:15:50,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:15:50,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403252403] [2023-08-25 03:15:50,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:15:50,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:15:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:15:51,153 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 03:15:51,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:15:51,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403252403] [2023-08-25 03:15:51,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403252403] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:15:51,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:15:51,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 03:15:51,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194416005] [2023-08-25 03:15:51,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:15:51,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 03:15:51,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:15:51,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 03:15:51,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 03:15:51,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 120 [2023-08-25 03:15:51,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 59 flow. Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:15:51,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:15:51,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 120 [2023-08-25 03:15:51,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:15:51,253 INFO L124 PetriNetUnfolderBase]: 30/120 cut-off events. [2023-08-25 03:15:51,254 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:51,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 120 events. 30/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 434 event pairs, 30 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 189. Up to 74 conditions per place. [2023-08-25 03:15:51,258 INFO L140 encePairwiseOnDemand]: 118/120 looper letters, 13 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2023-08-25 03:15:51,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 81 flow [2023-08-25 03:15:51,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 03:15:51,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 03:15:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 157 transitions. [2023-08-25 03:15:51,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6541666666666667 [2023-08-25 03:15:51,271 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 157 transitions. [2023-08-25 03:15:51,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 157 transitions. [2023-08-25 03:15:51,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:15:51,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 157 transitions. [2023-08-25 03:15:51,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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 03:15:51,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 03:15:51,285 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 03:15:51,287 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 59 flow. Second operand 2 states and 157 transitions. [2023-08-25 03:15:51,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 81 flow [2023-08-25 03:15:51,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:15:51,291 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 54 flow [2023-08-25 03:15:51,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=54, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2023-08-25 03:15:51,298 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2023-08-25 03:15:51,298 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 54 flow [2023-08-25 03:15:51,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:15:51,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:15:51,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 03:15:51,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:15:51,299 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:15:51,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:15:51,300 INFO L85 PathProgramCache]: Analyzing trace with hash 7372374, now seen corresponding path program 1 times [2023-08-25 03:15:51,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:15:51,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619746548] [2023-08-25 03:15:51,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:15:51,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:15:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:15:51,371 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 03:15:51,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:15:51,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619746548] [2023-08-25 03:15:51,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619746548] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:15:51,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:15:51,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:15:51,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507115555] [2023-08-25 03:15:51,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:15:51,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:15:51,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:15:51,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:15:51,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:15:51,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 120 [2023-08-25 03:15:51,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 03:15:51,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:15:51,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 120 [2023-08-25 03:15:51,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:15:51,428 INFO L124 PetriNetUnfolderBase]: 36/136 cut-off events. [2023-08-25 03:15:51,428 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:51,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 136 events. 36/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 506 event pairs, 25 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 224. Up to 83 conditions per place. [2023-08-25 03:15:51,430 INFO L140 encePairwiseOnDemand]: 116/120 looper letters, 15 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-08-25 03:15:51,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 90 flow [2023-08-25 03:15:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:15:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:15:51,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2023-08-25 03:15:51,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5944444444444444 [2023-08-25 03:15:51,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2023-08-25 03:15:51,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2023-08-25 03:15:51,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:15:51,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2023-08-25 03:15:51,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 03:15:51,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 03:15:51,442 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 03:15:51,442 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 54 flow. Second operand 3 states and 214 transitions. [2023-08-25 03:15:51,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 90 flow [2023-08-25 03:15:51,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 90 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:15:51,444 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 64 flow [2023-08-25 03:15:51,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-08-25 03:15:51,445 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-08-25 03:15:51,445 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 64 flow [2023-08-25 03:15:51,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 03:15:51,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:15:51,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:15:51,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:15:51,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:15:51,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:15:51,447 INFO L85 PathProgramCache]: Analyzing trace with hash 116312954, now seen corresponding path program 1 times [2023-08-25 03:15:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:15:51,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804794222] [2023-08-25 03:15:51,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:15:51,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:15:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:15:51,757 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 03:15:51,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:15:51,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804794222] [2023-08-25 03:15:51,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804794222] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:15:51,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:15:51,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:15:51,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466943911] [2023-08-25 03:15:51,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:15:51,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:15:51,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:15:51,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:15:51,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:15:51,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 120 [2023-08-25 03:15:51,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 64 flow. Second operand has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 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 03:15:51,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:15:51,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 120 [2023-08-25 03:15:51,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:15:51,918 INFO L124 PetriNetUnfolderBase]: 126/285 cut-off events. [2023-08-25 03:15:51,919 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-08-25 03:15:51,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 285 events. 126/285 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1114 event pairs, 40 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 590. Up to 198 conditions per place. [2023-08-25 03:15:51,921 INFO L140 encePairwiseOnDemand]: 109/120 looper letters, 35 selfloop transitions, 22 changer transitions 8/67 dead transitions. [2023-08-25 03:15:51,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 67 transitions, 284 flow [2023-08-25 03:15:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:15:51,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:15:51,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 382 transitions. [2023-08-25 03:15:51,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5305555555555556 [2023-08-25 03:15:51,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 382 transitions. [2023-08-25 03:15:51,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 382 transitions. [2023-08-25 03:15:51,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:15:51,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 382 transitions. [2023-08-25 03:15:51,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 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 03:15:51,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 03:15:51,927 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 03:15:51,927 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 64 flow. Second operand 6 states and 382 transitions. [2023-08-25 03:15:51,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 67 transitions, 284 flow [2023-08-25 03:15:51,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 67 transitions, 284 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:15:51,929 INFO L231 Difference]: Finished difference. Result has 41 places, 47 transitions, 214 flow [2023-08-25 03:15:51,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=214, PETRI_PLACES=41, PETRI_TRANSITIONS=47} [2023-08-25 03:15:51,930 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2023-08-25 03:15:51,930 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 47 transitions, 214 flow [2023-08-25 03:15:51,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 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 03:15:51,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:15:51,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:15:51,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:15:51,931 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:15:51,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:15:51,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2142487667, now seen corresponding path program 1 times [2023-08-25 03:15:51,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:15:51,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529916246] [2023-08-25 03:15:51,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:15:51,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:15:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:15:52,194 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 03:15:52,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:15:52,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529916246] [2023-08-25 03:15:52,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529916246] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:15:52,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:15:52,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:15:52,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938741114] [2023-08-25 03:15:52,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:15:52,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:15:52,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:15:52,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:15:52,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:15:52,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 120 [2023-08-25 03:15:52,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 47 transitions, 214 flow. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 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 03:15:52,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:15:52,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 120 [2023-08-25 03:15:52,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:15:52,339 INFO L124 PetriNetUnfolderBase]: 157/349 cut-off events. [2023-08-25 03:15:52,339 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2023-08-25 03:15:52,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 349 events. 157/349 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1395 event pairs, 49 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 1030. Up to 265 conditions per place. [2023-08-25 03:15:52,342 INFO L140 encePairwiseOnDemand]: 110/120 looper letters, 61 selfloop transitions, 25 changer transitions 15/102 dead transitions. [2023-08-25 03:15:52,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 102 transitions, 640 flow [2023-08-25 03:15:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:15:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:15:52,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 396 transitions. [2023-08-25 03:15:52,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55 [2023-08-25 03:15:52,344 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 396 transitions. [2023-08-25 03:15:52,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 396 transitions. [2023-08-25 03:15:52,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:15:52,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 396 transitions. [2023-08-25 03:15:52,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 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 03:15:52,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 03:15:52,348 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 03:15:52,348 INFO L175 Difference]: Start difference. First operand has 41 places, 47 transitions, 214 flow. Second operand 6 states and 396 transitions. [2023-08-25 03:15:52,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 102 transitions, 640 flow [2023-08-25 03:15:52,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 102 transitions, 640 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:15:52,353 INFO L231 Difference]: Finished difference. Result has 50 places, 67 transitions, 402 flow [2023-08-25 03:15:52,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=402, PETRI_PLACES=50, PETRI_TRANSITIONS=67} [2023-08-25 03:15:52,353 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 18 predicate places. [2023-08-25 03:15:52,353 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 67 transitions, 402 flow [2023-08-25 03:15:52,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 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 03:15:52,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:15:52,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:15:52,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:15:52,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 03:15:52,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:15:52,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1385321164, now seen corresponding path program 1 times [2023-08-25 03:15:52,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:15:52,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5154175] [2023-08-25 03:15:52,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:15:52,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:15:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:15:52,433 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 03:15:52,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:15:52,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5154175] [2023-08-25 03:15:52,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5154175] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:15:52,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:15:52,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:15:52,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868363709] [2023-08-25 03:15:52,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:15:52,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:15:52,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:15:52,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:15:52,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:15:52,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 120 [2023-08-25 03:15:52,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 67 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 03:15:52,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:15:52,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 120 [2023-08-25 03:15:52,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:15:52,458 INFO L124 PetriNetUnfolderBase]: 11/70 cut-off events. [2023-08-25 03:15:52,459 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-25 03:15:52,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 70 events. 11/70 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 143 event pairs, 2 based on Foata normal form. 7/77 useless extension candidates. Maximal degree in co-relation 203. Up to 30 conditions per place. [2023-08-25 03:15:52,459 INFO L140 encePairwiseOnDemand]: 116/120 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2023-08-25 03:15:52,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 27 transitions, 157 flow [2023-08-25 03:15:52,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:15:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:15:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2023-08-25 03:15:52,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-08-25 03:15:52,467 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2023-08-25 03:15:52,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2023-08-25 03:15:52,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:15:52,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2023-08-25 03:15:52,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 03:15:52,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 03:15:52,470 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 03:15:52,471 INFO L175 Difference]: Start difference. First operand has 50 places, 67 transitions, 402 flow. Second operand 3 states and 200 transitions. [2023-08-25 03:15:52,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 27 transitions, 157 flow [2023-08-25 03:15:52,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 107 flow, removed 6 selfloop flow, removed 19 redundant places. [2023-08-25 03:15:52,474 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2023-08-25 03:15:52,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2023-08-25 03:15:52,477 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-08-25 03:15:52,477 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2023-08-25 03:15:52,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 03:15:52,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-25 03:15:52,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-25 03:15:52,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-25 03:15:52,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-25 03:15:52,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-25 03:15:52,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-25 03:15:52,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-25 03:15:52,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-25 03:15:52,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-25 03:15:52,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:15:52,482 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-25 03:15:52,487 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:15:52,487 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:15:52,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:15:52 BasicIcfg [2023-08-25 03:15:52,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:15:52,495 INFO L158 Benchmark]: Toolchain (without parser) took 4299.08ms. Allocated memory was 362.8MB in the beginning and 461.4MB in the end (delta: 98.6MB). Free memory was 338.0MB in the beginning and 303.8MB in the end (delta: 34.1MB). Peak memory consumption was 133.2MB. Max. memory is 16.0GB. [2023-08-25 03:15:52,495 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 362.8MB. Free memory is still 339.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:15:52,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.85ms. Allocated memory is still 362.8MB. Free memory was 338.0MB in the beginning and 319.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 03:15:52,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.77ms. Allocated memory is still 362.8MB. Free memory was 319.1MB in the beginning and 317.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:15:52,501 INFO L158 Benchmark]: Boogie Preprocessor took 26.52ms. Allocated memory is still 362.8MB. Free memory was 317.0MB in the beginning and 315.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:15:52,501 INFO L158 Benchmark]: RCFGBuilder took 291.95ms. Allocated memory is still 362.8MB. Free memory was 315.5MB in the beginning and 301.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 03:15:52,502 INFO L158 Benchmark]: TraceAbstraction took 3497.82ms. Allocated memory was 362.8MB in the beginning and 461.4MB in the end (delta: 98.6MB). Free memory was 301.2MB in the beginning and 303.8MB in the end (delta: -2.6MB). Peak memory consumption was 97.5MB. Max. memory is 16.0GB. [2023-08-25 03:15:52,503 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 362.8MB. Free memory is still 339.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 422.85ms. Allocated memory is still 362.8MB. Free memory was 338.0MB in the beginning and 319.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.77ms. Allocated memory is still 362.8MB. Free memory was 319.1MB in the beginning and 317.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.52ms. Allocated memory is still 362.8MB. Free memory was 317.0MB in the beginning and 315.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 291.95ms. Allocated memory is still 362.8MB. Free memory was 315.5MB in the beginning and 301.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3497.82ms. Allocated memory was 362.8MB in the beginning and 461.4MB in the end (delta: 98.6MB). Free memory was 301.2MB in the beginning and 303.8MB in the end (delta: -2.6MB). Peak memory consumption was 97.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 75 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 28 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 48 TotalNumberOfCompositions, 4982 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1633, independent: 1333, independent conditional: 0, independent unconditional: 1333, dependent: 300, dependent conditional: 0, dependent unconditional: 300, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 570, independent: 529, independent conditional: 0, independent unconditional: 529, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1633, independent: 804, independent conditional: 0, independent unconditional: 804, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 570, unknown conditional: 0, unknown unconditional: 570] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 691]: 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 - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: 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, 93 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: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 335 IncrementalHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 11 mSDtfsCounter, 335 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=4, InterpolantAutomatonStates: 20, 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, 0.7s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 03:15:52,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...