/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 -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 04:56:34,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 04:56:34,660 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 [2023-08-24 04:56:34,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 04:56:34,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 04:56:34,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 04:56:34,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 04:56:34,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 04:56:34,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 04:56:34,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 04:56:34,704 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 04:56:34,705 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 04:56:34,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 04:56:34,706 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 04:56:34,706 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 04:56:34,706 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 04:56:34,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 04:56:34,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 04:56:34,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 04:56:34,707 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 04:56:34,707 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 04:56:34,708 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 04:56:34,708 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 04:56:34,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 04:56:34,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 04:56:34,709 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 04:56:34,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 04:56:34,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 04:56:34,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 04:56:34,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 04:56:34,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 04:56:34,711 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 04:56:34,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 04:56:34,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 04:56:34,711 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 04:56:34,712 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-24 04:56:34,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 04:56:35,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 04:56:35,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 04:56:35,013 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 04:56:35,014 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 04:56:35,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i [2023-08-24 04:56:36,154 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 04:56:36,382 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 04:56:36,382 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i [2023-08-24 04:56:36,401 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4765494d3/4db786712098462697245a28759effa9/FLAG6b3c8949a [2023-08-24 04:56:36,417 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4765494d3/4db786712098462697245a28759effa9 [2023-08-24 04:56:36,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 04:56:36,423 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 04:56:36,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 04:56:36,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 04:56:36,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 04:56:36,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b745006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36, skipping insertion in model container [2023-08-24 04:56:36,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,481 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 04:56:36,752 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i[31163,31176] [2023-08-24 04:56:36,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 04:56:36,774 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 04:56:36,790 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-24 04:56:36,792 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-24 04:56:36,819 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i[31163,31176] [2023-08-24 04:56:36,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 04:56:36,861 INFO L206 MainTranslator]: Completed translation [2023-08-24 04:56:36,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36 WrapperNode [2023-08-24 04:56:36,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 04:56:36,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 04:56:36,864 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 04:56:36,864 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 04:56:36,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,923 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 188 [2023-08-24 04:56:36,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 04:56:36,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 04:56:36,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 04:56:36,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 04:56:36,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 04:56:36,957 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 04:56:36,957 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 04:56:36,957 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 04:56:36,958 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (1/1) ... [2023-08-24 04:56:36,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 04:56:36,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 04:56:36,984 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) [2023-08-24 04:56:36,989 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 [2023-08-24 04:56:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 04:56:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-24 04:56:37,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-24 04:56:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 04:56:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 04:56:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 04:56:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 04:56:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 04:56:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 04:56:37,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 04:56:37,022 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 04:56:37,155 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 04:56:37,157 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 04:56:37,461 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 04:56:37,626 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 04:56:37,626 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-24 04:56:37,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 04:56:37 BoogieIcfgContainer [2023-08-24 04:56:37,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 04:56:37,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 04:56:37,631 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 04:56:37,633 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 04:56:37,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 04:56:36" (1/3) ... [2023-08-24 04:56:37,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5035ed05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 04:56:37, skipping insertion in model container [2023-08-24 04:56:37,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:56:36" (2/3) ... [2023-08-24 04:56:37,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5035ed05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 04:56:37, skipping insertion in model container [2023-08-24 04:56:37,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 04:56:37" (3/3) ... [2023-08-24 04:56:37,636 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-2.i [2023-08-24 04:56:37,649 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 04:56:37,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 04:56:37,650 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 04:56:37,723 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:56:37,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2023-08-24 04:56:37,806 INFO L124 PetriNetUnfolderBase]: 11/124 cut-off events. [2023-08-24 04:56:37,806 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 04:56:37,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 11/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2023-08-24 04:56:37,812 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 114 transitions, 233 flow [2023-08-24 04:56:37,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 114 transitions, 233 flow [2023-08-24 04:56:37,818 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:56:37,825 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 114 transitions, 233 flow [2023-08-24 04:56:37,827 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 114 transitions, 233 flow [2023-08-24 04:56:37,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2023-08-24 04:56:37,879 INFO L124 PetriNetUnfolderBase]: 11/124 cut-off events. [2023-08-24 04:56:37,879 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 04:56:37,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 11/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2023-08-24 04:56:37,885 INFO L119 LiptonReduction]: Number of co-enabled transitions 2028 [2023-08-24 04:56:41,795 INFO L134 LiptonReduction]: Checked pairs total: 2167 [2023-08-24 04:56:41,795 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-08-24 04:56:41,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:56:41,816 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:56:41,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:56:41,819 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:56:41,819 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2023-08-24 04:56:41,819 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 04:56:41,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:56:41,820 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-24 04:56:41,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:56:41,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:56:41,824 INFO L85 PathProgramCache]: Analyzing trace with hash 174361225, now seen corresponding path program 1 times [2023-08-24 04:56:41,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:56:41,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078688515] [2023-08-24 04:56:41,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:56:41,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:56:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:56:41,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:56:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:56:41,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:56:41,988 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:56:41,989 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:56:41,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 04:56:41,991 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:56:41,995 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:56:41,996 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:56:41,996 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-24 04:56:42,062 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:56:42,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 193 transitions, 398 flow [2023-08-24 04:56:42,126 INFO L124 PetriNetUnfolderBase]: 21/215 cut-off events. [2023-08-24 04:56:42,127 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 04:56:42,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2023-08-24 04:56:42,132 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 193 transitions, 398 flow [2023-08-24 04:56:42,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 193 transitions, 398 flow [2023-08-24 04:56:42,134 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:56:42,134 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 193 transitions, 398 flow [2023-08-24 04:56:42,135 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 193 transitions, 398 flow [2023-08-24 04:56:42,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 193 transitions, 398 flow [2023-08-24 04:56:42,165 INFO L124 PetriNetUnfolderBase]: 21/215 cut-off events. [2023-08-24 04:56:42,166 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 04:56:42,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2023-08-24 04:56:42,175 INFO L119 LiptonReduction]: Number of co-enabled transitions 16380 [2023-08-24 04:56:46,830 INFO L134 LiptonReduction]: Checked pairs total: 33585 [2023-08-24 04:56:46,831 INFO L136 LiptonReduction]: Total number of compositions: 155 [2023-08-24 04:56:46,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:56:46,834 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:56:46,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:56:46,854 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:56:46,855 INFO L124 PetriNetUnfolderBase]: 4/34 cut-off events. [2023-08-24 04:56:46,855 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 04:56:46,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:56:46,855 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-24 04:56:46,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:56:46,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:56:46,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1971217253, now seen corresponding path program 1 times [2023-08-24 04:56:46,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:56:46,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653604040] [2023-08-24 04:56:46,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:56:46,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:56:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:56:46,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:56:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:56:46,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:56:46,908 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:56:46,908 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:56:46,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 04:56:46,908 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:56:46,909 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:56:46,909 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:56:46,909 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-24 04:56:46,979 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:56:46,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 272 transitions, 565 flow [2023-08-24 04:56:47,047 INFO L124 PetriNetUnfolderBase]: 31/306 cut-off events. [2023-08-24 04:56:47,048 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 04:56:47,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 306 events. 31/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 814 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2023-08-24 04:56:47,053 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 272 transitions, 565 flow [2023-08-24 04:56:47,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 272 transitions, 565 flow [2023-08-24 04:56:47,056 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:56:47,056 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 272 transitions, 565 flow [2023-08-24 04:56:47,056 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 272 transitions, 565 flow [2023-08-24 04:56:47,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 272 transitions, 565 flow [2023-08-24 04:56:47,103 INFO L124 PetriNetUnfolderBase]: 31/306 cut-off events. [2023-08-24 04:56:47,103 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 04:56:47,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 306 events. 31/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 814 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2023-08-24 04:56:47,127 INFO L119 LiptonReduction]: Number of co-enabled transitions 43056 [2023-08-24 04:56:53,047 INFO L134 LiptonReduction]: Checked pairs total: 78907 [2023-08-24 04:56:53,047 INFO L136 LiptonReduction]: Total number of compositions: 218 [2023-08-24 04:56:53,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:56:53,049 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:56:53,049 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:56:53,055 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:56:53,055 INFO L124 PetriNetUnfolderBase]: 8/62 cut-off events. [2023-08-24 04:56:53,056 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 04:56:53,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:56:53,056 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-24 04:56:53,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:56:53,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:56:53,057 INFO L85 PathProgramCache]: Analyzing trace with hash -271960691, now seen corresponding path program 1 times [2023-08-24 04:56:53,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:56:53,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20712212] [2023-08-24 04:56:53,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:56:53,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:56:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:56:53,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:56:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:56:53,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:56:53,105 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:56:53,105 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:56:53,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 04:56:53,106 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:56:53,106 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:56:53,106 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:56:53,106 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-24 04:56:53,177 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:56:53,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 351 transitions, 734 flow [2023-08-24 04:56:53,245 INFO L124 PetriNetUnfolderBase]: 41/397 cut-off events. [2023-08-24 04:56:53,248 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 04:56:53,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 397 events. 41/397 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1280 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 324. Up to 10 conditions per place. [2023-08-24 04:56:53,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 323 places, 351 transitions, 734 flow [2023-08-24 04:56:53,264 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 323 places, 351 transitions, 734 flow [2023-08-24 04:56:53,264 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:56:53,264 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 351 transitions, 734 flow [2023-08-24 04:56:53,264 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 351 transitions, 734 flow [2023-08-24 04:56:53,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 351 transitions, 734 flow [2023-08-24 04:56:53,372 INFO L124 PetriNetUnfolderBase]: 41/397 cut-off events. [2023-08-24 04:56:53,372 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 04:56:53,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 397 events. 41/397 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1280 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 324. Up to 10 conditions per place. [2023-08-24 04:56:53,397 INFO L119 LiptonReduction]: Number of co-enabled transitions 82056 [2023-08-24 04:57:00,932 INFO L134 LiptonReduction]: Checked pairs total: 163123 [2023-08-24 04:57:00,932 INFO L136 LiptonReduction]: Total number of compositions: 282 [2023-08-24 04:57:00,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:57:00,935 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:57:00,935 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:57:00,948 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:57:00,949 INFO L124 PetriNetUnfolderBase]: 16/101 cut-off events. [2023-08-24 04:57:00,949 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 04:57:00,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:57:00,949 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-08-24 04:57:00,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:57:00,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:57:00,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1535314522, now seen corresponding path program 1 times [2023-08-24 04:57:00,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:57:00,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317272617] [2023-08-24 04:57:00,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:57:00,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:57:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:00,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:57:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:01,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:57:01,018 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:57:01,019 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:57:01,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 04:57:01,019 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:57:01,020 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:57:01,020 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:57:01,020 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-24 04:57:01,104 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:01,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:01,214 INFO L124 PetriNetUnfolderBase]: 51/488 cut-off events. [2023-08-24 04:57:01,214 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 04:57:01,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 488 events. 51/488 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1751 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 410. Up to 12 conditions per place. [2023-08-24 04:57:01,225 INFO L82 GeneralOperation]: Start removeDead. Operand has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:01,231 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:01,231 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:01,231 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:01,231 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:01,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:01,314 INFO L124 PetriNetUnfolderBase]: 51/488 cut-off events. [2023-08-24 04:57:01,314 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 04:57:01,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 488 events. 51/488 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1751 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 410. Up to 12 conditions per place. [2023-08-24 04:57:01,350 INFO L119 LiptonReduction]: Number of co-enabled transitions 133380 [2023-08-24 04:57:10,204 INFO L134 LiptonReduction]: Checked pairs total: 266074 [2023-08-24 04:57:10,205 INFO L136 LiptonReduction]: Total number of compositions: 342 [2023-08-24 04:57:10,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:57:10,209 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:57:10,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:57:10,222 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:57:10,222 INFO L124 PetriNetUnfolderBase]: 22/128 cut-off events. [2023-08-24 04:57:10,222 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 04:57:10,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:57:10,222 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:57:10,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:57:10,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:57:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash -821437459, now seen corresponding path program 1 times [2023-08-24 04:57:10,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:57:10,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599328572] [2023-08-24 04:57:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:57:10,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:57:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:10,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:57:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:10,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:57:10,277 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:57:10,277 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:57:10,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 04:57:10,278 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:57:10,278 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:57:10,278 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:57:10,278 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-24 04:57:10,358 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:10,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:10,559 INFO L124 PetriNetUnfolderBase]: 61/579 cut-off events. [2023-08-24 04:57:10,559 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 04:57:10,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 579 events. 61/579 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2262 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 507. Up to 14 conditions per place. [2023-08-24 04:57:10,572 INFO L82 GeneralOperation]: Start removeDead. Operand has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:10,580 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:10,581 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:10,581 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:10,581 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:10,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:10,695 INFO L124 PetriNetUnfolderBase]: 61/579 cut-off events. [2023-08-24 04:57:10,696 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 04:57:10,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 579 events. 61/579 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2262 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 507. Up to 14 conditions per place. [2023-08-24 04:57:10,753 INFO L119 LiptonReduction]: Number of co-enabled transitions 197028 [2023-08-24 04:57:21,381 INFO L134 LiptonReduction]: Checked pairs total: 408501 [2023-08-24 04:57:21,381 INFO L136 LiptonReduction]: Total number of compositions: 409 [2023-08-24 04:57:21,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:57:21,383 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:57:21,383 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:57:21,401 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:57:21,401 INFO L124 PetriNetUnfolderBase]: 28/162 cut-off events. [2023-08-24 04:57:21,401 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 04:57:21,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:57:21,402 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:57:21,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:57:21,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:57:21,402 INFO L85 PathProgramCache]: Analyzing trace with hash 657747243, now seen corresponding path program 1 times [2023-08-24 04:57:21,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:57:21,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392122332] [2023-08-24 04:57:21,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:57:21,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:57:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:21,431 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:57:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:21,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:57:21,473 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:57:21,473 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:57:21,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 04:57:21,474 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:57:21,477 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:57:21,477 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:57:21,477 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-24 04:57:21,574 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:21,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 588 transitions, 1253 flow [2023-08-24 04:57:21,734 INFO L124 PetriNetUnfolderBase]: 71/670 cut-off events. [2023-08-24 04:57:21,737 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 04:57:21,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 670 events. 71/670 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2752 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-08-24 04:57:21,761 INFO L82 GeneralOperation]: Start removeDead. Operand has 539 places, 588 transitions, 1253 flow [2023-08-24 04:57:21,768 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 539 places, 588 transitions, 1253 flow [2023-08-24 04:57:21,769 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:21,769 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 539 places, 588 transitions, 1253 flow [2023-08-24 04:57:21,769 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 539 places, 588 transitions, 1253 flow [2023-08-24 04:57:21,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 588 transitions, 1253 flow [2023-08-24 04:57:21,948 INFO L124 PetriNetUnfolderBase]: 71/670 cut-off events. [2023-08-24 04:57:21,948 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 04:57:21,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 670 events. 71/670 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2752 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-08-24 04:57:22,022 INFO L119 LiptonReduction]: Number of co-enabled transitions 273000 [2023-08-24 04:57:34,238 INFO L134 LiptonReduction]: Checked pairs total: 601155 [2023-08-24 04:57:34,239 INFO L136 LiptonReduction]: Total number of compositions: 471 [2023-08-24 04:57:34,240 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:57:34,240 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:57:34,240 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:57:34,259 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:57:34,260 INFO L124 PetriNetUnfolderBase]: 36/197 cut-off events. [2023-08-24 04:57:34,260 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 04:57:34,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:57:34,260 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:57:34,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:57:34,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:57:34,260 INFO L85 PathProgramCache]: Analyzing trace with hash 31876957, now seen corresponding path program 1 times [2023-08-24 04:57:34,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:57:34,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746940760] [2023-08-24 04:57:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:57:34,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:57:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:34,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:57:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:34,310 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:57:34,310 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:57:34,310 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:57:34,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 04:57:34,311 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:57:34,311 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:57:34,311 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:57:34,311 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-24 04:57:34,419 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:34,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 667 transitions, 1430 flow [2023-08-24 04:57:34,707 INFO L124 PetriNetUnfolderBase]: 81/761 cut-off events. [2023-08-24 04:57:34,707 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 04:57:34,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 761 events. 81/761 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3271 event pairs, 0 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 704. Up to 18 conditions per place. [2023-08-24 04:57:34,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 611 places, 667 transitions, 1430 flow [2023-08-24 04:57:34,733 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 667 transitions, 1430 flow [2023-08-24 04:57:34,734 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:34,734 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 611 places, 667 transitions, 1430 flow [2023-08-24 04:57:34,734 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 611 places, 667 transitions, 1430 flow [2023-08-24 04:57:34,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 667 transitions, 1430 flow [2023-08-24 04:57:34,949 INFO L124 PetriNetUnfolderBase]: 81/761 cut-off events. [2023-08-24 04:57:34,950 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 04:57:34,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 761 events. 81/761 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3271 event pairs, 0 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 704. Up to 18 conditions per place. [2023-08-24 04:57:35,034 INFO L119 LiptonReduction]: Number of co-enabled transitions 361296 [2023-08-24 04:57:48,389 INFO L134 LiptonReduction]: Checked pairs total: 812240 [2023-08-24 04:57:48,389 INFO L136 LiptonReduction]: Total number of compositions: 534 [2023-08-24 04:57:48,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:57:48,391 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:57:48,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:57:48,418 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:57:48,418 INFO L124 PetriNetUnfolderBase]: 43/234 cut-off events. [2023-08-24 04:57:48,418 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 04:57:48,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:57:48,419 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:57:48,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:57:48,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:57:48,419 INFO L85 PathProgramCache]: Analyzing trace with hash -277617304, now seen corresponding path program 1 times [2023-08-24 04:57:48,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:57:48,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819048710] [2023-08-24 04:57:48,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:57:48,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:57:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:48,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:57:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:48,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:57:48,459 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:57:48,459 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:57:48,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 04:57:48,460 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:57:48,461 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:57:48,461 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:57:48,462 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-24 04:57:48,578 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:48,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 746 transitions, 1609 flow [2023-08-24 04:57:48,851 INFO L124 PetriNetUnfolderBase]: 91/852 cut-off events. [2023-08-24 04:57:48,851 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 04:57:48,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 852 events. 91/852 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3787 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 804. Up to 20 conditions per place. [2023-08-24 04:57:48,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 683 places, 746 transitions, 1609 flow [2023-08-24 04:57:48,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 683 places, 746 transitions, 1609 flow [2023-08-24 04:57:48,893 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:48,893 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 683 places, 746 transitions, 1609 flow [2023-08-24 04:57:48,894 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 683 places, 746 transitions, 1609 flow [2023-08-24 04:57:48,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 746 transitions, 1609 flow [2023-08-24 04:57:49,073 INFO L124 PetriNetUnfolderBase]: 91/852 cut-off events. [2023-08-24 04:57:49,074 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 04:57:49,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 852 events. 91/852 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3787 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 804. Up to 20 conditions per place. [2023-08-24 04:57:49,167 INFO L119 LiptonReduction]: Number of co-enabled transitions 461916 [2023-08-24 04:58:04,697 INFO L134 LiptonReduction]: Checked pairs total: 929047 [2023-08-24 04:58:04,698 INFO L136 LiptonReduction]: Total number of compositions: 598 [2023-08-24 04:58:04,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:58:04,700 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:58:04,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:58:04,726 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:58:04,726 INFO L124 PetriNetUnfolderBase]: 50/267 cut-off events. [2023-08-24 04:58:04,726 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 04:58:04,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:58:04,726 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:58:04,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:58:04,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:58:04,727 INFO L85 PathProgramCache]: Analyzing trace with hash -392173397, now seen corresponding path program 1 times [2023-08-24 04:58:04,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:58:04,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722299852] [2023-08-24 04:58:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:58:04,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:58:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:04,751 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:58:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:04,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:58:04,772 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:58:04,772 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:58:04,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 04:58:04,772 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:58:04,772 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:58:04,772 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:58:04,773 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-24 04:58:04,898 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:58:04,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:05,130 INFO L124 PetriNetUnfolderBase]: 101/943 cut-off events. [2023-08-24 04:58:05,130 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 04:58:05,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 943 events. 101/943 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4319 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 905. Up to 22 conditions per place. [2023-08-24 04:58:05,175 INFO L82 GeneralOperation]: Start removeDead. Operand has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:05,188 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:05,188 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:58:05,188 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:05,188 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:05,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:05,465 INFO L124 PetriNetUnfolderBase]: 101/943 cut-off events. [2023-08-24 04:58:05,465 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 04:58:05,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 943 events. 101/943 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4319 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 905. Up to 22 conditions per place. [2023-08-24 04:58:05,640 INFO L119 LiptonReduction]: Number of co-enabled transitions 574860 [2023-08-24 04:58:22,576 INFO L134 LiptonReduction]: Checked pairs total: 1167442 [2023-08-24 04:58:22,576 INFO L136 LiptonReduction]: Total number of compositions: 663 [2023-08-24 04:58:22,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:58:22,578 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:58:22,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:58:22,612 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:58:22,613 INFO L124 PetriNetUnfolderBase]: 57/301 cut-off events. [2023-08-24 04:58:22,613 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 04:58:22,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:58:22,613 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:58:22,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:58:22,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:58:22,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1279378807, now seen corresponding path program 1 times [2023-08-24 04:58:22,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:58:22,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977440927] [2023-08-24 04:58:22,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:58:22,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:58:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:22,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:58:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:22,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:58:22,660 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:58:22,660 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:58:22,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 04:58:22,660 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:58:22,660 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:58:22,660 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:58:22,661 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-24 04:58:22,793 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:58:22,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 827 places, 904 transitions, 1973 flow [2023-08-24 04:58:23,147 INFO L124 PetriNetUnfolderBase]: 111/1034 cut-off events. [2023-08-24 04:58:23,147 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 04:58:23,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1034 events. 111/1034 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4832 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1009. Up to 24 conditions per place. [2023-08-24 04:58:23,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 827 places, 904 transitions, 1973 flow [2023-08-24 04:58:23,196 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 827 places, 904 transitions, 1973 flow [2023-08-24 04:58:23,196 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:58:23,197 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 827 places, 904 transitions, 1973 flow [2023-08-24 04:58:23,197 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 827 places, 904 transitions, 1973 flow [2023-08-24 04:58:23,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 827 places, 904 transitions, 1973 flow [2023-08-24 04:58:23,470 INFO L124 PetriNetUnfolderBase]: 111/1034 cut-off events. [2023-08-24 04:58:23,470 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 04:58:23,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1034 events. 111/1034 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4832 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1009. Up to 24 conditions per place. [2023-08-24 04:58:23,669 INFO L119 LiptonReduction]: Number of co-enabled transitions 700128 [2023-08-24 04:58:41,916 INFO L134 LiptonReduction]: Checked pairs total: 1457710 [2023-08-24 04:58:41,917 INFO L136 LiptonReduction]: Total number of compositions: 726 [2023-08-24 04:58:41,918 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:58:41,918 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:58:41,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:58:41,967 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:58:41,967 INFO L124 PetriNetUnfolderBase]: 64/332 cut-off events. [2023-08-24 04:58:41,967 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 04:58:41,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:58:41,967 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:58:41,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:58:41,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:58:41,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2091456884, now seen corresponding path program 1 times [2023-08-24 04:58:41,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:58:41,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718032731] [2023-08-24 04:58:41,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:58:41,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:58:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:42,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:58:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:42,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:58:42,048 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:58:42,048 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:58:42,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 04:58:42,049 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:58:42,049 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:58:42,049 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:58:42,049 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-24 04:58:42,211 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:58:42,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 983 transitions, 2158 flow [2023-08-24 04:58:42,618 INFO L124 PetriNetUnfolderBase]: 121/1125 cut-off events. [2023-08-24 04:58:42,618 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 04:58:42,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1125 events. 121/1125 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5341 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1114. Up to 26 conditions per place. [2023-08-24 04:58:42,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 899 places, 983 transitions, 2158 flow [2023-08-24 04:58:42,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 899 places, 983 transitions, 2158 flow [2023-08-24 04:58:42,670 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:58:42,670 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 899 places, 983 transitions, 2158 flow [2023-08-24 04:58:42,670 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 899 places, 983 transitions, 2158 flow [2023-08-24 04:58:42,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 983 transitions, 2158 flow [2023-08-24 04:58:43,034 INFO L124 PetriNetUnfolderBase]: 121/1125 cut-off events. [2023-08-24 04:58:43,034 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 04:58:43,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1125 events. 121/1125 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5341 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1114. Up to 26 conditions per place. [2023-08-24 04:58:43,196 INFO L119 LiptonReduction]: Number of co-enabled transitions 837720 [2023-08-24 04:59:03,541 INFO L134 LiptonReduction]: Checked pairs total: 1744929 [2023-08-24 04:59:03,541 INFO L136 LiptonReduction]: Total number of compositions: 788 [2023-08-24 04:59:03,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:59:03,542 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:59:03,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:59:03,585 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:59:03,585 INFO L124 PetriNetUnfolderBase]: 70/367 cut-off events. [2023-08-24 04:59:03,585 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 04:59:03,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:59:03,585 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:59:03,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:59:03,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:59:03,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1844041229, now seen corresponding path program 1 times [2023-08-24 04:59:03,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:59:03,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484205659] [2023-08-24 04:59:03,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:59:03,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:59:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:03,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:59:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:03,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:59:03,642 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:59:03,643 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:59:03,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 04:59:03,643 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:59:03,643 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:59:03,643 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:59:03,644 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-24 04:59:03,803 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:59:03,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:04,204 INFO L124 PetriNetUnfolderBase]: 131/1216 cut-off events. [2023-08-24 04:59:04,204 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 04:59:04,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1216 events. 131/1216 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5848 event pairs, 0 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1220. Up to 28 conditions per place. [2023-08-24 04:59:04,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:04,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:04,266 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:59:04,266 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:04,266 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:04,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:04,624 INFO L124 PetriNetUnfolderBase]: 131/1216 cut-off events. [2023-08-24 04:59:04,624 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 04:59:04,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1216 events. 131/1216 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5848 event pairs, 0 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1220. Up to 28 conditions per place. [2023-08-24 04:59:04,806 INFO L119 LiptonReduction]: Number of co-enabled transitions 987636 [2023-08-24 04:59:26,682 INFO L134 LiptonReduction]: Checked pairs total: 2255991 [2023-08-24 04:59:26,683 INFO L136 LiptonReduction]: Total number of compositions: 848 [2023-08-24 04:59:26,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:59:26,684 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:59:26,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:59:26,732 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:59:26,733 INFO L124 PetriNetUnfolderBase]: 79/407 cut-off events. [2023-08-24 04:59:26,733 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 04:59:26,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:59:26,733 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:59:26,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:59:26,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:59:26,733 INFO L85 PathProgramCache]: Analyzing trace with hash -268375454, now seen corresponding path program 1 times [2023-08-24 04:59:26,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:59:26,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203324539] [2023-08-24 04:59:26,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:59:26,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:59:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:26,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:59:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:26,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:59:26,790 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:59:26,790 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:59:26,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-24 04:59:26,791 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:59:26,791 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:59:26,791 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:59:26,791 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-24 04:59:26,951 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:59:26,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:27,485 INFO L124 PetriNetUnfolderBase]: 141/1307 cut-off events. [2023-08-24 04:59:27,485 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 04:59:27,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1307 events. 141/1307 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6367 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1327. Up to 30 conditions per place. [2023-08-24 04:59:27,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:27,544 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:27,544 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:59:27,544 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:27,544 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:27,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:27,925 INFO L124 PetriNetUnfolderBase]: 141/1307 cut-off events. [2023-08-24 04:59:27,925 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 04:59:27,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1307 events. 141/1307 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6367 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1327. Up to 30 conditions per place. [2023-08-24 04:59:28,170 INFO L119 LiptonReduction]: Number of co-enabled transitions 1149876 [2023-08-24 04:59:51,970 INFO L134 LiptonReduction]: Checked pairs total: 2617201 [2023-08-24 04:59:51,970 INFO L136 LiptonReduction]: Total number of compositions: 914 [2023-08-24 04:59:51,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:59:51,972 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:59:51,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:59:52,069 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:59:52,069 INFO L124 PetriNetUnfolderBase]: 84/437 cut-off events. [2023-08-24 04:59:52,069 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 04:59:52,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:59:52,069 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:59:52,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:59:52,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:59:52,070 INFO L85 PathProgramCache]: Analyzing trace with hash 72312746, now seen corresponding path program 1 times [2023-08-24 04:59:52,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:59:52,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122628329] [2023-08-24 04:59:52,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:59:52,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:59:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:52,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:59:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:52,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:59:52,126 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:59:52,126 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:59:52,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-24 04:59:52,126 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:59:52,127 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:59:52,127 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:59:52,127 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-24 04:59:52,318 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:59:52,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1220 transitions, 2725 flow [2023-08-24 04:59:52,785 INFO L124 PetriNetUnfolderBase]: 151/1398 cut-off events. [2023-08-24 04:59:52,786 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 04:59:52,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1398 events. 151/1398 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6913 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1435. Up to 32 conditions per place. [2023-08-24 04:59:52,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 1115 places, 1220 transitions, 2725 flow [2023-08-24 04:59:52,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1115 places, 1220 transitions, 2725 flow [2023-08-24 04:59:52,875 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:59:52,875 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1115 places, 1220 transitions, 2725 flow [2023-08-24 04:59:52,875 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1115 places, 1220 transitions, 2725 flow [2023-08-24 04:59:52,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1220 transitions, 2725 flow [2023-08-24 04:59:53,402 INFO L124 PetriNetUnfolderBase]: 151/1398 cut-off events. [2023-08-24 04:59:53,402 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 04:59:53,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1398 events. 151/1398 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6913 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1435. Up to 32 conditions per place. [2023-08-24 04:59:53,625 INFO L119 LiptonReduction]: Number of co-enabled transitions 1324440 [2023-08-24 05:00:20,200 INFO L134 LiptonReduction]: Checked pairs total: 2975786 [2023-08-24 05:00:20,201 INFO L136 LiptonReduction]: Total number of compositions: 974 [2023-08-24 05:00:20,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:00:20,202 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:00:20,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:00:20,285 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:00:20,285 INFO L124 PetriNetUnfolderBase]: 91/469 cut-off events. [2023-08-24 05:00:20,285 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 05:00:20,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:00:20,285 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:00:20,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:00:20,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:00:20,286 INFO L85 PathProgramCache]: Analyzing trace with hash 459114490, now seen corresponding path program 1 times [2023-08-24 05:00:20,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:00:20,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312334679] [2023-08-24 05:00:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:00:20,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:00:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:00:20,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:00:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:00:20,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:00:20,354 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:00:20,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:00:20,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-24 05:00:20,354 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:00:20,355 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:00:20,355 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:00:20,355 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-24 05:00:20,552 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:00:20,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:21,304 INFO L124 PetriNetUnfolderBase]: 161/1489 cut-off events. [2023-08-24 05:00:21,305 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 05:00:21,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1489 events. 161/1489 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7400 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1544. Up to 34 conditions per place. [2023-08-24 05:00:21,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:21,382 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:21,382 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:00:21,382 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:21,382 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:21,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:21,930 INFO L124 PetriNetUnfolderBase]: 161/1489 cut-off events. [2023-08-24 05:00:21,931 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 05:00:22,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1489 events. 161/1489 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7400 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1544. Up to 34 conditions per place. [2023-08-24 05:00:22,280 INFO L119 LiptonReduction]: Number of co-enabled transitions 1511328 [2023-08-24 05:00:50,733 INFO L134 LiptonReduction]: Checked pairs total: 3418394 [2023-08-24 05:00:50,734 INFO L136 LiptonReduction]: Total number of compositions: 1043 [2023-08-24 05:00:50,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:00:50,736 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:00:50,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:00:50,816 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:00:50,816 INFO L124 PetriNetUnfolderBase]: 98/507 cut-off events. [2023-08-24 05:00:50,816 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 05:00:50,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:00:50,817 INFO L208 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:00:50,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:00:50,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:00:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1151175113, now seen corresponding path program 1 times [2023-08-24 05:00:50,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:00:50,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241190578] [2023-08-24 05:00:50,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:00:50,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:00:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:00:50,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:00:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:00:50,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:00:50,893 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:00:50,893 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:00:50,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-24 05:00:50,893 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:00:50,893 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:00:50,893 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:00:50,893 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-24 05:00:51,098 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:00:51,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:00:51,755 INFO L124 PetriNetUnfolderBase]: 171/1580 cut-off events. [2023-08-24 05:00:51,755 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 05:00:51,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 1580 events. 171/1580 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7910 event pairs, 0 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 1654. Up to 36 conditions per place. [2023-08-24 05:00:51,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:00:51,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:00:51,891 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:00:51,891 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:00:51,891 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:00:51,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:00:52,546 INFO L124 PetriNetUnfolderBase]: 171/1580 cut-off events. [2023-08-24 05:00:52,546 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 05:00:52,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 1580 events. 171/1580 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7910 event pairs, 0 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 1654. Up to 36 conditions per place. [2023-08-24 05:00:52,875 INFO L119 LiptonReduction]: Number of co-enabled transitions 1710540 [2023-08-24 05:01:22,883 INFO L134 LiptonReduction]: Checked pairs total: 3860000 [2023-08-24 05:01:22,883 INFO L136 LiptonReduction]: Total number of compositions: 1094 [2023-08-24 05:01:22,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:01:22,885 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:01:22,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:01:22,968 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:01:22,968 INFO L124 PetriNetUnfolderBase]: 106/540 cut-off events. [2023-08-24 05:01:22,969 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 05:01:22,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:01:22,969 INFO L208 CegarLoopForPetriNet]: trace histogram [18, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:01:22,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:01:22,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:01:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash 2044922245, now seen corresponding path program 1 times [2023-08-24 05:01:22,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:01:22,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113814004] [2023-08-24 05:01:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:01:22,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:01:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:01:23,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:01:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:01:23,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:01:23,072 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:01:23,072 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:01:23,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-24 05:01:23,073 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:01:23,073 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:01:23,073 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:01:23,073 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-24 05:01:23,302 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:01:23,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:24,026 INFO L124 PetriNetUnfolderBase]: 181/1671 cut-off events. [2023-08-24 05:01:24,026 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 05:01:24,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1671 events. 181/1671 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8434 event pairs, 0 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1765. Up to 38 conditions per place. [2023-08-24 05:01:24,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:24,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:24,170 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:01:24,171 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:24,171 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:24,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:24,860 INFO L124 PetriNetUnfolderBase]: 181/1671 cut-off events. [2023-08-24 05:01:24,860 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 05:01:24,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1671 events. 181/1671 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8434 event pairs, 0 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1765. Up to 38 conditions per place. [2023-08-24 05:01:25,288 INFO L119 LiptonReduction]: Number of co-enabled transitions 1922076 [2023-08-24 05:01:58,186 INFO L134 LiptonReduction]: Checked pairs total: 4368552 [2023-08-24 05:01:58,188 INFO L136 LiptonReduction]: Total number of compositions: 1165 [2023-08-24 05:01:58,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:01:58,190 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:01:58,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:01:58,281 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:01:58,281 INFO L124 PetriNetUnfolderBase]: 113/575 cut-off events. [2023-08-24 05:01:58,281 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 05:01:58,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:01:58,281 INFO L208 CegarLoopForPetriNet]: trace histogram [19, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:01:58,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:01:58,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:01:58,281 INFO L85 PathProgramCache]: Analyzing trace with hash -28340825, now seen corresponding path program 1 times [2023-08-24 05:01:58,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:01:58,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878452025] [2023-08-24 05:01:58,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:01:58,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:01:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:01:58,317 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:01:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:01:58,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:01:58,356 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:01:58,356 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:01:58,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-24 05:01:58,356 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:01:58,357 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:01:58,357 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:01:58,357 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-24 05:01:58,602 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:01:58,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:01:59,410 INFO L124 PetriNetUnfolderBase]: 191/1762 cut-off events. [2023-08-24 05:01:59,411 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 05:01:59,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1762 events. 191/1762 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8943 event pairs, 0 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 1877. Up to 40 conditions per place. [2023-08-24 05:01:59,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:01:59,564 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:01:59,564 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:01:59,564 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:01:59,564 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:01:59,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:02:00,351 INFO L124 PetriNetUnfolderBase]: 191/1762 cut-off events. [2023-08-24 05:02:00,351 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 05:02:00,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1762 events. 191/1762 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8943 event pairs, 0 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 1877. Up to 40 conditions per place. [2023-08-24 05:02:00,791 INFO L119 LiptonReduction]: Number of co-enabled transitions 2145936 [2023-08-24 05:02:35,382 INFO L134 LiptonReduction]: Checked pairs total: 4909396 [2023-08-24 05:02:35,383 INFO L136 LiptonReduction]: Total number of compositions: 1227 [2023-08-24 05:02:35,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:02:35,385 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:02:35,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:02:35,487 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:02:35,487 INFO L124 PetriNetUnfolderBase]: 120/608 cut-off events. [2023-08-24 05:02:35,487 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 05:02:35,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:02:35,487 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:02:35,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:02:35,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:02:35,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1576653855, now seen corresponding path program 1 times [2023-08-24 05:02:35,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:02:35,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284142464] [2023-08-24 05:02:35,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:02:35,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:02:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:02:35,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:02:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:02:35,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:02:35,569 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:02:35,570 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:02:35,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-24 05:02:35,570 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:02:35,570 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:02:35,570 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:02:35,570 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-24 05:02:35,806 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:02:35,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:36,794 INFO L124 PetriNetUnfolderBase]: 201/1853 cut-off events. [2023-08-24 05:02:36,795 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 05:02:36,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1853 events. 201/1853 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9439 event pairs, 0 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 1990. Up to 42 conditions per place. [2023-08-24 05:02:36,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:36,983 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:36,984 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:02:36,984 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:36,984 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:36,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:37,889 INFO L124 PetriNetUnfolderBase]: 201/1853 cut-off events. [2023-08-24 05:02:37,889 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 05:02:38,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1853 events. 201/1853 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9439 event pairs, 0 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 1990. Up to 42 conditions per place. [2023-08-24 05:02:38,688 INFO L119 LiptonReduction]: Number of co-enabled transitions 2382120 [2023-08-24 05:03:14,564 INFO L134 LiptonReduction]: Checked pairs total: 5438150 [2023-08-24 05:03:14,565 INFO L136 LiptonReduction]: Total number of compositions: 1292 [2023-08-24 05:03:14,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:03:14,566 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:03:14,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:03:14,690 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:03:14,690 INFO L124 PetriNetUnfolderBase]: 126/642 cut-off events. [2023-08-24 05:03:14,690 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 05:03:14,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:03:14,690 INFO L208 CegarLoopForPetriNet]: trace histogram [21, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:03:14,691 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:03:14,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:03:14,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1517417906, now seen corresponding path program 1 times [2023-08-24 05:03:14,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:03:14,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397098210] [2023-08-24 05:03:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:03:14,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:03:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:03:14,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:03:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:03:14,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:03:14,775 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:03:14,775 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:03:14,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-24 05:03:14,775 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:03:14,775 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:03:14,775 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:03:14,775 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-24 05:03:15,019 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:03:15,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:16,161 INFO L124 PetriNetUnfolderBase]: 211/1944 cut-off events. [2023-08-24 05:03:16,161 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 05:03:16,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1944 events. 211/1944 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9979 event pairs, 0 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 2104. Up to 44 conditions per place. [2023-08-24 05:03:16,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:16,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:16,317 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:03:16,318 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:16,318 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:16,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:17,460 INFO L124 PetriNetUnfolderBase]: 211/1944 cut-off events. [2023-08-24 05:03:17,460 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 05:03:17,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1944 events. 211/1944 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9979 event pairs, 0 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 2104. Up to 44 conditions per place. [2023-08-24 05:03:18,146 INFO L119 LiptonReduction]: Number of co-enabled transitions 2630628 [2023-08-24 05:03:55,834 INFO L134 LiptonReduction]: Checked pairs total: 6023620 [2023-08-24 05:03:55,834 INFO L136 LiptonReduction]: Total number of compositions: 1352 [2023-08-24 05:03:55,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:03:55,836 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:03:55,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:03:55,974 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:03:55,974 INFO L124 PetriNetUnfolderBase]: 133/679 cut-off events. [2023-08-24 05:03:55,974 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 05:03:55,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:03:55,974 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:03:55,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:03:55,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:03:55,981 INFO L85 PathProgramCache]: Analyzing trace with hash 487342399, now seen corresponding path program 1 times [2023-08-24 05:03:55,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:03:55,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579782767] [2023-08-24 05:03:55,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:03:55,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:03:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:03:56,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:03:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:03:56,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:03:56,070 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:03:56,071 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:03:56,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-24 05:03:56,071 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:03:56,071 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:03:56,071 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:03:56,071 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-08-24 05:03:56,290 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:03:56,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:03:57,634 INFO L124 PetriNetUnfolderBase]: 221/2035 cut-off events. [2023-08-24 05:03:57,634 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 05:03:57,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 2035 events. 221/2035 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10464 event pairs, 0 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 2219. Up to 46 conditions per place. [2023-08-24 05:03:57,772 INFO L82 GeneralOperation]: Start removeDead. Operand has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:03:57,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:03:57,802 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:03:57,802 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:03:57,802 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:03:57,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:03:59,203 INFO L124 PetriNetUnfolderBase]: 221/2035 cut-off events. [2023-08-24 05:03:59,203 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 05:03:59,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 2035 events. 221/2035 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10464 event pairs, 0 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 2219. Up to 46 conditions per place. [2023-08-24 05:03:59,902 INFO L119 LiptonReduction]: Number of co-enabled transitions 2891460 [2023-08-24 05:04:39,970 INFO L134 LiptonReduction]: Checked pairs total: 5961511 [2023-08-24 05:04:39,970 INFO L136 LiptonReduction]: Total number of compositions: 1418 [2023-08-24 05:04:39,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:04:39,972 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:04:39,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:04:40,131 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:04:40,131 INFO L124 PetriNetUnfolderBase]: 141/711 cut-off events. [2023-08-24 05:04:40,131 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 05:04:40,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:04:40,131 INFO L208 CegarLoopForPetriNet]: trace histogram [23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:04:40,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:04:40,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:04:40,131 INFO L85 PathProgramCache]: Analyzing trace with hash -232205019, now seen corresponding path program 1 times [2023-08-24 05:04:40,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:04:40,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284945497] [2023-08-24 05:04:40,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:04:40,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:04:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:04:40,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:04:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:04:40,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:04:40,223 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:04:40,223 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:04:40,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-24 05:04:40,223 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:04:40,224 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:04:40,224 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:04:40,224 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-08-24 05:04:40,450 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:04:40,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:41,811 INFO L124 PetriNetUnfolderBase]: 231/2126 cut-off events. [2023-08-24 05:04:41,811 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 05:04:41,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 2126 events. 231/2126 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10988 event pairs, 0 based on Foata normal form. 0/1848 useless extension candidates. Maximal degree in co-relation 2335. Up to 48 conditions per place. [2023-08-24 05:04:41,952 INFO L82 GeneralOperation]: Start removeDead. Operand has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:42,156 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:42,156 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:04:42,156 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:42,156 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:42,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:43,408 INFO L124 PetriNetUnfolderBase]: 231/2126 cut-off events. [2023-08-24 05:04:43,409 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 05:04:43,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 2126 events. 231/2126 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10988 event pairs, 0 based on Foata normal form. 0/1848 useless extension candidates. Maximal degree in co-relation 2335. Up to 48 conditions per place. [2023-08-24 05:04:44,228 INFO L119 LiptonReduction]: Number of co-enabled transitions 3164616 [2023-08-24 05:05:25,451 INFO L134 LiptonReduction]: Checked pairs total: 6441936 [2023-08-24 05:05:25,451 INFO L136 LiptonReduction]: Total number of compositions: 1478 [2023-08-24 05:05:25,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:05:25,453 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:05:25,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:05:25,596 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:05:25,596 INFO L124 PetriNetUnfolderBase]: 148/745 cut-off events. [2023-08-24 05:05:25,596 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 05:05:25,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:05:25,597 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:05:25,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:05:25,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:05:25,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1237637143, now seen corresponding path program 1 times [2023-08-24 05:05:25,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:05:25,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991360159] [2023-08-24 05:05:25,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:05:25,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:05:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:05:25,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:05:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:05:25,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:05:25,705 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:05:25,705 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:05:25,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-24 05:05:25,705 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:05:25,706 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:05:25,706 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:05:25,706 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-08-24 05:05:25,934 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:05:25,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:27,441 INFO L124 PetriNetUnfolderBase]: 241/2217 cut-off events. [2023-08-24 05:05:27,442 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 05:05:27,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2217 events. 241/2217 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 11496 event pairs, 0 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2452. Up to 50 conditions per place. [2023-08-24 05:05:27,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:27,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:27,818 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:05:27,818 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:27,819 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:27,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:29,155 INFO L124 PetriNetUnfolderBase]: 241/2217 cut-off events. [2023-08-24 05:05:29,155 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 05:05:29,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2217 events. 241/2217 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 11496 event pairs, 0 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2452. Up to 50 conditions per place. [2023-08-24 05:05:29,901 INFO L119 LiptonReduction]: Number of co-enabled transitions 3450096 [2023-08-24 05:06:12,613 INFO L134 LiptonReduction]: Checked pairs total: 7116348 [2023-08-24 05:06:12,613 INFO L136 LiptonReduction]: Total number of compositions: 1545 [2023-08-24 05:06:12,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:06:12,615 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:06:12,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:06:12,769 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:06:12,769 INFO L124 PetriNetUnfolderBase]: 155/780 cut-off events. [2023-08-24 05:06:12,769 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 05:06:12,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:06:12,769 INFO L208 CegarLoopForPetriNet]: trace histogram [25, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:06:12,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:06:12,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:06:12,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1713990933, now seen corresponding path program 1 times [2023-08-24 05:06:12,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:06:12,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777517217] [2023-08-24 05:06:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:06:12,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:06:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:06:12,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:06:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:06:12,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:06:12,867 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:06:12,868 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:06:12,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-24 05:06:12,868 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:06:12,868 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:06:12,868 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:06:12,868 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-08-24 05:06:13,155 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:06:13,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:14,674 INFO L124 PetriNetUnfolderBase]: 251/2308 cut-off events. [2023-08-24 05:06:14,674 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 05:06:14,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2308 events. 251/2308 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11993 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 2570. Up to 52 conditions per place. [2023-08-24 05:06:14,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:14,886 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:14,886 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:06:14,886 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:14,886 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:14,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:16,450 INFO L124 PetriNetUnfolderBase]: 251/2308 cut-off events. [2023-08-24 05:06:16,450 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 05:06:16,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2308 events. 251/2308 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11993 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 2570. Up to 52 conditions per place. [2023-08-24 05:06:17,369 INFO L119 LiptonReduction]: Number of co-enabled transitions 3747900 [2023-08-24 05:07:03,002 INFO L134 LiptonReduction]: Checked pairs total: 7669208 [2023-08-24 05:07:03,002 INFO L136 LiptonReduction]: Total number of compositions: 1604 [2023-08-24 05:07:03,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:07:03,004 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:07:03,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:07:03,174 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:07:03,174 INFO L124 PetriNetUnfolderBase]: 162/816 cut-off events. [2023-08-24 05:07:03,174 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 05:07:03,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:07:03,175 INFO L208 CegarLoopForPetriNet]: trace histogram [26, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:07:03,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:07:03,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:07:03,175 INFO L85 PathProgramCache]: Analyzing trace with hash 782955840, now seen corresponding path program 1 times [2023-08-24 05:07:03,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:07:03,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106109651] [2023-08-24 05:07:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:07:03,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:07:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:07:03,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:07:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:07:03,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:07:03,314 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:07:03,314 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:07:03,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-24 05:07:03,314 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:07:03,315 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:07:03,315 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:07:03,315 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-08-24 05:07:03,599 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:07:03,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:07:05,276 INFO L124 PetriNetUnfolderBase]: 261/2399 cut-off events. [2023-08-24 05:07:05,276 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 05:07:05,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2399 events. 261/2399 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12492 event pairs, 0 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 2689. Up to 54 conditions per place. [2023-08-24 05:07:05,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:07:05,490 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:07:05,490 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:07:05,490 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:07:05,490 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:07:05,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:07:07,200 INFO L124 PetriNetUnfolderBase]: 261/2399 cut-off events. [2023-08-24 05:07:07,200 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 05:07:07,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2399 events. 261/2399 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12492 event pairs, 0 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 2689. Up to 54 conditions per place. [2023-08-24 05:07:07,969 INFO L119 LiptonReduction]: Number of co-enabled transitions 4058028 [2023-08-24 05:07:56,112 INFO L134 LiptonReduction]: Checked pairs total: 9032144 [2023-08-24 05:07:56,112 INFO L136 LiptonReduction]: Total number of compositions: 1674 [2023-08-24 05:07:56,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:07:56,114 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;@57bddb21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:07:56,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:07:56,301 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:07:56,301 INFO L124 PetriNetUnfolderBase]: 170/850 cut-off events. [2023-08-24 05:07:56,301 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 05:07:56,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:07:56,301 INFO L208 CegarLoopForPetriNet]: trace histogram [27, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:07:56,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:07:56,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:07:56,302 INFO L85 PathProgramCache]: Analyzing trace with hash -376605358, now seen corresponding path program 1 times [2023-08-24 05:07:56,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:07:56,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559143480] [2023-08-24 05:07:56,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:07:56,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:07:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:07:56,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:07:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:07:56,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:07:56,423 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:07:56,423 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:07:56,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-24 05:07:56,423 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:07:56,424 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:07:56,424 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:07:56,424 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-08-24 05:07:56,793 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:07:56,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1979 places, 2168 transitions, 5173 flow Received shutdown request... [2023-08-24 05:07:58,434 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-24 05:07:58,541 FATAL L? ?]: A wrapped exception occured: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction threw an exception: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.computeUnfolding(PetriNetUnfolderBase.java:200) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.(PetriNetUnfolderBase.java:123) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:72) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.RemoveDead.(RemoveDead.java:107) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) ... 18 more [2023-08-24 05:07:58,543 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.computeUnfolding(PetriNetUnfolderBase.java:200) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.(PetriNetUnfolderBase.java:123) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:72) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.RemoveDead.(RemoveDead.java:107) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-24 05:07:58,544 INFO L158 Benchmark]: Toolchain (without parser) took 682121.04ms. Allocated memory was 419.4MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 394.1MB in the beginning and 3.9GB in the end (delta: -3.5GB). Peak memory consumption was 3.0GB. Max. memory is 16.0GB. [2023-08-24 05:07:58,547 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 419.4MB. Free memory was 396.6MB in the beginning and 396.5MB in the end (delta: 91.6kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 05:07:58,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.13ms. Allocated memory is still 419.4MB. Free memory was 393.5MB in the beginning and 373.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-24 05:07:58,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.17ms. Allocated memory is still 419.4MB. Free memory was 373.1MB in the beginning and 370.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 05:07:58,548 INFO L158 Benchmark]: Boogie Preprocessor took 32.39ms. Allocated memory is still 419.4MB. Free memory was 370.5MB in the beginning and 368.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 05:07:58,548 INFO L158 Benchmark]: RCFGBuilder took 671.83ms. Allocated memory is still 419.4MB. Free memory was 368.9MB in the beginning and 330.0MB in the end (delta: 38.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-24 05:07:58,549 INFO L158 Benchmark]: TraceAbstraction took 680912.58ms. Allocated memory was 419.4MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 329.1MB in the beginning and 3.9GB in the end (delta: -3.5GB). Peak memory consumption was 2.9GB. Max. memory is 16.0GB. [2023-08-24 05:07:58,550 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 419.4MB. Free memory was 396.6MB in the beginning and 396.5MB in the end (delta: 91.6kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 438.13ms. Allocated memory is still 419.4MB. Free memory was 393.5MB in the beginning and 373.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.17ms. Allocated memory is still 419.4MB. Free memory was 373.1MB in the beginning and 370.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.39ms. Allocated memory is still 419.4MB. Free memory was 370.5MB in the beginning and 368.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 671.83ms. Allocated memory is still 419.4MB. Free memory was 368.9MB in the beginning and 330.0MB in the end (delta: 38.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * TraceAbstraction took 680912.58ms. Allocated memory was 419.4MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 329.1MB in the beginning and 3.9GB in the end (delta: -3.5GB). Peak memory consumption was 2.9GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 107 PlacesBefore, 24 PlacesAfterwards, 114 TransitionsBefore, 28 TransitionsAfterwards, 2028 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 104 TotalNumberOfCompositions, 2167 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1862, independent: 1748, independent conditional: 0, independent unconditional: 1748, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1107, independent: 1072, independent conditional: 0, independent unconditional: 1072, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1862, independent: 676, independent conditional: 0, independent unconditional: 676, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 1107, unknown conditional: 0, unknown unconditional: 1107] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 179 PlacesBefore, 57 PlacesAfterwards, 193 TransitionsBefore, 66 TransitionsAfterwards, 16380 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 31 ConcurrentYvCompositions, 5 ChoiceCompositions, 155 TotalNumberOfCompositions, 33585 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17106, independent: 16608, independent conditional: 0, independent unconditional: 16608, dependent: 498, dependent conditional: 0, dependent unconditional: 498, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8710, independent: 8626, independent conditional: 0, independent unconditional: 8626, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17106, independent: 7982, independent conditional: 0, independent unconditional: 7982, dependent: 414, dependent conditional: 0, dependent unconditional: 414, unknown: 8710, unknown conditional: 0, unknown unconditional: 8710] , Statistics on independence cache: Total cache size (in pairs): 581, Positive cache size: 543, Positive conditional cache size: 0, Positive unconditional cache size: 543, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0s, 251 PlacesBefore, 82 PlacesAfterwards, 272 TransitionsBefore, 96 TransitionsAfterwards, 43056 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 141 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 49 ConcurrentYvCompositions, 7 ChoiceCompositions, 218 TotalNumberOfCompositions, 78907 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40460, independent: 39863, independent conditional: 0, independent unconditional: 39863, dependent: 597, dependent conditional: 0, dependent unconditional: 597, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 22473, independent: 22323, independent conditional: 0, independent unconditional: 22323, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 40460, independent: 17540, independent conditional: 0, independent unconditional: 17540, dependent: 447, dependent conditional: 0, dependent unconditional: 447, unknown: 22473, unknown conditional: 0, unknown unconditional: 22473] , Statistics on independence cache: Total cache size (in pairs): 1432, Positive cache size: 1371, Positive conditional cache size: 0, Positive unconditional cache size: 1371, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.7s, 323 PlacesBefore, 109 PlacesAfterwards, 351 TransitionsBefore, 128 TransitionsAfterwards, 82056 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 186 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 66 ConcurrentYvCompositions, 9 ChoiceCompositions, 282 TotalNumberOfCompositions, 163123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67650, independent: 66806, independent conditional: 0, independent unconditional: 66806, dependent: 844, dependent conditional: 0, dependent unconditional: 844, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41876, independent: 41693, independent conditional: 0, independent unconditional: 41693, dependent: 183, dependent conditional: 0, dependent unconditional: 183, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 67650, independent: 25113, independent conditional: 0, independent unconditional: 25113, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 41876, unknown conditional: 0, unknown unconditional: 41876] , Statistics on independence cache: Total cache size (in pairs): 1501, Positive cache size: 1419, Positive conditional cache size: 0, Positive unconditional cache size: 1419, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0s, 395 PlacesBefore, 132 PlacesAfterwards, 430 TransitionsBefore, 156 TransitionsAfterwards, 133380 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 235 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 75 ConcurrentYvCompositions, 11 ChoiceCompositions, 342 TotalNumberOfCompositions, 266074 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 119031, independent: 117969, independent conditional: 0, independent unconditional: 117969, dependent: 1062, dependent conditional: 0, dependent unconditional: 1062, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 68894, independent: 68657, independent conditional: 0, independent unconditional: 68657, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 119031, independent: 49312, independent conditional: 0, independent unconditional: 49312, dependent: 825, dependent conditional: 0, dependent unconditional: 825, unknown: 68894, unknown conditional: 0, unknown unconditional: 68894] , Statistics on independence cache: Total cache size (in pairs): 3926, Positive cache size: 3813, Positive conditional cache size: 0, Positive unconditional cache size: 3813, Negative cache size: 113, Negative conditional cache size: 0, Negative unconditional cache size: 113, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.8s, 467 PlacesBefore, 158 PlacesAfterwards, 509 TransitionsBefore, 187 TransitionsAfterwards, 197028 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 277 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 98 ConcurrentYvCompositions, 13 ChoiceCompositions, 409 TotalNumberOfCompositions, 408501 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170237, independent: 168939, independent conditional: 0, independent unconditional: 168939, dependent: 1298, dependent conditional: 0, dependent unconditional: 1298, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 102255, independent: 101935, independent conditional: 0, independent unconditional: 101935, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170237, independent: 67004, independent conditional: 0, independent unconditional: 67004, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 102255, unknown conditional: 0, unknown unconditional: 102255] , Statistics on independence cache: Total cache size (in pairs): 5413, Positive cache size: 5283, Positive conditional cache size: 0, Positive unconditional cache size: 5283, Negative cache size: 130, Negative conditional cache size: 0, Negative unconditional cache size: 130, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.5s, 539 PlacesBefore, 182 PlacesAfterwards, 588 TransitionsBefore, 216 TransitionsAfterwards, 273000 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 328 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 107 ConcurrentYvCompositions, 15 ChoiceCompositions, 471 TotalNumberOfCompositions, 601155 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 255944, independent: 254194, independent conditional: 0, independent unconditional: 254194, dependent: 1750, dependent conditional: 0, dependent unconditional: 1750, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 140512, independent: 140155, independent conditional: 0, independent unconditional: 140155, dependent: 357, dependent conditional: 0, dependent unconditional: 357, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 255944, independent: 114039, independent conditional: 0, independent unconditional: 114039, dependent: 1393, dependent conditional: 0, dependent unconditional: 1393, unknown: 140512, unknown conditional: 0, unknown unconditional: 140512] , Statistics on independence cache: Total cache size (in pairs): 7374, Positive cache size: 7226, Positive conditional cache size: 0, Positive unconditional cache size: 7226, Negative cache size: 148, Negative conditional cache size: 0, Negative unconditional cache size: 148, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.7s, 611 PlacesBefore, 209 PlacesAfterwards, 667 TransitionsBefore, 248 TransitionsAfterwards, 361296 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 371 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 125 ConcurrentYvCompositions, 17 ChoiceCompositions, 534 TotalNumberOfCompositions, 812240 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 371076, independent: 369044, independent conditional: 0, independent unconditional: 369044, dependent: 2032, dependent conditional: 0, dependent unconditional: 2032, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 188435, independent: 188069, independent conditional: 0, independent unconditional: 188069, dependent: 366, dependent conditional: 0, dependent unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 371076, independent: 180975, independent conditional: 0, independent unconditional: 180975, dependent: 1666, dependent conditional: 0, dependent unconditional: 1666, unknown: 188435, unknown conditional: 0, unknown unconditional: 188435] , Statistics on independence cache: Total cache size (in pairs): 10489, Positive cache size: 10309, Positive conditional cache size: 0, Positive unconditional cache size: 10309, Negative cache size: 180, Negative conditional cache size: 0, Negative unconditional cache size: 180, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.8s, 683 PlacesBefore, 234 PlacesAfterwards, 746 TransitionsBefore, 278 TransitionsAfterwards, 461916 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 413 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 145 ConcurrentYvCompositions, 19 ChoiceCompositions, 598 TotalNumberOfCompositions, 929047 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 328600, independent: 326715, independent conditional: 0, independent unconditional: 326715, dependent: 1885, dependent conditional: 0, dependent unconditional: 1885, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 229820, independent: 229385, independent conditional: 0, independent unconditional: 229385, dependent: 435, dependent conditional: 0, dependent unconditional: 435, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328600, independent: 97330, independent conditional: 0, independent unconditional: 97330, dependent: 1450, dependent conditional: 0, dependent unconditional: 1450, unknown: 229820, unknown conditional: 0, unknown unconditional: 229820] , Statistics on independence cache: Total cache size (in pairs): 5890, Positive cache size: 5653, Positive conditional cache size: 0, Positive unconditional cache size: 5653, Negative cache size: 237, Negative conditional cache size: 0, Negative unconditional cache size: 237, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.4s, 755 PlacesBefore, 259 PlacesAfterwards, 825 TransitionsBefore, 308 TransitionsAfterwards, 574860 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 469 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 152 ConcurrentYvCompositions, 21 ChoiceCompositions, 663 TotalNumberOfCompositions, 1167442 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 408681, independent: 406564, independent conditional: 0, independent unconditional: 406564, dependent: 2117, dependent conditional: 0, dependent unconditional: 2117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 286548, independent: 286087, independent conditional: 0, independent unconditional: 286087, dependent: 461, dependent conditional: 0, dependent unconditional: 461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 408681, independent: 120477, independent conditional: 0, independent unconditional: 120477, dependent: 1656, dependent conditional: 0, dependent unconditional: 1656, unknown: 286548, unknown conditional: 0, unknown unconditional: 286548] , Statistics on independence cache: Total cache size (in pairs): 6246, Positive cache size: 6040, Positive conditional cache size: 0, Positive unconditional cache size: 6040, Negative cache size: 206, Negative conditional cache size: 0, Negative unconditional cache size: 206, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.7s, 827 PlacesBefore, 282 PlacesAfterwards, 904 TransitionsBefore, 336 TransitionsAfterwards, 700128 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 521 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 161 ConcurrentYvCompositions, 23 ChoiceCompositions, 726 TotalNumberOfCompositions, 1457710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 496854, independent: 494488, independent conditional: 0, independent unconditional: 494488, dependent: 2366, dependent conditional: 0, dependent unconditional: 2366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 345217, independent: 344662, independent conditional: 0, independent unconditional: 344662, dependent: 555, dependent conditional: 0, dependent unconditional: 555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 496854, independent: 149826, independent conditional: 0, independent unconditional: 149826, dependent: 1811, dependent conditional: 0, dependent unconditional: 1811, unknown: 345217, unknown conditional: 0, unknown unconditional: 345217] , Statistics on independence cache: Total cache size (in pairs): 4736, Positive cache size: 4459, Positive conditional cache size: 0, Positive unconditional cache size: 4459, Negative cache size: 277, Negative conditional cache size: 0, Negative unconditional cache size: 277, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.9s, 899 PlacesBefore, 309 PlacesAfterwards, 983 TransitionsBefore, 368 TransitionsAfterwards, 837720 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 553 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 189 ConcurrentYvCompositions, 25 ChoiceCompositions, 788 TotalNumberOfCompositions, 1744929 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 608992, independent: 606412, independent conditional: 0, independent unconditional: 606412, dependent: 2580, dependent conditional: 0, dependent unconditional: 2580, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 422154, independent: 421613, independent conditional: 0, independent unconditional: 421613, dependent: 541, dependent conditional: 0, dependent unconditional: 541, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 608992, independent: 184799, independent conditional: 0, independent unconditional: 184799, dependent: 2039, dependent conditional: 0, dependent unconditional: 2039, unknown: 422154, unknown conditional: 0, unknown unconditional: 422154] , Statistics on independence cache: Total cache size (in pairs): 9936, Positive cache size: 9688, Positive conditional cache size: 0, Positive unconditional cache size: 9688, Negative cache size: 248, Negative conditional cache size: 0, Negative unconditional cache size: 248, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.4s, 971 PlacesBefore, 336 PlacesAfterwards, 1062 TransitionsBefore, 400 TransitionsAfterwards, 987636 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 602 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 198 ConcurrentYvCompositions, 27 ChoiceCompositions, 848 TotalNumberOfCompositions, 2255991 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1043298, independent: 1039985, independent conditional: 0, independent unconditional: 1039985, dependent: 3313, dependent conditional: 0, dependent unconditional: 3313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 516508, independent: 515973, independent conditional: 0, independent unconditional: 515973, dependent: 535, dependent conditional: 0, dependent unconditional: 535, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1043298, independent: 524012, independent conditional: 0, independent unconditional: 524012, dependent: 2778, dependent conditional: 0, dependent unconditional: 2778, unknown: 516508, unknown conditional: 0, unknown unconditional: 516508] , Statistics on independence cache: Total cache size (in pairs): 31596, Positive cache size: 31324, Positive conditional cache size: 0, Positive unconditional cache size: 31324, Negative cache size: 272, Negative conditional cache size: 0, Negative unconditional cache size: 272, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.4s, 1043 PlacesBefore, 362 PlacesAfterwards, 1141 TransitionsBefore, 431 TransitionsAfterwards, 1149876 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 648 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 216 ConcurrentYvCompositions, 29 ChoiceCompositions, 914 TotalNumberOfCompositions, 2617201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1006326, independent: 1002790, independent conditional: 0, independent unconditional: 1002790, dependent: 3536, dependent conditional: 0, dependent unconditional: 3536, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 586609, independent: 585980, independent conditional: 0, independent unconditional: 585980, dependent: 629, dependent conditional: 0, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1006326, independent: 416810, independent conditional: 0, independent unconditional: 416810, dependent: 2907, dependent conditional: 0, dependent unconditional: 2907, unknown: 586609, unknown conditional: 0, unknown unconditional: 586609] , Statistics on independence cache: Total cache size (in pairs): 23886, Positive cache size: 23580, Positive conditional cache size: 0, Positive unconditional cache size: 23580, Negative cache size: 306, Negative conditional cache size: 0, Negative unconditional cache size: 306, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.3s, 1115 PlacesBefore, 384 PlacesAfterwards, 1220 TransitionsBefore, 458 TransitionsAfterwards, 1324440 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 691 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 231 ConcurrentYvCompositions, 31 ChoiceCompositions, 974 TotalNumberOfCompositions, 2975786 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 936499, independent: 932727, independent conditional: 0, independent unconditional: 932727, dependent: 3772, dependent conditional: 0, dependent unconditional: 3772, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 654467, independent: 653636, independent conditional: 0, independent unconditional: 653636, dependent: 831, dependent conditional: 0, dependent unconditional: 831, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 936499, independent: 279091, independent conditional: 0, independent unconditional: 279091, dependent: 2941, dependent conditional: 0, dependent unconditional: 2941, unknown: 654467, unknown conditional: 0, unknown unconditional: 654467] , Statistics on independence cache: Total cache size (in pairs): 8504, Positive cache size: 8115, Positive conditional cache size: 0, Positive unconditional cache size: 8115, Negative cache size: 389, Negative conditional cache size: 0, Negative unconditional cache size: 389, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.4s, 1187 PlacesBefore, 411 PlacesAfterwards, 1299 TransitionsBefore, 490 TransitionsAfterwards, 1511328 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 737 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 252 ConcurrentYvCompositions, 33 ChoiceCompositions, 1043 TotalNumberOfCompositions, 3418394 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1081493, independent: 1077484, independent conditional: 0, independent unconditional: 1077484, dependent: 4009, dependent conditional: 0, dependent unconditional: 4009, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 754071, independent: 753358, independent conditional: 0, independent unconditional: 753358, dependent: 713, dependent conditional: 0, dependent unconditional: 713, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1081493, independent: 324126, independent conditional: 0, independent unconditional: 324126, dependent: 3296, dependent conditional: 0, dependent unconditional: 3296, unknown: 754071, unknown conditional: 0, unknown unconditional: 754071] , Statistics on independence cache: Total cache size (in pairs): 12595, Positive cache size: 12261, Positive conditional cache size: 0, Positive unconditional cache size: 12261, Negative cache size: 334, Negative conditional cache size: 0, Negative unconditional cache size: 334, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.0s, 1259 PlacesBefore, 435 PlacesAfterwards, 1378 TransitionsBefore, 519 TransitionsAfterwards, 1710540 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 780 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 258 ConcurrentYvCompositions, 35 ChoiceCompositions, 1094 TotalNumberOfCompositions, 3860000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1209719, independent: 1205420, independent conditional: 0, independent unconditional: 1205420, dependent: 4299, dependent conditional: 0, dependent unconditional: 4299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 842621, independent: 841510, independent conditional: 0, independent unconditional: 841510, dependent: 1111, dependent conditional: 0, dependent unconditional: 1111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1209719, independent: 363910, independent conditional: 0, independent unconditional: 363910, dependent: 3188, dependent conditional: 0, dependent unconditional: 3188, unknown: 842621, unknown conditional: 0, unknown unconditional: 842621] , Statistics on independence cache: Total cache size (in pairs): 13044, Positive cache size: 12394, Positive conditional cache size: 0, Positive unconditional cache size: 12394, Negative cache size: 650, Negative conditional cache size: 0, Negative unconditional cache size: 650, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.0s, 1331 PlacesBefore, 460 PlacesAfterwards, 1457 TransitionsBefore, 549 TransitionsAfterwards, 1922076 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 822 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 285 ConcurrentYvCompositions, 37 ChoiceCompositions, 1165 TotalNumberOfCompositions, 4368552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1371150, independent: 1366584, independent conditional: 0, independent unconditional: 1366584, dependent: 4566, dependent conditional: 0, dependent unconditional: 4566, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 954516, independent: 953668, independent conditional: 0, independent unconditional: 953668, dependent: 848, dependent conditional: 0, dependent unconditional: 848, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1371150, independent: 412916, independent conditional: 0, independent unconditional: 412916, dependent: 3718, dependent conditional: 0, dependent unconditional: 3718, unknown: 954516, unknown conditional: 0, unknown unconditional: 954516] , Statistics on independence cache: Total cache size (in pairs): 15525, Positive cache size: 15150, Positive conditional cache size: 0, Positive unconditional cache size: 15150, Negative cache size: 375, Negative conditional cache size: 0, Negative unconditional cache size: 375, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.8s, 1403 PlacesBefore, 486 PlacesAfterwards, 1536 TransitionsBefore, 580 TransitionsAfterwards, 2145936 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 866 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 301 ConcurrentYvCompositions, 39 ChoiceCompositions, 1227 TotalNumberOfCompositions, 4909396 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1533663, independent: 1528833, independent conditional: 0, independent unconditional: 1528833, dependent: 4830, dependent conditional: 0, dependent unconditional: 4830, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1066939, independent: 1066086, independent conditional: 0, independent unconditional: 1066086, dependent: 853, dependent conditional: 0, dependent unconditional: 853, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1533663, independent: 462747, independent conditional: 0, independent unconditional: 462747, dependent: 3977, dependent conditional: 0, dependent unconditional: 3977, unknown: 1066939, unknown conditional: 0, unknown unconditional: 1066939] , Statistics on independence cache: Total cache size (in pairs): 18759, Positive cache size: 18362, Positive conditional cache size: 0, Positive unconditional cache size: 18362, Negative cache size: 397, Negative conditional cache size: 0, Negative unconditional cache size: 397, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.6s, 1475 PlacesBefore, 512 PlacesAfterwards, 1615 TransitionsBefore, 611 TransitionsAfterwards, 2382120 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 923 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 307 ConcurrentYvCompositions, 41 ChoiceCompositions, 1292 TotalNumberOfCompositions, 5438150 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1979618, independent: 1974553, independent conditional: 0, independent unconditional: 1974553, dependent: 5065, dependent conditional: 0, dependent unconditional: 5065, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1211333, independent: 1210201, independent conditional: 0, independent unconditional: 1210201, dependent: 1132, dependent conditional: 0, dependent unconditional: 1132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1979618, independent: 764352, independent conditional: 0, independent unconditional: 764352, dependent: 3933, dependent conditional: 0, dependent unconditional: 3933, unknown: 1211333, unknown conditional: 0, unknown unconditional: 1211333] , Statistics on independence cache: Total cache size (in pairs): 46643, Positive cache size: 46102, Positive conditional cache size: 0, Positive unconditional cache size: 46102, Negative cache size: 541, Negative conditional cache size: 0, Negative unconditional cache size: 541, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.5s, 1547 PlacesBefore, 539 PlacesAfterwards, 1694 TransitionsBefore, 643 TransitionsAfterwards, 2630628 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 963 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 325 ConcurrentYvCompositions, 43 ChoiceCompositions, 1352 TotalNumberOfCompositions, 6023620 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1869483, independent: 1864134, independent conditional: 0, independent unconditional: 1864134, dependent: 5349, dependent conditional: 0, dependent unconditional: 5349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1301424, independent: 1300446, independent conditional: 0, independent unconditional: 1300446, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1869483, independent: 563688, independent conditional: 0, independent unconditional: 563688, dependent: 4371, dependent conditional: 0, dependent unconditional: 4371, unknown: 1301424, unknown conditional: 0, unknown unconditional: 1301424] , Statistics on independence cache: Total cache size (in pairs): 22128, Positive cache size: 21686, Positive conditional cache size: 0, Positive unconditional cache size: 21686, Negative cache size: 442, Negative conditional cache size: 0, Negative unconditional cache size: 442, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.2s, 1619 PlacesBefore, 562 PlacesAfterwards, 1773 TransitionsBefore, 671 TransitionsAfterwards, 2891460 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1007 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 345 ConcurrentYvCompositions, 45 ChoiceCompositions, 1418 TotalNumberOfCompositions, 5961511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1977376, independent: 1972699, independent conditional: 0, independent unconditional: 1972699, dependent: 4677, dependent conditional: 0, dependent unconditional: 4677, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1437402, independent: 1436305, independent conditional: 0, independent unconditional: 1436305, dependent: 1097, dependent conditional: 0, dependent unconditional: 1097, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1977376, independent: 536394, independent conditional: 0, independent unconditional: 536394, dependent: 3580, dependent conditional: 0, dependent unconditional: 3580, unknown: 1437402, unknown conditional: 0, unknown unconditional: 1437402] , Statistics on independence cache: Total cache size (in pairs): 20544, Positive cache size: 20084, Positive conditional cache size: 0, Positive unconditional cache size: 20084, Negative cache size: 460, Negative conditional cache size: 0, Negative unconditional cache size: 460, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.3s, 1691 PlacesBefore, 585 PlacesAfterwards, 1852 TransitionsBefore, 699 TransitionsAfterwards, 3164616 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1056 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 354 ConcurrentYvCompositions, 47 ChoiceCompositions, 1478 TotalNumberOfCompositions, 6441936 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2178584, independent: 2173741, independent conditional: 0, independent unconditional: 2173741, dependent: 4843, dependent conditional: 0, dependent unconditional: 4843, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1574360, independent: 1573395, independent conditional: 0, independent unconditional: 1573395, dependent: 965, dependent conditional: 0, dependent unconditional: 965, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2178584, independent: 600346, independent conditional: 0, independent unconditional: 600346, dependent: 3878, dependent conditional: 0, dependent unconditional: 3878, unknown: 1574360, unknown conditional: 0, unknown unconditional: 1574360] , Statistics on independence cache: Total cache size (in pairs): 31974, Positive cache size: 31494, Positive conditional cache size: 0, Positive unconditional cache size: 31494, Negative cache size: 480, Negative conditional cache size: 0, Negative unconditional cache size: 480, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.8s, 1763 PlacesBefore, 610 PlacesAfterwards, 1931 TransitionsBefore, 729 TransitionsAfterwards, 3450096 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1112 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 363 ConcurrentYvCompositions, 49 ChoiceCompositions, 1545 TotalNumberOfCompositions, 7116348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3255295, independent: 3250185, independent conditional: 0, independent unconditional: 3250185, dependent: 5110, dependent conditional: 0, dependent unconditional: 5110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1793678, independent: 1792473, independent conditional: 0, independent unconditional: 1792473, dependent: 1205, dependent conditional: 0, dependent unconditional: 1205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3255295, independent: 1457712, independent conditional: 0, independent unconditional: 1457712, dependent: 3905, dependent conditional: 0, dependent unconditional: 3905, unknown: 1793678, unknown conditional: 0, unknown unconditional: 1793678] , Statistics on independence cache: Total cache size (in pairs): 102175, Positive cache size: 101651, Positive conditional cache size: 0, Positive unconditional cache size: 101651, Negative cache size: 524, Negative conditional cache size: 0, Negative unconditional cache size: 524, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.1s, 1835 PlacesBefore, 637 PlacesAfterwards, 2010 TransitionsBefore, 761 TransitionsAfterwards, 3747900 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1144 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 388 ConcurrentYvCompositions, 51 ChoiceCompositions, 1604 TotalNumberOfCompositions, 7669208 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3292501, independent: 3287238, independent conditional: 0, independent unconditional: 3287238, dependent: 5263, dependent conditional: 0, dependent unconditional: 5263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1944403, independent: 1943259, independent conditional: 0, independent unconditional: 1943259, dependent: 1144, dependent conditional: 0, dependent unconditional: 1144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3292501, independent: 1343979, independent conditional: 0, independent unconditional: 1343979, dependent: 4119, dependent conditional: 0, dependent unconditional: 4119, unknown: 1944403, unknown conditional: 0, unknown unconditional: 1944403] , Statistics on independence cache: Total cache size (in pairs): 98452, Positive cache size: 97903, Positive conditional cache size: 0, Positive unconditional cache size: 97903, Negative cache size: 549, Negative conditional cache size: 0, Negative unconditional cache size: 549, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.6s, 1907 PlacesBefore, 661 PlacesAfterwards, 2089 TransitionsBefore, 790 TransitionsAfterwards, 4058028 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 1190 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 410 ConcurrentYvCompositions, 53 ChoiceCompositions, 1674 TotalNumberOfCompositions, 9032144 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3639342, independent: 3632892, independent conditional: 0, independent unconditional: 3632892, dependent: 6450, dependent conditional: 0, dependent unconditional: 6450, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2097690, independent: 2096081, independent conditional: 0, independent unconditional: 2096081, dependent: 1609, dependent conditional: 0, dependent unconditional: 1609, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3639342, independent: 1536811, independent conditional: 0, independent unconditional: 1536811, dependent: 4841, dependent conditional: 0, dependent unconditional: 4841, unknown: 2097690, unknown conditional: 0, unknown unconditional: 2097690] , Statistics on independence cache: Total cache size (in pairs): 103634, Positive cache size: 102988, Positive conditional cache size: 0, Positive unconditional cache size: 102988, Negative cache size: 646, Negative conditional cache size: 0, Negative unconditional cache size: 646, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: AutomataOperationCanceledException: Timeout or canceled by user. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AutomataOperationCanceledException: Timeout or canceled by user.: de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.computeUnfolding(PetriNetUnfolderBase.java:200) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown