/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-ext/29_conditionals_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 08:14:15,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 08:14:15,176 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 08:14:15,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 08:14:15,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 08:14:15,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 08:14:15,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 08:14:15,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 08:14:15,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 08:14:15,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 08:14:15,209 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 08:14:15,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 08:14:15,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 08:14:15,211 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 08:14:15,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 08:14:15,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 08:14:15,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 08:14:15,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 08:14:15,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 08:14:15,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 08:14:15,212 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 08:14:15,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 08:14:15,213 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 08:14:15,213 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 08:14:15,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 08:14:15,213 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 08:14:15,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 08:14:15,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 08:14:15,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 08:14:15,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 08:14:15,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 08:14:15,215 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 08:14:15,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 08:14:15,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 08:14:15,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 08:14:15,215 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 08:14:15,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 08:14:15,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 08:14:15,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 08:14:15,488 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 08:14:15,490 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 08:14:15,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/29_conditionals_vs.i [2023-08-25 08:14:16,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 08:14:16,770 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 08:14:16,770 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/29_conditionals_vs.i [2023-08-25 08:14:16,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fc9ea090/ddbf8a0cff8f4286a581cc8c8b644a55/FLAGc3f0aa6db [2023-08-25 08:14:16,801 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fc9ea090/ddbf8a0cff8f4286a581cc8c8b644a55 [2023-08-25 08:14:16,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 08:14:16,804 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 08:14:16,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 08:14:16,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 08:14:16,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 08:14:16,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:14:16" (1/1) ... [2023-08-25 08:14:16,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1eb0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:16, skipping insertion in model container [2023-08-25 08:14:16,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:14:16" (1/1) ... [2023-08-25 08:14:16,852 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 08:14:17,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 08:14:17,112 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 08:14:17,135 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-25 08:14:17,136 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-25 08:14:17,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 08:14:17,171 INFO L206 MainTranslator]: Completed translation [2023-08-25 08:14:17,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17 WrapperNode [2023-08-25 08:14:17,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 08:14:17,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 08:14:17,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 08:14:17,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 08:14:17,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,216 INFO L138 Inliner]: procedures = 170, calls = 15, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 76 [2023-08-25 08:14:17,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 08:14:17,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 08:14:17,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 08:14:17,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 08:14:17,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 08:14:17,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 08:14:17,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 08:14:17,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 08:14:17,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (1/1) ... [2023-08-25 08:14:17,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 08:14:17,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 08:14:17,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 08:14:17,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 08:14:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 08:14:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 08:14:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 08:14:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 08:14:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 08:14:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 08:14:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 08:14:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 08:14:17,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 08:14:17,394 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 08:14:17,518 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 08:14:17,523 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 08:14:17,655 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 08:14:17,699 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 08:14:17,699 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-25 08:14:17,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:14:17 BoogieIcfgContainer [2023-08-25 08:14:17,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 08:14:17,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 08:14:17,702 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 08:14:17,704 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 08:14:17,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:14:16" (1/3) ... [2023-08-25 08:14:17,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580acb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:14:17, skipping insertion in model container [2023-08-25 08:14:17,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:14:17" (2/3) ... [2023-08-25 08:14:17,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580acb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:14:17, skipping insertion in model container [2023-08-25 08:14:17,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:14:17" (3/3) ... [2023-08-25 08:14:17,706 INFO L112 eAbstractionObserver]: Analyzing ICFG 29_conditionals_vs.i [2023-08-25 08:14:17,717 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 08:14:17,717 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-25 08:14:17,717 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 08:14:17,752 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:14:17,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 62 transitions, 129 flow [2023-08-25 08:14:17,848 INFO L124 PetriNetUnfolderBase]: 7/72 cut-off events. [2023-08-25 08:14:17,848 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 08:14:17,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 7/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 49. Up to 4 conditions per place. [2023-08-25 08:14:17,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 62 transitions, 129 flow [2023-08-25 08:14:17,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 62 transitions, 129 flow [2023-08-25 08:14:17,855 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:14:17,868 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 62 transitions, 129 flow [2023-08-25 08:14:17,875 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 62 transitions, 129 flow [2023-08-25 08:14:17,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 62 transitions, 129 flow [2023-08-25 08:14:17,894 INFO L124 PetriNetUnfolderBase]: 7/72 cut-off events. [2023-08-25 08:14:17,894 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 08:14:17,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 7/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 49. Up to 4 conditions per place. [2023-08-25 08:14:17,895 INFO L119 LiptonReduction]: Number of co-enabled transitions 962 [2023-08-25 08:14:19,481 INFO L134 LiptonReduction]: Checked pairs total: 876 [2023-08-25 08:14:19,481 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-25 08:14:19,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:14:19,494 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:14:19,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:14:19,497 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:14:19,497 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-08-25 08:14:19,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 08:14:19,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:14:19,498 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-25 08:14:19,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:14:19,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:14:19,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1720917078, now seen corresponding path program 1 times [2023-08-25 08:14:19,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:14:19,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778086853] [2023-08-25 08:14:19,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:14:19,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:14:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:19,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:14:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:19,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:14:19,656 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:14:19,657 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:14:19,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 08:14:19,660 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:14:19,666 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:14:19,666 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:14:19,666 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-25 08:14:19,701 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:14:19,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 100 transitions, 212 flow [2023-08-25 08:14:19,754 INFO L124 PetriNetUnfolderBase]: 13/122 cut-off events. [2023-08-25 08:14:19,755 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 08:14:19,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 13/122 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 236 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 86. Up to 6 conditions per place. [2023-08-25 08:14:19,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 100 transitions, 212 flow [2023-08-25 08:14:19,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 100 transitions, 212 flow [2023-08-25 08:14:19,758 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:14:19,758 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 100 transitions, 212 flow [2023-08-25 08:14:19,758 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 100 transitions, 212 flow [2023-08-25 08:14:19,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 100 transitions, 212 flow [2023-08-25 08:14:19,791 INFO L124 PetriNetUnfolderBase]: 13/122 cut-off events. [2023-08-25 08:14:19,791 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 08:14:19,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 13/122 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 236 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 86. Up to 6 conditions per place. [2023-08-25 08:14:19,799 INFO L119 LiptonReduction]: Number of co-enabled transitions 4736 [2023-08-25 08:14:21,757 INFO L134 LiptonReduction]: Checked pairs total: 4596 [2023-08-25 08:14:21,757 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-08-25 08:14:21,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:14:21,759 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:14:21,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:14:21,761 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:14:21,762 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2023-08-25 08:14:21,762 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 08:14:21,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:14:21,762 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-25 08:14:21,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:14:21,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:14:21,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1967451341, now seen corresponding path program 1 times [2023-08-25 08:14:21,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:14:21,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707143795] [2023-08-25 08:14:21,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:14:21,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:14:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:21,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:14:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:21,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:14:21,786 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:14:21,786 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:14:21,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 08:14:21,786 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:14:21,786 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:14:21,787 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:14:21,787 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-25 08:14:21,801 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:14:21,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 138 transitions, 297 flow [2023-08-25 08:14:21,815 INFO L124 PetriNetUnfolderBase]: 19/172 cut-off events. [2023-08-25 08:14:21,815 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-25 08:14:21,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 172 events. 19/172 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 449 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 126. Up to 8 conditions per place. [2023-08-25 08:14:21,816 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 138 transitions, 297 flow [2023-08-25 08:14:21,817 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 138 transitions, 297 flow [2023-08-25 08:14:21,817 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:14:21,817 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 138 transitions, 297 flow [2023-08-25 08:14:21,817 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 138 transitions, 297 flow [2023-08-25 08:14:21,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 138 transitions, 297 flow [2023-08-25 08:14:21,833 INFO L124 PetriNetUnfolderBase]: 19/172 cut-off events. [2023-08-25 08:14:21,833 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-25 08:14:21,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 172 events. 19/172 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 449 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 126. Up to 8 conditions per place. [2023-08-25 08:14:21,839 INFO L119 LiptonReduction]: Number of co-enabled transitions 11322 [2023-08-25 08:14:24,944 INFO L134 LiptonReduction]: Checked pairs total: 12424 [2023-08-25 08:14:24,944 INFO L136 LiptonReduction]: Total number of compositions: 170 [2023-08-25 08:14:24,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:14:24,946 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:14:24,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:14:24,950 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:14:24,950 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2023-08-25 08:14:24,951 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-25 08:14:24,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:14:24,951 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-25 08:14:24,951 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:14:24,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:14:24,951 INFO L85 PathProgramCache]: Analyzing trace with hash -373616536, now seen corresponding path program 1 times [2023-08-25 08:14:24,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:14:24,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326950339] [2023-08-25 08:14:24,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:14:24,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:14:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:24,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:14:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:24,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:14:24,999 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:14:25,000 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:14:25,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 08:14:25,000 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:14:25,001 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:14:25,001 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:14:25,001 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-25 08:14:25,041 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:14:25,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 176 transitions, 384 flow [2023-08-25 08:14:25,066 INFO L124 PetriNetUnfolderBase]: 25/222 cut-off events. [2023-08-25 08:14:25,066 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 08:14:25,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 222 events. 25/222 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 636 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 180. Up to 10 conditions per place. [2023-08-25 08:14:25,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 176 transitions, 384 flow [2023-08-25 08:14:25,070 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 176 transitions, 384 flow [2023-08-25 08:14:25,070 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:14:25,070 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 176 transitions, 384 flow [2023-08-25 08:14:25,070 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 176 transitions, 384 flow [2023-08-25 08:14:25,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 176 transitions, 384 flow [2023-08-25 08:14:25,092 INFO L124 PetriNetUnfolderBase]: 25/222 cut-off events. [2023-08-25 08:14:25,093 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 08:14:25,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 222 events. 25/222 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 636 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 180. Up to 10 conditions per place. [2023-08-25 08:14:25,104 INFO L119 LiptonReduction]: Number of co-enabled transitions 20720 [2023-08-25 08:14:28,462 INFO L134 LiptonReduction]: Checked pairs total: 21519 [2023-08-25 08:14:28,462 INFO L136 LiptonReduction]: Total number of compositions: 211 [2023-08-25 08:14:28,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:14:28,464 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:14:28,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:14:28,468 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:14:28,469 INFO L124 PetriNetUnfolderBase]: 0/51 cut-off events. [2023-08-25 08:14:28,469 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 08:14:28,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:14:28,469 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-08-25 08:14:28,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:14:28,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:14:28,469 INFO L85 PathProgramCache]: Analyzing trace with hash -233838121, now seen corresponding path program 1 times [2023-08-25 08:14:28,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:14:28,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767750409] [2023-08-25 08:14:28,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:14:28,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:14:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:28,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:14:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:28,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:14:28,520 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:14:28,520 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:14:28,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 08:14:28,520 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:14:28,520 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:14:28,521 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:14:28,521 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-25 08:14:28,540 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:14:28,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 214 transitions, 473 flow [2023-08-25 08:14:28,568 INFO L124 PetriNetUnfolderBase]: 31/272 cut-off events. [2023-08-25 08:14:28,569 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-25 08:14:28,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 272 events. 31/272 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 835 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 236. Up to 12 conditions per place. [2023-08-25 08:14:28,570 INFO L82 GeneralOperation]: Start removeDead. Operand has 199 places, 214 transitions, 473 flow [2023-08-25 08:14:28,572 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 214 transitions, 473 flow [2023-08-25 08:14:28,572 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:14:28,572 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 214 transitions, 473 flow [2023-08-25 08:14:28,572 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 214 transitions, 473 flow [2023-08-25 08:14:28,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 214 transitions, 473 flow [2023-08-25 08:14:28,593 INFO L124 PetriNetUnfolderBase]: 31/272 cut-off events. [2023-08-25 08:14:28,593 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-25 08:14:28,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 272 events. 31/272 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 835 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 236. Up to 12 conditions per place. [2023-08-25 08:14:28,603 INFO L119 LiptonReduction]: Number of co-enabled transitions 32930 [2023-08-25 08:14:32,988 INFO L134 LiptonReduction]: Checked pairs total: 35584 [2023-08-25 08:14:32,988 INFO L136 LiptonReduction]: Total number of compositions: 273 [2023-08-25 08:14:32,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:14:32,990 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:14:32,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:14:32,994 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:14:32,994 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2023-08-25 08:14:32,994 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-25 08:14:32,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:14:32,994 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:14:32,995 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:14:32,995 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:14:32,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1535405618, now seen corresponding path program 1 times [2023-08-25 08:14:32,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:14:32,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20255393] [2023-08-25 08:14:32,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:14:32,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:14:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:33,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:14:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:33,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:14:33,034 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:14:33,034 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:14:33,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 08:14:33,034 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:14:33,034 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:14:33,035 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:14:33,035 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-25 08:14:33,053 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:14:33,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 252 transitions, 564 flow [2023-08-25 08:14:33,085 INFO L124 PetriNetUnfolderBase]: 37/322 cut-off events. [2023-08-25 08:14:33,086 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-25 08:14:33,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 322 events. 37/322 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1022 event pairs, 0 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 294. Up to 14 conditions per place. [2023-08-25 08:14:33,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 252 transitions, 564 flow [2023-08-25 08:14:33,090 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 252 transitions, 564 flow [2023-08-25 08:14:33,091 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:14:33,091 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 252 transitions, 564 flow [2023-08-25 08:14:33,091 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 252 transitions, 564 flow [2023-08-25 08:14:33,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 252 transitions, 564 flow [2023-08-25 08:14:33,122 INFO L124 PetriNetUnfolderBase]: 37/322 cut-off events. [2023-08-25 08:14:33,123 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-25 08:14:33,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 322 events. 37/322 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1022 event pairs, 0 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 294. Up to 14 conditions per place. [2023-08-25 08:14:33,133 INFO L119 LiptonReduction]: Number of co-enabled transitions 47952 [2023-08-25 08:14:37,412 INFO L134 LiptonReduction]: Checked pairs total: 50112 [2023-08-25 08:14:37,413 INFO L136 LiptonReduction]: Total number of compositions: 303 [2023-08-25 08:14:37,415 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:14:37,416 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:14:37,416 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:14:37,439 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:14:37,440 INFO L124 PetriNetUnfolderBase]: 0/75 cut-off events. [2023-08-25 08:14:37,440 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-25 08:14:37,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:14:37,452 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:14:37,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:14:37,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:14:37,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1185369879, now seen corresponding path program 1 times [2023-08-25 08:14:37,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:14:37,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190246648] [2023-08-25 08:14:37,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:14:37,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:14:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:37,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:14:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:37,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:14:37,503 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:14:37,503 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:14:37,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 08:14:37,503 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:14:37,504 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:14:37,504 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:14:37,504 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-25 08:14:37,534 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:14:37,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 269 places, 290 transitions, 657 flow [2023-08-25 08:14:37,581 INFO L124 PetriNetUnfolderBase]: 43/372 cut-off events. [2023-08-25 08:14:37,583 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-25 08:14:37,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 372 events. 43/372 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1230 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 353. Up to 16 conditions per place. [2023-08-25 08:14:37,587 INFO L82 GeneralOperation]: Start removeDead. Operand has 269 places, 290 transitions, 657 flow [2023-08-25 08:14:37,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 269 places, 290 transitions, 657 flow [2023-08-25 08:14:37,593 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:14:37,593 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 290 transitions, 657 flow [2023-08-25 08:14:37,593 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 290 transitions, 657 flow [2023-08-25 08:14:37,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 269 places, 290 transitions, 657 flow [2023-08-25 08:14:37,640 INFO L124 PetriNetUnfolderBase]: 43/372 cut-off events. [2023-08-25 08:14:37,640 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-25 08:14:37,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 372 events. 43/372 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1230 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 353. Up to 16 conditions per place. [2023-08-25 08:14:37,654 INFO L119 LiptonReduction]: Number of co-enabled transitions 65786 [2023-08-25 08:14:42,674 INFO L134 LiptonReduction]: Checked pairs total: 73134 [2023-08-25 08:14:42,674 INFO L136 LiptonReduction]: Total number of compositions: 366 [2023-08-25 08:14:42,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:14:42,678 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:14:42,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:14:42,683 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:14:42,683 INFO L124 PetriNetUnfolderBase]: 0/87 cut-off events. [2023-08-25 08:14:42,683 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-25 08:14:42,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:14:42,683 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:14:42,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:14:42,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:14:42,684 INFO L85 PathProgramCache]: Analyzing trace with hash 539947945, now seen corresponding path program 1 times [2023-08-25 08:14:42,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:14:42,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160217178] [2023-08-25 08:14:42,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:14:42,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:14:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:42,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:14:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:42,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:14:42,742 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:14:42,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:14:42,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 08:14:42,743 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:14:42,743 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:14:42,743 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:14:42,743 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-25 08:14:42,767 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:14:42,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 304 places, 328 transitions, 752 flow [2023-08-25 08:14:42,810 INFO L124 PetriNetUnfolderBase]: 49/422 cut-off events. [2023-08-25 08:14:42,810 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-25 08:14:42,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 422 events. 49/422 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1417 event pairs, 0 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 413. Up to 18 conditions per place. [2023-08-25 08:14:42,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 304 places, 328 transitions, 752 flow [2023-08-25 08:14:42,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 304 places, 328 transitions, 752 flow [2023-08-25 08:14:42,818 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:14:42,818 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 304 places, 328 transitions, 752 flow [2023-08-25 08:14:42,818 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 304 places, 328 transitions, 752 flow [2023-08-25 08:14:42,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 304 places, 328 transitions, 752 flow [2023-08-25 08:14:42,860 INFO L124 PetriNetUnfolderBase]: 49/422 cut-off events. [2023-08-25 08:14:42,860 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-25 08:14:42,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 422 events. 49/422 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1417 event pairs, 0 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 413. Up to 18 conditions per place. [2023-08-25 08:14:42,878 INFO L119 LiptonReduction]: Number of co-enabled transitions 86432 [2023-08-25 08:14:48,414 INFO L134 LiptonReduction]: Checked pairs total: 93403 [2023-08-25 08:14:48,414 INFO L136 LiptonReduction]: Total number of compositions: 409 [2023-08-25 08:14:48,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:14:48,417 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:14:48,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:14:48,423 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:14:48,423 INFO L124 PetriNetUnfolderBase]: 0/99 cut-off events. [2023-08-25 08:14:48,424 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-25 08:14:48,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:14:48,424 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:14:48,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:14:48,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:14:48,424 INFO L85 PathProgramCache]: Analyzing trace with hash 285111689, now seen corresponding path program 1 times [2023-08-25 08:14:48,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:14:48,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169255123] [2023-08-25 08:14:48,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:14:48,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:14:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:48,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:14:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:48,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:14:48,468 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:14:48,468 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:14:48,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 08:14:48,468 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:14:48,470 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:14:48,470 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:14:48,470 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-25 08:14:48,495 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:14:48,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 339 places, 366 transitions, 849 flow [2023-08-25 08:14:48,547 INFO L124 PetriNetUnfolderBase]: 55/472 cut-off events. [2023-08-25 08:14:48,548 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-25 08:14:48,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 472 events. 55/472 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1622 event pairs, 0 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 474. Up to 20 conditions per place. [2023-08-25 08:14:48,553 INFO L82 GeneralOperation]: Start removeDead. Operand has 339 places, 366 transitions, 849 flow [2023-08-25 08:14:48,559 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 339 places, 366 transitions, 849 flow [2023-08-25 08:14:48,559 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:14:48,559 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 339 places, 366 transitions, 849 flow [2023-08-25 08:14:48,559 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 339 places, 366 transitions, 849 flow [2023-08-25 08:14:48,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 339 places, 366 transitions, 849 flow [2023-08-25 08:14:48,609 INFO L124 PetriNetUnfolderBase]: 55/472 cut-off events. [2023-08-25 08:14:48,610 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-25 08:14:48,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 472 events. 55/472 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1622 event pairs, 0 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 474. Up to 20 conditions per place. [2023-08-25 08:14:48,634 INFO L119 LiptonReduction]: Number of co-enabled transitions 109890 [2023-08-25 08:14:56,339 INFO L134 LiptonReduction]: Checked pairs total: 122590 [2023-08-25 08:14:56,339 INFO L136 LiptonReduction]: Total number of compositions: 469 [2023-08-25 08:14:56,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:14:56,341 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:14:56,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:14:56,348 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:14:56,348 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2023-08-25 08:14:56,348 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-25 08:14:56,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:14:56,348 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:14:56,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:14:56,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:14:56,349 INFO L85 PathProgramCache]: Analyzing trace with hash 732086230, now seen corresponding path program 1 times [2023-08-25 08:14:56,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:14:56,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545182242] [2023-08-25 08:14:56,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:14:56,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:14:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:56,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:14:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:14:56,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:14:56,392 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:14:56,392 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:14:56,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 08:14:56,392 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:14:56,395 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:14:56,395 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:14:56,395 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-25 08:14:56,423 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:14:56,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 404 transitions, 948 flow [2023-08-25 08:14:56,488 INFO L124 PetriNetUnfolderBase]: 61/522 cut-off events. [2023-08-25 08:14:56,488 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-25 08:14:56,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 522 events. 61/522 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1828 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 536. Up to 22 conditions per place. [2023-08-25 08:14:56,496 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 404 transitions, 948 flow [2023-08-25 08:14:56,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 404 transitions, 948 flow [2023-08-25 08:14:56,499 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:14:56,499 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 404 transitions, 948 flow [2023-08-25 08:14:56,499 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 404 transitions, 948 flow [2023-08-25 08:14:56,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 404 transitions, 948 flow [2023-08-25 08:14:56,562 INFO L124 PetriNetUnfolderBase]: 61/522 cut-off events. [2023-08-25 08:14:56,562 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-25 08:14:56,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 522 events. 61/522 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1828 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 536. Up to 22 conditions per place. [2023-08-25 08:14:56,592 INFO L119 LiptonReduction]: Number of co-enabled transitions 136160 [2023-08-25 08:15:03,060 INFO L134 LiptonReduction]: Checked pairs total: 147102 [2023-08-25 08:15:03,061 INFO L136 LiptonReduction]: Total number of compositions: 504 [2023-08-25 08:15:03,062 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:15:03,062 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:15:03,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:15:03,070 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:15:03,070 INFO L124 PetriNetUnfolderBase]: 0/123 cut-off events. [2023-08-25 08:15:03,070 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-25 08:15:03,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:15:03,070 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:15:03,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:15:03,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:15:03,071 INFO L85 PathProgramCache]: Analyzing trace with hash 534765804, now seen corresponding path program 1 times [2023-08-25 08:15:03,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:15:03,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152113651] [2023-08-25 08:15:03,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:15:03,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:15:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:03,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:15:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:03,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:15:03,121 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:15:03,121 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:15:03,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 08:15:03,121 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:15:03,121 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:15:03,121 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:15:03,121 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-25 08:15:03,149 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:15:03,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 409 places, 442 transitions, 1049 flow [2023-08-25 08:15:03,226 INFO L124 PetriNetUnfolderBase]: 67/572 cut-off events. [2023-08-25 08:15:03,226 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-25 08:15:03,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 572 events. 67/572 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2024 event pairs, 0 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 599. Up to 24 conditions per place. [2023-08-25 08:15:03,233 INFO L82 GeneralOperation]: Start removeDead. Operand has 409 places, 442 transitions, 1049 flow [2023-08-25 08:15:03,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 409 places, 442 transitions, 1049 flow [2023-08-25 08:15:03,237 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:15:03,237 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 409 places, 442 transitions, 1049 flow [2023-08-25 08:15:03,237 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 409 places, 442 transitions, 1049 flow [2023-08-25 08:15:03,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 409 places, 442 transitions, 1049 flow [2023-08-25 08:15:03,311 INFO L124 PetriNetUnfolderBase]: 67/572 cut-off events. [2023-08-25 08:15:03,311 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-25 08:15:03,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 572 events. 67/572 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2024 event pairs, 0 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 599. Up to 24 conditions per place. [2023-08-25 08:15:03,347 INFO L119 LiptonReduction]: Number of co-enabled transitions 165242 [2023-08-25 08:15:09,986 INFO L134 LiptonReduction]: Checked pairs total: 173638 [2023-08-25 08:15:09,986 INFO L136 LiptonReduction]: Total number of compositions: 541 [2023-08-25 08:15:09,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:15:09,987 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:15:09,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:15:09,997 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:15:09,997 INFO L124 PetriNetUnfolderBase]: 0/135 cut-off events. [2023-08-25 08:15:09,997 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-25 08:15:09,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:15:09,997 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:15:09,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:15:09,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:15:09,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1576296312, now seen corresponding path program 1 times [2023-08-25 08:15:09,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:15:09,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529789877] [2023-08-25 08:15:09,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:15:09,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:15:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:10,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:15:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:10,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:15:10,037 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:15:10,037 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:15:10,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 08:15:10,037 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:15:10,038 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:15:10,038 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:15:10,038 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-25 08:15:10,065 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:15:10,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 480 transitions, 1152 flow [2023-08-25 08:15:10,161 INFO L124 PetriNetUnfolderBase]: 73/622 cut-off events. [2023-08-25 08:15:10,162 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-25 08:15:10,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 622 events. 73/622 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2250 event pairs, 0 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 663. Up to 26 conditions per place. [2023-08-25 08:15:10,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 444 places, 480 transitions, 1152 flow [2023-08-25 08:15:10,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 480 transitions, 1152 flow [2023-08-25 08:15:10,177 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:15:10,177 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 444 places, 480 transitions, 1152 flow [2023-08-25 08:15:10,177 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 444 places, 480 transitions, 1152 flow [2023-08-25 08:15:10,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 480 transitions, 1152 flow [2023-08-25 08:15:10,269 INFO L124 PetriNetUnfolderBase]: 73/622 cut-off events. [2023-08-25 08:15:10,269 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-25 08:15:10,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 622 events. 73/622 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2250 event pairs, 0 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 663. Up to 26 conditions per place. [2023-08-25 08:15:10,313 INFO L119 LiptonReduction]: Number of co-enabled transitions 197136 [2023-08-25 08:15:17,810 INFO L134 LiptonReduction]: Checked pairs total: 212906 [2023-08-25 08:15:17,811 INFO L136 LiptonReduction]: Total number of compositions: 595 [2023-08-25 08:15:17,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:15:17,812 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:15:17,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:15:17,825 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:15:17,826 INFO L124 PetriNetUnfolderBase]: 0/147 cut-off events. [2023-08-25 08:15:17,826 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-25 08:15:17,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:15:17,826 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:15:17,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:15:17,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:15:17,826 INFO L85 PathProgramCache]: Analyzing trace with hash -73213895, now seen corresponding path program 1 times [2023-08-25 08:15:17,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:15:17,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754891598] [2023-08-25 08:15:17,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:15:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:15:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:17,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:15:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:17,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:15:17,865 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:15:17,865 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:15:17,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 08:15:17,865 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:15:17,867 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:15:17,867 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:15:17,867 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-25 08:15:17,906 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:15:17,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 479 places, 518 transitions, 1257 flow [2023-08-25 08:15:18,045 INFO L124 PetriNetUnfolderBase]: 79/672 cut-off events. [2023-08-25 08:15:18,045 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-25 08:15:18,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 672 events. 79/672 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2438 event pairs, 0 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 728. Up to 28 conditions per place. [2023-08-25 08:15:18,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 479 places, 518 transitions, 1257 flow [2023-08-25 08:15:18,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 479 places, 518 transitions, 1257 flow [2023-08-25 08:15:18,064 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:15:18,064 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 479 places, 518 transitions, 1257 flow [2023-08-25 08:15:18,064 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 479 places, 518 transitions, 1257 flow [2023-08-25 08:15:18,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 479 places, 518 transitions, 1257 flow [2023-08-25 08:15:18,179 INFO L124 PetriNetUnfolderBase]: 79/672 cut-off events. [2023-08-25 08:15:18,179 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-25 08:15:18,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 672 events. 79/672 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2438 event pairs, 0 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 728. Up to 28 conditions per place. [2023-08-25 08:15:18,229 INFO L119 LiptonReduction]: Number of co-enabled transitions 231842 [2023-08-25 08:15:26,527 INFO L134 LiptonReduction]: Checked pairs total: 250635 [2023-08-25 08:15:26,528 INFO L136 LiptonReduction]: Total number of compositions: 664 [2023-08-25 08:15:26,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:15:26,529 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:15:26,529 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:15:26,544 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:15:26,544 INFO L124 PetriNetUnfolderBase]: 0/159 cut-off events. [2023-08-25 08:15:26,544 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-25 08:15:26,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:15:26,544 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:15:26,545 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:15:26,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:15:26,545 INFO L85 PathProgramCache]: Analyzing trace with hash 371420877, now seen corresponding path program 1 times [2023-08-25 08:15:26,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:15:26,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443080820] [2023-08-25 08:15:26,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:15:26,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:15:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:26,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:15:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:26,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:15:26,589 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:15:26,589 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:15:26,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 08:15:26,589 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:15:26,590 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:15:26,590 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:15:26,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-25 08:15:26,632 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:15:26,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 514 places, 556 transitions, 1364 flow [2023-08-25 08:15:26,766 INFO L124 PetriNetUnfolderBase]: 85/722 cut-off events. [2023-08-25 08:15:26,766 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-25 08:15:26,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 722 events. 85/722 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2627 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 794. Up to 30 conditions per place. [2023-08-25 08:15:26,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 514 places, 556 transitions, 1364 flow [2023-08-25 08:15:26,795 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 514 places, 556 transitions, 1364 flow [2023-08-25 08:15:26,795 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:15:26,795 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 514 places, 556 transitions, 1364 flow [2023-08-25 08:15:26,795 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 514 places, 556 transitions, 1364 flow [2023-08-25 08:15:26,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 514 places, 556 transitions, 1364 flow [2023-08-25 08:15:26,928 INFO L124 PetriNetUnfolderBase]: 85/722 cut-off events. [2023-08-25 08:15:26,929 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-25 08:15:26,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 722 events. 85/722 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2627 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 794. Up to 30 conditions per place. [2023-08-25 08:15:27,004 INFO L119 LiptonReduction]: Number of co-enabled transitions 269360 [2023-08-25 08:15:34,918 INFO L134 LiptonReduction]: Checked pairs total: 285917 [2023-08-25 08:15:34,918 INFO L136 LiptonReduction]: Total number of compositions: 692 [2023-08-25 08:15:34,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:15:34,920 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:15:34,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:15:34,933 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:15:34,934 INFO L124 PetriNetUnfolderBase]: 0/171 cut-off events. [2023-08-25 08:15:34,934 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-25 08:15:34,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:15:34,934 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:15:34,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:15:34,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:15:34,934 INFO L85 PathProgramCache]: Analyzing trace with hash -183857782, now seen corresponding path program 1 times [2023-08-25 08:15:34,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:15:34,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73521272] [2023-08-25 08:15:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:15:34,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:15:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:34,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:15:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:34,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:15:34,973 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:15:34,973 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:15:34,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 08:15:34,973 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:15:34,973 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:15:34,973 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:15:34,973 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-25 08:15:35,016 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:15:35,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 549 places, 594 transitions, 1473 flow [2023-08-25 08:15:35,152 INFO L124 PetriNetUnfolderBase]: 91/772 cut-off events. [2023-08-25 08:15:35,152 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-25 08:15:35,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 772 events. 91/772 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2830 event pairs, 0 based on Foata normal form. 0/590 useless extension candidates. Maximal degree in co-relation 861. Up to 32 conditions per place. [2023-08-25 08:15:35,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 549 places, 594 transitions, 1473 flow [2023-08-25 08:15:35,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 549 places, 594 transitions, 1473 flow [2023-08-25 08:15:35,175 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:15:35,175 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 549 places, 594 transitions, 1473 flow [2023-08-25 08:15:35,175 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 549 places, 594 transitions, 1473 flow [2023-08-25 08:15:35,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 549 places, 594 transitions, 1473 flow [2023-08-25 08:15:35,307 INFO L124 PetriNetUnfolderBase]: 91/772 cut-off events. [2023-08-25 08:15:35,308 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-25 08:15:35,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 772 events. 91/772 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2830 event pairs, 0 based on Foata normal form. 0/590 useless extension candidates. Maximal degree in co-relation 861. Up to 32 conditions per place. [2023-08-25 08:15:35,376 INFO L119 LiptonReduction]: Number of co-enabled transitions 309690 [2023-08-25 08:15:44,701 INFO L134 LiptonReduction]: Checked pairs total: 324741 [2023-08-25 08:15:44,702 INFO L136 LiptonReduction]: Total number of compositions: 752 [2023-08-25 08:15:44,703 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:15:44,704 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:15:44,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:15:44,730 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:15:44,730 INFO L124 PetriNetUnfolderBase]: 0/183 cut-off events. [2023-08-25 08:15:44,730 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-25 08:15:44,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:15:44,730 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] [2023-08-25 08:15:44,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:15:44,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:15:44,745 INFO L85 PathProgramCache]: Analyzing trace with hash -476573839, now seen corresponding path program 1 times [2023-08-25 08:15:44,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:15:44,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081501224] [2023-08-25 08:15:44,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:15:44,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:15:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:44,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:15:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:44,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:15:44,790 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:15:44,790 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:15:44,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 08:15:44,791 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:15:44,791 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:15:44,791 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:15:44,791 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-25 08:15:44,840 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:15:44,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 584 places, 632 transitions, 1584 flow [2023-08-25 08:15:45,064 INFO L124 PetriNetUnfolderBase]: 97/822 cut-off events. [2023-08-25 08:15:45,065 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-25 08:15:45,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 822 events. 97/822 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3042 event pairs, 0 based on Foata normal form. 0/628 useless extension candidates. Maximal degree in co-relation 929. Up to 34 conditions per place. [2023-08-25 08:15:45,094 INFO L82 GeneralOperation]: Start removeDead. Operand has 584 places, 632 transitions, 1584 flow [2023-08-25 08:15:45,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 584 places, 632 transitions, 1584 flow [2023-08-25 08:15:45,105 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:15:45,106 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 584 places, 632 transitions, 1584 flow [2023-08-25 08:15:45,106 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 584 places, 632 transitions, 1584 flow [2023-08-25 08:15:45,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 584 places, 632 transitions, 1584 flow [2023-08-25 08:15:45,266 INFO L124 PetriNetUnfolderBase]: 97/822 cut-off events. [2023-08-25 08:15:45,267 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-25 08:15:45,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 822 events. 97/822 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3042 event pairs, 0 based on Foata normal form. 0/628 useless extension candidates. Maximal degree in co-relation 929. Up to 34 conditions per place. [2023-08-25 08:15:45,347 INFO L119 LiptonReduction]: Number of co-enabled transitions 352832 [2023-08-25 08:15:54,508 INFO L134 LiptonReduction]: Checked pairs total: 377823 [2023-08-25 08:15:54,508 INFO L136 LiptonReduction]: Total number of compositions: 792 [2023-08-25 08:15:54,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:15:54,510 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:15:54,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:15:54,533 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:15:54,533 INFO L124 PetriNetUnfolderBase]: 0/195 cut-off events. [2023-08-25 08:15:54,533 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-25 08:15:54,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:15:54,534 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] [2023-08-25 08:15:54,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:15:54,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:15:54,534 INFO L85 PathProgramCache]: Analyzing trace with hash 784556714, now seen corresponding path program 1 times [2023-08-25 08:15:54,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:15:54,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792818200] [2023-08-25 08:15:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:15:54,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:15:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:54,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:15:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:15:54,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:15:54,579 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:15:54,579 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:15:54,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 08:15:54,579 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:15:54,580 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:15:54,580 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:15:54,580 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-25 08:15:54,630 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:15:54,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 619 places, 670 transitions, 1697 flow [2023-08-25 08:15:54,865 INFO L124 PetriNetUnfolderBase]: 103/872 cut-off events. [2023-08-25 08:15:54,865 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-25 08:15:54,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 872 events. 103/872 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3234 event pairs, 0 based on Foata normal form. 0/666 useless extension candidates. Maximal degree in co-relation 998. Up to 36 conditions per place. [2023-08-25 08:15:54,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 619 places, 670 transitions, 1697 flow [2023-08-25 08:15:54,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 619 places, 670 transitions, 1697 flow [2023-08-25 08:15:54,890 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:15:54,890 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 619 places, 670 transitions, 1697 flow [2023-08-25 08:15:54,890 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 619 places, 670 transitions, 1697 flow [2023-08-25 08:15:54,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 619 places, 670 transitions, 1697 flow [2023-08-25 08:15:55,053 INFO L124 PetriNetUnfolderBase]: 103/872 cut-off events. [2023-08-25 08:15:55,053 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-25 08:15:55,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 872 events. 103/872 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3234 event pairs, 0 based on Foata normal form. 0/666 useless extension candidates. Maximal degree in co-relation 998. Up to 36 conditions per place. [2023-08-25 08:15:55,143 INFO L119 LiptonReduction]: Number of co-enabled transitions 398786 [2023-08-25 08:16:04,653 INFO L134 LiptonReduction]: Checked pairs total: 435601 [2023-08-25 08:16:04,653 INFO L136 LiptonReduction]: Total number of compositions: 860 [2023-08-25 08:16:04,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:16:04,656 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:16:04,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:16:04,687 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:16:04,687 INFO L124 PetriNetUnfolderBase]: 0/207 cut-off events. [2023-08-25 08:16:04,687 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-25 08:16:04,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:16:04,687 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] [2023-08-25 08:16:04,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:16:04,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:16:04,688 INFO L85 PathProgramCache]: Analyzing trace with hash 846013160, now seen corresponding path program 1 times [2023-08-25 08:16:04,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:16:04,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930991898] [2023-08-25 08:16:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:16:04,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:16:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:16:04,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:16:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:16:04,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:16:04,744 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:16:04,744 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:16:04,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 08:16:04,744 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:16:04,744 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:16:04,744 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:16:04,744 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-25 08:16:04,791 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:16:04,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 654 places, 708 transitions, 1812 flow [2023-08-25 08:16:05,038 INFO L124 PetriNetUnfolderBase]: 109/922 cut-off events. [2023-08-25 08:16:05,038 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-25 08:16:05,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 922 events. 109/922 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3421 event pairs, 0 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 1068. Up to 38 conditions per place. [2023-08-25 08:16:05,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 654 places, 708 transitions, 1812 flow [2023-08-25 08:16:05,061 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 654 places, 708 transitions, 1812 flow [2023-08-25 08:16:05,061 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:16:05,061 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 654 places, 708 transitions, 1812 flow [2023-08-25 08:16:05,061 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 654 places, 708 transitions, 1812 flow [2023-08-25 08:16:05,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 654 places, 708 transitions, 1812 flow [2023-08-25 08:16:05,241 INFO L124 PetriNetUnfolderBase]: 109/922 cut-off events. [2023-08-25 08:16:05,241 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-25 08:16:05,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 922 events. 109/922 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3421 event pairs, 0 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 1068. Up to 38 conditions per place. [2023-08-25 08:16:05,370 INFO L119 LiptonReduction]: Number of co-enabled transitions 447552 [2023-08-25 08:16:17,040 INFO L134 LiptonReduction]: Checked pairs total: 491559 [2023-08-25 08:16:17,041 INFO L136 LiptonReduction]: Total number of compositions: 893 [2023-08-25 08:16:17,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:16:17,042 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:16:17,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:16:17,060 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:16:17,060 INFO L124 PetriNetUnfolderBase]: 0/219 cut-off events. [2023-08-25 08:16:17,061 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-25 08:16:17,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:16:17,061 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] [2023-08-25 08:16:17,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:16:17,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:16:17,061 INFO L85 PathProgramCache]: Analyzing trace with hash 480606283, now seen corresponding path program 1 times [2023-08-25 08:16:17,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:16:17,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347765362] [2023-08-25 08:16:17,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:16:17,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:16:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:16:17,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:16:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:16:17,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:16:17,111 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:16:17,111 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:16:17,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 08:16:17,112 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:16:17,112 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:16:17,112 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:16:17,112 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-25 08:16:17,156 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:16:17,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 689 places, 746 transitions, 1929 flow [2023-08-25 08:16:17,367 INFO L124 PetriNetUnfolderBase]: 115/972 cut-off events. [2023-08-25 08:16:17,367 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-25 08:16:17,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1220 conditions, 972 events. 115/972 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3633 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 1139. Up to 40 conditions per place. [2023-08-25 08:16:17,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 689 places, 746 transitions, 1929 flow [2023-08-25 08:16:17,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 689 places, 746 transitions, 1929 flow [2023-08-25 08:16:17,402 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:16:17,402 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 689 places, 746 transitions, 1929 flow [2023-08-25 08:16:17,402 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 689 places, 746 transitions, 1929 flow [2023-08-25 08:16:17,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 689 places, 746 transitions, 1929 flow [2023-08-25 08:16:17,670 INFO L124 PetriNetUnfolderBase]: 115/972 cut-off events. [2023-08-25 08:16:17,670 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-25 08:16:17,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1220 conditions, 972 events. 115/972 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3633 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 1139. Up to 40 conditions per place. [2023-08-25 08:16:17,764 INFO L119 LiptonReduction]: Number of co-enabled transitions 499130 [2023-08-25 08:16:28,773 INFO L134 LiptonReduction]: Checked pairs total: 521744 [2023-08-25 08:16:28,773 INFO L136 LiptonReduction]: Total number of compositions: 932 [2023-08-25 08:16:28,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:16:28,794 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:16:28,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:16:28,831 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:16:28,831 INFO L124 PetriNetUnfolderBase]: 0/231 cut-off events. [2023-08-25 08:16:28,832 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-25 08:16:28,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:16:28,832 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] [2023-08-25 08:16:28,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:16:28,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:16:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash 986782849, now seen corresponding path program 1 times [2023-08-25 08:16:28,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:16:28,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125254916] [2023-08-25 08:16:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:16:28,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:16:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:16:28,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:16:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:16:28,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:16:28,898 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:16:28,898 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:16:28,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 08:16:28,898 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:16:28,899 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:16:28,899 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:16:28,899 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-25 08:16:28,964 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:16:28,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 724 places, 784 transitions, 2048 flow [2023-08-25 08:16:29,320 INFO L124 PetriNetUnfolderBase]: 121/1022 cut-off events. [2023-08-25 08:16:29,320 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-25 08:16:29,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 1022 events. 121/1022 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3817 event pairs, 0 based on Foata normal form. 0/780 useless extension candidates. Maximal degree in co-relation 1211. Up to 42 conditions per place. [2023-08-25 08:16:29,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 724 places, 784 transitions, 2048 flow [2023-08-25 08:16:29,382 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 724 places, 784 transitions, 2048 flow [2023-08-25 08:16:29,382 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:16:29,382 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 724 places, 784 transitions, 2048 flow [2023-08-25 08:16:29,382 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 724 places, 784 transitions, 2048 flow [2023-08-25 08:16:29,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 724 places, 784 transitions, 2048 flow [2023-08-25 08:16:29,676 INFO L124 PetriNetUnfolderBase]: 121/1022 cut-off events. [2023-08-25 08:16:29,676 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-25 08:16:29,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 1022 events. 121/1022 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3817 event pairs, 0 based on Foata normal form. 0/780 useless extension candidates. Maximal degree in co-relation 1211. Up to 42 conditions per place. [2023-08-25 08:16:29,807 INFO L119 LiptonReduction]: Number of co-enabled transitions 553520 [2023-08-25 08:16:42,834 INFO L134 LiptonReduction]: Checked pairs total: 594874 [2023-08-25 08:16:42,834 INFO L136 LiptonReduction]: Total number of compositions: 986 [2023-08-25 08:16:42,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:16:42,838 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:16:42,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:16:42,865 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:16:42,865 INFO L124 PetriNetUnfolderBase]: 0/243 cut-off events. [2023-08-25 08:16:42,865 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-25 08:16:42,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:16:42,865 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] [2023-08-25 08:16:42,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:16:42,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:16:42,866 INFO L85 PathProgramCache]: Analyzing trace with hash 751469508, now seen corresponding path program 1 times [2023-08-25 08:16:42,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:16:42,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344822261] [2023-08-25 08:16:42,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:16:42,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:16:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:16:42,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:16:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:16:42,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:16:42,944 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:16:42,944 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:16:42,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 08:16:42,944 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:16:42,945 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:16:42,945 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:16:42,945 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-25 08:16:42,998 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:16:43,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 759 places, 822 transitions, 2169 flow [2023-08-25 08:16:43,278 INFO L124 PetriNetUnfolderBase]: 127/1072 cut-off events. [2023-08-25 08:16:43,278 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-25 08:16:43,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 1072 events. 127/1072 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4062 event pairs, 0 based on Foata normal form. 0/818 useless extension candidates. Maximal degree in co-relation 1284. Up to 44 conditions per place. [2023-08-25 08:16:43,311 INFO L82 GeneralOperation]: Start removeDead. Operand has 759 places, 822 transitions, 2169 flow [2023-08-25 08:16:43,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 759 places, 822 transitions, 2169 flow [2023-08-25 08:16:43,325 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:16:43,325 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 759 places, 822 transitions, 2169 flow [2023-08-25 08:16:43,325 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 759 places, 822 transitions, 2169 flow [2023-08-25 08:16:43,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 759 places, 822 transitions, 2169 flow [2023-08-25 08:16:43,604 INFO L124 PetriNetUnfolderBase]: 127/1072 cut-off events. [2023-08-25 08:16:43,604 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-25 08:16:43,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 1072 events. 127/1072 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4062 event pairs, 0 based on Foata normal form. 0/818 useless extension candidates. Maximal degree in co-relation 1284. Up to 44 conditions per place. [2023-08-25 08:16:43,830 INFO L119 LiptonReduction]: Number of co-enabled transitions 610722 [2023-08-25 08:16:55,776 INFO L134 LiptonReduction]: Checked pairs total: 660911 [2023-08-25 08:16:55,777 INFO L136 LiptonReduction]: Total number of compositions: 1049 [2023-08-25 08:16:55,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:16:55,780 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:16:55,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:16:55,804 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:16:55,805 INFO L124 PetriNetUnfolderBase]: 0/255 cut-off events. [2023-08-25 08:16:55,805 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-25 08:16:55,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:16:55,805 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] [2023-08-25 08:16:55,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:16:55,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:16:55,821 INFO L85 PathProgramCache]: Analyzing trace with hash -663237192, now seen corresponding path program 1 times [2023-08-25 08:16:55,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:16:55,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14199685] [2023-08-25 08:16:55,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:16:55,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:16:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:16:55,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:16:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:16:55,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:16:55,875 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:16:55,875 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:16:55,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 08:16:55,876 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:16:55,876 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:16:55,876 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:16:55,876 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-08-25 08:16:55,933 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:16:55,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 794 places, 860 transitions, 2292 flow [2023-08-25 08:16:56,237 INFO L124 PetriNetUnfolderBase]: 133/1122 cut-off events. [2023-08-25 08:16:56,237 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-25 08:16:56,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1442 conditions, 1122 events. 133/1122 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4281 event pairs, 0 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 1358. Up to 46 conditions per place. [2023-08-25 08:16:56,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 794 places, 860 transitions, 2292 flow [2023-08-25 08:16:56,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 794 places, 860 transitions, 2292 flow [2023-08-25 08:16:56,287 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:16:56,287 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 794 places, 860 transitions, 2292 flow [2023-08-25 08:16:56,287 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 794 places, 860 transitions, 2292 flow [2023-08-25 08:16:56,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 794 places, 860 transitions, 2292 flow [2023-08-25 08:16:56,581 INFO L124 PetriNetUnfolderBase]: 133/1122 cut-off events. [2023-08-25 08:16:56,581 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-25 08:16:56,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1442 conditions, 1122 events. 133/1122 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4281 event pairs, 0 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 1358. Up to 46 conditions per place. [2023-08-25 08:16:56,753 INFO L119 LiptonReduction]: Number of co-enabled transitions 670736 [2023-08-25 08:17:10,603 INFO L134 LiptonReduction]: Checked pairs total: 726952 [2023-08-25 08:17:10,604 INFO L136 LiptonReduction]: Total number of compositions: 1090 [2023-08-25 08:17:10,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:17:10,606 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:17:10,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:17:10,645 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:17:10,645 INFO L124 PetriNetUnfolderBase]: 0/267 cut-off events. [2023-08-25 08:17:10,645 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-25 08:17:10,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:17:10,646 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] [2023-08-25 08:17:10,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:17:10,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:17:10,646 INFO L85 PathProgramCache]: Analyzing trace with hash -231663913, now seen corresponding path program 1 times [2023-08-25 08:17:10,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:17:10,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869981215] [2023-08-25 08:17:10,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:17:10,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:17:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:17:10,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:17:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:17:10,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:17:10,712 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:17:10,712 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:17:10,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 08:17:10,712 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:17:10,713 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:17:10,713 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:17:10,713 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-08-25 08:17:10,840 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:17:10,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 829 places, 898 transitions, 2417 flow [2023-08-25 08:17:11,366 INFO L124 PetriNetUnfolderBase]: 139/1172 cut-off events. [2023-08-25 08:17:11,367 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-25 08:17:11,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1518 conditions, 1172 events. 139/1172 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4492 event pairs, 0 based on Foata normal form. 0/894 useless extension candidates. Maximal degree in co-relation 1433. Up to 48 conditions per place. [2023-08-25 08:17:11,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 829 places, 898 transitions, 2417 flow [2023-08-25 08:17:11,453 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 829 places, 898 transitions, 2417 flow [2023-08-25 08:17:11,453 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:17:11,453 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 829 places, 898 transitions, 2417 flow [2023-08-25 08:17:11,454 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 829 places, 898 transitions, 2417 flow [2023-08-25 08:17:11,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 829 places, 898 transitions, 2417 flow [2023-08-25 08:17:11,927 INFO L124 PetriNetUnfolderBase]: 139/1172 cut-off events. [2023-08-25 08:17:11,927 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-25 08:17:11,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1518 conditions, 1172 events. 139/1172 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4492 event pairs, 0 based on Foata normal form. 0/894 useless extension candidates. Maximal degree in co-relation 1433. Up to 48 conditions per place. [2023-08-25 08:17:12,197 INFO L119 LiptonReduction]: Number of co-enabled transitions 733562 [2023-08-25 08:17:25,829 INFO L134 LiptonReduction]: Checked pairs total: 806224 [2023-08-25 08:17:25,829 INFO L136 LiptonReduction]: Total number of compositions: 1157 [2023-08-25 08:17:25,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:17:25,831 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:17:25,831 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:17:25,859 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:17:25,860 INFO L124 PetriNetUnfolderBase]: 0/279 cut-off events. [2023-08-25 08:17:25,860 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-25 08:17:25,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:17:25,860 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] [2023-08-25 08:17:25,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:17:25,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:17:25,860 INFO L85 PathProgramCache]: Analyzing trace with hash -2055948512, now seen corresponding path program 1 times [2023-08-25 08:17:25,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:17:25,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3936579] [2023-08-25 08:17:25,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:17:25,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:17:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:17:25,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:17:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:17:25,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:17:25,917 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:17:25,917 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:17:25,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 08:17:25,917 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:17:25,917 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:17:25,917 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:17:25,917 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-08-25 08:17:25,978 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:17:25,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 864 places, 936 transitions, 2544 flow [2023-08-25 08:17:26,377 INFO L124 PetriNetUnfolderBase]: 145/1222 cut-off events. [2023-08-25 08:17:26,378 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-25 08:17:26,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1595 conditions, 1222 events. 145/1222 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4632 event pairs, 0 based on Foata normal form. 0/932 useless extension candidates. Maximal degree in co-relation 1509. Up to 50 conditions per place. [2023-08-25 08:17:26,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 864 places, 936 transitions, 2544 flow [2023-08-25 08:17:26,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 864 places, 936 transitions, 2544 flow [2023-08-25 08:17:26,430 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:17:26,430 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 864 places, 936 transitions, 2544 flow [2023-08-25 08:17:26,431 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 864 places, 936 transitions, 2544 flow [2023-08-25 08:17:26,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 864 places, 936 transitions, 2544 flow [2023-08-25 08:17:26,779 INFO L124 PetriNetUnfolderBase]: 145/1222 cut-off events. [2023-08-25 08:17:26,780 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-25 08:17:26,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1595 conditions, 1222 events. 145/1222 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4632 event pairs, 0 based on Foata normal form. 0/932 useless extension candidates. Maximal degree in co-relation 1509. Up to 50 conditions per place. [2023-08-25 08:17:26,983 INFO L119 LiptonReduction]: Number of co-enabled transitions 799200 [2023-08-25 08:17:40,579 INFO L134 LiptonReduction]: Checked pairs total: 865005 [2023-08-25 08:17:40,580 INFO L136 LiptonReduction]: Total number of compositions: 1193 [2023-08-25 08:17:40,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:17:40,582 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:17:40,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:17:40,613 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:17:40,613 INFO L124 PetriNetUnfolderBase]: 0/291 cut-off events. [2023-08-25 08:17:40,613 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-25 08:17:40,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:17:40,613 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] [2023-08-25 08:17:40,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:17:40,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:17:40,613 INFO L85 PathProgramCache]: Analyzing trace with hash -882565861, now seen corresponding path program 1 times [2023-08-25 08:17:40,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:17:40,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774135315] [2023-08-25 08:17:40,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:17:40,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:17:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:17:40,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:17:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:17:40,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:17:40,663 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:17:40,664 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:17:40,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 08:17:40,664 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:17:40,664 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:17:40,664 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:17:40,664 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-08-25 08:17:40,723 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:17:40,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 974 transitions, 2673 flow [2023-08-25 08:17:41,122 INFO L124 PetriNetUnfolderBase]: 151/1272 cut-off events. [2023-08-25 08:17:41,123 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-25 08:17:41,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1673 conditions, 1272 events. 151/1272 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4883 event pairs, 0 based on Foata normal form. 0/970 useless extension candidates. Maximal degree in co-relation 1586. Up to 52 conditions per place. [2023-08-25 08:17:41,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 899 places, 974 transitions, 2673 flow [2023-08-25 08:17:41,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 899 places, 974 transitions, 2673 flow [2023-08-25 08:17:41,190 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:17:41,190 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 899 places, 974 transitions, 2673 flow [2023-08-25 08:17:41,190 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 899 places, 974 transitions, 2673 flow [2023-08-25 08:17:41,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 974 transitions, 2673 flow [2023-08-25 08:17:41,582 INFO L124 PetriNetUnfolderBase]: 151/1272 cut-off events. [2023-08-25 08:17:41,582 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-25 08:17:41,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1673 conditions, 1272 events. 151/1272 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4883 event pairs, 0 based on Foata normal form. 0/970 useless extension candidates. Maximal degree in co-relation 1586. Up to 52 conditions per place. [2023-08-25 08:17:41,916 INFO L119 LiptonReduction]: Number of co-enabled transitions 867650 [2023-08-25 08:17:57,449 INFO L134 LiptonReduction]: Checked pairs total: 972190 [2023-08-25 08:17:57,449 INFO L136 LiptonReduction]: Total number of compositions: 1257 [2023-08-25 08:17:57,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:17:57,452 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:17:57,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:17:57,485 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:17:57,485 INFO L124 PetriNetUnfolderBase]: 0/303 cut-off events. [2023-08-25 08:17:57,485 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-25 08:17:57,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:17:57,485 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] [2023-08-25 08:17:57,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:17:57,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:17:57,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1970744914, now seen corresponding path program 1 times [2023-08-25 08:17:57,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:17:57,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768756280] [2023-08-25 08:17:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:17:57,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:17:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:17:57,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:17:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:17:57,588 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:17:57,588 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:17:57,588 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:17:57,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 08:17:57,589 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:17:57,589 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:17:57,589 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:17:57,589 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-08-25 08:17:57,662 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:17:57,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 934 places, 1012 transitions, 2804 flow [2023-08-25 08:17:58,183 INFO L124 PetriNetUnfolderBase]: 157/1322 cut-off events. [2023-08-25 08:17:58,183 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-25 08:17:58,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1752 conditions, 1322 events. 157/1322 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5111 event pairs, 0 based on Foata normal form. 0/1008 useless extension candidates. Maximal degree in co-relation 1664. Up to 54 conditions per place. [2023-08-25 08:17:58,215 INFO L82 GeneralOperation]: Start removeDead. Operand has 934 places, 1012 transitions, 2804 flow [2023-08-25 08:17:58,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 934 places, 1012 transitions, 2804 flow [2023-08-25 08:17:58,228 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:17:58,228 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 934 places, 1012 transitions, 2804 flow [2023-08-25 08:17:58,228 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 934 places, 1012 transitions, 2804 flow [2023-08-25 08:17:58,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 934 places, 1012 transitions, 2804 flow [2023-08-25 08:17:58,642 INFO L124 PetriNetUnfolderBase]: 157/1322 cut-off events. [2023-08-25 08:17:58,643 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-25 08:17:58,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1752 conditions, 1322 events. 157/1322 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5111 event pairs, 0 based on Foata normal form. 0/1008 useless extension candidates. Maximal degree in co-relation 1664. Up to 54 conditions per place. [2023-08-25 08:17:58,882 INFO L119 LiptonReduction]: Number of co-enabled transitions 938912 [2023-08-25 08:18:14,931 INFO L134 LiptonReduction]: Checked pairs total: 1020801 [2023-08-25 08:18:14,932 INFO L136 LiptonReduction]: Total number of compositions: 1302 [2023-08-25 08:18:14,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:18:14,945 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:18:14,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:18:15,007 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:18:15,007 INFO L124 PetriNetUnfolderBase]: 0/315 cut-off events. [2023-08-25 08:18:15,007 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-25 08:18:15,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:18:15,008 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] [2023-08-25 08:18:15,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:18:15,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:18:15,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1625189297, now seen corresponding path program 1 times [2023-08-25 08:18:15,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:18:15,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253942431] [2023-08-25 08:18:15,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:18:15,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:18:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:18:15,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:18:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:18:15,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:18:15,123 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:18:15,123 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:18:15,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 08:18:15,123 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:18:15,124 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:18:15,124 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:18:15,124 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-08-25 08:18:15,183 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:18:15,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 969 places, 1050 transitions, 2937 flow [2023-08-25 08:18:15,647 INFO L124 PetriNetUnfolderBase]: 163/1372 cut-off events. [2023-08-25 08:18:15,647 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-25 08:18:15,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 1372 events. 163/1372 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5283 event pairs, 0 based on Foata normal form. 0/1046 useless extension candidates. Maximal degree in co-relation 1743. Up to 56 conditions per place. [2023-08-25 08:18:15,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 969 places, 1050 transitions, 2937 flow [2023-08-25 08:18:15,727 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 969 places, 1050 transitions, 2937 flow [2023-08-25 08:18:15,727 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:18:15,727 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 969 places, 1050 transitions, 2937 flow [2023-08-25 08:18:15,727 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 969 places, 1050 transitions, 2937 flow [2023-08-25 08:18:15,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 969 places, 1050 transitions, 2937 flow [2023-08-25 08:18:16,277 INFO L124 PetriNetUnfolderBase]: 163/1372 cut-off events. [2023-08-25 08:18:16,277 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-25 08:18:16,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 1372 events. 163/1372 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5283 event pairs, 0 based on Foata normal form. 0/1046 useless extension candidates. Maximal degree in co-relation 1743. Up to 56 conditions per place. [2023-08-25 08:18:16,461 INFO L119 LiptonReduction]: Number of co-enabled transitions 1012986 [2023-08-25 08:18:31,928 INFO L134 LiptonReduction]: Checked pairs total: 1155854 [2023-08-25 08:18:31,928 INFO L136 LiptonReduction]: Total number of compositions: 1365 [2023-08-25 08:18:31,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:18:31,930 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:18:31,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:18:31,998 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:18:31,998 INFO L124 PetriNetUnfolderBase]: 0/327 cut-off events. [2023-08-25 08:18:31,998 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-25 08:18:31,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:18:31,998 INFO L208 CegarLoopForPetriNet]: trace histogram [28, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:18:31,998 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:18:31,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:18:31,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1536317920, now seen corresponding path program 1 times [2023-08-25 08:18:31,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:18:31,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467472516] [2023-08-25 08:18:31,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:18:31,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:18:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:18:32,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:18:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:18:32,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:18:32,113 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:18:32,113 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:18:32,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 08:18:32,113 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:18:32,113 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:18:32,113 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:18:32,113 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-08-25 08:18:32,198 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:18:32,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1004 places, 1088 transitions, 3072 flow [2023-08-25 08:18:32,718 INFO L124 PetriNetUnfolderBase]: 169/1422 cut-off events. [2023-08-25 08:18:32,719 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-25 08:18:32,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 1422 events. 169/1422 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5488 event pairs, 0 based on Foata normal form. 0/1084 useless extension candidates. Maximal degree in co-relation 1823. Up to 58 conditions per place. [2023-08-25 08:18:32,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 1004 places, 1088 transitions, 3072 flow [2023-08-25 08:18:32,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1004 places, 1088 transitions, 3072 flow [2023-08-25 08:18:32,805 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:18:32,805 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1004 places, 1088 transitions, 3072 flow [2023-08-25 08:18:32,805 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1004 places, 1088 transitions, 3072 flow [2023-08-25 08:18:32,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1004 places, 1088 transitions, 3072 flow [2023-08-25 08:18:33,293 INFO L124 PetriNetUnfolderBase]: 169/1422 cut-off events. [2023-08-25 08:18:33,294 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-25 08:18:33,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 1422 events. 169/1422 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5488 event pairs, 0 based on Foata normal form. 0/1084 useless extension candidates. Maximal degree in co-relation 1823. Up to 58 conditions per place. [2023-08-25 08:18:33,637 INFO L119 LiptonReduction]: Number of co-enabled transitions 1089872 [2023-08-25 08:18:50,776 INFO L134 LiptonReduction]: Checked pairs total: 1170254 [2023-08-25 08:18:50,776 INFO L136 LiptonReduction]: Total number of compositions: 1382 [2023-08-25 08:18:50,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:18:50,786 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:18:50,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:18:50,827 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:18:50,827 INFO L124 PetriNetUnfolderBase]: 0/339 cut-off events. [2023-08-25 08:18:50,827 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-25 08:18:50,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:18:50,828 INFO L208 CegarLoopForPetriNet]: trace histogram [29, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:18:50,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:18:50,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:18:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash -325628890, now seen corresponding path program 1 times [2023-08-25 08:18:50,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:18:50,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241606544] [2023-08-25 08:18:50,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:18:50,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:18:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:18:50,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:18:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:18:50,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:18:50,989 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:18:50,989 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:18:50,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 08:18:50,989 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:18:50,990 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:18:50,990 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:18:50,990 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-08-25 08:18:51,050 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:18:51,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1039 places, 1126 transitions, 3209 flow [2023-08-25 08:18:51,578 INFO L124 PetriNetUnfolderBase]: 175/1472 cut-off events. [2023-08-25 08:18:51,578 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-25 08:18:51,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 1472 events. 175/1472 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5688 event pairs, 0 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 1904. Up to 60 conditions per place. [2023-08-25 08:18:51,648 INFO L82 GeneralOperation]: Start removeDead. Operand has 1039 places, 1126 transitions, 3209 flow [2023-08-25 08:18:51,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1039 places, 1126 transitions, 3209 flow [2023-08-25 08:18:51,673 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:18:51,674 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1039 places, 1126 transitions, 3209 flow [2023-08-25 08:18:51,674 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1039 places, 1126 transitions, 3209 flow [2023-08-25 08:18:51,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1039 places, 1126 transitions, 3209 flow [2023-08-25 08:18:52,305 INFO L124 PetriNetUnfolderBase]: 175/1472 cut-off events. [2023-08-25 08:18:52,305 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-25 08:18:52,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 1472 events. 175/1472 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5688 event pairs, 0 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 1904. Up to 60 conditions per place. [2023-08-25 08:18:52,526 INFO L119 LiptonReduction]: Number of co-enabled transitions 1169570 [2023-08-25 08:19:10,490 INFO L134 LiptonReduction]: Checked pairs total: 1297651 [2023-08-25 08:19:10,490 INFO L136 LiptonReduction]: Total number of compositions: 1416 [2023-08-25 08:19:10,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:19:10,492 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:19:10,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:19:10,535 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:19:10,535 INFO L124 PetriNetUnfolderBase]: 0/351 cut-off events. [2023-08-25 08:19:10,535 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-25 08:19:10,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:19:10,535 INFO L208 CegarLoopForPetriNet]: trace histogram [30, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:19:10,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:19:10,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:19:10,536 INFO L85 PathProgramCache]: Analyzing trace with hash -342542492, now seen corresponding path program 1 times [2023-08-25 08:19:10,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:19:10,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848921757] [2023-08-25 08:19:10,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:19:10,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:19:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:19:10,582 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:19:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:19:10,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:19:10,611 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:19:10,611 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:19:10,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-25 08:19:10,611 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:19:10,611 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:19:10,611 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:19:10,611 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-08-25 08:19:10,687 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:19:10,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1074 places, 1164 transitions, 3348 flow [2023-08-25 08:19:11,241 INFO L124 PetriNetUnfolderBase]: 181/1522 cut-off events. [2023-08-25 08:19:11,241 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-25 08:19:11,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1522 events. 181/1522 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5898 event pairs, 0 based on Foata normal form. 0/1160 useless extension candidates. Maximal degree in co-relation 1986. Up to 62 conditions per place. [2023-08-25 08:19:11,315 INFO L82 GeneralOperation]: Start removeDead. Operand has 1074 places, 1164 transitions, 3348 flow [2023-08-25 08:19:11,340 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1074 places, 1164 transitions, 3348 flow [2023-08-25 08:19:11,340 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:19:11,340 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1074 places, 1164 transitions, 3348 flow [2023-08-25 08:19:11,340 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1074 places, 1164 transitions, 3348 flow [2023-08-25 08:19:11,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1074 places, 1164 transitions, 3348 flow [2023-08-25 08:19:11,932 INFO L124 PetriNetUnfolderBase]: 181/1522 cut-off events. [2023-08-25 08:19:11,932 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-25 08:19:11,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1522 events. 181/1522 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5898 event pairs, 0 based on Foata normal form. 0/1160 useless extension candidates. Maximal degree in co-relation 1986. Up to 62 conditions per place. [2023-08-25 08:19:12,208 INFO L119 LiptonReduction]: Number of co-enabled transitions 1252080 [2023-08-25 08:19:32,317 INFO L134 LiptonReduction]: Checked pairs total: 1357961 [2023-08-25 08:19:32,317 INFO L136 LiptonReduction]: Total number of compositions: 1487 [2023-08-25 08:19:32,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:19:32,319 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:19:32,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:19:32,364 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:19:32,364 INFO L124 PetriNetUnfolderBase]: 0/363 cut-off events. [2023-08-25 08:19:32,364 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-25 08:19:32,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:19:32,365 INFO L208 CegarLoopForPetriNet]: trace histogram [31, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:19:32,365 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:19:32,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:19:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash -522648874, now seen corresponding path program 1 times [2023-08-25 08:19:32,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:19:32,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609647693] [2023-08-25 08:19:32,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:19:32,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:19:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:19:32,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:19:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:19:32,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:19:32,431 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:19:32,431 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:19:32,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-25 08:19:32,431 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:19:32,432 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:19:32,432 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:19:32,432 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-08-25 08:19:32,516 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:19:32,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1109 places, 1202 transitions, 3489 flow [2023-08-25 08:19:33,309 INFO L124 PetriNetUnfolderBase]: 187/1572 cut-off events. [2023-08-25 08:19:33,310 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-25 08:19:33,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2162 conditions, 1572 events. 187/1572 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6068 event pairs, 0 based on Foata normal form. 0/1198 useless extension candidates. Maximal degree in co-relation 2069. Up to 64 conditions per place. [2023-08-25 08:19:33,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 1109 places, 1202 transitions, 3489 flow [2023-08-25 08:19:33,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1109 places, 1202 transitions, 3489 flow [2023-08-25 08:19:33,416 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:19:33,416 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1109 places, 1202 transitions, 3489 flow [2023-08-25 08:19:33,418 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1109 places, 1202 transitions, 3489 flow [2023-08-25 08:19:33,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1109 places, 1202 transitions, 3489 flow [2023-08-25 08:19:34,088 INFO L124 PetriNetUnfolderBase]: 187/1572 cut-off events. [2023-08-25 08:19:34,089 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-25 08:19:34,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2162 conditions, 1572 events. 187/1572 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6068 event pairs, 0 based on Foata normal form. 0/1198 useless extension candidates. Maximal degree in co-relation 2069. Up to 64 conditions per place. [2023-08-25 08:19:34,354 INFO L119 LiptonReduction]: Number of co-enabled transitions 1337402 [2023-08-25 08:19:54,958 INFO L134 LiptonReduction]: Checked pairs total: 1451788 [2023-08-25 08:19:54,958 INFO L136 LiptonReduction]: Total number of compositions: 1528 [2023-08-25 08:19:54,959 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:19:54,960 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:19:54,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:19:55,066 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:19:55,066 INFO L124 PetriNetUnfolderBase]: 0/375 cut-off events. [2023-08-25 08:19:55,066 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-25 08:19:55,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:19:55,066 INFO L208 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:19:55,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:19:55,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:19:55,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1932846340, now seen corresponding path program 1 times [2023-08-25 08:19:55,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:19:55,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103528322] [2023-08-25 08:19:55,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:19:55,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:19:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:19:55,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:19:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:19:55,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:19:55,128 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:19:55,128 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:19:55,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-25 08:19:55,129 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:19:55,129 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:19:55,129 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:19:55,129 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-08-25 08:19:55,195 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:19:55,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1144 places, 1240 transitions, 3632 flow [2023-08-25 08:19:55,828 INFO L124 PetriNetUnfolderBase]: 193/1622 cut-off events. [2023-08-25 08:19:55,829 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-25 08:19:55,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2247 conditions, 1622 events. 193/1622 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6280 event pairs, 0 based on Foata normal form. 0/1236 useless extension candidates. Maximal degree in co-relation 2153. Up to 66 conditions per place. [2023-08-25 08:19:55,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 1144 places, 1240 transitions, 3632 flow [2023-08-25 08:19:55,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1144 places, 1240 transitions, 3632 flow [2023-08-25 08:19:55,944 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:19:55,944 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1144 places, 1240 transitions, 3632 flow [2023-08-25 08:19:55,944 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1144 places, 1240 transitions, 3632 flow [2023-08-25 08:19:55,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1144 places, 1240 transitions, 3632 flow [2023-08-25 08:19:56,668 INFO L124 PetriNetUnfolderBase]: 193/1622 cut-off events. [2023-08-25 08:19:56,669 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-25 08:19:56,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2247 conditions, 1622 events. 193/1622 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6280 event pairs, 0 based on Foata normal form. 0/1236 useless extension candidates. Maximal degree in co-relation 2153. Up to 66 conditions per place. [2023-08-25 08:19:56,942 INFO L119 LiptonReduction]: Number of co-enabled transitions 1425536 [2023-08-25 08:20:15,220 INFO L134 LiptonReduction]: Checked pairs total: 1550485 [2023-08-25 08:20:15,220 INFO L136 LiptonReduction]: Total number of compositions: 1564 [2023-08-25 08:20:15,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:20:15,224 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:20:15,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:20:15,281 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:20:15,281 INFO L124 PetriNetUnfolderBase]: 0/387 cut-off events. [2023-08-25 08:20:15,281 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-25 08:20:15,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:20:15,282 INFO L208 CegarLoopForPetriNet]: trace histogram [33, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:20:15,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:20:15,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:20:15,282 INFO L85 PathProgramCache]: Analyzing trace with hash 679409571, now seen corresponding path program 1 times [2023-08-25 08:20:15,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:20:15,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216592867] [2023-08-25 08:20:15,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:20:15,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:20:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:20:15,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:20:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:20:15,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:20:15,354 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:20:15,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:20:15,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-25 08:20:15,354 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:20:15,355 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:20:15,355 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:20:15,355 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-08-25 08:20:15,432 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:20:15,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1179 places, 1278 transitions, 3777 flow [2023-08-25 08:20:16,107 INFO L124 PetriNetUnfolderBase]: 199/1672 cut-off events. [2023-08-25 08:20:16,107 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-25 08:20:16,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2333 conditions, 1672 events. 199/1672 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6502 event pairs, 0 based on Foata normal form. 0/1274 useless extension candidates. Maximal degree in co-relation 2238. Up to 68 conditions per place. [2023-08-25 08:20:16,199 INFO L82 GeneralOperation]: Start removeDead. Operand has 1179 places, 1278 transitions, 3777 flow [2023-08-25 08:20:16,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1179 places, 1278 transitions, 3777 flow [2023-08-25 08:20:16,230 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:20:16,230 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1179 places, 1278 transitions, 3777 flow [2023-08-25 08:20:16,230 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1179 places, 1278 transitions, 3777 flow [2023-08-25 08:20:16,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1179 places, 1278 transitions, 3777 flow [2023-08-25 08:20:16,945 INFO L124 PetriNetUnfolderBase]: 199/1672 cut-off events. [2023-08-25 08:20:16,945 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-25 08:20:17,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2333 conditions, 1672 events. 199/1672 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6502 event pairs, 0 based on Foata normal form. 0/1274 useless extension candidates. Maximal degree in co-relation 2238. Up to 68 conditions per place. [2023-08-25 08:20:17,281 INFO L119 LiptonReduction]: Number of co-enabled transitions 1516482 [2023-08-25 08:20:40,281 INFO L134 LiptonReduction]: Checked pairs total: 1652893 [2023-08-25 08:20:40,281 INFO L136 LiptonReduction]: Total number of compositions: 1648 [2023-08-25 08:20:40,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:20:40,283 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:20:40,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:20:40,339 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:20:40,339 INFO L124 PetriNetUnfolderBase]: 0/399 cut-off events. [2023-08-25 08:20:40,339 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-25 08:20:40,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:20:40,339 INFO L208 CegarLoopForPetriNet]: trace histogram [34, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:20:40,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:20:40,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:20:40,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1271275402, now seen corresponding path program 1 times [2023-08-25 08:20:40,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:20:40,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8580057] [2023-08-25 08:20:40,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:20:40,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:20:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:20:40,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:20:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:20:40,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:20:40,435 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:20:40,435 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:20:40,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-25 08:20:40,435 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:20:40,435 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:20:40,435 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:20:40,436 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2023-08-25 08:20:40,507 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:20:40,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1214 places, 1316 transitions, 3924 flow [2023-08-25 08:20:41,340 INFO L124 PetriNetUnfolderBase]: 205/1722 cut-off events. [2023-08-25 08:20:41,340 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-25 08:20:41,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2420 conditions, 1722 events. 205/1722 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6682 event pairs, 0 based on Foata normal form. 0/1312 useless extension candidates. Maximal degree in co-relation 2324. Up to 70 conditions per place. [2023-08-25 08:20:41,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 1214 places, 1316 transitions, 3924 flow [2023-08-25 08:20:41,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1214 places, 1316 transitions, 3924 flow [2023-08-25 08:20:41,425 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:20:41,425 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1214 places, 1316 transitions, 3924 flow [2023-08-25 08:20:41,425 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1214 places, 1316 transitions, 3924 flow [2023-08-25 08:20:41,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1214 places, 1316 transitions, 3924 flow [2023-08-25 08:20:42,168 INFO L124 PetriNetUnfolderBase]: 205/1722 cut-off events. [2023-08-25 08:20:42,168 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-25 08:20:42,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2420 conditions, 1722 events. 205/1722 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6682 event pairs, 0 based on Foata normal form. 0/1312 useless extension candidates. Maximal degree in co-relation 2324. Up to 70 conditions per place. [2023-08-25 08:20:42,615 INFO L119 LiptonReduction]: Number of co-enabled transitions 1610240 [2023-08-25 08:21:05,498 INFO L134 LiptonReduction]: Checked pairs total: 1761443 [2023-08-25 08:21:05,498 INFO L136 LiptonReduction]: Total number of compositions: 1701 [2023-08-25 08:21:05,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:21:05,500 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:21:05,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:21:05,559 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:21:05,560 INFO L124 PetriNetUnfolderBase]: 0/411 cut-off events. [2023-08-25 08:21:05,560 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-25 08:21:05,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:21:05,560 INFO L208 CegarLoopForPetriNet]: trace histogram [35, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:21:05,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:21:05,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:21:05,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1531641160, now seen corresponding path program 1 times [2023-08-25 08:21:05,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:21:05,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495702656] [2023-08-25 08:21:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:21:05,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:21:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:21:05,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:21:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:21:05,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:21:05,634 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:21:05,634 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:21:05,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-25 08:21:05,634 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:21:05,634 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:21:05,634 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:21:05,634 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2023-08-25 08:21:05,707 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:21:05,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1249 places, 1354 transitions, 4073 flow [2023-08-25 08:21:06,565 INFO L124 PetriNetUnfolderBase]: 211/1772 cut-off events. [2023-08-25 08:21:06,565 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-25 08:21:06,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2508 conditions, 1772 events. 211/1772 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6881 event pairs, 0 based on Foata normal form. 0/1350 useless extension candidates. Maximal degree in co-relation 2411. Up to 72 conditions per place. [2023-08-25 08:21:06,633 INFO L82 GeneralOperation]: Start removeDead. Operand has 1249 places, 1354 transitions, 4073 flow [2023-08-25 08:21:06,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1249 places, 1354 transitions, 4073 flow [2023-08-25 08:21:06,656 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:21:06,656 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1249 places, 1354 transitions, 4073 flow [2023-08-25 08:21:06,656 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1249 places, 1354 transitions, 4073 flow [2023-08-25 08:21:06,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1249 places, 1354 transitions, 4073 flow [2023-08-25 08:21:07,397 INFO L124 PetriNetUnfolderBase]: 211/1772 cut-off events. [2023-08-25 08:21:07,397 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-25 08:21:07,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2508 conditions, 1772 events. 211/1772 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6881 event pairs, 0 based on Foata normal form. 0/1350 useless extension candidates. Maximal degree in co-relation 2411. Up to 72 conditions per place. [2023-08-25 08:21:08,104 INFO L119 LiptonReduction]: Number of co-enabled transitions 1706810 [2023-08-25 08:21:31,679 INFO L134 LiptonReduction]: Checked pairs total: 1865120 [2023-08-25 08:21:31,680 INFO L136 LiptonReduction]: Total number of compositions: 1726 [2023-08-25 08:21:31,681 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:21:31,681 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:21:31,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:21:31,745 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:21:31,745 INFO L124 PetriNetUnfolderBase]: 0/423 cut-off events. [2023-08-25 08:21:31,745 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-25 08:21:31,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:21:31,745 INFO L208 CegarLoopForPetriNet]: trace histogram [36, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:21:31,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:21:31,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:21:31,746 INFO L85 PathProgramCache]: Analyzing trace with hash -537929750, now seen corresponding path program 1 times [2023-08-25 08:21:31,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:21:31,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033184633] [2023-08-25 08:21:31,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:21:31,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:21:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:21:31,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:21:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:21:31,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:21:31,826 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:21:31,826 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:21:31,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-25 08:21:31,826 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:21:31,827 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:21:31,827 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:21:31,827 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2023-08-25 08:21:32,000 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:21:32,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1284 places, 1392 transitions, 4224 flow [2023-08-25 08:21:32,997 INFO L124 PetriNetUnfolderBase]: 217/1822 cut-off events. [2023-08-25 08:21:32,997 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-25 08:21:33,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2597 conditions, 1822 events. 217/1822 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7127 event pairs, 0 based on Foata normal form. 0/1388 useless extension candidates. Maximal degree in co-relation 2499. Up to 74 conditions per place. [2023-08-25 08:21:33,112 INFO L82 GeneralOperation]: Start removeDead. Operand has 1284 places, 1392 transitions, 4224 flow [2023-08-25 08:21:33,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1284 places, 1392 transitions, 4224 flow [2023-08-25 08:21:33,155 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:21:33,155 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1284 places, 1392 transitions, 4224 flow [2023-08-25 08:21:33,155 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1284 places, 1392 transitions, 4224 flow [2023-08-25 08:21:33,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1284 places, 1392 transitions, 4224 flow [2023-08-25 08:21:34,029 INFO L124 PetriNetUnfolderBase]: 217/1822 cut-off events. [2023-08-25 08:21:34,030 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-25 08:21:34,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2597 conditions, 1822 events. 217/1822 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7127 event pairs, 0 based on Foata normal form. 0/1388 useless extension candidates. Maximal degree in co-relation 2499. Up to 74 conditions per place. [2023-08-25 08:21:34,476 INFO L119 LiptonReduction]: Number of co-enabled transitions 1806192 [2023-08-25 08:21:57,886 INFO L134 LiptonReduction]: Checked pairs total: 1934665 [2023-08-25 08:21:57,886 INFO L136 LiptonReduction]: Total number of compositions: 1750 [2023-08-25 08:21:57,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:21:57,888 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:21:57,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:21:57,954 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:21:57,954 INFO L124 PetriNetUnfolderBase]: 0/435 cut-off events. [2023-08-25 08:21:57,954 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-25 08:21:57,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:21:57,954 INFO L208 CegarLoopForPetriNet]: trace histogram [37, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:21:57,954 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:21:57,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:21:57,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1033847209, now seen corresponding path program 1 times [2023-08-25 08:21:57,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:21:57,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116532413] [2023-08-25 08:21:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:21:57,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:21:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:21:58,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:21:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:21:58,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:21:58,053 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:21:58,053 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:21:58,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-25 08:21:58,053 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:21:58,053 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:21:58,053 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:21:58,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2023-08-25 08:21:58,181 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:21:58,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1319 places, 1430 transitions, 4377 flow [2023-08-25 08:21:59,175 INFO L124 PetriNetUnfolderBase]: 223/1872 cut-off events. [2023-08-25 08:21:59,175 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-25 08:21:59,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2687 conditions, 1872 events. 223/1872 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7261 event pairs, 0 based on Foata normal form. 0/1426 useless extension candidates. Maximal degree in co-relation 2588. Up to 76 conditions per place. [2023-08-25 08:21:59,262 INFO L82 GeneralOperation]: Start removeDead. Operand has 1319 places, 1430 transitions, 4377 flow [2023-08-25 08:21:59,290 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1319 places, 1430 transitions, 4377 flow [2023-08-25 08:21:59,290 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:21:59,290 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1319 places, 1430 transitions, 4377 flow [2023-08-25 08:21:59,291 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1319 places, 1430 transitions, 4377 flow [2023-08-25 08:21:59,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1319 places, 1430 transitions, 4377 flow [2023-08-25 08:22:00,216 INFO L124 PetriNetUnfolderBase]: 223/1872 cut-off events. [2023-08-25 08:22:00,216 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-25 08:22:00,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2687 conditions, 1872 events. 223/1872 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7261 event pairs, 0 based on Foata normal form. 0/1426 useless extension candidates. Maximal degree in co-relation 2588. Up to 76 conditions per place. [2023-08-25 08:22:00,801 INFO L119 LiptonReduction]: Number of co-enabled transitions 1908386 [2023-08-25 08:22:24,645 INFO L134 LiptonReduction]: Checked pairs total: 2051161 [2023-08-25 08:22:24,645 INFO L136 LiptonReduction]: Total number of compositions: 1817 [2023-08-25 08:22:24,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:22:24,647 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:22:24,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:22:24,717 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:22:24,717 INFO L124 PetriNetUnfolderBase]: 0/447 cut-off events. [2023-08-25 08:22:24,717 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-25 08:22:24,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:22:24,717 INFO L208 CegarLoopForPetriNet]: trace histogram [38, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:22:24,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:22:24,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:22:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1066309315, now seen corresponding path program 1 times [2023-08-25 08:22:24,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:22:24,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125317670] [2023-08-25 08:22:24,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:22:24,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:22:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:22:24,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:22:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:22:24,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:22:24,800 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:22:24,800 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:22:24,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-25 08:22:24,800 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:22:24,800 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:22:24,800 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:22:24,800 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2023-08-25 08:22:24,889 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:22:24,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1354 places, 1468 transitions, 4532 flow [2023-08-25 08:22:25,870 INFO L124 PetriNetUnfolderBase]: 229/1922 cut-off events. [2023-08-25 08:22:25,870 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-25 08:22:26,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2778 conditions, 1922 events. 229/1922 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7500 event pairs, 0 based on Foata normal form. 0/1464 useless extension candidates. Maximal degree in co-relation 2678. Up to 78 conditions per place. [2023-08-25 08:22:26,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 1354 places, 1468 transitions, 4532 flow [2023-08-25 08:22:26,096 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1354 places, 1468 transitions, 4532 flow [2023-08-25 08:22:26,096 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:22:26,096 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1354 places, 1468 transitions, 4532 flow [2023-08-25 08:22:26,096 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1354 places, 1468 transitions, 4532 flow [2023-08-25 08:22:26,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1354 places, 1468 transitions, 4532 flow [2023-08-25 08:22:27,063 INFO L124 PetriNetUnfolderBase]: 229/1922 cut-off events. [2023-08-25 08:22:27,063 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-25 08:22:27,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2778 conditions, 1922 events. 229/1922 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7500 event pairs, 0 based on Foata normal form. 0/1464 useless extension candidates. Maximal degree in co-relation 2678. Up to 78 conditions per place. [2023-08-25 08:22:27,927 INFO L119 LiptonReduction]: Number of co-enabled transitions 2013392 [2023-08-25 08:22:58,126 INFO L134 LiptonReduction]: Checked pairs total: 2187928 [2023-08-25 08:22:58,127 INFO L136 LiptonReduction]: Total number of compositions: 1867 [2023-08-25 08:22:58,128 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:22:58,128 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:22:58,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:22:58,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:22:58,204 INFO L124 PetriNetUnfolderBase]: 0/459 cut-off events. [2023-08-25 08:22:58,204 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-25 08:22:58,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:22:58,204 INFO L208 CegarLoopForPetriNet]: trace histogram [39, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:22:58,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:22:58,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:22:58,205 INFO L85 PathProgramCache]: Analyzing trace with hash 183040602, now seen corresponding path program 1 times [2023-08-25 08:22:58,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:22:58,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505747804] [2023-08-25 08:22:58,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:22:58,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:22:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:22:58,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:22:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:22:58,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:22:58,290 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:22:58,290 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:22:58,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-25 08:22:58,290 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:22:58,290 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:22:58,290 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:22:58,290 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2023-08-25 08:22:58,378 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:22:58,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1389 places, 1506 transitions, 4689 flow [2023-08-25 08:22:59,500 INFO L124 PetriNetUnfolderBase]: 235/1972 cut-off events. [2023-08-25 08:22:59,501 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-25 08:22:59,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2870 conditions, 1972 events. 235/1972 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7692 event pairs, 0 based on Foata normal form. 0/1502 useless extension candidates. Maximal degree in co-relation 2769. Up to 80 conditions per place. [2023-08-25 08:22:59,625 INFO L82 GeneralOperation]: Start removeDead. Operand has 1389 places, 1506 transitions, 4689 flow [2023-08-25 08:22:59,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1389 places, 1506 transitions, 4689 flow [2023-08-25 08:22:59,670 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:22:59,670 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1389 places, 1506 transitions, 4689 flow [2023-08-25 08:22:59,670 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1389 places, 1506 transitions, 4689 flow [2023-08-25 08:22:59,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1389 places, 1506 transitions, 4689 flow [2023-08-25 08:23:00,942 INFO L124 PetriNetUnfolderBase]: 235/1972 cut-off events. [2023-08-25 08:23:00,942 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-25 08:23:01,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2870 conditions, 1972 events. 235/1972 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7692 event pairs, 0 based on Foata normal form. 0/1502 useless extension candidates. Maximal degree in co-relation 2769. Up to 80 conditions per place. [2023-08-25 08:23:01,472 INFO L119 LiptonReduction]: Number of co-enabled transitions 2121210 [2023-08-25 08:23:25,675 INFO L134 LiptonReduction]: Checked pairs total: 2287404 [2023-08-25 08:23:25,675 INFO L136 LiptonReduction]: Total number of compositions: 1908 [2023-08-25 08:23:25,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:23:25,677 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:23:25,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:23:25,755 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:23:25,755 INFO L124 PetriNetUnfolderBase]: 0/471 cut-off events. [2023-08-25 08:23:25,755 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-25 08:23:25,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:23:25,756 INFO L208 CegarLoopForPetriNet]: trace histogram [40, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:23:25,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:23:25,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:23:25,756 INFO L85 PathProgramCache]: Analyzing trace with hash 536326128, now seen corresponding path program 1 times [2023-08-25 08:23:25,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:23:25,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711228086] [2023-08-25 08:23:25,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:23:25,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:23:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:23:25,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:23:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:23:25,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:23:25,848 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:23:25,848 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:23:25,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-25 08:23:25,848 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:23:25,849 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:23:25,849 WARN L233 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:23:25,849 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2023-08-25 08:23:25,938 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:23:25,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1424 places, 1544 transitions, 4848 flow [2023-08-25 08:23:27,042 INFO L124 PetriNetUnfolderBase]: 241/2022 cut-off events. [2023-08-25 08:23:27,042 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-25 08:23:27,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2963 conditions, 2022 events. 241/2022 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7889 event pairs, 0 based on Foata normal form. 0/1540 useless extension candidates. Maximal degree in co-relation 2861. Up to 82 conditions per place. [2023-08-25 08:23:27,164 INFO L82 GeneralOperation]: Start removeDead. Operand has 1424 places, 1544 transitions, 4848 flow [2023-08-25 08:23:27,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1424 places, 1544 transitions, 4848 flow [2023-08-25 08:23:27,207 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:23:27,207 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1424 places, 1544 transitions, 4848 flow [2023-08-25 08:23:27,207 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1424 places, 1544 transitions, 4848 flow [2023-08-25 08:23:27,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1424 places, 1544 transitions, 4848 flow [2023-08-25 08:23:28,295 INFO L124 PetriNetUnfolderBase]: 241/2022 cut-off events. [2023-08-25 08:23:28,295 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-25 08:23:28,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2963 conditions, 2022 events. 241/2022 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7889 event pairs, 0 based on Foata normal form. 0/1540 useless extension candidates. Maximal degree in co-relation 2861. Up to 82 conditions per place. [2023-08-25 08:23:28,878 INFO L119 LiptonReduction]: Number of co-enabled transitions 2231840 [2023-08-25 08:23:53,103 INFO L134 LiptonReduction]: Checked pairs total: 2473309 [2023-08-25 08:23:53,103 INFO L136 LiptonReduction]: Total number of compositions: 1919 [2023-08-25 08:23:53,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:23:53,105 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:23:53,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:23:53,189 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:23:53,189 INFO L124 PetriNetUnfolderBase]: 0/483 cut-off events. [2023-08-25 08:23:53,189 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-25 08:23:53,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:23:53,189 INFO L208 CegarLoopForPetriNet]: trace histogram [41, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:23:53,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:23:53,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:23:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1063021887, now seen corresponding path program 1 times [2023-08-25 08:23:53,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:23:53,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758648094] [2023-08-25 08:23:53,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:23:53,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:23:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:23:53,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:23:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:23:53,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:23:53,287 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:23:53,287 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:23:53,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-25 08:23:53,287 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:23:53,287 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:23:53,287 WARN L233 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:23:53,287 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2023-08-25 08:23:53,388 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:23:53,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1459 places, 1582 transitions, 5009 flow [2023-08-25 08:23:54,865 INFO L124 PetriNetUnfolderBase]: 247/2072 cut-off events. [2023-08-25 08:23:54,865 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-25 08:23:54,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3057 conditions, 2072 events. 247/2072 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8116 event pairs, 0 based on Foata normal form. 0/1578 useless extension candidates. Maximal degree in co-relation 2954. Up to 84 conditions per place. [2023-08-25 08:23:54,961 INFO L82 GeneralOperation]: Start removeDead. Operand has 1459 places, 1582 transitions, 5009 flow [2023-08-25 08:23:54,992 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1459 places, 1582 transitions, 5009 flow [2023-08-25 08:23:54,992 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:23:54,992 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1459 places, 1582 transitions, 5009 flow [2023-08-25 08:23:54,992 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1459 places, 1582 transitions, 5009 flow [2023-08-25 08:23:54,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1459 places, 1582 transitions, 5009 flow [2023-08-25 08:23:56,102 INFO L124 PetriNetUnfolderBase]: 247/2072 cut-off events. [2023-08-25 08:23:56,103 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-25 08:23:56,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3057 conditions, 2072 events. 247/2072 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8116 event pairs, 0 based on Foata normal form. 0/1578 useless extension candidates. Maximal degree in co-relation 2954. Up to 84 conditions per place. [2023-08-25 08:23:57,039 INFO L119 LiptonReduction]: Number of co-enabled transitions 2345282 [2023-08-25 08:24:28,222 INFO L134 LiptonReduction]: Checked pairs total: 2553676 [2023-08-25 08:24:28,222 INFO L136 LiptonReduction]: Total number of compositions: 2017 [2023-08-25 08:24:28,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:24:28,241 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:24:28,241 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:24:28,326 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:24:28,326 INFO L124 PetriNetUnfolderBase]: 0/495 cut-off events. [2023-08-25 08:24:28,326 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-25 08:24:28,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:24:28,327 INFO L208 CegarLoopForPetriNet]: trace histogram [42, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:24:28,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:24:28,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:24:28,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1151311712, now seen corresponding path program 1 times [2023-08-25 08:24:28,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:24:28,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209305376] [2023-08-25 08:24:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:24:28,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:24:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:24:28,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:24:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:24:28,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:24:28,418 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:24:28,418 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:24:28,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-25 08:24:28,419 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:24:28,419 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:24:28,419 WARN L233 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:24:28,419 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2023-08-25 08:24:28,525 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:24:28,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1494 places, 1620 transitions, 5172 flow [2023-08-25 08:24:29,771 INFO L124 PetriNetUnfolderBase]: 253/2122 cut-off events. [2023-08-25 08:24:29,771 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-25 08:24:29,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3152 conditions, 2122 events. 253/2122 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8316 event pairs, 0 based on Foata normal form. 0/1616 useless extension candidates. Maximal degree in co-relation 3048. Up to 86 conditions per place. [2023-08-25 08:24:29,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 1494 places, 1620 transitions, 5172 flow [2023-08-25 08:24:29,938 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1494 places, 1620 transitions, 5172 flow [2023-08-25 08:24:29,938 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:24:29,938 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1494 places, 1620 transitions, 5172 flow [2023-08-25 08:24:29,938 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1494 places, 1620 transitions, 5172 flow [2023-08-25 08:24:29,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1494 places, 1620 transitions, 5172 flow [2023-08-25 08:24:31,205 INFO L124 PetriNetUnfolderBase]: 253/2122 cut-off events. [2023-08-25 08:24:31,205 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-25 08:24:31,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3152 conditions, 2122 events. 253/2122 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8316 event pairs, 0 based on Foata normal form. 0/1616 useless extension candidates. Maximal degree in co-relation 3048. Up to 86 conditions per place. [2023-08-25 08:24:31,829 INFO L119 LiptonReduction]: Number of co-enabled transitions 2461536 [2023-08-25 08:24:59,512 INFO L134 LiptonReduction]: Checked pairs total: 2725232 [2023-08-25 08:24:59,512 INFO L136 LiptonReduction]: Total number of compositions: 2050 [2023-08-25 08:24:59,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:24:59,513 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:24:59,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:24:59,610 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:24:59,610 INFO L124 PetriNetUnfolderBase]: 0/507 cut-off events. [2023-08-25 08:24:59,610 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-25 08:24:59,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:24:59,611 INFO L208 CegarLoopForPetriNet]: trace histogram [43, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:24:59,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:24:59,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:24:59,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1921998440, now seen corresponding path program 1 times [2023-08-25 08:24:59,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:24:59,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699942958] [2023-08-25 08:24:59,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:24:59,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:24:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:24:59,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:24:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:24:59,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:24:59,752 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:24:59,753 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:24:59,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-25 08:24:59,753 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:24:59,753 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:24:59,753 WARN L233 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:24:59,753 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2023-08-25 08:24:59,842 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:24:59,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1529 places, 1658 transitions, 5337 flow [2023-08-25 08:25:01,351 INFO L124 PetriNetUnfolderBase]: 259/2172 cut-off events. [2023-08-25 08:25:01,351 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-25 08:25:01,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3248 conditions, 2172 events. 259/2172 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8548 event pairs, 0 based on Foata normal form. 0/1654 useless extension candidates. Maximal degree in co-relation 3143. Up to 88 conditions per place. [2023-08-25 08:25:01,450 INFO L82 GeneralOperation]: Start removeDead. Operand has 1529 places, 1658 transitions, 5337 flow [2023-08-25 08:25:01,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1529 places, 1658 transitions, 5337 flow [2023-08-25 08:25:01,482 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:25:01,483 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1529 places, 1658 transitions, 5337 flow [2023-08-25 08:25:01,483 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1529 places, 1658 transitions, 5337 flow [2023-08-25 08:25:01,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1529 places, 1658 transitions, 5337 flow [2023-08-25 08:25:02,862 INFO L124 PetriNetUnfolderBase]: 259/2172 cut-off events. [2023-08-25 08:25:02,862 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-25 08:25:02,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3248 conditions, 2172 events. 259/2172 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8548 event pairs, 0 based on Foata normal form. 0/1654 useless extension candidates. Maximal degree in co-relation 3143. Up to 88 conditions per place. [2023-08-25 08:25:03,440 INFO L119 LiptonReduction]: Number of co-enabled transitions 2580602 [2023-08-25 08:25:31,171 INFO L134 LiptonReduction]: Checked pairs total: 2862430 [2023-08-25 08:25:31,172 INFO L136 LiptonReduction]: Total number of compositions: 2115 [2023-08-25 08:25:31,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:25:31,193 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:25:31,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:25:31,336 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:25:31,336 INFO L124 PetriNetUnfolderBase]: 0/519 cut-off events. [2023-08-25 08:25:31,336 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-25 08:25:31,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:25:31,336 INFO L208 CegarLoopForPetriNet]: trace histogram [44, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:25:31,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:25:31,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:25:31,337 INFO L85 PathProgramCache]: Analyzing trace with hash 281807052, now seen corresponding path program 1 times [2023-08-25 08:25:31,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:25:31,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260152001] [2023-08-25 08:25:31,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:25:31,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:25:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:25:31,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:25:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:25:31,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:25:31,512 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:25:31,512 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:25:31,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-25 08:25:31,512 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:25:31,513 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:25:31,513 WARN L233 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:25:31,513 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2023-08-25 08:25:31,603 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:25:31,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1564 places, 1696 transitions, 5504 flow [2023-08-25 08:25:33,142 INFO L124 PetriNetUnfolderBase]: 265/2222 cut-off events. [2023-08-25 08:25:33,142 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-25 08:25:33,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3345 conditions, 2222 events. 265/2222 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8709 event pairs, 0 based on Foata normal form. 0/1692 useless extension candidates. Maximal degree in co-relation 3239. Up to 90 conditions per place. [2023-08-25 08:25:33,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 1564 places, 1696 transitions, 5504 flow [2023-08-25 08:25:33,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1564 places, 1696 transitions, 5504 flow [2023-08-25 08:25:33,312 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:25:33,313 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1564 places, 1696 transitions, 5504 flow [2023-08-25 08:25:33,313 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1564 places, 1696 transitions, 5504 flow [2023-08-25 08:25:33,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1564 places, 1696 transitions, 5504 flow [2023-08-25 08:25:34,879 INFO L124 PetriNetUnfolderBase]: 265/2222 cut-off events. [2023-08-25 08:25:34,879 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-25 08:25:35,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3345 conditions, 2222 events. 265/2222 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8709 event pairs, 0 based on Foata normal form. 0/1692 useless extension candidates. Maximal degree in co-relation 3239. Up to 90 conditions per place. [2023-08-25 08:25:35,684 INFO L119 LiptonReduction]: Number of co-enabled transitions 2702480 [2023-08-25 08:26:06,942 INFO L134 LiptonReduction]: Checked pairs total: 2909810 [2023-08-25 08:26:06,942 INFO L136 LiptonReduction]: Total number of compositions: 2135 [2023-08-25 08:26:06,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:26:06,967 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:26:06,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:26:07,089 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:26:07,089 INFO L124 PetriNetUnfolderBase]: 0/531 cut-off events. [2023-08-25 08:26:07,089 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-25 08:26:07,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:26:07,090 INFO L208 CegarLoopForPetriNet]: trace histogram [45, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:26:07,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:26:07,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:26:07,090 INFO L85 PathProgramCache]: Analyzing trace with hash -168235040, now seen corresponding path program 1 times [2023-08-25 08:26:07,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:26:07,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399725458] [2023-08-25 08:26:07,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:26:07,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:26:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:26:07,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:26:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:26:07,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:26:07,197 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:26:07,198 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:26:07,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-25 08:26:07,198 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:26:07,198 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:26:07,198 WARN L233 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:26:07,198 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2023-08-25 08:26:07,295 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:26:07,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1599 places, 1734 transitions, 5673 flow [2023-08-25 08:26:09,281 INFO L124 PetriNetUnfolderBase]: 271/2272 cut-off events. [2023-08-25 08:26:09,282 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-25 08:26:09,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3443 conditions, 2272 events. 271/2272 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9025 event pairs, 0 based on Foata normal form. 0/1730 useless extension candidates. Maximal degree in co-relation 3336. Up to 92 conditions per place. [2023-08-25 08:26:09,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 1599 places, 1734 transitions, 5673 flow [2023-08-25 08:26:09,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1599 places, 1734 transitions, 5673 flow [2023-08-25 08:26:09,431 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:26:09,431 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1599 places, 1734 transitions, 5673 flow [2023-08-25 08:26:09,431 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1599 places, 1734 transitions, 5673 flow [2023-08-25 08:26:09,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1599 places, 1734 transitions, 5673 flow [2023-08-25 08:26:10,975 INFO L124 PetriNetUnfolderBase]: 271/2272 cut-off events. [2023-08-25 08:26:10,975 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-25 08:26:11,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3443 conditions, 2272 events. 271/2272 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9025 event pairs, 0 based on Foata normal form. 0/1730 useless extension candidates. Maximal degree in co-relation 3336. Up to 92 conditions per place. [2023-08-25 08:26:11,677 INFO L119 LiptonReduction]: Number of co-enabled transitions 2827170 [2023-08-25 08:26:42,640 INFO L134 LiptonReduction]: Checked pairs total: 3097271 [2023-08-25 08:26:42,640 INFO L136 LiptonReduction]: Total number of compositions: 2200 [2023-08-25 08:26:42,641 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:26:42,641 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:26:42,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:26:42,751 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:26:42,751 INFO L124 PetriNetUnfolderBase]: 0/543 cut-off events. [2023-08-25 08:26:42,751 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-25 08:26:42,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:26:42,751 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:26:42,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:26:42,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:26:42,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1560412653, now seen corresponding path program 1 times [2023-08-25 08:26:42,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:26:42,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370810951] [2023-08-25 08:26:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:26:42,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:26:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:26:42,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:26:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:26:42,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:26:42,863 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:26:42,863 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:26:42,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-25 08:26:42,863 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:26:42,864 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:26:42,864 WARN L233 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:26:42,864 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2023-08-25 08:26:42,964 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:26:42,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1634 places, 1772 transitions, 5844 flow [2023-08-25 08:26:44,801 INFO L124 PetriNetUnfolderBase]: 277/2322 cut-off events. [2023-08-25 08:26:44,801 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-25 08:26:45,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3542 conditions, 2322 events. 277/2322 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8917 event pairs, 0 based on Foata normal form. 0/1768 useless extension candidates. Maximal degree in co-relation 3434. Up to 94 conditions per place. [2023-08-25 08:26:45,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 1634 places, 1772 transitions, 5844 flow [2023-08-25 08:26:45,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1634 places, 1772 transitions, 5844 flow [2023-08-25 08:26:45,224 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:26:45,225 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1634 places, 1772 transitions, 5844 flow [2023-08-25 08:26:45,225 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1634 places, 1772 transitions, 5844 flow [2023-08-25 08:26:45,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1634 places, 1772 transitions, 5844 flow [2023-08-25 08:26:47,318 INFO L124 PetriNetUnfolderBase]: 277/2322 cut-off events. [2023-08-25 08:26:47,318 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-25 08:26:47,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3542 conditions, 2322 events. 277/2322 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8917 event pairs, 0 based on Foata normal form. 0/1768 useless extension candidates. Maximal degree in co-relation 3434. Up to 94 conditions per place. [2023-08-25 08:26:48,278 INFO L119 LiptonReduction]: Number of co-enabled transitions 2954672 [2023-08-25 08:27:20,144 INFO L134 LiptonReduction]: Checked pairs total: 3175854 [2023-08-25 08:27:20,144 INFO L136 LiptonReduction]: Total number of compositions: 2229 [2023-08-25 08:27:20,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:27:20,146 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;@3e77cd44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:27:20,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:27:20,271 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:27:20,271 INFO L124 PetriNetUnfolderBase]: 0/555 cut-off events. [2023-08-25 08:27:20,271 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-25 08:27:20,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:27:20,271 INFO L208 CegarLoopForPetriNet]: trace histogram [47, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:27:20,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:27:20,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:27:20,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1425320457, now seen corresponding path program 1 times [2023-08-25 08:27:20,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:27:20,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378681233] [2023-08-25 08:27:20,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:27:20,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:27:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:27:20,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:27:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:27:20,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:27:20,411 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:27:20,411 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:27:20,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-25 08:27:20,411 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:27:20,411 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:27:20,412 WARN L233 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:27:20,412 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2023-08-25 08:27:20,534 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:27:20,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1669 places, 1810 transitions, 6017 flow [2023-08-25 08:27:22,387 INFO L124 PetriNetUnfolderBase]: 283/2372 cut-off events. [2023-08-25 08:27:22,387 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-25 08:27:22,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3642 conditions, 2372 events. 283/2372 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9222 event pairs, 0 based on Foata normal form. 0/1806 useless extension candidates. Maximal degree in co-relation 3533. Up to 96 conditions per place. [2023-08-25 08:27:22,537 INFO L82 GeneralOperation]: Start removeDead. Operand has 1669 places, 1810 transitions, 6017 flow [2023-08-25 08:27:22,595 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1669 places, 1810 transitions, 6017 flow [2023-08-25 08:27:22,596 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:27:22,596 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1669 places, 1810 transitions, 6017 flow [2023-08-25 08:27:22,596 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1669 places, 1810 transitions, 6017 flow [2023-08-25 08:27:22,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1669 places, 1810 transitions, 6017 flow [2023-08-25 08:27:24,516 INFO L124 PetriNetUnfolderBase]: 283/2372 cut-off events. [2023-08-25 08:27:24,516 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-25 08:27:24,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3642 conditions, 2372 events. 283/2372 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9222 event pairs, 0 based on Foata normal form. 0/1806 useless extension candidates. Maximal degree in co-relation 3533. Up to 96 conditions per place. [2023-08-25 08:27:25,438 INFO L119 LiptonReduction]: Number of co-enabled transitions 3084986 Received shutdown request... [2023-08-25 08:27:59,381 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 [2023-08-25 08:27:59,515 WARN L266 SmtUtils]: Removed 3 from assertion stack [2023-08-25 08:27:59,516 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-08-25 08:27:59,517 INFO L158 Benchmark]: Toolchain (without parser) took 822712.76ms. Allocated memory was 354.4MB in the beginning and 5.3GB in the end (delta: 4.9GB). Free memory was 329.7MB in the beginning and 941.4MB in the end (delta: -611.8MB). Peak memory consumption was 4.5GB. Max. memory is 16.0GB. [2023-08-25 08:27:59,517 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory was 330.8MB in the beginning and 330.7MB in the end (delta: 93.6kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 08:27:59,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.48ms. Allocated memory is still 354.4MB. Free memory was 329.3MB in the beginning and 310.1MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 08:27:59,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.00ms. Allocated memory is still 354.4MB. Free memory was 310.1MB in the beginning and 308.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 08:27:59,517 INFO L158 Benchmark]: Boogie Preprocessor took 27.63ms. Allocated memory is still 354.4MB. Free memory was 308.0MB in the beginning and 306.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 08:27:59,517 INFO L158 Benchmark]: RCFGBuilder took 455.24ms. Allocated memory is still 354.4MB. Free memory was 306.6MB in the beginning and 290.2MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 08:27:59,518 INFO L158 Benchmark]: TraceAbstraction took 821814.13ms. Allocated memory was 354.4MB in the beginning and 5.3GB in the end (delta: 4.9GB). Free memory was 289.5MB in the beginning and 941.4MB in the end (delta: -652.0MB). Peak memory consumption was 4.5GB. Max. memory is 16.0GB. [2023-08-25 08:27:59,518 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory was 330.8MB in the beginning and 330.7MB in the end (delta: 93.6kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 366.48ms. Allocated memory is still 354.4MB. Free memory was 329.3MB in the beginning and 310.1MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.00ms. Allocated memory is still 354.4MB. Free memory was 310.1MB in the beginning and 308.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.63ms. Allocated memory is still 354.4MB. Free memory was 308.0MB in the beginning and 306.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 455.24ms. Allocated memory is still 354.4MB. Free memory was 306.6MB in the beginning and 290.2MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 821814.13ms. Allocated memory was 354.4MB in the beginning and 5.3GB in the end (delta: 4.9GB). Free memory was 289.5MB in the beginning and 941.4MB in the end (delta: -652.0MB). Peak memory consumption was 4.5GB. 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: 1.6s, 59 PlacesBefore, 15 PlacesAfterwards, 62 TransitionsBefore, 12 TransitionsAfterwards, 962 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 6 ChoiceCompositions, 69 TotalNumberOfCompositions, 876 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 876, independent: 876, independent conditional: 0, independent unconditional: 876, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 481, independent: 481, independent conditional: 0, independent unconditional: 481, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 876, independent: 395, independent conditional: 0, independent unconditional: 395, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 481, unknown conditional: 0, unknown unconditional: 481] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 94 PlacesBefore, 27 PlacesAfterwards, 100 TransitionsBefore, 22 TransitionsAfterwards, 4736 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 84 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 11 ChoiceCompositions, 113 TotalNumberOfCompositions, 4596 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4247, independent: 4219, independent conditional: 0, independent unconditional: 4219, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2338, independent: 2323, independent conditional: 0, independent unconditional: 2323, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4247, independent: 1896, independent conditional: 0, independent unconditional: 1896, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 2338, unknown conditional: 0, unknown unconditional: 2338] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 129 PlacesBefore, 37 PlacesAfterwards, 138 TransitionsBefore, 30 TransitionsAfterwards, 11322 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 137 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 16 ChoiceCompositions, 170 TotalNumberOfCompositions, 12424 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10860, independent: 10806, independent conditional: 0, independent unconditional: 10806, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5736, independent: 5713, independent conditional: 0, independent unconditional: 5713, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10860, independent: 5093, independent conditional: 0, independent unconditional: 5093, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 5736, unknown conditional: 0, unknown unconditional: 5736] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 164 PlacesBefore, 47 PlacesAfterwards, 176 TransitionsBefore, 38 TransitionsAfterwards, 20720 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 168 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 21 ChoiceCompositions, 211 TotalNumberOfCompositions, 21519 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19003, independent: 18932, independent conditional: 0, independent unconditional: 18932, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10048, independent: 10013, independent conditional: 0, independent unconditional: 10013, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 19003, independent: 8919, independent conditional: 0, independent unconditional: 8919, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 10048, unknown conditional: 0, unknown unconditional: 10048] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 94, Positive conditional cache size: 0, Positive unconditional cache size: 94, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 199 PlacesBefore, 57 PlacesAfterwards, 214 TransitionsBefore, 46 TransitionsAfterwards, 32930 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 223 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 26 ChoiceCompositions, 273 TotalNumberOfCompositions, 35584 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31332, independent: 31254, independent conditional: 0, independent unconditional: 31254, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 16100, independent: 16061, independent conditional: 0, independent unconditional: 16061, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 31332, independent: 15193, independent conditional: 0, independent unconditional: 15193, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 16100, unknown conditional: 0, unknown unconditional: 16100] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 234 PlacesBefore, 67 PlacesAfterwards, 252 TransitionsBefore, 54 TransitionsAfterwards, 47952 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 242 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 31 ChoiceCompositions, 303 TotalNumberOfCompositions, 50112 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42990, independent: 42871, independent conditional: 0, independent unconditional: 42871, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 23485, independent: 23438, independent conditional: 0, independent unconditional: 23438, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 42990, independent: 19433, independent conditional: 0, independent unconditional: 19433, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 23485, unknown conditional: 0, unknown unconditional: 23485] , Statistics on independence cache: Total cache size (in pairs): 188, Positive cache size: 171, Positive conditional cache size: 0, Positive unconditional cache size: 171, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 269 PlacesBefore, 77 PlacesAfterwards, 290 TransitionsBefore, 62 TransitionsAfterwards, 65786 CoEnabledTransitionPairs, 9 FixpointIterations, 10 TrivialSequentialCompositions, 302 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 36 ChoiceCompositions, 366 TotalNumberOfCompositions, 73134 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62114, independent: 61955, independent conditional: 0, independent unconditional: 61955, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 32307, independent: 32253, independent conditional: 0, independent unconditional: 32253, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 62114, independent: 29702, independent conditional: 0, independent unconditional: 29702, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 32307, unknown conditional: 0, unknown unconditional: 32307] , Statistics on independence cache: Total cache size (in pairs): 301, Positive cache size: 280, Positive conditional cache size: 0, Positive unconditional cache size: 280, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6s, 304 PlacesBefore, 87 PlacesAfterwards, 328 TransitionsBefore, 70 TransitionsAfterwards, 86432 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 334 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 41 ChoiceCompositions, 409 TotalNumberOfCompositions, 93403 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80035, independent: 79868, independent conditional: 0, independent unconditional: 79868, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41850, independent: 41796, independent conditional: 0, independent unconditional: 41796, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 80035, independent: 38072, independent conditional: 0, independent unconditional: 38072, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 41850, unknown conditional: 0, unknown unconditional: 41850] , Statistics on independence cache: Total cache size (in pairs): 329, Positive cache size: 306, Positive conditional cache size: 0, Positive unconditional cache size: 306, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8s, 339 PlacesBefore, 97 PlacesAfterwards, 366 TransitionsBefore, 78 TransitionsAfterwards, 109890 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 388 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 46 ChoiceCompositions, 469 TotalNumberOfCompositions, 122590 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 103775, independent: 103592, independent conditional: 0, independent unconditional: 103592, dependent: 183, dependent conditional: 0, dependent unconditional: 183, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 53994, independent: 53927, independent conditional: 0, independent unconditional: 53927, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 103775, independent: 49665, independent conditional: 0, independent unconditional: 49665, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 53994, unknown conditional: 0, unknown unconditional: 53994] , Statistics on independence cache: Total cache size (in pairs): 353, Positive cache size: 327, Positive conditional cache size: 0, Positive unconditional cache size: 327, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 374 PlacesBefore, 107 PlacesAfterwards, 404 TransitionsBefore, 86 TransitionsAfterwards, 136160 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 410 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 33 ConcurrentYvCompositions, 51 ChoiceCompositions, 504 TotalNumberOfCompositions, 147102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 125484, independent: 125282, independent conditional: 0, independent unconditional: 125282, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 66500, independent: 66424, independent conditional: 0, independent unconditional: 66424, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 125484, independent: 58858, independent conditional: 0, independent unconditional: 58858, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 66500, unknown conditional: 0, unknown unconditional: 66500] , Statistics on independence cache: Total cache size (in pairs): 462, Positive cache size: 433, Positive conditional cache size: 0, Positive unconditional cache size: 433, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7s, 409 PlacesBefore, 117 PlacesAfterwards, 442 TransitionsBefore, 94 TransitionsAfterwards, 165242 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 448 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 27 ConcurrentYvCompositions, 56 ChoiceCompositions, 541 TotalNumberOfCompositions, 173638 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 148790, independent: 148565, independent conditional: 0, independent unconditional: 148565, dependent: 225, dependent conditional: 0, dependent unconditional: 225, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 78170, independent: 78089, independent conditional: 0, independent unconditional: 78089, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 148790, independent: 70476, independent conditional: 0, independent unconditional: 70476, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 78170, unknown conditional: 0, unknown unconditional: 78170] , Statistics on independence cache: Total cache size (in pairs): 543, Positive cache size: 510, Positive conditional cache size: 0, Positive unconditional cache size: 510, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6s, 444 PlacesBefore, 127 PlacesAfterwards, 480 TransitionsBefore, 102 TransitionsAfterwards, 197136 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 485 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 39 ConcurrentYvCompositions, 61 ChoiceCompositions, 595 TotalNumberOfCompositions, 212906 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 181013, independent: 180771, independent conditional: 0, independent unconditional: 180771, dependent: 242, dependent conditional: 0, dependent unconditional: 242, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 98505, independent: 98415, independent conditional: 0, independent unconditional: 98415, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 181013, independent: 82356, independent conditional: 0, independent unconditional: 82356, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 98505, unknown conditional: 0, unknown unconditional: 98505] , Statistics on independence cache: Total cache size (in pairs): 660, Positive cache size: 625, Positive conditional cache size: 0, Positive unconditional cache size: 625, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5s, 479 PlacesBefore, 137 PlacesAfterwards, 518 TransitionsBefore, 110 TransitionsAfterwards, 231842 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 548 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 40 ConcurrentYvCompositions, 66 ChoiceCompositions, 664 TotalNumberOfCompositions, 250635 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 214913, independent: 214651, independent conditional: 0, independent unconditional: 214651, dependent: 262, dependent conditional: 0, dependent unconditional: 262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 111883, independent: 111795, independent conditional: 0, independent unconditional: 111795, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 214913, independent: 102856, independent conditional: 0, independent unconditional: 102856, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 111883, unknown conditional: 0, unknown unconditional: 111883] , Statistics on independence cache: Total cache size (in pairs): 717, Positive cache size: 679, Positive conditional cache size: 0, Positive unconditional cache size: 679, 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: 8.1s, 514 PlacesBefore, 147 PlacesAfterwards, 556 TransitionsBefore, 118 TransitionsAfterwards, 269360 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 569 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 42 ConcurrentYvCompositions, 71 ChoiceCompositions, 692 TotalNumberOfCompositions, 285917 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 246913, independent: 246635, independent conditional: 0, independent unconditional: 246635, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 130345, independent: 130249, independent conditional: 0, independent unconditional: 130249, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 246913, independent: 116386, independent conditional: 0, independent unconditional: 116386, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 130345, unknown conditional: 0, unknown unconditional: 130345] , Statistics on independence cache: Total cache size (in pairs): 1004, Positive cache size: 963, Positive conditional cache size: 0, Positive unconditional cache size: 963, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5s, 549 PlacesBefore, 157 PlacesAfterwards, 594 TransitionsBefore, 126 TransitionsAfterwards, 309690 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 626 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 40 ConcurrentYvCompositions, 76 ChoiceCompositions, 752 TotalNumberOfCompositions, 324741 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 284514, independent: 284266, independent conditional: 0, independent unconditional: 284266, dependent: 248, dependent conditional: 0, dependent unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 149772, independent: 149651, independent conditional: 0, independent unconditional: 149651, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 284514, independent: 134615, independent conditional: 0, independent unconditional: 134615, dependent: 127, dependent conditional: 0, dependent unconditional: 127, unknown: 149772, unknown conditional: 0, unknown unconditional: 149772] , Statistics on independence cache: Total cache size (in pairs): 1035, Positive cache size: 969, Positive conditional cache size: 0, Positive unconditional cache size: 969, Negative cache size: 66, Negative conditional cache size: 0, Negative unconditional cache size: 66, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.4s, 584 PlacesBefore, 167 PlacesAfterwards, 632 TransitionsBefore, 134 TransitionsAfterwards, 352832 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 656 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 45 ConcurrentYvCompositions, 81 ChoiceCompositions, 792 TotalNumberOfCompositions, 377823 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 317607, independent: 317277, independent conditional: 0, independent unconditional: 317277, dependent: 330, dependent conditional: 0, dependent unconditional: 330, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 171252, independent: 171135, independent conditional: 0, independent unconditional: 171135, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 317607, independent: 146142, independent conditional: 0, independent unconditional: 146142, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 171252, unknown conditional: 0, unknown unconditional: 171252] , Statistics on independence cache: Total cache size (in pairs): 1014, Positive cache size: 967, Positive conditional cache size: 0, Positive unconditional cache size: 967, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.8s, 619 PlacesBefore, 177 PlacesAfterwards, 670 TransitionsBefore, 142 TransitionsAfterwards, 398786 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 719 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 45 ConcurrentYvCompositions, 86 ChoiceCompositions, 860 TotalNumberOfCompositions, 435601 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 370575, independent: 370243, independent conditional: 0, independent unconditional: 370243, dependent: 332, dependent conditional: 0, dependent unconditional: 332, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 194710, independent: 194582, independent conditional: 0, independent unconditional: 194582, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 370575, independent: 175661, independent conditional: 0, independent unconditional: 175661, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 194710, unknown conditional: 0, unknown unconditional: 194710] , Statistics on independence cache: Total cache size (in pairs): 1121, Positive cache size: 1071, Positive conditional cache size: 0, Positive unconditional cache size: 1071, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.0s, 654 PlacesBefore, 187 PlacesAfterwards, 708 TransitionsBefore, 150 TransitionsAfterwards, 447552 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 740 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 52 ConcurrentYvCompositions, 91 ChoiceCompositions, 893 TotalNumberOfCompositions, 491559 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 411863, independent: 411470, independent conditional: 0, independent unconditional: 411470, dependent: 393, dependent conditional: 0, dependent unconditional: 393, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 219724, independent: 219554, independent conditional: 0, independent unconditional: 219554, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 411863, independent: 191916, independent conditional: 0, independent unconditional: 191916, dependent: 223, dependent conditional: 0, dependent unconditional: 223, unknown: 219724, unknown conditional: 0, unknown unconditional: 219724] , Statistics on independence cache: Total cache size (in pairs): 1379, Positive cache size: 1322, Positive conditional cache size: 0, Positive unconditional cache size: 1322, Negative cache size: 57, Negative conditional cache size: 0, Negative unconditional cache size: 57, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4s, 689 PlacesBefore, 197 PlacesAfterwards, 746 TransitionsBefore, 158 TransitionsAfterwards, 499130 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 768 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 58 ConcurrentYvCompositions, 96 ChoiceCompositions, 932 TotalNumberOfCompositions, 521744 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 452773, independent: 452455, independent conditional: 0, independent unconditional: 452455, dependent: 318, dependent conditional: 0, dependent unconditional: 318, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 243723, independent: 243589, independent conditional: 0, independent unconditional: 243589, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 452773, independent: 208866, independent conditional: 0, independent unconditional: 208866, dependent: 184, dependent conditional: 0, dependent unconditional: 184, unknown: 243723, unknown conditional: 0, unknown unconditional: 243723] , Statistics on independence cache: Total cache size (in pairs): 1637, Positive cache size: 1581, Positive conditional cache size: 0, Positive unconditional cache size: 1581, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.5s, 724 PlacesBefore, 207 PlacesAfterwards, 784 TransitionsBefore, 166 TransitionsAfterwards, 553520 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 813 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 62 ConcurrentYvCompositions, 101 ChoiceCompositions, 986 TotalNumberOfCompositions, 594874 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 505142, independent: 504740, independent conditional: 0, independent unconditional: 504740, dependent: 402, dependent conditional: 0, dependent unconditional: 402, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 272279, independent: 272110, independent conditional: 0, independent unconditional: 272110, dependent: 169, dependent conditional: 0, dependent unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 505142, independent: 232630, independent conditional: 0, independent unconditional: 232630, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 272279, unknown conditional: 0, unknown unconditional: 272279] , Statistics on independence cache: Total cache size (in pairs): 1696, Positive cache size: 1616, Positive conditional cache size: 0, Positive unconditional cache size: 1616, Negative cache size: 80, Negative conditional cache size: 0, Negative unconditional cache size: 80, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.5s, 759 PlacesBefore, 217 PlacesAfterwards, 822 TransitionsBefore, 174 TransitionsAfterwards, 610722 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 878 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 55 ConcurrentYvCompositions, 106 ChoiceCompositions, 1049 TotalNumberOfCompositions, 660911 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 563490, independent: 563067, independent conditional: 0, independent unconditional: 563067, dependent: 423, dependent conditional: 0, dependent unconditional: 423, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 295243, independent: 295087, independent conditional: 0, independent unconditional: 295087, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 563490, independent: 267980, independent conditional: 0, independent unconditional: 267980, dependent: 267, dependent conditional: 0, dependent unconditional: 267, unknown: 295243, unknown conditional: 0, unknown unconditional: 295243] , Statistics on independence cache: Total cache size (in pairs): 1991, Positive cache size: 1929, Positive conditional cache size: 0, Positive unconditional cache size: 1929, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.3s, 794 PlacesBefore, 227 PlacesAfterwards, 860 TransitionsBefore, 182 TransitionsAfterwards, 670736 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 899 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 70 ConcurrentYvCompositions, 111 ChoiceCompositions, 1090 TotalNumberOfCompositions, 726952 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 613325, independent: 612859, independent conditional: 0, independent unconditional: 612859, dependent: 466, dependent conditional: 0, dependent unconditional: 466, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 329036, independent: 328834, independent conditional: 0, independent unconditional: 328834, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 613325, independent: 284025, independent conditional: 0, independent unconditional: 284025, dependent: 264, dependent conditional: 0, dependent unconditional: 264, unknown: 329036, unknown conditional: 0, unknown unconditional: 329036] , Statistics on independence cache: Total cache size (in pairs): 2049, Positive cache size: 1980, Positive conditional cache size: 0, Positive unconditional cache size: 1980, Negative cache size: 69, Negative conditional cache size: 0, Negative unconditional cache size: 69, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.4s, 829 PlacesBefore, 237 PlacesAfterwards, 898 TransitionsBefore, 190 TransitionsAfterwards, 733562 CoEnabledTransitionPairs, 9 FixpointIterations, 10 TrivialSequentialCompositions, 974 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 57 ConcurrentYvCompositions, 116 ChoiceCompositions, 1157 TotalNumberOfCompositions, 806224 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 680327, independent: 679791, independent conditional: 0, independent unconditional: 679791, dependent: 536, dependent conditional: 0, dependent unconditional: 536, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 352482, independent: 352317, independent conditional: 0, independent unconditional: 352317, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 680327, independent: 327474, independent conditional: 0, independent unconditional: 327474, dependent: 371, dependent conditional: 0, dependent unconditional: 371, unknown: 352482, unknown conditional: 0, unknown unconditional: 352482] , Statistics on independence cache: Total cache size (in pairs): 2138, Positive cache size: 2070, Positive conditional cache size: 0, Positive unconditional cache size: 2070, Negative cache size: 68, Negative conditional cache size: 0, Negative unconditional cache size: 68, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1s, 864 PlacesBefore, 247 PlacesAfterwards, 936 TransitionsBefore, 198 TransitionsAfterwards, 799200 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1001 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 61 ConcurrentYvCompositions, 121 ChoiceCompositions, 1193 TotalNumberOfCompositions, 865005 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 735621, independent: 735129, independent conditional: 0, independent unconditional: 735129, dependent: 492, dependent conditional: 0, dependent unconditional: 492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 384571, independent: 384387, independent conditional: 0, independent unconditional: 384387, dependent: 184, dependent conditional: 0, dependent unconditional: 184, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 735621, independent: 350742, independent conditional: 0, independent unconditional: 350742, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 384571, unknown conditional: 0, unknown unconditional: 384571] , Statistics on independence cache: Total cache size (in pairs): 2563, Positive cache size: 2492, Positive conditional cache size: 0, Positive unconditional cache size: 2492, Negative cache size: 71, Negative conditional cache size: 0, Negative unconditional cache size: 71, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.3s, 899 PlacesBefore, 257 PlacesAfterwards, 974 TransitionsBefore, 206 TransitionsAfterwards, 867650 CoEnabledTransitionPairs, 9 FixpointIterations, 10 TrivialSequentialCompositions, 1059 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 62 ConcurrentYvCompositions, 126 ChoiceCompositions, 1257 TotalNumberOfCompositions, 972190 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 811986, independent: 811402, independent conditional: 0, independent unconditional: 811402, dependent: 584, dependent conditional: 0, dependent unconditional: 584, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 422572, independent: 422343, independent conditional: 0, independent unconditional: 422343, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 811986, independent: 389059, independent conditional: 0, independent unconditional: 389059, dependent: 355, dependent conditional: 0, dependent unconditional: 355, unknown: 422572, unknown conditional: 0, unknown unconditional: 422572] , Statistics on independence cache: Total cache size (in pairs): 2541, Positive cache size: 2467, Positive conditional cache size: 0, Positive unconditional cache size: 2467, Negative cache size: 74, Negative conditional cache size: 0, Negative unconditional cache size: 74, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.7s, 934 PlacesBefore, 267 PlacesAfterwards, 1012 TransitionsBefore, 214 TransitionsAfterwards, 938912 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1090 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 71 ConcurrentYvCompositions, 131 ChoiceCompositions, 1302 TotalNumberOfCompositions, 1020801 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 869277, independent: 868747, independent conditional: 0, independent unconditional: 868747, dependent: 530, dependent conditional: 0, dependent unconditional: 530, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 453628, independent: 453450, independent conditional: 0, independent unconditional: 453450, dependent: 178, dependent conditional: 0, dependent unconditional: 178, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 869277, independent: 415297, independent conditional: 0, independent unconditional: 415297, dependent: 352, dependent conditional: 0, dependent unconditional: 352, unknown: 453628, unknown conditional: 0, unknown unconditional: 453628] , Statistics on independence cache: Total cache size (in pairs): 2694, Positive cache size: 2617, Positive conditional cache size: 0, Positive unconditional cache size: 2617, Negative cache size: 77, Negative conditional cache size: 0, Negative unconditional cache size: 77, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.2s, 969 PlacesBefore, 277 PlacesAfterwards, 1050 TransitionsBefore, 222 TransitionsAfterwards, 1012986 CoEnabledTransitionPairs, 9 FixpointIterations, 10 TrivialSequentialCompositions, 1152 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 67 ConcurrentYvCompositions, 136 ChoiceCompositions, 1365 TotalNumberOfCompositions, 1155854 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 960944, independent: 960269, independent conditional: 0, independent unconditional: 960269, dependent: 675, dependent conditional: 0, dependent unconditional: 675, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 493469, independent: 493251, independent conditional: 0, independent unconditional: 493251, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 960944, independent: 467018, independent conditional: 0, independent unconditional: 467018, dependent: 457, dependent conditional: 0, dependent unconditional: 457, unknown: 493469, unknown conditional: 0, unknown unconditional: 493469] , Statistics on independence cache: Total cache size (in pairs): 3377, Positive cache size: 3297, Positive conditional cache size: 0, Positive unconditional cache size: 3297, Negative cache size: 80, Negative conditional cache size: 0, Negative unconditional cache size: 80, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.0s, 1004 PlacesBefore, 287 PlacesAfterwards, 1088 TransitionsBefore, 230 TransitionsAfterwards, 1089872 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1150 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 81 ConcurrentYvCompositions, 141 ChoiceCompositions, 1382 TotalNumberOfCompositions, 1170254 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1001832, independent: 1001273, independent conditional: 0, independent unconditional: 1001273, dependent: 559, dependent conditional: 0, dependent unconditional: 559, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 531490, independent: 531303, independent conditional: 0, independent unconditional: 531303, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1001832, independent: 469970, independent conditional: 0, independent unconditional: 469970, dependent: 372, dependent conditional: 0, dependent unconditional: 372, unknown: 531490, unknown conditional: 0, unknown unconditional: 531490] , Statistics on independence cache: Total cache size (in pairs): 2925, Positive cache size: 2842, Positive conditional cache size: 0, Positive unconditional cache size: 2842, Negative cache size: 83, Negative conditional cache size: 0, Negative unconditional cache size: 83, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.8s, 1039 PlacesBefore, 297 PlacesAfterwards, 1126 TransitionsBefore, 238 TransitionsAfterwards, 1169570 CoEnabledTransitionPairs, 9 FixpointIterations, 10 TrivialSequentialCompositions, 1186 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 74 ConcurrentYvCompositions, 146 ChoiceCompositions, 1416 TotalNumberOfCompositions, 1297651 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1081365, independent: 1080657, independent conditional: 0, independent unconditional: 1080657, dependent: 708, dependent conditional: 0, dependent unconditional: 708, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 569771, independent: 569549, independent conditional: 0, independent unconditional: 569549, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1081365, independent: 511108, independent conditional: 0, independent unconditional: 511108, dependent: 486, dependent conditional: 0, dependent unconditional: 486, unknown: 569771, unknown conditional: 0, unknown unconditional: 569771] , Statistics on independence cache: Total cache size (in pairs): 3666, Positive cache size: 3580, Positive conditional cache size: 0, Positive unconditional cache size: 3580, Negative cache size: 86, Negative conditional cache size: 0, Negative unconditional cache size: 86, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.0s, 1074 PlacesBefore, 307 PlacesAfterwards, 1164 TransitionsBefore, 246 TransitionsAfterwards, 1252080 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1242 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 84 ConcurrentYvCompositions, 151 ChoiceCompositions, 1487 TotalNumberOfCompositions, 1357961 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1148347, independent: 1147722, independent conditional: 0, independent unconditional: 1147722, dependent: 625, dependent conditional: 0, dependent unconditional: 625, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 609111, independent: 608897, independent conditional: 0, independent unconditional: 608897, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1148347, independent: 538825, independent conditional: 0, independent unconditional: 538825, dependent: 411, dependent conditional: 0, dependent unconditional: 411, unknown: 609111, unknown conditional: 0, unknown unconditional: 609111] , Statistics on independence cache: Total cache size (in pairs): 3543, Positive cache size: 3454, Positive conditional cache size: 0, Positive unconditional cache size: 3454, Negative cache size: 89, Negative conditional cache size: 0, Negative unconditional cache size: 89, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.5s, 1109 PlacesBefore, 317 PlacesAfterwards, 1202 TransitionsBefore, 254 TransitionsAfterwards, 1337402 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1273 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 89 ConcurrentYvCompositions, 156 ChoiceCompositions, 1528 TotalNumberOfCompositions, 1451788 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1227849, independent: 1227219, independent conditional: 0, independent unconditional: 1227219, dependent: 630, dependent conditional: 0, dependent unconditional: 630, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 657570, independent: 657349, independent conditional: 0, independent unconditional: 657349, dependent: 221, dependent conditional: 0, dependent unconditional: 221, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1227849, independent: 569870, independent conditional: 0, independent unconditional: 569870, dependent: 409, dependent conditional: 0, dependent unconditional: 409, unknown: 657570, unknown conditional: 0, unknown unconditional: 657570] , Statistics on independence cache: Total cache size (in pairs): 3599, Positive cache size: 3507, Positive conditional cache size: 0, Positive unconditional cache size: 3507, Negative cache size: 92, Negative conditional cache size: 0, Negative unconditional cache size: 92, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.3s, 1144 PlacesBefore, 327 PlacesAfterwards, 1240 TransitionsBefore, 262 TransitionsAfterwards, 1425536 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1307 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 86 ConcurrentYvCompositions, 161 ChoiceCompositions, 1564 TotalNumberOfCompositions, 1550485 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1304724, independent: 1304057, independent conditional: 0, independent unconditional: 1304057, dependent: 667, dependent conditional: 0, dependent unconditional: 667, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 694664, independent: 694409, independent conditional: 0, independent unconditional: 694409, dependent: 255, dependent conditional: 0, dependent unconditional: 255, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1304724, independent: 609648, independent conditional: 0, independent unconditional: 609648, dependent: 412, dependent conditional: 0, dependent unconditional: 412, unknown: 694664, unknown conditional: 0, unknown unconditional: 694664] , Statistics on independence cache: Total cache size (in pairs): 4381, Positive cache size: 4286, Positive conditional cache size: 0, Positive unconditional cache size: 4286, Negative cache size: 95, Negative conditional cache size: 0, Negative unconditional cache size: 95, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.1s, 1179 PlacesBefore, 337 PlacesAfterwards, 1278 TransitionsBefore, 270 TransitionsAfterwards, 1516482 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1391 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 81 ConcurrentYvCompositions, 166 ChoiceCompositions, 1648 TotalNumberOfCompositions, 1652893 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1411401, independent: 1410743, independent conditional: 0, independent unconditional: 1410743, dependent: 658, dependent conditional: 0, dependent unconditional: 658, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 733193, independent: 732949, independent conditional: 0, independent unconditional: 732949, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1411401, independent: 677794, independent conditional: 0, independent unconditional: 677794, dependent: 414, dependent conditional: 0, dependent unconditional: 414, unknown: 733193, unknown conditional: 0, unknown unconditional: 733193] , Statistics on independence cache: Total cache size (in pairs): 4558, Positive cache size: 4460, Positive conditional cache size: 0, Positive unconditional cache size: 4460, Negative cache size: 98, Negative conditional cache size: 0, Negative unconditional cache size: 98, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.1s, 1214 PlacesBefore, 347 PlacesAfterwards, 1316 TransitionsBefore, 278 TransitionsAfterwards, 1610240 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1436 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 84 ConcurrentYvCompositions, 171 ChoiceCompositions, 1701 TotalNumberOfCompositions, 1761443 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1500178, independent: 1499496, independent conditional: 0, independent unconditional: 1499496, dependent: 682, dependent conditional: 0, dependent unconditional: 682, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 779221, independent: 778967, independent conditional: 0, independent unconditional: 778967, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1500178, independent: 720529, independent conditional: 0, independent unconditional: 720529, dependent: 428, dependent conditional: 0, dependent unconditional: 428, unknown: 779221, unknown conditional: 0, unknown unconditional: 779221] , Statistics on independence cache: Total cache size (in pairs): 4542, Positive cache size: 4441, Positive conditional cache size: 0, Positive unconditional cache size: 4441, Negative cache size: 101, Negative conditional cache size: 0, Negative unconditional cache size: 101, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.0s, 1249 PlacesBefore, 357 PlacesAfterwards, 1354 TransitionsBefore, 286 TransitionsAfterwards, 1706810 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1446 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 94 ConcurrentYvCompositions, 176 ChoiceCompositions, 1726 TotalNumberOfCompositions, 1865120 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1581467, independent: 1580742, independent conditional: 0, independent unconditional: 1580742, dependent: 725, dependent conditional: 0, dependent unconditional: 725, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 832444, independent: 832182, independent conditional: 0, independent unconditional: 832182, dependent: 262, dependent conditional: 0, dependent unconditional: 262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1581467, independent: 748560, independent conditional: 0, independent unconditional: 748560, dependent: 463, dependent conditional: 0, dependent unconditional: 463, unknown: 832444, unknown conditional: 0, unknown unconditional: 832444] , Statistics on independence cache: Total cache size (in pairs): 5999, Positive cache size: 5894, Positive conditional cache size: 0, Positive unconditional cache size: 5894, Negative cache size: 105, Negative conditional cache size: 0, Negative unconditional cache size: 105, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.7s, 1284 PlacesBefore, 367 PlacesAfterwards, 1392 TransitionsBefore, 294 TransitionsAfterwards, 1806192 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1450 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 109 ConcurrentYvCompositions, 181 ChoiceCompositions, 1750 TotalNumberOfCompositions, 1934665 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1640357, independent: 1639618, independent conditional: 0, independent unconditional: 1639618, dependent: 739, dependent conditional: 0, dependent unconditional: 739, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 879784, independent: 879514, independent conditional: 0, independent unconditional: 879514, dependent: 270, dependent conditional: 0, dependent unconditional: 270, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1640357, independent: 760104, independent conditional: 0, independent unconditional: 760104, dependent: 469, dependent conditional: 0, dependent unconditional: 469, unknown: 879784, unknown conditional: 0, unknown unconditional: 879784] , Statistics on independence cache: Total cache size (in pairs): 5470, Positive cache size: 5363, Positive conditional cache size: 0, Positive unconditional cache size: 5363, Negative cache size: 107, Negative conditional cache size: 0, Negative unconditional cache size: 107, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.4s, 1319 PlacesBefore, 377 PlacesAfterwards, 1430 TransitionsBefore, 302 TransitionsAfterwards, 1908386 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1518 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 103 ConcurrentYvCompositions, 186 ChoiceCompositions, 1817 TotalNumberOfCompositions, 2051161 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1753724, independent: 1752990, independent conditional: 0, independent unconditional: 1752990, dependent: 734, dependent conditional: 0, dependent unconditional: 734, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 939637, independent: 939383, independent conditional: 0, independent unconditional: 939383, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1753724, independent: 813607, independent conditional: 0, independent unconditional: 813607, dependent: 480, dependent conditional: 0, dependent unconditional: 480, unknown: 939637, unknown conditional: 0, unknown unconditional: 939637] , Statistics on independence cache: Total cache size (in pairs): 5825, Positive cache size: 5715, Positive conditional cache size: 0, Positive unconditional cache size: 5715, Negative cache size: 110, Negative conditional cache size: 0, Negative unconditional cache size: 110, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.0s, 1354 PlacesBefore, 387 PlacesAfterwards, 1468 TransitionsBefore, 310 TransitionsAfterwards, 2013392 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1559 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 107 ConcurrentYvCompositions, 191 ChoiceCompositions, 1867 TotalNumberOfCompositions, 2187928 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1849560, independent: 1848778, independent conditional: 0, independent unconditional: 1848778, dependent: 782, dependent conditional: 0, dependent unconditional: 782, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 984084, independent: 983812, independent conditional: 0, independent unconditional: 983812, dependent: 272, dependent conditional: 0, dependent unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1849560, independent: 864966, independent conditional: 0, independent unconditional: 864966, dependent: 510, dependent conditional: 0, dependent unconditional: 510, unknown: 984084, unknown conditional: 0, unknown unconditional: 984084] , Statistics on independence cache: Total cache size (in pairs): 5405, Positive cache size: 5292, Positive conditional cache size: 0, Positive unconditional cache size: 5292, 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: 26.0s, 1389 PlacesBefore, 397 PlacesAfterwards, 1506 TransitionsBefore, 318 TransitionsAfterwards, 2121210 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1592 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 110 ConcurrentYvCompositions, 196 ChoiceCompositions, 1908 TotalNumberOfCompositions, 2287404 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1935097, independent: 1934296, independent conditional: 0, independent unconditional: 1934296, dependent: 801, dependent conditional: 0, dependent unconditional: 801, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1030051, independent: 1029762, independent conditional: 0, independent unconditional: 1029762, dependent: 289, dependent conditional: 0, dependent unconditional: 289, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1935097, independent: 904534, independent conditional: 0, independent unconditional: 904534, dependent: 512, dependent conditional: 0, dependent unconditional: 512, unknown: 1030051, unknown conditional: 0, unknown unconditional: 1030051] , Statistics on independence cache: Total cache size (in pairs): 6049, Positive cache size: 5933, Positive conditional cache size: 0, Positive unconditional cache size: 5933, Negative cache size: 116, Negative conditional cache size: 0, Negative unconditional cache size: 116, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.9s, 1424 PlacesBefore, 407 PlacesAfterwards, 1544 TransitionsBefore, 326 TransitionsAfterwards, 2231840 CoEnabledTransitionPairs, 9 FixpointIterations, 10 TrivialSequentialCompositions, 1581 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 127 ConcurrentYvCompositions, 201 ChoiceCompositions, 1919 TotalNumberOfCompositions, 2473309 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2032203, independent: 2031181, independent conditional: 0, independent unconditional: 2031181, dependent: 1022, dependent conditional: 0, dependent unconditional: 1022, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1103538, independent: 1103242, independent conditional: 0, independent unconditional: 1103242, dependent: 296, dependent conditional: 0, dependent unconditional: 296, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2032203, independent: 927939, independent conditional: 0, independent unconditional: 927939, dependent: 726, dependent conditional: 0, dependent unconditional: 726, unknown: 1103538, unknown conditional: 0, unknown unconditional: 1103538] , Statistics on independence cache: Total cache size (in pairs): 5859, Positive cache size: 5740, Positive conditional cache size: 0, Positive unconditional cache size: 5740, Negative cache size: 119, Negative conditional cache size: 0, Negative unconditional cache size: 119, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.2s, 1459 PlacesBefore, 417 PlacesAfterwards, 1582 TransitionsBefore, 334 TransitionsAfterwards, 2345282 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1693 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 108 ConcurrentYvCompositions, 206 ChoiceCompositions, 2017 TotalNumberOfCompositions, 2553676 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2158739, independent: 2157893, independent conditional: 0, independent unconditional: 2157893, dependent: 846, dependent conditional: 0, dependent unconditional: 846, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1140588, independent: 1140268, independent conditional: 0, independent unconditional: 1140268, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2158739, independent: 1017625, independent conditional: 0, independent unconditional: 1017625, dependent: 526, dependent conditional: 0, dependent unconditional: 526, unknown: 1140588, unknown conditional: 0, unknown unconditional: 1140588] , Statistics on independence cache: Total cache size (in pairs): 6565, Positive cache size: 6442, Positive conditional cache size: 0, Positive unconditional cache size: 6442, Negative cache size: 123, Negative conditional cache size: 0, Negative unconditional cache size: 123, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.6s, 1494 PlacesBefore, 427 PlacesAfterwards, 1620 TransitionsBefore, 342 TransitionsAfterwards, 2461536 CoEnabledTransitionPairs, 9 FixpointIterations, 10 TrivialSequentialCompositions, 1717 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 112 ConcurrentYvCompositions, 211 ChoiceCompositions, 2050 TotalNumberOfCompositions, 2725232 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2260124, independent: 2259083, independent conditional: 0, independent unconditional: 2259083, dependent: 1041, dependent conditional: 0, dependent unconditional: 1041, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1193999, independent: 1193677, independent conditional: 0, independent unconditional: 1193677, dependent: 322, dependent conditional: 0, dependent unconditional: 322, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2260124, independent: 1065406, independent conditional: 0, independent unconditional: 1065406, dependent: 719, dependent conditional: 0, dependent unconditional: 719, unknown: 1193999, unknown conditional: 0, unknown unconditional: 1193999] , Statistics on independence cache: Total cache size (in pairs): 7275, Positive cache size: 7150, Positive conditional cache size: 0, Positive unconditional cache size: 7150, Negative cache size: 125, Negative conditional cache size: 0, Negative unconditional cache size: 125, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.7s, 1529 PlacesBefore, 437 PlacesAfterwards, 1658 TransitionsBefore, 350 TransitionsAfterwards, 2580602 CoEnabledTransitionPairs, 9 FixpointIterations, 10 TrivialSequentialCompositions, 1766 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 123 ConcurrentYvCompositions, 216 ChoiceCompositions, 2115 TotalNumberOfCompositions, 2862430 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2406540, independent: 2405507, independent conditional: 0, independent unconditional: 2405507, dependent: 1033, dependent conditional: 0, dependent unconditional: 1033, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1272047, independent: 1271742, independent conditional: 0, independent unconditional: 1271742, dependent: 305, dependent conditional: 0, dependent unconditional: 305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2406540, independent: 1133765, independent conditional: 0, independent unconditional: 1133765, dependent: 728, dependent conditional: 0, dependent unconditional: 728, unknown: 1272047, unknown conditional: 0, unknown unconditional: 1272047] , Statistics on independence cache: Total cache size (in pairs): 7894, Positive cache size: 7766, Positive conditional cache size: 0, Positive unconditional cache size: 7766, Negative cache size: 128, Negative conditional cache size: 0, Negative unconditional cache size: 128, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.6s, 1564 PlacesBefore, 447 PlacesAfterwards, 1696 TransitionsBefore, 358 TransitionsAfterwards, 2702480 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1772 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 132 ConcurrentYvCompositions, 221 ChoiceCompositions, 2135 TotalNumberOfCompositions, 2909810 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2472709, independent: 2471809, independent conditional: 0, independent unconditional: 2471809, dependent: 900, dependent conditional: 0, dependent unconditional: 900, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1333994, independent: 1333682, independent conditional: 0, independent unconditional: 1333682, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2472709, independent: 1138127, independent conditional: 0, independent unconditional: 1138127, dependent: 588, dependent conditional: 0, dependent unconditional: 588, unknown: 1333994, unknown conditional: 0, unknown unconditional: 1333994] , Statistics on independence cache: Total cache size (in pairs): 8263, Positive cache size: 8130, Positive conditional cache size: 0, Positive unconditional cache size: 8130, Negative cache size: 133, Negative conditional cache size: 0, Negative unconditional cache size: 133, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.2s, 1599 PlacesBefore, 457 PlacesAfterwards, 1734 TransitionsBefore, 366 TransitionsAfterwards, 2827170 CoEnabledTransitionPairs, 9 FixpointIterations, 10 TrivialSequentialCompositions, 1838 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 126 ConcurrentYvCompositions, 226 ChoiceCompositions, 2200 TotalNumberOfCompositions, 3097271 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2598330, independent: 2597236, independent conditional: 0, independent unconditional: 2597236, dependent: 1094, dependent conditional: 0, dependent unconditional: 1094, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1367502, independent: 1367183, independent conditional: 0, independent unconditional: 1367183, dependent: 319, dependent conditional: 0, dependent unconditional: 319, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2598330, independent: 1230053, independent conditional: 0, independent unconditional: 1230053, dependent: 775, dependent conditional: 0, dependent unconditional: 775, unknown: 1367502, unknown conditional: 0, unknown unconditional: 1367502] , Statistics on independence cache: Total cache size (in pairs): 7859, Positive cache size: 7725, Positive conditional cache size: 0, Positive unconditional cache size: 7725, Negative cache size: 134, Negative conditional cache size: 0, Negative unconditional cache size: 134, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.9s, 1634 PlacesBefore, 467 PlacesAfterwards, 1772 TransitionsBefore, 374 TransitionsAfterwards, 2954672 CoEnabledTransitionPairs, 8 FixpointIterations, 10 TrivialSequentialCompositions, 1864 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 124 ConcurrentYvCompositions, 231 ChoiceCompositions, 2229 TotalNumberOfCompositions, 3175854 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2700555, independent: 2699618, independent conditional: 0, independent unconditional: 2699618, dependent: 937, dependent conditional: 0, dependent unconditional: 937, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1445007, independent: 1444680, independent conditional: 0, independent unconditional: 1444680, dependent: 327, dependent conditional: 0, dependent unconditional: 327, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2700555, independent: 1254938, independent conditional: 0, independent unconditional: 1254938, dependent: 610, dependent conditional: 0, dependent unconditional: 610, unknown: 1445007, unknown conditional: 0, unknown unconditional: 1445007] , Statistics on independence cache: Total cache size (in pairs): 8275, Positive cache size: 8135, Positive conditional cache size: 0, Positive unconditional cache size: 8135, Negative cache size: 140, Negative conditional cache size: 0, Negative unconditional cache size: 140, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while CegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 1669 places, 1810 transitions, 6017 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 1669 places, 1810 transitions, 6017 flow and 247058 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 34 for 334ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown