/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.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 03:01:04,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 03:01:05,027 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 [2023-08-27 03:01:05,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 03:01:05,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 03:01:05,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 03:01:05,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 03:01:05,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 03:01:05,068 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 03:01:05,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 03:01:05,072 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 03:01:05,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 03:01:05,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 03:01:05,073 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 03:01:05,074 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 03:01:05,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 03:01:05,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 03:01:05,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 03:01:05,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 03:01:05,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 03:01:05,075 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 03:01:05,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 03:01:05,076 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 03:01:05,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 03:01:05,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 03:01:05,077 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 03:01:05,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 03:01:05,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:01:05,078 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 03:01:05,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 03:01:05,079 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 03:01:05,079 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 03:01:05,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 03:01:05,079 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 03:01:05,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 03:01:05,080 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 03:01:05,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 03:01:05,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 03:01:05,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 03:01:05,406 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 03:01:05,406 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 03:01:05,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2023-08-27 03:01:06,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 03:01:06,891 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 03:01:06,892 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2023-08-27 03:01:06,903 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/442d084b5/0993fac7135d48c784746dcbc4a64a0e/FLAG73df92b38 [2023-08-27 03:01:06,915 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/442d084b5/0993fac7135d48c784746dcbc4a64a0e [2023-08-27 03:01:06,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 03:01:06,918 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 03:01:06,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 03:01:06,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 03:01:06,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 03:01:06,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:01:06" (1/1) ... [2023-08-27 03:01:06,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e7fb13d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:06, skipping insertion in model container [2023-08-27 03:01:06,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:01:06" (1/1) ... [2023-08-27 03:01:06,962 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 03:01:07,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:01:07,290 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 03:01:07,319 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-27 03:01:07,321 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-27 03:01:07,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:01:07,385 INFO L206 MainTranslator]: Completed translation [2023-08-27 03:01:07,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07 WrapperNode [2023-08-27 03:01:07,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 03:01:07,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 03:01:07,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 03:01:07,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 03:01:07,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,443 INFO L138 Inliner]: procedures = 171, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 85 [2023-08-27 03:01:07,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 03:01:07,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 03:01:07,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 03:01:07,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 03:01:07,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 03:01:07,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 03:01:07,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 03:01:07,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 03:01:07,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (1/1) ... [2023-08-27 03:01:07,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:01:07,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 03:01:07,522 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) [2023-08-27 03:01:07,531 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 [2023-08-27 03:01:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 03:01:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-27 03:01:07,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-27 03:01:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 03:01:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 03:01:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 03:01:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 03:01:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 03:01:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 03:01:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 03:01:07,560 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 03:01:07,680 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 03:01:07,682 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 03:01:07,837 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 03:01:07,863 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 03:01:07,863 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-27 03:01:07,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:01:07 BoogieIcfgContainer [2023-08-27 03:01:07,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 03:01:07,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 03:01:07,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 03:01:07,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 03:01:07,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 03:01:06" (1/3) ... [2023-08-27 03:01:07,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d20b0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:01:07, skipping insertion in model container [2023-08-27 03:01:07,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:01:07" (2/3) ... [2023-08-27 03:01:07,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d20b0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:01:07, skipping insertion in model container [2023-08-27 03:01:07,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:01:07" (3/3) ... [2023-08-27 03:01:07,872 INFO L112 eAbstractionObserver]: Analyzing ICFG 09_fmaxsym.i [2023-08-27 03:01:07,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 03:01:07,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-27 03:01:07,889 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 03:01:07,955 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:07,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 84 transitions, 173 flow [2023-08-27 03:01:08,038 INFO L124 PetriNetUnfolderBase]: 8/94 cut-off events. [2023-08-27 03:01:08,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:01:08,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 94 events. 8/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2023-08-27 03:01:08,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 84 transitions, 173 flow [2023-08-27 03:01:08,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 84 transitions, 173 flow [2023-08-27 03:01:08,051 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:08,058 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 84 transitions, 173 flow [2023-08-27 03:01:08,060 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 84 transitions, 173 flow [2023-08-27 03:01:08,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 84 transitions, 173 flow [2023-08-27 03:01:08,084 INFO L124 PetriNetUnfolderBase]: 8/94 cut-off events. [2023-08-27 03:01:08,085 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:01:08,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 94 events. 8/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2023-08-27 03:01:08,088 INFO L119 LiptonReduction]: Number of co-enabled transitions 1300 [2023-08-27 03:01:11,619 INFO L134 LiptonReduction]: Checked pairs total: 1488 [2023-08-27 03:01:11,619 INFO L136 LiptonReduction]: Total number of compositions: 99 [2023-08-27 03:01:11,632 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:11,637 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:11,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:11,641 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:11,641 INFO L124 PetriNetUnfolderBase]: 1/15 cut-off events. [2023-08-27 03:01:11,641 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:01:11,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:11,642 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-27 03:01:11,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:11,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:11,647 INFO L85 PathProgramCache]: Analyzing trace with hash -599554664, now seen corresponding path program 1 times [2023-08-27 03:01:11,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:11,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161929048] [2023-08-27 03:01:11,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:11,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:11,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:11,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:11,801 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:11,801 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:11,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 03:01:11,803 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:11,806 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:11,807 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:11,807 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-27 03:01:11,829 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:11,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 135 transitions, 282 flow [2023-08-27 03:01:11,857 INFO L124 PetriNetUnfolderBase]: 15/157 cut-off events. [2023-08-27 03:01:11,857 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 03:01:11,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 157 events. 15/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 290 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 112. Up to 6 conditions per place. [2023-08-27 03:01:11,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 135 transitions, 282 flow [2023-08-27 03:01:11,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 135 transitions, 282 flow [2023-08-27 03:01:11,861 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:11,861 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 135 transitions, 282 flow [2023-08-27 03:01:11,861 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 135 transitions, 282 flow [2023-08-27 03:01:11,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 135 transitions, 282 flow [2023-08-27 03:01:11,882 INFO L124 PetriNetUnfolderBase]: 15/157 cut-off events. [2023-08-27 03:01:11,882 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 03:01:11,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 157 events. 15/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 290 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 112. Up to 6 conditions per place. [2023-08-27 03:01:11,905 INFO L119 LiptonReduction]: Number of co-enabled transitions 7700 [2023-08-27 03:01:14,461 INFO L134 LiptonReduction]: Checked pairs total: 12376 [2023-08-27 03:01:14,461 INFO L136 LiptonReduction]: Total number of compositions: 135 [2023-08-27 03:01:14,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:14,465 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:14,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:14,470 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:14,471 INFO L124 PetriNetUnfolderBase]: 2/33 cut-off events. [2023-08-27 03:01:14,471 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 03:01:14,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:14,471 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-27 03:01:14,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:14,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:14,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2140123941, now seen corresponding path program 1 times [2023-08-27 03:01:14,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:14,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746197436] [2023-08-27 03:01:14,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:14,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:14,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:14,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:14,515 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:14,516 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:14,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 03:01:14,516 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:14,517 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:14,517 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:14,517 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-27 03:01:14,546 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:14,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 186 transitions, 393 flow [2023-08-27 03:01:14,599 INFO L124 PetriNetUnfolderBase]: 22/220 cut-off events. [2023-08-27 03:01:14,600 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 03:01:14,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 220 events. 22/220 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 557 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 162. Up to 8 conditions per place. [2023-08-27 03:01:14,605 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 186 transitions, 393 flow [2023-08-27 03:01:14,608 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 186 transitions, 393 flow [2023-08-27 03:01:14,608 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:14,608 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 186 transitions, 393 flow [2023-08-27 03:01:14,609 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 186 transitions, 393 flow [2023-08-27 03:01:14,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 186 transitions, 393 flow [2023-08-27 03:01:14,656 INFO L124 PetriNetUnfolderBase]: 22/220 cut-off events. [2023-08-27 03:01:14,656 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 03:01:14,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 220 events. 22/220 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 557 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 162. Up to 8 conditions per place. [2023-08-27 03:01:14,668 INFO L119 LiptonReduction]: Number of co-enabled transitions 19200 [2023-08-27 03:01:17,954 INFO L134 LiptonReduction]: Checked pairs total: 31944 [2023-08-27 03:01:17,954 INFO L136 LiptonReduction]: Total number of compositions: 190 [2023-08-27 03:01:17,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:17,957 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:17,957 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:17,964 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:17,964 INFO L124 PetriNetUnfolderBase]: 4/52 cut-off events. [2023-08-27 03:01:17,964 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 03:01:17,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:17,965 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-27 03:01:17,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:17,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:17,965 INFO L85 PathProgramCache]: Analyzing trace with hash 729949084, now seen corresponding path program 1 times [2023-08-27 03:01:17,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:17,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399560364] [2023-08-27 03:01:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:17,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:18,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:18,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:18,050 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:18,050 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:18,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 03:01:18,050 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:18,051 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:18,051 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:18,051 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-27 03:01:18,095 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:18,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 221 places, 237 transitions, 506 flow [2023-08-27 03:01:18,147 INFO L124 PetriNetUnfolderBase]: 29/283 cut-off events. [2023-08-27 03:01:18,150 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 03:01:18,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 283 events. 29/283 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 834 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 228. Up to 10 conditions per place. [2023-08-27 03:01:18,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 221 places, 237 transitions, 506 flow [2023-08-27 03:01:18,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 221 places, 237 transitions, 506 flow [2023-08-27 03:01:18,162 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:18,162 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 221 places, 237 transitions, 506 flow [2023-08-27 03:01:18,163 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 221 places, 237 transitions, 506 flow [2023-08-27 03:01:18,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 221 places, 237 transitions, 506 flow [2023-08-27 03:01:18,197 INFO L124 PetriNetUnfolderBase]: 29/283 cut-off events. [2023-08-27 03:01:18,197 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 03:01:18,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 283 events. 29/283 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 834 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 228. Up to 10 conditions per place. [2023-08-27 03:01:18,214 INFO L119 LiptonReduction]: Number of co-enabled transitions 35800 [2023-08-27 03:01:21,770 INFO L134 LiptonReduction]: Checked pairs total: 56351 [2023-08-27 03:01:21,771 INFO L136 LiptonReduction]: Total number of compositions: 236 [2023-08-27 03:01:21,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:21,773 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:21,773 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:21,780 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:21,780 INFO L124 PetriNetUnfolderBase]: 7/74 cut-off events. [2023-08-27 03:01:21,780 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 03:01:21,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:21,780 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:21,780 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:21,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:21,781 INFO L85 PathProgramCache]: Analyzing trace with hash -731686777, now seen corresponding path program 1 times [2023-08-27 03:01:21,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:21,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372618464] [2023-08-27 03:01:21,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:21,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:21,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:21,845 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:21,846 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:21,846 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:21,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 03:01:21,846 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:21,847 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:21,847 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:21,847 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-27 03:01:21,874 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:21,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 288 transitions, 621 flow [2023-08-27 03:01:21,927 INFO L124 PetriNetUnfolderBase]: 36/346 cut-off events. [2023-08-27 03:01:21,927 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 03:01:21,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 346 events. 36/346 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1118 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 296. Up to 12 conditions per place. [2023-08-27 03:01:21,931 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 288 transitions, 621 flow [2023-08-27 03:01:21,935 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 268 places, 288 transitions, 621 flow [2023-08-27 03:01:21,936 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:21,936 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 268 places, 288 transitions, 621 flow [2023-08-27 03:01:21,936 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 268 places, 288 transitions, 621 flow [2023-08-27 03:01:21,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 288 transitions, 621 flow [2023-08-27 03:01:21,984 INFO L124 PetriNetUnfolderBase]: 36/346 cut-off events. [2023-08-27 03:01:21,985 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 03:01:21,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 346 events. 36/346 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1118 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 296. Up to 12 conditions per place. [2023-08-27 03:01:22,004 INFO L119 LiptonReduction]: Number of co-enabled transitions 57500 [2023-08-27 03:01:26,168 INFO L134 LiptonReduction]: Checked pairs total: 95797 [2023-08-27 03:01:26,168 INFO L136 LiptonReduction]: Total number of compositions: 295 [2023-08-27 03:01:26,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:26,171 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:26,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:26,181 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:26,181 INFO L124 PetriNetUnfolderBase]: 9/93 cut-off events. [2023-08-27 03:01:26,181 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 03:01:26,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:26,181 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:26,181 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:26,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:26,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1814998373, now seen corresponding path program 1 times [2023-08-27 03:01:26,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:26,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922106139] [2023-08-27 03:01:26,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:26,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:26,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:26,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:26,222 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:26,222 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:26,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 03:01:26,223 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:26,223 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:26,223 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:26,223 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-27 03:01:26,252 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:26,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 339 transitions, 738 flow [2023-08-27 03:01:26,330 INFO L124 PetriNetUnfolderBase]: 43/409 cut-off events. [2023-08-27 03:01:26,331 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 03:01:26,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 409 events. 43/409 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1398 event pairs, 0 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 365. Up to 14 conditions per place. [2023-08-27 03:01:26,337 INFO L82 GeneralOperation]: Start removeDead. Operand has 315 places, 339 transitions, 738 flow [2023-08-27 03:01:26,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 339 transitions, 738 flow [2023-08-27 03:01:26,341 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:26,341 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 315 places, 339 transitions, 738 flow [2023-08-27 03:01:26,341 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 315 places, 339 transitions, 738 flow [2023-08-27 03:01:26,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 339 transitions, 738 flow [2023-08-27 03:01:26,418 INFO L124 PetriNetUnfolderBase]: 43/409 cut-off events. [2023-08-27 03:01:26,418 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 03:01:26,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 409 events. 43/409 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1398 event pairs, 0 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 365. Up to 14 conditions per place. [2023-08-27 03:01:26,446 INFO L119 LiptonReduction]: Number of co-enabled transitions 84300 [2023-08-27 03:01:31,557 INFO L134 LiptonReduction]: Checked pairs total: 145662 [2023-08-27 03:01:31,557 INFO L136 LiptonReduction]: Total number of compositions: 357 [2023-08-27 03:01:31,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:31,559 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:31,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:31,569 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:31,570 INFO L124 PetriNetUnfolderBase]: 11/112 cut-off events. [2023-08-27 03:01:31,570 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 03:01:31,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:31,570 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:31,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:31,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2102324459, now seen corresponding path program 1 times [2023-08-27 03:01:31,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:31,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550276910] [2023-08-27 03:01:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:31,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:31,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:31,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:31,624 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:31,624 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:31,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 03:01:31,624 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:31,624 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:31,625 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:31,625 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-27 03:01:31,659 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:31,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 362 places, 390 transitions, 857 flow [2023-08-27 03:01:31,747 INFO L124 PetriNetUnfolderBase]: 50/472 cut-off events. [2023-08-27 03:01:31,747 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 03:01:31,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 472 events. 50/472 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1681 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 435. Up to 16 conditions per place. [2023-08-27 03:01:31,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 362 places, 390 transitions, 857 flow [2023-08-27 03:01:31,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 362 places, 390 transitions, 857 flow [2023-08-27 03:01:31,763 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:31,763 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 362 places, 390 transitions, 857 flow [2023-08-27 03:01:31,764 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 362 places, 390 transitions, 857 flow [2023-08-27 03:01:31,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 362 places, 390 transitions, 857 flow [2023-08-27 03:01:31,850 INFO L124 PetriNetUnfolderBase]: 50/472 cut-off events. [2023-08-27 03:01:31,850 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 03:01:31,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 472 events. 50/472 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1681 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 435. Up to 16 conditions per place. [2023-08-27 03:01:31,887 INFO L119 LiptonReduction]: Number of co-enabled transitions 116200 [2023-08-27 03:01:37,403 INFO L134 LiptonReduction]: Checked pairs total: 200741 [2023-08-27 03:01:37,403 INFO L136 LiptonReduction]: Total number of compositions: 408 [2023-08-27 03:01:37,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:37,405 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:37,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:37,418 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:37,418 INFO L124 PetriNetUnfolderBase]: 13/131 cut-off events. [2023-08-27 03:01:37,418 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 03:01:37,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:37,418 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:37,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:37,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:37,419 INFO L85 PathProgramCache]: Analyzing trace with hash -847843327, now seen corresponding path program 1 times [2023-08-27 03:01:37,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:37,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454019052] [2023-08-27 03:01:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:37,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:37,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:37,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:37,485 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:37,489 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:37,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 03:01:37,490 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:37,490 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:37,490 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:37,490 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-27 03:01:37,534 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:37,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 409 places, 441 transitions, 978 flow [2023-08-27 03:01:37,641 INFO L124 PetriNetUnfolderBase]: 57/535 cut-off events. [2023-08-27 03:01:37,642 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-27 03:01:37,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 535 events. 57/535 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1982 event pairs, 0 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 506. Up to 18 conditions per place. [2023-08-27 03:01:37,652 INFO L82 GeneralOperation]: Start removeDead. Operand has 409 places, 441 transitions, 978 flow [2023-08-27 03:01:37,659 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 409 places, 441 transitions, 978 flow [2023-08-27 03:01:37,660 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:37,660 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 409 places, 441 transitions, 978 flow [2023-08-27 03:01:37,660 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 409 places, 441 transitions, 978 flow [2023-08-27 03:01:37,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 409 places, 441 transitions, 978 flow [2023-08-27 03:01:37,762 INFO L124 PetriNetUnfolderBase]: 57/535 cut-off events. [2023-08-27 03:01:37,762 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-27 03:01:37,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 535 events. 57/535 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1982 event pairs, 0 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 506. Up to 18 conditions per place. [2023-08-27 03:01:37,816 INFO L119 LiptonReduction]: Number of co-enabled transitions 153200 [2023-08-27 03:01:44,102 INFO L134 LiptonReduction]: Checked pairs total: 261101 [2023-08-27 03:01:44,102 INFO L136 LiptonReduction]: Total number of compositions: 459 [2023-08-27 03:01:44,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:44,104 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:44,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:44,116 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:44,116 INFO L124 PetriNetUnfolderBase]: 15/150 cut-off events. [2023-08-27 03:01:44,116 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-27 03:01:44,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:44,116 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:44,117 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:44,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:44,117 INFO L85 PathProgramCache]: Analyzing trace with hash 265947519, now seen corresponding path program 1 times [2023-08-27 03:01:44,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:44,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520508921] [2023-08-27 03:01:44,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:44,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:44,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:44,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:44,161 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:44,161 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:44,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 03:01:44,161 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:44,162 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:44,162 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:44,162 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-27 03:01:44,213 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:44,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 456 places, 492 transitions, 1101 flow [2023-08-27 03:01:44,362 INFO L124 PetriNetUnfolderBase]: 64/598 cut-off events. [2023-08-27 03:01:44,362 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 03:01:44,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 598 events. 64/598 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2276 event pairs, 0 based on Foata normal form. 0/479 useless extension candidates. Maximal degree in co-relation 578. Up to 20 conditions per place. [2023-08-27 03:01:44,375 INFO L82 GeneralOperation]: Start removeDead. Operand has 456 places, 492 transitions, 1101 flow [2023-08-27 03:01:44,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 456 places, 492 transitions, 1101 flow [2023-08-27 03:01:44,382 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:44,382 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 456 places, 492 transitions, 1101 flow [2023-08-27 03:01:44,383 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 456 places, 492 transitions, 1101 flow [2023-08-27 03:01:44,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 456 places, 492 transitions, 1101 flow [2023-08-27 03:01:44,557 INFO L124 PetriNetUnfolderBase]: 64/598 cut-off events. [2023-08-27 03:01:44,557 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 03:01:44,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 598 events. 64/598 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2276 event pairs, 0 based on Foata normal form. 0/479 useless extension candidates. Maximal degree in co-relation 578. Up to 20 conditions per place. [2023-08-27 03:01:44,599 INFO L119 LiptonReduction]: Number of co-enabled transitions 195300 [2023-08-27 03:01:51,372 INFO L134 LiptonReduction]: Checked pairs total: 334201 [2023-08-27 03:01:51,372 INFO L136 LiptonReduction]: Total number of compositions: 509 [2023-08-27 03:01:51,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:51,382 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:51,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:51,400 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:51,401 INFO L124 PetriNetUnfolderBase]: 16/166 cut-off events. [2023-08-27 03:01:51,401 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 03:01:51,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:51,401 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:51,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:51,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:51,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1197662443, now seen corresponding path program 1 times [2023-08-27 03:01:51,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:51,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807920145] [2023-08-27 03:01:51,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:51,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:51,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:51,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:51,443 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:51,444 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:51,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 03:01:51,444 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:51,444 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:51,445 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:51,445 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-27 03:01:51,492 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:51,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 503 places, 543 transitions, 1226 flow [2023-08-27 03:01:51,661 INFO L124 PetriNetUnfolderBase]: 71/661 cut-off events. [2023-08-27 03:01:51,661 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 03:01:51,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 661 events. 71/661 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2558 event pairs, 0 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 653. Up to 22 conditions per place. [2023-08-27 03:01:51,679 INFO L82 GeneralOperation]: Start removeDead. Operand has 503 places, 543 transitions, 1226 flow [2023-08-27 03:01:51,687 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 503 places, 543 transitions, 1226 flow [2023-08-27 03:01:51,687 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:51,688 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 503 places, 543 transitions, 1226 flow [2023-08-27 03:01:51,688 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 503 places, 543 transitions, 1226 flow [2023-08-27 03:01:51,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 503 places, 543 transitions, 1226 flow [2023-08-27 03:01:51,827 INFO L124 PetriNetUnfolderBase]: 71/661 cut-off events. [2023-08-27 03:01:51,827 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 03:01:51,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 661 events. 71/661 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2558 event pairs, 0 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 653. Up to 22 conditions per place. [2023-08-27 03:01:51,891 INFO L119 LiptonReduction]: Number of co-enabled transitions 242500 [2023-08-27 03:01:59,460 INFO L134 LiptonReduction]: Checked pairs total: 404933 [2023-08-27 03:01:59,460 INFO L136 LiptonReduction]: Total number of compositions: 564 [2023-08-27 03:01:59,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:59,462 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:59,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:59,482 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:59,483 INFO L124 PetriNetUnfolderBase]: 18/185 cut-off events. [2023-08-27 03:01:59,483 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 03:01:59,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:59,483 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:59,483 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:59,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:59,484 INFO L85 PathProgramCache]: Analyzing trace with hash -701424264, now seen corresponding path program 1 times [2023-08-27 03:01:59,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:59,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242578823] [2023-08-27 03:01:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:59,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:59,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:59,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:59,519 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:59,519 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:59,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 03:01:59,520 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:59,520 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:59,520 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:59,520 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-27 03:01:59,568 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:59,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 550 places, 594 transitions, 1353 flow [2023-08-27 03:01:59,728 INFO L124 PetriNetUnfolderBase]: 78/724 cut-off events. [2023-08-27 03:01:59,728 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-27 03:01:59,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 724 events. 78/724 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2849 event pairs, 0 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 729. Up to 24 conditions per place. [2023-08-27 03:01:59,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 550 places, 594 transitions, 1353 flow [2023-08-27 03:01:59,755 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 550 places, 594 transitions, 1353 flow [2023-08-27 03:01:59,755 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:59,755 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 550 places, 594 transitions, 1353 flow [2023-08-27 03:01:59,755 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 550 places, 594 transitions, 1353 flow [2023-08-27 03:01:59,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 550 places, 594 transitions, 1353 flow [2023-08-27 03:01:59,972 INFO L124 PetriNetUnfolderBase]: 78/724 cut-off events. [2023-08-27 03:01:59,972 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-27 03:01:59,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 724 events. 78/724 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2849 event pairs, 0 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 729. Up to 24 conditions per place. [2023-08-27 03:02:00,031 INFO L119 LiptonReduction]: Number of co-enabled transitions 294800 [2023-08-27 03:02:08,389 INFO L134 LiptonReduction]: Checked pairs total: 491265 [2023-08-27 03:02:08,389 INFO L136 LiptonReduction]: Total number of compositions: 618 [2023-08-27 03:02:08,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:02:08,391 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:02:08,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:02:08,421 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:02:08,422 INFO L124 PetriNetUnfolderBase]: 21/207 cut-off events. [2023-08-27 03:02:08,422 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-27 03:02:08,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:02:08,422 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:02:08,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:02:08,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:02:08,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1305132970, now seen corresponding path program 1 times [2023-08-27 03:02:08,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:02:08,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935751503] [2023-08-27 03:02:08,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:02:08,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:02:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:08,450 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:02:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:08,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:02:08,484 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:02:08,484 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:02:08,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 03:02:08,485 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:02:08,486 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:02:08,487 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:02:08,487 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-27 03:02:08,548 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:02:08,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 645 transitions, 1482 flow [2023-08-27 03:02:08,789 INFO L124 PetriNetUnfolderBase]: 85/787 cut-off events. [2023-08-27 03:02:08,790 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-27 03:02:08,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 902 conditions, 787 events. 85/787 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3131 event pairs, 0 based on Foata normal form. 0/629 useless extension candidates. Maximal degree in co-relation 806. Up to 26 conditions per place. [2023-08-27 03:02:08,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 597 places, 645 transitions, 1482 flow [2023-08-27 03:02:08,826 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 645 transitions, 1482 flow [2023-08-27 03:02:08,826 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:02:08,826 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 597 places, 645 transitions, 1482 flow [2023-08-27 03:02:08,826 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 597 places, 645 transitions, 1482 flow [2023-08-27 03:02:08,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 645 transitions, 1482 flow [2023-08-27 03:02:09,008 INFO L124 PetriNetUnfolderBase]: 85/787 cut-off events. [2023-08-27 03:02:09,008 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-27 03:02:09,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 902 conditions, 787 events. 85/787 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3131 event pairs, 0 based on Foata normal form. 0/629 useless extension candidates. Maximal degree in co-relation 806. Up to 26 conditions per place. [2023-08-27 03:02:09,104 INFO L119 LiptonReduction]: Number of co-enabled transitions 352200 [2023-08-27 03:02:17,958 INFO L134 LiptonReduction]: Checked pairs total: 595294 [2023-08-27 03:02:17,958 INFO L136 LiptonReduction]: Total number of compositions: 672 [2023-08-27 03:02:17,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:02:17,960 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:02:17,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:02:17,987 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:02:17,987 INFO L124 PetriNetUnfolderBase]: 23/226 cut-off events. [2023-08-27 03:02:17,987 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-27 03:02:17,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:02:17,987 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:02:17,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:02:17,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:02:17,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1519199836, now seen corresponding path program 1 times [2023-08-27 03:02:17,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:02:17,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910895352] [2023-08-27 03:02:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:02:17,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:02:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:18,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:02:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:18,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:02:18,039 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:02:18,039 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:02:18,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 03:02:18,039 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:02:18,045 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:02:18,045 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:02:18,045 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-27 03:02:18,095 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:02:18,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 644 places, 696 transitions, 1613 flow [2023-08-27 03:02:18,358 INFO L124 PetriNetUnfolderBase]: 92/850 cut-off events. [2023-08-27 03:02:18,358 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-27 03:02:18,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 850 events. 92/850 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3411 event pairs, 0 based on Foata normal form. 0/679 useless extension candidates. Maximal degree in co-relation 884. Up to 28 conditions per place. [2023-08-27 03:02:18,388 INFO L82 GeneralOperation]: Start removeDead. Operand has 644 places, 696 transitions, 1613 flow [2023-08-27 03:02:18,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 644 places, 696 transitions, 1613 flow [2023-08-27 03:02:18,399 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:02:18,400 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 644 places, 696 transitions, 1613 flow [2023-08-27 03:02:18,400 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 644 places, 696 transitions, 1613 flow [2023-08-27 03:02:18,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 644 places, 696 transitions, 1613 flow [2023-08-27 03:02:18,702 INFO L124 PetriNetUnfolderBase]: 92/850 cut-off events. [2023-08-27 03:02:18,702 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-27 03:02:18,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 850 events. 92/850 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3411 event pairs, 0 based on Foata normal form. 0/679 useless extension candidates. Maximal degree in co-relation 884. Up to 28 conditions per place. [2023-08-27 03:02:18,796 INFO L119 LiptonReduction]: Number of co-enabled transitions 414700 [2023-08-27 03:02:28,329 INFO L134 LiptonReduction]: Checked pairs total: 753205 [2023-08-27 03:02:28,330 INFO L136 LiptonReduction]: Total number of compositions: 735 [2023-08-27 03:02:28,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:02:28,331 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:02:28,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:02:28,360 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:02:28,360 INFO L124 PetriNetUnfolderBase]: 25/245 cut-off events. [2023-08-27 03:02:28,360 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-27 03:02:28,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:02:28,360 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:02:28,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:02:28,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:02:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1962423380, now seen corresponding path program 1 times [2023-08-27 03:02:28,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:02:28,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587205510] [2023-08-27 03:02:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:02:28,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:02:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:28,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:02:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:28,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:02:28,400 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:02:28,400 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:02:28,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 03:02:28,400 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:02:28,401 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:02:28,401 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:02:28,401 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-27 03:02:28,457 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:02:28,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 691 places, 747 transitions, 1746 flow [2023-08-27 03:02:28,691 INFO L124 PetriNetUnfolderBase]: 99/913 cut-off events. [2023-08-27 03:02:28,691 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-27 03:02:28,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 913 events. 99/913 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3709 event pairs, 0 based on Foata normal form. 0/729 useless extension candidates. Maximal degree in co-relation 963. Up to 30 conditions per place. [2023-08-27 03:02:28,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 691 places, 747 transitions, 1746 flow [2023-08-27 03:02:28,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 691 places, 747 transitions, 1746 flow [2023-08-27 03:02:28,729 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:02:28,729 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 691 places, 747 transitions, 1746 flow [2023-08-27 03:02:28,729 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 691 places, 747 transitions, 1746 flow [2023-08-27 03:02:28,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 691 places, 747 transitions, 1746 flow [2023-08-27 03:02:28,932 INFO L124 PetriNetUnfolderBase]: 99/913 cut-off events. [2023-08-27 03:02:28,932 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-27 03:02:28,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 913 events. 99/913 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3709 event pairs, 0 based on Foata normal form. 0/729 useless extension candidates. Maximal degree in co-relation 963. Up to 30 conditions per place. [2023-08-27 03:02:29,043 INFO L119 LiptonReduction]: Number of co-enabled transitions 482300 [2023-08-27 03:02:39,415 INFO L134 LiptonReduction]: Checked pairs total: 826828 [2023-08-27 03:02:39,415 INFO L136 LiptonReduction]: Total number of compositions: 774 [2023-08-27 03:02:39,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:02:39,417 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:02:39,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:02:39,445 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:02:39,445 INFO L124 PetriNetUnfolderBase]: 26/261 cut-off events. [2023-08-27 03:02:39,445 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-27 03:02:39,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:02:39,445 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:02:39,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:02:39,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:02:39,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1050697678, now seen corresponding path program 1 times [2023-08-27 03:02:39,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:02:39,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129614610] [2023-08-27 03:02:39,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:02:39,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:02:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:39,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:02:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:39,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:02:39,490 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:02:39,490 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:02:39,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 03:02:39,491 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:02:39,491 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:02:39,491 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:02:39,491 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-27 03:02:39,558 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:02:39,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 738 places, 798 transitions, 1881 flow [2023-08-27 03:02:39,891 INFO L124 PetriNetUnfolderBase]: 106/976 cut-off events. [2023-08-27 03:02:39,891 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-27 03:02:39,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 976 events. 106/976 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3992 event pairs, 0 based on Foata normal form. 0/779 useless extension candidates. Maximal degree in co-relation 1043. Up to 32 conditions per place. [2023-08-27 03:02:39,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 738 places, 798 transitions, 1881 flow [2023-08-27 03:02:39,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 738 places, 798 transitions, 1881 flow [2023-08-27 03:02:39,919 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:02:39,919 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 738 places, 798 transitions, 1881 flow [2023-08-27 03:02:39,919 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 738 places, 798 transitions, 1881 flow [2023-08-27 03:02:39,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 738 places, 798 transitions, 1881 flow [2023-08-27 03:02:40,245 INFO L124 PetriNetUnfolderBase]: 106/976 cut-off events. [2023-08-27 03:02:40,245 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-27 03:02:40,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 976 events. 106/976 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3992 event pairs, 0 based on Foata normal form. 0/779 useless extension candidates. Maximal degree in co-relation 1043. Up to 32 conditions per place. [2023-08-27 03:02:40,369 INFO L119 LiptonReduction]: Number of co-enabled transitions 555000 [2023-08-27 03:02:51,267 INFO L134 LiptonReduction]: Checked pairs total: 951460 [2023-08-27 03:02:51,267 INFO L136 LiptonReduction]: Total number of compositions: 830 [2023-08-27 03:02:51,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:02:51,269 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:02:51,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:02:51,299 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:02:51,299 INFO L124 PetriNetUnfolderBase]: 29/283 cut-off events. [2023-08-27 03:02:51,299 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-27 03:02:51,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:02:51,299 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] [2023-08-27 03:02:51,299 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:02:51,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:02:51,300 INFO L85 PathProgramCache]: Analyzing trace with hash 278693051, now seen corresponding path program 1 times [2023-08-27 03:02:51,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:02:51,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025040789] [2023-08-27 03:02:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:02:51,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:02:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:51,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:02:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:51,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:02:51,353 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:02:51,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:02:51,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 03:02:51,355 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:02:51,356 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:02:51,356 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:02:51,356 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-27 03:02:51,433 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:02:51,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 785 places, 849 transitions, 2018 flow [2023-08-27 03:02:51,756 INFO L124 PetriNetUnfolderBase]: 113/1039 cut-off events. [2023-08-27 03:02:51,757 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-27 03:02:51,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 1039 events. 113/1039 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4291 event pairs, 0 based on Foata normal form. 0/829 useless extension candidates. Maximal degree in co-relation 1124. Up to 34 conditions per place. [2023-08-27 03:02:51,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 785 places, 849 transitions, 2018 flow [2023-08-27 03:02:51,799 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 785 places, 849 transitions, 2018 flow [2023-08-27 03:02:51,799 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:02:51,799 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 785 places, 849 transitions, 2018 flow [2023-08-27 03:02:51,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 785 places, 849 transitions, 2018 flow [2023-08-27 03:02:51,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 785 places, 849 transitions, 2018 flow [2023-08-27 03:02:52,105 INFO L124 PetriNetUnfolderBase]: 113/1039 cut-off events. [2023-08-27 03:02:52,105 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-27 03:02:52,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 1039 events. 113/1039 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4291 event pairs, 0 based on Foata normal form. 0/829 useless extension candidates. Maximal degree in co-relation 1124. Up to 34 conditions per place. [2023-08-27 03:02:52,261 INFO L119 LiptonReduction]: Number of co-enabled transitions 632800 [2023-08-27 03:03:04,229 INFO L134 LiptonReduction]: Checked pairs total: 1062894 [2023-08-27 03:03:04,229 INFO L136 LiptonReduction]: Total number of compositions: 890 [2023-08-27 03:03:04,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:03:04,231 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:03:04,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:03:04,277 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:03:04,277 INFO L124 PetriNetUnfolderBase]: 30/299 cut-off events. [2023-08-27 03:03:04,277 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-27 03:03:04,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:03:04,277 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] [2023-08-27 03:03:04,277 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:03:04,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:03:04,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2025844880, now seen corresponding path program 1 times [2023-08-27 03:03:04,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:03:04,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183592017] [2023-08-27 03:03:04,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:03:04,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:03:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:04,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:03:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:04,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:03:04,326 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:03:04,326 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:03:04,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-27 03:03:04,326 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:03:04,327 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:03:04,327 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:03:04,327 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-27 03:03:04,397 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:03:04,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 832 places, 900 transitions, 2157 flow [2023-08-27 03:03:04,828 INFO L124 PetriNetUnfolderBase]: 120/1102 cut-off events. [2023-08-27 03:03:04,828 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-27 03:03:04,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 1102 events. 120/1102 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4518 event pairs, 0 based on Foata normal form. 0/879 useless extension candidates. Maximal degree in co-relation 1206. Up to 36 conditions per place. [2023-08-27 03:03:04,852 INFO L82 GeneralOperation]: Start removeDead. Operand has 832 places, 900 transitions, 2157 flow [2023-08-27 03:03:04,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 832 places, 900 transitions, 2157 flow [2023-08-27 03:03:04,862 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:03:04,862 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 832 places, 900 transitions, 2157 flow [2023-08-27 03:03:04,862 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 832 places, 900 transitions, 2157 flow [2023-08-27 03:03:04,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 832 places, 900 transitions, 2157 flow [2023-08-27 03:03:05,181 INFO L124 PetriNetUnfolderBase]: 120/1102 cut-off events. [2023-08-27 03:03:05,181 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-27 03:03:05,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 1102 events. 120/1102 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4518 event pairs, 0 based on Foata normal form. 0/879 useless extension candidates. Maximal degree in co-relation 1206. Up to 36 conditions per place. [2023-08-27 03:03:05,348 INFO L119 LiptonReduction]: Number of co-enabled transitions 715700 [2023-08-27 03:03:18,186 INFO L134 LiptonReduction]: Checked pairs total: 1198164 [2023-08-27 03:03:18,187 INFO L136 LiptonReduction]: Total number of compositions: 941 [2023-08-27 03:03:18,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:03:18,189 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:03:18,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:03:18,225 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:03:18,225 INFO L124 PetriNetUnfolderBase]: 32/318 cut-off events. [2023-08-27 03:03:18,225 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-27 03:03:18,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:03:18,225 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] [2023-08-27 03:03:18,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:03:18,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:03:18,226 INFO L85 PathProgramCache]: Analyzing trace with hash 921257356, now seen corresponding path program 1 times [2023-08-27 03:03:18,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:03:18,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586382572] [2023-08-27 03:03:18,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:03:18,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:03:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:18,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:03:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:18,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:03:18,274 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:03:18,275 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:03:18,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-27 03:03:18,275 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:03:18,275 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:03:18,275 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:03:18,275 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-27 03:03:18,350 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:03:18,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 879 places, 951 transitions, 2298 flow [2023-08-27 03:03:18,780 INFO L124 PetriNetUnfolderBase]: 127/1165 cut-off events. [2023-08-27 03:03:18,780 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-27 03:03:18,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 1165 events. 127/1165 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4794 event pairs, 0 based on Foata normal form. 0/929 useless extension candidates. Maximal degree in co-relation 1289. Up to 38 conditions per place. [2023-08-27 03:03:18,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 879 places, 951 transitions, 2298 flow [2023-08-27 03:03:18,837 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 879 places, 951 transitions, 2298 flow [2023-08-27 03:03:18,837 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:03:18,838 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 879 places, 951 transitions, 2298 flow [2023-08-27 03:03:18,838 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 879 places, 951 transitions, 2298 flow [2023-08-27 03:03:18,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 879 places, 951 transitions, 2298 flow [2023-08-27 03:03:19,200 INFO L124 PetriNetUnfolderBase]: 127/1165 cut-off events. [2023-08-27 03:03:19,201 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-27 03:03:19,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 1165 events. 127/1165 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4794 event pairs, 0 based on Foata normal form. 0/929 useless extension candidates. Maximal degree in co-relation 1289. Up to 38 conditions per place. [2023-08-27 03:03:19,496 INFO L119 LiptonReduction]: Number of co-enabled transitions 803700 [2023-08-27 03:03:32,587 INFO L134 LiptonReduction]: Checked pairs total: 1371955 [2023-08-27 03:03:32,587 INFO L136 LiptonReduction]: Total number of compositions: 999 [2023-08-27 03:03:32,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:03:32,589 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:03:32,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:03:32,629 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:03:32,629 INFO L124 PetriNetUnfolderBase]: 34/337 cut-off events. [2023-08-27 03:03:32,629 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-27 03:03:32,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:03:32,630 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] [2023-08-27 03:03:32,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:03:32,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:03:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1380457944, now seen corresponding path program 1 times [2023-08-27 03:03:32,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:03:32,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56519270] [2023-08-27 03:03:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:03:32,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:03:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:32,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:03:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:32,680 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:03:32,680 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:03:32,680 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:03:32,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 03:03:32,681 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:03:32,681 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:03:32,681 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:03:32,681 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-27 03:03:32,758 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:03:32,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 926 places, 1002 transitions, 2441 flow [2023-08-27 03:03:33,193 INFO L124 PetriNetUnfolderBase]: 134/1228 cut-off events. [2023-08-27 03:03:33,194 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-27 03:03:33,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 1228 events. 134/1228 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5088 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1373. Up to 40 conditions per place. [2023-08-27 03:03:33,232 INFO L82 GeneralOperation]: Start removeDead. Operand has 926 places, 1002 transitions, 2441 flow [2023-08-27 03:03:33,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 926 places, 1002 transitions, 2441 flow [2023-08-27 03:03:33,247 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:03:33,247 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 926 places, 1002 transitions, 2441 flow [2023-08-27 03:03:33,247 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 926 places, 1002 transitions, 2441 flow [2023-08-27 03:03:33,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 926 places, 1002 transitions, 2441 flow [2023-08-27 03:03:33,641 INFO L124 PetriNetUnfolderBase]: 134/1228 cut-off events. [2023-08-27 03:03:33,641 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-27 03:03:33,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 1228 events. 134/1228 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5088 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1373. Up to 40 conditions per place. [2023-08-27 03:03:33,855 INFO L119 LiptonReduction]: Number of co-enabled transitions 896800 [2023-08-27 03:03:47,950 INFO L134 LiptonReduction]: Checked pairs total: 1514940 [2023-08-27 03:03:47,950 INFO L136 LiptonReduction]: Total number of compositions: 1049 [2023-08-27 03:03:47,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:03:47,952 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:03:47,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:03:47,994 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:03:47,994 INFO L124 PetriNetUnfolderBase]: 36/356 cut-off events. [2023-08-27 03:03:47,994 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-27 03:03:47,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:03:47,994 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] [2023-08-27 03:03:47,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:03:47,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:03:47,994 INFO L85 PathProgramCache]: Analyzing trace with hash 865081284, now seen corresponding path program 1 times [2023-08-27 03:03:47,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:03:47,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708359100] [2023-08-27 03:03:47,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:03:47,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:03:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:48,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:03:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:48,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:03:48,081 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:03:48,082 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:03:48,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-27 03:03:48,082 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:03:48,083 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:03:48,084 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:03:48,084 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-27 03:03:48,169 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:03:48,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 973 places, 1053 transitions, 2586 flow [2023-08-27 03:03:48,731 INFO L124 PetriNetUnfolderBase]: 141/1291 cut-off events. [2023-08-27 03:03:48,731 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-27 03:03:48,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1562 conditions, 1291 events. 141/1291 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5369 event pairs, 0 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 1458. Up to 42 conditions per place. [2023-08-27 03:03:48,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 973 places, 1053 transitions, 2586 flow [2023-08-27 03:03:48,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 973 places, 1053 transitions, 2586 flow [2023-08-27 03:03:48,773 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:03:48,774 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 973 places, 1053 transitions, 2586 flow [2023-08-27 03:03:48,774 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 973 places, 1053 transitions, 2586 flow [2023-08-27 03:03:48,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 973 places, 1053 transitions, 2586 flow [2023-08-27 03:03:49,222 INFO L124 PetriNetUnfolderBase]: 141/1291 cut-off events. [2023-08-27 03:03:49,222 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-27 03:03:49,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1562 conditions, 1291 events. 141/1291 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5369 event pairs, 0 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 1458. Up to 42 conditions per place. [2023-08-27 03:03:49,460 INFO L119 LiptonReduction]: Number of co-enabled transitions 995000 [2023-08-27 03:04:04,380 INFO L134 LiptonReduction]: Checked pairs total: 1679549 [2023-08-27 03:04:04,380 INFO L136 LiptonReduction]: Total number of compositions: 1100 [2023-08-27 03:04:04,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:04:04,382 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:04:04,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:04:04,436 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:04:04,437 INFO L124 PetriNetUnfolderBase]: 38/375 cut-off events. [2023-08-27 03:04:04,437 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-27 03:04:04,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:04:04,437 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] [2023-08-27 03:04:04,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:04:04,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:04:04,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1944669374, now seen corresponding path program 1 times [2023-08-27 03:04:04,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:04:04,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559859085] [2023-08-27 03:04:04,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:04:04,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:04:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:04,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:04:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:04,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:04:04,491 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:04:04,491 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:04:04,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-27 03:04:04,492 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:04:04,492 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:04:04,492 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:04:04,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-27 03:04:04,573 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:04:04,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1020 places, 1104 transitions, 2733 flow [2023-08-27 03:04:05,186 INFO L124 PetriNetUnfolderBase]: 148/1354 cut-off events. [2023-08-27 03:04:05,187 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-27 03:04:05,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1649 conditions, 1354 events. 148/1354 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5634 event pairs, 0 based on Foata normal form. 0/1079 useless extension candidates. Maximal degree in co-relation 1544. Up to 44 conditions per place. [2023-08-27 03:04:05,224 INFO L82 GeneralOperation]: Start removeDead. Operand has 1020 places, 1104 transitions, 2733 flow [2023-08-27 03:04:05,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1020 places, 1104 transitions, 2733 flow [2023-08-27 03:04:05,238 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:04:05,238 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1020 places, 1104 transitions, 2733 flow [2023-08-27 03:04:05,238 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1020 places, 1104 transitions, 2733 flow [2023-08-27 03:04:05,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1020 places, 1104 transitions, 2733 flow [2023-08-27 03:04:05,717 INFO L124 PetriNetUnfolderBase]: 148/1354 cut-off events. [2023-08-27 03:04:05,717 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-27 03:04:05,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1649 conditions, 1354 events. 148/1354 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5634 event pairs, 0 based on Foata normal form. 0/1079 useless extension candidates. Maximal degree in co-relation 1544. Up to 44 conditions per place. [2023-08-27 03:04:05,988 INFO L119 LiptonReduction]: Number of co-enabled transitions 1098300 [2023-08-27 03:04:21,478 INFO L134 LiptonReduction]: Checked pairs total: 1845811 [2023-08-27 03:04:21,478 INFO L136 LiptonReduction]: Total number of compositions: 1149 [2023-08-27 03:04:21,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:04:21,480 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:04:21,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:04:21,530 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:04:21,530 INFO L124 PetriNetUnfolderBase]: 41/397 cut-off events. [2023-08-27 03:04:21,530 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-27 03:04:21,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:04:21,531 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] [2023-08-27 03:04:21,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:04:21,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:04:21,531 INFO L85 PathProgramCache]: Analyzing trace with hash -766231349, now seen corresponding path program 1 times [2023-08-27 03:04:21,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:04:21,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898745481] [2023-08-27 03:04:21,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:04:21,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:04:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:21,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:04:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:21,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:04:21,592 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:04:21,592 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:04:21,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-27 03:04:21,593 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:04:21,593 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:04:21,593 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:04:21,593 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-08-27 03:04:21,681 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:04:21,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1067 places, 1155 transitions, 2882 flow [2023-08-27 03:04:22,257 INFO L124 PetriNetUnfolderBase]: 155/1417 cut-off events. [2023-08-27 03:04:22,257 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-27 03:04:22,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1737 conditions, 1417 events. 155/1417 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5934 event pairs, 0 based on Foata normal form. 0/1129 useless extension candidates. Maximal degree in co-relation 1631. Up to 46 conditions per place. [2023-08-27 03:04:22,313 INFO L82 GeneralOperation]: Start removeDead. Operand has 1067 places, 1155 transitions, 2882 flow [2023-08-27 03:04:22,332 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1067 places, 1155 transitions, 2882 flow [2023-08-27 03:04:22,332 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:04:22,332 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1067 places, 1155 transitions, 2882 flow [2023-08-27 03:04:22,332 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1067 places, 1155 transitions, 2882 flow [2023-08-27 03:04:22,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1067 places, 1155 transitions, 2882 flow [2023-08-27 03:04:22,839 INFO L124 PetriNetUnfolderBase]: 155/1417 cut-off events. [2023-08-27 03:04:22,839 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-27 03:04:22,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1737 conditions, 1417 events. 155/1417 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5934 event pairs, 0 based on Foata normal form. 0/1129 useless extension candidates. Maximal degree in co-relation 1631. Up to 46 conditions per place. [2023-08-27 03:04:23,136 INFO L119 LiptonReduction]: Number of co-enabled transitions 1206700 [2023-08-27 03:04:39,670 INFO L134 LiptonReduction]: Checked pairs total: 2081666 [2023-08-27 03:04:39,670 INFO L136 LiptonReduction]: Total number of compositions: 1222 [2023-08-27 03:04:39,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:04:39,672 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:04:39,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:04:39,732 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:04:39,732 INFO L124 PetriNetUnfolderBase]: 42/413 cut-off events. [2023-08-27 03:04:39,732 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-27 03:04:39,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:04:39,732 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] [2023-08-27 03:04:39,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:04:39,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:04:39,733 INFO L85 PathProgramCache]: Analyzing trace with hash 232724242, now seen corresponding path program 1 times [2023-08-27 03:04:39,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:04:39,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347944709] [2023-08-27 03:04:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:04:39,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:04:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:39,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:04:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:39,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:04:39,803 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:04:39,803 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:04:39,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-27 03:04:39,803 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:04:39,803 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:04:39,803 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:04:39,804 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-08-27 03:04:39,901 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:04:39,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1114 places, 1206 transitions, 3033 flow [2023-08-27 03:04:40,520 INFO L124 PetriNetUnfolderBase]: 162/1480 cut-off events. [2023-08-27 03:04:40,521 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-27 03:04:40,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1826 conditions, 1480 events. 162/1480 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6223 event pairs, 0 based on Foata normal form. 0/1179 useless extension candidates. Maximal degree in co-relation 1719. Up to 48 conditions per place. [2023-08-27 03:04:40,591 INFO L82 GeneralOperation]: Start removeDead. Operand has 1114 places, 1206 transitions, 3033 flow [2023-08-27 03:04:40,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1114 places, 1206 transitions, 3033 flow [2023-08-27 03:04:40,616 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:04:40,616 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1114 places, 1206 transitions, 3033 flow [2023-08-27 03:04:40,616 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1114 places, 1206 transitions, 3033 flow [2023-08-27 03:04:40,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1114 places, 1206 transitions, 3033 flow [2023-08-27 03:04:41,213 INFO L124 PetriNetUnfolderBase]: 162/1480 cut-off events. [2023-08-27 03:04:41,214 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-27 03:04:41,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1826 conditions, 1480 events. 162/1480 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6223 event pairs, 0 based on Foata normal form. 0/1179 useless extension candidates. Maximal degree in co-relation 1719. Up to 48 conditions per place. [2023-08-27 03:04:41,506 INFO L119 LiptonReduction]: Number of co-enabled transitions 1320200 [2023-08-27 03:04:58,695 INFO L134 LiptonReduction]: Checked pairs total: 2236504 [2023-08-27 03:04:58,695 INFO L136 LiptonReduction]: Total number of compositions: 1259 [2023-08-27 03:04:58,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:04:58,697 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:04:58,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:04:58,793 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:04:58,793 INFO L124 PetriNetUnfolderBase]: 44/432 cut-off events. [2023-08-27 03:04:58,793 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-27 03:04:58,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:04:58,793 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] [2023-08-27 03:04:58,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:04:58,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:04:58,794 INFO L85 PathProgramCache]: Analyzing trace with hash -187014587, now seen corresponding path program 1 times [2023-08-27 03:04:58,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:04:58,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866588380] [2023-08-27 03:04:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:04:58,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:04:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:58,825 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:04:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:58,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:04:58,860 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:04:58,860 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:04:58,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-27 03:04:58,860 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:04:58,861 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:04:58,861 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:04:58,861 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-08-27 03:04:58,956 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:04:58,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1161 places, 1257 transitions, 3186 flow [2023-08-27 03:04:59,611 INFO L124 PetriNetUnfolderBase]: 169/1543 cut-off events. [2023-08-27 03:04:59,611 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-27 03:04:59,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 1543 events. 169/1543 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6469 event pairs, 0 based on Foata normal form. 0/1229 useless extension candidates. Maximal degree in co-relation 1808. Up to 50 conditions per place. [2023-08-27 03:04:59,689 INFO L82 GeneralOperation]: Start removeDead. Operand has 1161 places, 1257 transitions, 3186 flow [2023-08-27 03:04:59,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1161 places, 1257 transitions, 3186 flow [2023-08-27 03:04:59,717 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:04:59,717 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1161 places, 1257 transitions, 3186 flow [2023-08-27 03:04:59,718 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1161 places, 1257 transitions, 3186 flow [2023-08-27 03:04:59,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1161 places, 1257 transitions, 3186 flow [2023-08-27 03:05:00,409 INFO L124 PetriNetUnfolderBase]: 169/1543 cut-off events. [2023-08-27 03:05:00,409 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-27 03:05:00,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 1543 events. 169/1543 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6469 event pairs, 0 based on Foata normal form. 0/1229 useless extension candidates. Maximal degree in co-relation 1808. Up to 50 conditions per place. [2023-08-27 03:05:00,687 INFO L119 LiptonReduction]: Number of co-enabled transitions 1438800 [2023-08-27 03:05:18,456 INFO L134 LiptonReduction]: Checked pairs total: 2435865 [2023-08-27 03:05:18,456 INFO L136 LiptonReduction]: Total number of compositions: 1312 [2023-08-27 03:05:18,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:05:18,458 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:05:18,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:05:18,559 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:05:18,559 INFO L124 PetriNetUnfolderBase]: 47/454 cut-off events. [2023-08-27 03:05:18,559 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-27 03:05:18,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:05:18,559 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] [2023-08-27 03:05:18,559 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:05:18,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:05:18,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1811055207, now seen corresponding path program 1 times [2023-08-27 03:05:18,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:05:18,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580574904] [2023-08-27 03:05:18,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:05:18,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:05:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:05:18,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:05:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:05:18,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:05:18,627 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:05:18,627 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:05:18,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-27 03:05:18,627 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:05:18,628 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:05:18,628 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:05:18,628 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-08-27 03:05:18,712 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:05:18,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1208 places, 1308 transitions, 3341 flow [2023-08-27 03:05:19,384 INFO L124 PetriNetUnfolderBase]: 176/1606 cut-off events. [2023-08-27 03:05:19,384 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-27 03:05:19,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2007 conditions, 1606 events. 176/1606 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6763 event pairs, 0 based on Foata normal form. 0/1279 useless extension candidates. Maximal degree in co-relation 1898. Up to 52 conditions per place. [2023-08-27 03:05:19,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 1208 places, 1308 transitions, 3341 flow [2023-08-27 03:05:19,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1208 places, 1308 transitions, 3341 flow [2023-08-27 03:05:19,500 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:05:19,500 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1208 places, 1308 transitions, 3341 flow [2023-08-27 03:05:19,500 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1208 places, 1308 transitions, 3341 flow [2023-08-27 03:05:19,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1208 places, 1308 transitions, 3341 flow [2023-08-27 03:05:20,228 INFO L124 PetriNetUnfolderBase]: 176/1606 cut-off events. [2023-08-27 03:05:20,228 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-27 03:05:20,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2007 conditions, 1606 events. 176/1606 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6763 event pairs, 0 based on Foata normal form. 0/1279 useless extension candidates. Maximal degree in co-relation 1898. Up to 52 conditions per place. [2023-08-27 03:05:20,553 INFO L119 LiptonReduction]: Number of co-enabled transitions 1562500 [2023-08-27 03:05:39,615 INFO L134 LiptonReduction]: Checked pairs total: 2685730 [2023-08-27 03:05:39,615 INFO L136 LiptonReduction]: Total number of compositions: 1371 [2023-08-27 03:05:39,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:05:39,617 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:05:39,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:05:39,695 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:05:39,695 INFO L124 PetriNetUnfolderBase]: 48/470 cut-off events. [2023-08-27 03:05:39,695 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-27 03:05:39,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:05:39,695 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] [2023-08-27 03:05:39,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:05:39,696 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:05:39,696 INFO L85 PathProgramCache]: Analyzing trace with hash -948410542, now seen corresponding path program 1 times [2023-08-27 03:05:39,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:05:39,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654316730] [2023-08-27 03:05:39,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:05:39,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:05:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:05:39,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:05:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:05:39,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:05:39,767 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:05:39,767 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:05:39,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-27 03:05:39,767 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:05:39,768 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:05:39,768 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:05:39,768 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-08-27 03:05:39,867 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:05:39,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1255 places, 1359 transitions, 3498 flow [2023-08-27 03:05:40,699 INFO L124 PetriNetUnfolderBase]: 183/1669 cut-off events. [2023-08-27 03:05:40,699 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-27 03:05:40,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 1669 events. 183/1669 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7040 event pairs, 0 based on Foata normal form. 0/1329 useless extension candidates. Maximal degree in co-relation 1989. Up to 54 conditions per place. [2023-08-27 03:05:40,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 1255 places, 1359 transitions, 3498 flow [2023-08-27 03:05:40,826 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1255 places, 1359 transitions, 3498 flow [2023-08-27 03:05:40,826 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:05:40,826 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1255 places, 1359 transitions, 3498 flow [2023-08-27 03:05:40,826 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1255 places, 1359 transitions, 3498 flow [2023-08-27 03:05:40,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1255 places, 1359 transitions, 3498 flow [2023-08-27 03:05:41,628 INFO L124 PetriNetUnfolderBase]: 183/1669 cut-off events. [2023-08-27 03:05:41,628 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-27 03:05:41,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 1669 events. 183/1669 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7040 event pairs, 0 based on Foata normal form. 0/1329 useless extension candidates. Maximal degree in co-relation 1989. Up to 54 conditions per place. [2023-08-27 03:05:41,985 INFO L119 LiptonReduction]: Number of co-enabled transitions 1691300 [2023-08-27 03:06:01,828 INFO L134 LiptonReduction]: Checked pairs total: 2892389 [2023-08-27 03:06:01,828 INFO L136 LiptonReduction]: Total number of compositions: 1424 [2023-08-27 03:06:01,830 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:06:01,830 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:06:01,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:06:01,911 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:06:01,911 INFO L124 PetriNetUnfolderBase]: 50/489 cut-off events. [2023-08-27 03:06:01,912 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-27 03:06:01,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:06:01,912 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] [2023-08-27 03:06:01,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:06:01,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:06:01,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1683038010, now seen corresponding path program 1 times [2023-08-27 03:06:01,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:06:01,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819284954] [2023-08-27 03:06:01,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:06:01,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:06:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:06:01,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:06:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:06:01,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:06:01,983 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:06:01,984 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:06:01,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-27 03:06:01,984 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:06:01,984 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:06:01,984 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:06:01,984 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-08-27 03:06:02,133 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:06:02,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1302 places, 1410 transitions, 3657 flow [2023-08-27 03:06:03,034 INFO L124 PetriNetUnfolderBase]: 190/1732 cut-off events. [2023-08-27 03:06:03,034 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-27 03:06:03,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2192 conditions, 1732 events. 190/1732 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7339 event pairs, 0 based on Foata normal form. 0/1379 useless extension candidates. Maximal degree in co-relation 2081. Up to 56 conditions per place. [2023-08-27 03:06:03,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 1302 places, 1410 transitions, 3657 flow [2023-08-27 03:06:03,184 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1302 places, 1410 transitions, 3657 flow [2023-08-27 03:06:03,185 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:06:03,185 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1302 places, 1410 transitions, 3657 flow [2023-08-27 03:06:03,185 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1302 places, 1410 transitions, 3657 flow [2023-08-27 03:06:03,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1302 places, 1410 transitions, 3657 flow [2023-08-27 03:06:04,058 INFO L124 PetriNetUnfolderBase]: 190/1732 cut-off events. [2023-08-27 03:06:04,058 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-27 03:06:04,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2192 conditions, 1732 events. 190/1732 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7339 event pairs, 0 based on Foata normal form. 0/1379 useless extension candidates. Maximal degree in co-relation 2081. Up to 56 conditions per place. [2023-08-27 03:06:04,417 INFO L119 LiptonReduction]: Number of co-enabled transitions 1825200 [2023-08-27 03:06:25,126 INFO L134 LiptonReduction]: Checked pairs total: 3165717 [2023-08-27 03:06:25,126 INFO L136 LiptonReduction]: Total number of compositions: 1479 [2023-08-27 03:06:25,127 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:06:25,128 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:06:25,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:06:25,213 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:06:25,214 INFO L124 PetriNetUnfolderBase]: 52/508 cut-off events. [2023-08-27 03:06:25,214 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-27 03:06:25,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:06:25,214 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] [2023-08-27 03:06:25,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:06:25,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:06:25,214 INFO L85 PathProgramCache]: Analyzing trace with hash 587094711, now seen corresponding path program 1 times [2023-08-27 03:06:25,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:06:25,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469500954] [2023-08-27 03:06:25,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:06:25,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:06:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:06:25,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:06:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:06:25,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:06:25,285 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:06:25,285 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:06:25,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-27 03:06:25,285 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:06:25,286 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:06:25,286 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:06:25,286 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-08-27 03:06:25,407 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:06:25,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1349 places, 1461 transitions, 3818 flow [2023-08-27 03:06:26,265 INFO L124 PetriNetUnfolderBase]: 197/1795 cut-off events. [2023-08-27 03:06:26,265 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-27 03:06:26,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2286 conditions, 1795 events. 197/1795 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7657 event pairs, 0 based on Foata normal form. 0/1429 useless extension candidates. Maximal degree in co-relation 2174. Up to 58 conditions per place. [2023-08-27 03:06:26,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 1349 places, 1461 transitions, 3818 flow [2023-08-27 03:06:26,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1349 places, 1461 transitions, 3818 flow [2023-08-27 03:06:26,401 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:06:26,401 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1349 places, 1461 transitions, 3818 flow [2023-08-27 03:06:26,401 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1349 places, 1461 transitions, 3818 flow [2023-08-27 03:06:26,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1349 places, 1461 transitions, 3818 flow [2023-08-27 03:06:27,335 INFO L124 PetriNetUnfolderBase]: 197/1795 cut-off events. [2023-08-27 03:06:27,336 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-27 03:06:27,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2286 conditions, 1795 events. 197/1795 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7657 event pairs, 0 based on Foata normal form. 0/1429 useless extension candidates. Maximal degree in co-relation 2174. Up to 58 conditions per place. [2023-08-27 03:06:27,715 INFO L119 LiptonReduction]: Number of co-enabled transitions 1964200 [2023-08-27 03:06:49,439 INFO L134 LiptonReduction]: Checked pairs total: 3327683 [2023-08-27 03:06:49,439 INFO L136 LiptonReduction]: Total number of compositions: 1537 [2023-08-27 03:06:49,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:06:49,441 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:06:49,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:06:49,541 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:06:49,542 INFO L124 PetriNetUnfolderBase]: 54/527 cut-off events. [2023-08-27 03:06:49,542 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-27 03:06:49,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:06:49,542 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] [2023-08-27 03:06:49,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:06:49,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:06:49,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1875634956, now seen corresponding path program 1 times [2023-08-27 03:06:49,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:06:49,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156570728] [2023-08-27 03:06:49,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:06:49,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:06:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:06:49,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:06:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:06:49,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:06:49,617 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:06:49,618 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:06:49,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-27 03:06:49,618 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:06:49,618 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:06:49,618 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:06:49,618 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-08-27 03:06:49,729 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:06:49,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1396 places, 1512 transitions, 3981 flow [2023-08-27 03:06:50,665 INFO L124 PetriNetUnfolderBase]: 204/1858 cut-off events. [2023-08-27 03:06:50,665 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-27 03:06:50,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 1858 events. 204/1858 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7909 event pairs, 0 based on Foata normal form. 0/1479 useless extension candidates. Maximal degree in co-relation 2268. Up to 60 conditions per place. [2023-08-27 03:06:50,772 INFO L82 GeneralOperation]: Start removeDead. Operand has 1396 places, 1512 transitions, 3981 flow [2023-08-27 03:06:50,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1396 places, 1512 transitions, 3981 flow [2023-08-27 03:06:50,811 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:06:50,811 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1396 places, 1512 transitions, 3981 flow [2023-08-27 03:06:50,811 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1396 places, 1512 transitions, 3981 flow [2023-08-27 03:06:50,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1396 places, 1512 transitions, 3981 flow [2023-08-27 03:06:51,745 INFO L124 PetriNetUnfolderBase]: 204/1858 cut-off events. [2023-08-27 03:06:51,745 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-27 03:06:51,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 1858 events. 204/1858 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7909 event pairs, 0 based on Foata normal form. 0/1479 useless extension candidates. Maximal degree in co-relation 2268. Up to 60 conditions per place. [2023-08-27 03:06:52,391 INFO L119 LiptonReduction]: Number of co-enabled transitions 2108300 [2023-08-27 03:07:14,742 INFO L134 LiptonReduction]: Checked pairs total: 3562281 [2023-08-27 03:07:14,742 INFO L136 LiptonReduction]: Total number of compositions: 1585 [2023-08-27 03:07:14,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:07:14,745 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:07:14,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:07:14,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:07:14,846 INFO L124 PetriNetUnfolderBase]: 56/546 cut-off events. [2023-08-27 03:07:14,846 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-27 03:07:14,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:07:14,847 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] [2023-08-27 03:07:14,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:07:14,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:07:14,847 INFO L85 PathProgramCache]: Analyzing trace with hash -635821722, now seen corresponding path program 1 times [2023-08-27 03:07:14,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:07:14,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569885375] [2023-08-27 03:07:14,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:07:14,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:07:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:07:14,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:07:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:07:14,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:07:14,922 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:07:14,922 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:07:14,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-27 03:07:14,923 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:07:14,923 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:07:14,923 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:07:14,923 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-08-27 03:07:15,042 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:07:15,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1443 places, 1563 transitions, 4146 flow [2023-08-27 03:07:16,090 INFO L124 PetriNetUnfolderBase]: 211/1921 cut-off events. [2023-08-27 03:07:16,090 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-27 03:07:16,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2477 conditions, 1921 events. 211/1921 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8203 event pairs, 0 based on Foata normal form. 0/1529 useless extension candidates. Maximal degree in co-relation 2363. Up to 62 conditions per place. [2023-08-27 03:07:16,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 1443 places, 1563 transitions, 4146 flow [2023-08-27 03:07:16,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1443 places, 1563 transitions, 4146 flow [2023-08-27 03:07:16,233 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:07:16,233 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1443 places, 1563 transitions, 4146 flow [2023-08-27 03:07:16,233 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1443 places, 1563 transitions, 4146 flow [2023-08-27 03:07:16,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1443 places, 1563 transitions, 4146 flow [2023-08-27 03:07:17,261 INFO L124 PetriNetUnfolderBase]: 211/1921 cut-off events. [2023-08-27 03:07:17,261 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-27 03:07:17,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2477 conditions, 1921 events. 211/1921 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8203 event pairs, 0 based on Foata normal form. 0/1529 useless extension candidates. Maximal degree in co-relation 2363. Up to 62 conditions per place. [2023-08-27 03:07:17,954 INFO L119 LiptonReduction]: Number of co-enabled transitions 2257500 [2023-08-27 03:07:41,269 INFO L134 LiptonReduction]: Checked pairs total: 3842922 [2023-08-27 03:07:41,269 INFO L136 LiptonReduction]: Total number of compositions: 1643 [2023-08-27 03:07:41,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:07:41,271 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:07:41,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:07:41,407 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:07:41,408 INFO L124 PetriNetUnfolderBase]: 58/565 cut-off events. [2023-08-27 03:07:41,408 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-27 03:07:41,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:07:41,408 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] [2023-08-27 03:07:41,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:07:41,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:07:41,408 INFO L85 PathProgramCache]: Analyzing trace with hash 324935192, now seen corresponding path program 1 times [2023-08-27 03:07:41,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:07:41,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38227689] [2023-08-27 03:07:41,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:07:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:07:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:07:41,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:07:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:07:41,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:07:41,491 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:07:41,491 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:07:41,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-27 03:07:41,491 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:07:41,491 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:07:41,491 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:07:41,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-08-27 03:07:41,609 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:07:41,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1490 places, 1614 transitions, 4313 flow [2023-08-27 03:07:42,809 INFO L124 PetriNetUnfolderBase]: 218/1984 cut-off events. [2023-08-27 03:07:42,809 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-27 03:07:42,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2574 conditions, 1984 events. 218/1984 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8478 event pairs, 0 based on Foata normal form. 0/1579 useless extension candidates. Maximal degree in co-relation 2459. Up to 64 conditions per place. [2023-08-27 03:07:42,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 1490 places, 1614 transitions, 4313 flow [2023-08-27 03:07:42,983 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1490 places, 1614 transitions, 4313 flow [2023-08-27 03:07:42,983 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:07:42,983 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1490 places, 1614 transitions, 4313 flow [2023-08-27 03:07:42,984 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1490 places, 1614 transitions, 4313 flow [2023-08-27 03:07:42,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1490 places, 1614 transitions, 4313 flow [2023-08-27 03:07:44,146 INFO L124 PetriNetUnfolderBase]: 218/1984 cut-off events. [2023-08-27 03:07:44,146 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-27 03:07:44,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2574 conditions, 1984 events. 218/1984 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8478 event pairs, 0 based on Foata normal form. 0/1579 useless extension candidates. Maximal degree in co-relation 2459. Up to 64 conditions per place. [2023-08-27 03:07:44,998 INFO L119 LiptonReduction]: Number of co-enabled transitions 2411800 [2023-08-27 03:08:09,294 INFO L134 LiptonReduction]: Checked pairs total: 4163049 [2023-08-27 03:08:09,294 INFO L136 LiptonReduction]: Total number of compositions: 1707 [2023-08-27 03:08:09,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:08:09,296 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:08:09,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:08:09,416 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:08:09,417 INFO L124 PetriNetUnfolderBase]: 60/584 cut-off events. [2023-08-27 03:08:09,417 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-27 03:08:09,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:08:09,417 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] [2023-08-27 03:08:09,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:08:09,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:08:09,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1484516936, now seen corresponding path program 1 times [2023-08-27 03:08:09,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:08:09,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534008905] [2023-08-27 03:08:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:08:09,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:08:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:08:09,456 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:08:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:08:09,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:08:09,501 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:08:09,501 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:08:09,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-27 03:08:09,502 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:08:09,502 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:08:09,502 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:08:09,502 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-08-27 03:08:09,622 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:08:09,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1537 places, 1665 transitions, 4482 flow [2023-08-27 03:08:10,904 INFO L124 PetriNetUnfolderBase]: 225/2047 cut-off events. [2023-08-27 03:08:10,904 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-27 03:08:11,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2672 conditions, 2047 events. 225/2047 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8777 event pairs, 0 based on Foata normal form. 0/1629 useless extension candidates. Maximal degree in co-relation 2556. Up to 66 conditions per place. [2023-08-27 03:08:11,062 INFO L82 GeneralOperation]: Start removeDead. Operand has 1537 places, 1665 transitions, 4482 flow [2023-08-27 03:08:11,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1537 places, 1665 transitions, 4482 flow [2023-08-27 03:08:11,130 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:08:11,130 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1537 places, 1665 transitions, 4482 flow [2023-08-27 03:08:11,130 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1537 places, 1665 transitions, 4482 flow [2023-08-27 03:08:11,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1537 places, 1665 transitions, 4482 flow [2023-08-27 03:08:12,406 INFO L124 PetriNetUnfolderBase]: 225/2047 cut-off events. [2023-08-27 03:08:12,406 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-27 03:08:12,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2672 conditions, 2047 events. 225/2047 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8777 event pairs, 0 based on Foata normal form. 0/1629 useless extension candidates. Maximal degree in co-relation 2556. Up to 66 conditions per place. [2023-08-27 03:08:13,088 INFO L119 LiptonReduction]: Number of co-enabled transitions 2571200 [2023-08-27 03:08:39,031 INFO L134 LiptonReduction]: Checked pairs total: 4401749 [2023-08-27 03:08:39,031 INFO L136 LiptonReduction]: Total number of compositions: 1751 [2023-08-27 03:08:39,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:08:39,033 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:08:39,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:08:39,155 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:08:39,155 INFO L124 PetriNetUnfolderBase]: 62/603 cut-off events. [2023-08-27 03:08:39,155 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-27 03:08:39,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:08:39,155 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] [2023-08-27 03:08:39,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:08:39,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:08:39,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1193188317, now seen corresponding path program 1 times [2023-08-27 03:08:39,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:08:39,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804285767] [2023-08-27 03:08:39,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:08:39,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:08:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:08:39,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:08:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:08:39,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:08:39,251 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:08:39,251 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:08:39,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-27 03:08:39,252 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:08:39,252 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:08:39,252 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:08:39,252 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-08-27 03:08:39,372 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:08:39,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1584 places, 1716 transitions, 4653 flow [2023-08-27 03:08:40,708 INFO L124 PetriNetUnfolderBase]: 232/2110 cut-off events. [2023-08-27 03:08:40,708 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-27 03:08:40,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 2110 events. 232/2110 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9138 event pairs, 0 based on Foata normal form. 0/1679 useless extension candidates. Maximal degree in co-relation 2654. Up to 68 conditions per place. [2023-08-27 03:08:40,873 INFO L82 GeneralOperation]: Start removeDead. Operand has 1584 places, 1716 transitions, 4653 flow [2023-08-27 03:08:40,931 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1584 places, 1716 transitions, 4653 flow [2023-08-27 03:08:40,931 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:08:40,931 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1584 places, 1716 transitions, 4653 flow [2023-08-27 03:08:40,931 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1584 places, 1716 transitions, 4653 flow [2023-08-27 03:08:40,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1584 places, 1716 transitions, 4653 flow [2023-08-27 03:08:42,244 INFO L124 PetriNetUnfolderBase]: 232/2110 cut-off events. [2023-08-27 03:08:42,244 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-27 03:08:42,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 2110 events. 232/2110 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9138 event pairs, 0 based on Foata normal form. 0/1679 useless extension candidates. Maximal degree in co-relation 2654. Up to 68 conditions per place. [2023-08-27 03:08:43,017 INFO L119 LiptonReduction]: Number of co-enabled transitions 2735700 [2023-08-27 03:09:09,379 INFO L134 LiptonReduction]: Checked pairs total: 4722797 [2023-08-27 03:09:09,379 INFO L136 LiptonReduction]: Total number of compositions: 1807 [2023-08-27 03:09:09,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:09:09,381 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:09:09,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:09:09,510 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:09:09,510 INFO L124 PetriNetUnfolderBase]: 64/622 cut-off events. [2023-08-27 03:09:09,510 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-27 03:09:09,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:09:09,510 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] [2023-08-27 03:09:09,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:09:09,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:09:09,511 INFO L85 PathProgramCache]: Analyzing trace with hash -625579239, now seen corresponding path program 1 times [2023-08-27 03:09:09,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:09:09,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765211824] [2023-08-27 03:09:09,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:09:09,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:09:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:09:09,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:09:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:09:09,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:09:09,606 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:09:09,606 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:09:09,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-27 03:09:09,607 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:09:09,607 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:09:09,607 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:09:09,607 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2023-08-27 03:09:09,741 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:09:09,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1631 places, 1767 transitions, 4826 flow [2023-08-27 03:09:11,255 INFO L124 PetriNetUnfolderBase]: 239/2173 cut-off events. [2023-08-27 03:09:11,255 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-27 03:09:11,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 2173 events. 239/2173 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9264 event pairs, 0 based on Foata normal form. 0/1729 useless extension candidates. Maximal degree in co-relation 2753. Up to 70 conditions per place. [2023-08-27 03:09:11,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 1631 places, 1767 transitions, 4826 flow [2023-08-27 03:09:11,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1631 places, 1767 transitions, 4826 flow [2023-08-27 03:09:11,478 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:09:11,478 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1631 places, 1767 transitions, 4826 flow [2023-08-27 03:09:11,478 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1631 places, 1767 transitions, 4826 flow [2023-08-27 03:09:11,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1631 places, 1767 transitions, 4826 flow [2023-08-27 03:09:12,943 INFO L124 PetriNetUnfolderBase]: 239/2173 cut-off events. [2023-08-27 03:09:12,943 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-27 03:09:13,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 2173 events. 239/2173 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9264 event pairs, 0 based on Foata normal form. 0/1729 useless extension candidates. Maximal degree in co-relation 2753. Up to 70 conditions per place. [2023-08-27 03:09:13,709 INFO L119 LiptonReduction]: Number of co-enabled transitions 2905300 [2023-08-27 03:09:41,733 INFO L134 LiptonReduction]: Checked pairs total: 5071233 [2023-08-27 03:09:41,733 INFO L136 LiptonReduction]: Total number of compositions: 1846 [2023-08-27 03:09:41,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:09:41,734 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:09:41,735 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:09:41,902 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:09:41,902 INFO L124 PetriNetUnfolderBase]: 67/644 cut-off events. [2023-08-27 03:09:41,902 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-27 03:09:41,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:09:41,902 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] [2023-08-27 03:09:41,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:09:41,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:09:41,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1286471643, now seen corresponding path program 1 times [2023-08-27 03:09:41,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:09:41,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362311085] [2023-08-27 03:09:41,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:09:41,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:09:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:09:41,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:09:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:09:42,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:09:42,035 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:09:42,035 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:09:42,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-27 03:09:42,035 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:09:42,035 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:09:42,036 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:09:42,036 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2023-08-27 03:09:42,172 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:09:42,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1678 places, 1818 transitions, 5001 flow [2023-08-27 03:09:44,080 INFO L124 PetriNetUnfolderBase]: 246/2236 cut-off events. [2023-08-27 03:09:44,081 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-27 03:09:44,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2972 conditions, 2236 events. 246/2236 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9588 event pairs, 0 based on Foata normal form. 0/1779 useless extension candidates. Maximal degree in co-relation 2853. Up to 72 conditions per place. [2023-08-27 03:09:44,198 INFO L82 GeneralOperation]: Start removeDead. Operand has 1678 places, 1818 transitions, 5001 flow [2023-08-27 03:09:44,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1678 places, 1818 transitions, 5001 flow [2023-08-27 03:09:44,249 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:09:44,249 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1678 places, 1818 transitions, 5001 flow [2023-08-27 03:09:44,249 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1678 places, 1818 transitions, 5001 flow [2023-08-27 03:09:44,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1678 places, 1818 transitions, 5001 flow [2023-08-27 03:09:46,044 INFO L124 PetriNetUnfolderBase]: 246/2236 cut-off events. [2023-08-27 03:09:46,044 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-27 03:09:46,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2972 conditions, 2236 events. 246/2236 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9588 event pairs, 0 based on Foata normal form. 0/1779 useless extension candidates. Maximal degree in co-relation 2853. Up to 72 conditions per place. [2023-08-27 03:09:46,813 INFO L119 LiptonReduction]: Number of co-enabled transitions 3080000 [2023-08-27 03:10:16,372 INFO L134 LiptonReduction]: Checked pairs total: 5420072 [2023-08-27 03:10:16,372 INFO L136 LiptonReduction]: Total number of compositions: 1938 [2023-08-27 03:10:16,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:10:16,374 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:10:16,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:10:16,590 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:10:16,590 INFO L124 PetriNetUnfolderBase]: 69/663 cut-off events. [2023-08-27 03:10:16,590 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-27 03:10:16,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:10:16,590 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] [2023-08-27 03:10:16,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:10:16,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:10:16,591 INFO L85 PathProgramCache]: Analyzing trace with hash -10225060, now seen corresponding path program 1 times [2023-08-27 03:10:16,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:10:16,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657315071] [2023-08-27 03:10:16,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:10:16,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:10:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:10:16,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:10:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:10:16,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:10:16,705 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:10:16,705 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:10:16,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-27 03:10:16,705 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:10:16,706 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:10:16,706 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:10:16,706 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2023-08-27 03:10:16,847 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:10:16,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1725 places, 1869 transitions, 5178 flow [2023-08-27 03:10:18,758 INFO L124 PetriNetUnfolderBase]: 253/2299 cut-off events. [2023-08-27 03:10:18,758 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-27 03:10:18,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3074 conditions, 2299 events. 253/2299 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9855 event pairs, 0 based on Foata normal form. 0/1829 useless extension candidates. Maximal degree in co-relation 2954. Up to 74 conditions per place. [2023-08-27 03:10:18,877 INFO L82 GeneralOperation]: Start removeDead. Operand has 1725 places, 1869 transitions, 5178 flow [2023-08-27 03:10:18,933 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1725 places, 1869 transitions, 5178 flow [2023-08-27 03:10:18,934 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:10:18,934 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1725 places, 1869 transitions, 5178 flow [2023-08-27 03:10:18,934 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1725 places, 1869 transitions, 5178 flow [2023-08-27 03:10:18,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1725 places, 1869 transitions, 5178 flow [2023-08-27 03:10:20,677 INFO L124 PetriNetUnfolderBase]: 253/2299 cut-off events. [2023-08-27 03:10:20,677 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-27 03:10:20,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3074 conditions, 2299 events. 253/2299 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9855 event pairs, 0 based on Foata normal form. 0/1829 useless extension candidates. Maximal degree in co-relation 2954. Up to 74 conditions per place. [2023-08-27 03:10:21,541 INFO L119 LiptonReduction]: Number of co-enabled transitions 3259800 [2023-08-27 03:10:51,213 INFO L134 LiptonReduction]: Checked pairs total: 5633453 [2023-08-27 03:10:51,213 INFO L136 LiptonReduction]: Total number of compositions: 1951 [2023-08-27 03:10:51,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:10:51,215 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:10:51,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:10:51,371 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:10:51,371 INFO L124 PetriNetUnfolderBase]: 71/682 cut-off events. [2023-08-27 03:10:51,371 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-27 03:10:51,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:10:51,371 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] [2023-08-27 03:10:51,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:10:51,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:10:51,372 INFO L85 PathProgramCache]: Analyzing trace with hash 854931918, now seen corresponding path program 1 times [2023-08-27 03:10:51,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:10:51,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051520775] [2023-08-27 03:10:51,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:10:51,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:10:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:10:51,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:10:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:10:51,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:10:51,491 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:10:51,491 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:10:51,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-27 03:10:51,492 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:10:51,492 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:10:51,492 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:10:51,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2023-08-27 03:10:51,621 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:10:51,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1772 places, 1920 transitions, 5357 flow [2023-08-27 03:10:53,606 INFO L124 PetriNetUnfolderBase]: 260/2362 cut-off events. [2023-08-27 03:10:53,606 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-27 03:10:53,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3177 conditions, 2362 events. 260/2362 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 10125 event pairs, 0 based on Foata normal form. 0/1879 useless extension candidates. Maximal degree in co-relation 3056. Up to 76 conditions per place. [2023-08-27 03:10:53,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 1772 places, 1920 transitions, 5357 flow [2023-08-27 03:10:53,880 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1772 places, 1920 transitions, 5357 flow [2023-08-27 03:10:53,880 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:10:53,880 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1772 places, 1920 transitions, 5357 flow [2023-08-27 03:10:53,881 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1772 places, 1920 transitions, 5357 flow [2023-08-27 03:10:53,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1772 places, 1920 transitions, 5357 flow [2023-08-27 03:10:55,684 INFO L124 PetriNetUnfolderBase]: 260/2362 cut-off events. [2023-08-27 03:10:55,684 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-27 03:10:55,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3177 conditions, 2362 events. 260/2362 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 10125 event pairs, 0 based on Foata normal form. 0/1879 useless extension candidates. Maximal degree in co-relation 3056. Up to 76 conditions per place. [2023-08-27 03:10:56,669 INFO L119 LiptonReduction]: Number of co-enabled transitions 3444700 [2023-08-27 03:11:27,730 INFO L134 LiptonReduction]: Checked pairs total: 5997549 [2023-08-27 03:11:27,731 INFO L136 LiptonReduction]: Total number of compositions: 2028 [2023-08-27 03:11:27,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:11:27,732 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:11:27,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:11:27,896 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:11:27,896 INFO L124 PetriNetUnfolderBase]: 72/698 cut-off events. [2023-08-27 03:11:27,896 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-27 03:11:27,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:11:27,896 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] [2023-08-27 03:11:27,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:11:27,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:11:27,897 INFO L85 PathProgramCache]: Analyzing trace with hash 641312881, now seen corresponding path program 1 times [2023-08-27 03:11:27,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:11:27,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843352799] [2023-08-27 03:11:27,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:11:27,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:11:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:11:27,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:11:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:11:28,013 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:11:28,013 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:11:28,013 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:11:28,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-27 03:11:28,014 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:11:28,014 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:11:28,014 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:11:28,014 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2023-08-27 03:11:28,160 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:11:28,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1819 places, 1971 transitions, 5538 flow [2023-08-27 03:11:30,374 INFO L124 PetriNetUnfolderBase]: 267/2425 cut-off events. [2023-08-27 03:11:30,374 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-27 03:11:30,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3281 conditions, 2425 events. 267/2425 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10436 event pairs, 0 based on Foata normal form. 0/1929 useless extension candidates. Maximal degree in co-relation 3159. Up to 78 conditions per place. [2023-08-27 03:11:30,516 INFO L82 GeneralOperation]: Start removeDead. Operand has 1819 places, 1971 transitions, 5538 flow [2023-08-27 03:11:30,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1819 places, 1971 transitions, 5538 flow [2023-08-27 03:11:30,560 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:11:30,560 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1819 places, 1971 transitions, 5538 flow [2023-08-27 03:11:30,560 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1819 places, 1971 transitions, 5538 flow [2023-08-27 03:11:30,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1819 places, 1971 transitions, 5538 flow [2023-08-27 03:11:33,460 INFO L124 PetriNetUnfolderBase]: 267/2425 cut-off events. [2023-08-27 03:11:33,461 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-27 03:11:33,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3281 conditions, 2425 events. 267/2425 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10436 event pairs, 0 based on Foata normal form. 0/1929 useless extension candidates. Maximal degree in co-relation 3159. Up to 78 conditions per place. [2023-08-27 03:11:34,479 INFO L119 LiptonReduction]: Number of co-enabled transitions 3634700 [2023-08-27 03:12:06,244 INFO L134 LiptonReduction]: Checked pairs total: 6591894 [2023-08-27 03:12:06,244 INFO L136 LiptonReduction]: Total number of compositions: 2077 [2023-08-27 03:12:06,246 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:12:06,246 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;@76543ced, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:12:06,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:12:06,425 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:12:06,425 INFO L124 PetriNetUnfolderBase]: 75/720 cut-off events. [2023-08-27 03:12:06,425 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-27 03:12:06,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:12:06,425 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] [2023-08-27 03:12:06,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:12:06,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:12:06,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1384524910, now seen corresponding path program 1 times [2023-08-27 03:12:06,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:12:06,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862818692] [2023-08-27 03:12:06,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:12:06,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:12:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:12:06,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:12:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:12:06,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:12:06,585 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:12:06,585 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:12:06,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-27 03:12:06,585 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:12:06,585 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:12:06,585 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:12:06,586 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2023-08-27 03:12:06,734 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:12:06,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1866 places, 2022 transitions, 5721 flow [2023-08-27 03:12:08,915 INFO L124 PetriNetUnfolderBase]: 274/2488 cut-off events. [2023-08-27 03:12:08,915 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-27 03:12:09,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3386 conditions, 2488 events. 274/2488 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 10682 event pairs, 0 based on Foata normal form. 0/1979 useless extension candidates. Maximal degree in co-relation 3263. Up to 80 conditions per place. [2023-08-27 03:12:09,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 1866 places, 2022 transitions, 5721 flow [2023-08-27 03:12:09,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1866 places, 2022 transitions, 5721 flow [2023-08-27 03:12:09,102 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:12:09,102 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1866 places, 2022 transitions, 5721 flow [2023-08-27 03:12:09,102 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1866 places, 2022 transitions, 5721 flow [2023-08-27 03:12:09,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1866 places, 2022 transitions, 5721 flow [2023-08-27 03:12:11,186 INFO L124 PetriNetUnfolderBase]: 274/2488 cut-off events. [2023-08-27 03:12:11,186 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-27 03:12:11,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3386 conditions, 2488 events. 274/2488 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 10682 event pairs, 0 based on Foata normal form. 0/1979 useless extension candidates. Maximal degree in co-relation 3263. Up to 80 conditions per place. [2023-08-27 03:12:12,153 INFO L119 LiptonReduction]: Number of co-enabled transitions 3829800 Received shutdown request... [2023-08-27 03:12:37,817 WARN L266 SmtUtils]: Removed 3 from assertion stack [2023-08-27 03:12:37,818 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-08-27 03:12:37,818 INFO L158 Benchmark]: Toolchain (without parser) took 690900.28ms. Allocated memory was 333.4MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 308.1MB in the beginning and 5.3GB in the end (delta: -5.0GB). Peak memory consumption was 3.1GB. Max. memory is 16.0GB. [2023-08-27 03:12:37,819 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 333.4MB. Free memory was 310.8MB in the beginning and 310.7MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 03:12:37,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.41ms. Allocated memory is still 333.4MB. Free memory was 308.1MB in the beginning and 288.5MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 03:12:37,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.07ms. Allocated memory is still 333.4MB. Free memory was 288.5MB in the beginning and 286.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:12:37,819 INFO L158 Benchmark]: Boogie Preprocessor took 36.38ms. Allocated memory is still 333.4MB. Free memory was 286.4MB in the beginning and 285.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:12:37,819 INFO L158 Benchmark]: RCFGBuilder took 379.28ms. Allocated memory is still 333.4MB. Free memory was 285.0MB in the beginning and 269.0MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 03:12:37,820 INFO L158 Benchmark]: TraceAbstraction took 689950.82ms. Allocated memory was 333.4MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 268.3MB in the beginning and 5.3GB in the end (delta: -5.0GB). Peak memory consumption was 3.1GB. Max. memory is 16.0GB. [2023-08-27 03:12:37,821 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 333.4MB. Free memory was 310.8MB in the beginning and 310.7MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 466.41ms. Allocated memory is still 333.4MB. Free memory was 308.1MB in the beginning and 288.5MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.07ms. Allocated memory is still 333.4MB. Free memory was 288.5MB in the beginning and 286.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 36.38ms. Allocated memory is still 333.4MB. Free memory was 286.4MB in the beginning and 285.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 379.28ms. Allocated memory is still 333.4MB. Free memory was 285.0MB in the beginning and 269.0MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 689950.82ms. Allocated memory was 333.4MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 268.3MB in the beginning and 5.3GB in the end (delta: -5.0GB). Peak memory consumption was 3.1GB. 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: 3.6s, 80 PlacesBefore, 16 PlacesAfterwards, 84 TransitionsBefore, 14 TransitionsAfterwards, 1300 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 6 ChoiceCompositions, 99 TotalNumberOfCompositions, 1488 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1263, independent: 1240, independent conditional: 0, independent unconditional: 1240, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 704, independent: 697, independent conditional: 0, independent unconditional: 697, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1263, independent: 543, independent conditional: 0, independent unconditional: 543, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 704, unknown conditional: 0, unknown unconditional: 704] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 127 PlacesBefore, 37 PlacesAfterwards, 135 TransitionsBefore, 36 TransitionsAfterwards, 7700 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 9 ChoiceCompositions, 135 TotalNumberOfCompositions, 12376 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9100, independent: 8912, independent conditional: 0, independent unconditional: 8912, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4454, independent: 4428, independent conditional: 0, independent unconditional: 4428, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9100, independent: 4484, independent conditional: 0, independent unconditional: 4484, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 4454, unknown conditional: 0, unknown unconditional: 4454] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 146, Positive conditional cache size: 0, Positive unconditional cache size: 146, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 174 PlacesBefore, 52 PlacesAfterwards, 186 TransitionsBefore, 51 TransitionsAfterwards, 19200 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 124 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 34 ConcurrentYvCompositions, 13 ChoiceCompositions, 190 TotalNumberOfCompositions, 31944 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21339, independent: 21086, independent conditional: 0, independent unconditional: 21086, dependent: 253, dependent conditional: 0, dependent unconditional: 253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11178, independent: 11137, independent conditional: 0, independent unconditional: 11137, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21339, independent: 9949, independent conditional: 0, independent unconditional: 9949, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 11178, unknown conditional: 0, unknown unconditional: 11178] , Statistics on independence cache: Total cache size (in pairs): 345, Positive cache size: 327, Positive conditional cache size: 0, Positive unconditional cache size: 327, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 221 PlacesBefore, 67 PlacesAfterwards, 237 TransitionsBefore, 66 TransitionsAfterwards, 35800 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 159 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 41 ConcurrentYvCompositions, 17 ChoiceCompositions, 236 TotalNumberOfCompositions, 56351 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33774, independent: 33450, independent conditional: 0, independent unconditional: 33450, dependent: 324, dependent conditional: 0, dependent unconditional: 324, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 19937, independent: 19869, independent conditional: 0, independent unconditional: 19869, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 33774, independent: 13581, independent conditional: 0, independent unconditional: 13581, dependent: 256, dependent conditional: 0, dependent unconditional: 256, unknown: 19937, unknown conditional: 0, unknown unconditional: 19937] , Statistics on independence cache: Total cache size (in pairs): 609, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 268 PlacesBefore, 82 PlacesAfterwards, 288 TransitionsBefore, 81 TransitionsAfterwards, 57500 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 199 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 56 ConcurrentYvCompositions, 21 ChoiceCompositions, 295 TotalNumberOfCompositions, 95797 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60227, independent: 59768, independent conditional: 0, independent unconditional: 59768, dependent: 459, dependent conditional: 0, dependent unconditional: 459, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 32935, independent: 32859, independent conditional: 0, independent unconditional: 32859, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 60227, independent: 26909, independent conditional: 0, independent unconditional: 26909, dependent: 383, dependent conditional: 0, dependent unconditional: 383, unknown: 32935, unknown conditional: 0, unknown unconditional: 32935] , Statistics on independence cache: Total cache size (in pairs): 908, Positive cache size: 875, Positive conditional cache size: 0, Positive unconditional cache size: 875, 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: 5.2s, 315 PlacesBefore, 97 PlacesAfterwards, 339 TransitionsBefore, 96 TransitionsAfterwards, 84300 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 242 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 71 ConcurrentYvCompositions, 25 ChoiceCompositions, 357 TotalNumberOfCompositions, 145662 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 74302, independent: 73745, independent conditional: 0, independent unconditional: 73745, dependent: 557, dependent conditional: 0, dependent unconditional: 557, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 46794, independent: 46726, independent conditional: 0, independent unconditional: 46726, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 74302, independent: 27019, independent conditional: 0, independent unconditional: 27019, dependent: 489, dependent conditional: 0, dependent unconditional: 489, unknown: 46794, unknown conditional: 0, unknown unconditional: 46794] , Statistics on independence cache: Total cache size (in pairs): 552, Positive cache size: 519, Positive conditional cache size: 0, Positive unconditional cache size: 519, 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: 5.6s, 362 PlacesBefore, 112 PlacesAfterwards, 390 TransitionsBefore, 111 TransitionsAfterwards, 116200 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 277 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 83 ConcurrentYvCompositions, 29 ChoiceCompositions, 408 TotalNumberOfCompositions, 200741 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106458, independent: 105806, independent conditional: 0, independent unconditional: 105806, dependent: 652, dependent conditional: 0, dependent unconditional: 652, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 65802, independent: 65714, independent conditional: 0, independent unconditional: 65714, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 106458, independent: 40092, independent conditional: 0, independent unconditional: 40092, dependent: 564, dependent conditional: 0, dependent unconditional: 564, unknown: 65802, unknown conditional: 0, unknown unconditional: 65802] , Statistics on independence cache: Total cache size (in pairs): 979, Positive cache size: 940, Positive conditional cache size: 0, Positive unconditional cache size: 940, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 409 PlacesBefore, 127 PlacesAfterwards, 441 TransitionsBefore, 126 TransitionsAfterwards, 153200 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 318 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 89 ConcurrentYvCompositions, 33 ChoiceCompositions, 459 TotalNumberOfCompositions, 261101 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 132596, independent: 131850, independent conditional: 0, independent unconditional: 131850, dependent: 746, dependent conditional: 0, dependent unconditional: 746, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 86087, independent: 85981, independent conditional: 0, independent unconditional: 85981, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 132596, independent: 45869, independent conditional: 0, independent unconditional: 45869, dependent: 640, dependent conditional: 0, dependent unconditional: 640, unknown: 86087, unknown conditional: 0, unknown unconditional: 86087] , Statistics on independence cache: Total cache size (in pairs): 975, Positive cache size: 930, Positive conditional cache size: 0, Positive unconditional cache size: 930, Negative cache size: 45, Negative conditional cache size: 0, Negative unconditional cache size: 45, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 456 PlacesBefore, 142 PlacesAfterwards, 492 TransitionsBefore, 141 TransitionsAfterwards, 195300 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 353 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 100 ConcurrentYvCompositions, 37 ChoiceCompositions, 509 TotalNumberOfCompositions, 334201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 172124, independent: 171280, independent conditional: 0, independent unconditional: 171280, dependent: 844, dependent conditional: 0, dependent unconditional: 844, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 109620, independent: 109498, independent conditional: 0, independent unconditional: 109498, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 172124, independent: 61782, independent conditional: 0, independent unconditional: 61782, dependent: 722, dependent conditional: 0, dependent unconditional: 722, unknown: 109620, unknown conditional: 0, unknown unconditional: 109620] , Statistics on independence cache: Total cache size (in pairs): 1320, Positive cache size: 1269, Positive conditional cache size: 0, Positive unconditional cache size: 1269, Negative cache size: 51, Negative conditional cache size: 0, Negative unconditional cache size: 51, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8s, 503 PlacesBefore, 157 PlacesAfterwards, 543 TransitionsBefore, 156 TransitionsAfterwards, 242500 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 390 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 114 ConcurrentYvCompositions, 41 ChoiceCompositions, 564 TotalNumberOfCompositions, 404933 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 211798, independent: 210895, independent conditional: 0, independent unconditional: 210895, dependent: 903, dependent conditional: 0, dependent unconditional: 903, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 135422, independent: 135304, independent conditional: 0, independent unconditional: 135304, dependent: 118, dependent conditional: 0, dependent unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 211798, independent: 75591, independent conditional: 0, independent unconditional: 75591, dependent: 785, dependent conditional: 0, dependent unconditional: 785, unknown: 135422, unknown conditional: 0, unknown unconditional: 135422] , Statistics on independence cache: Total cache size (in pairs): 1773, Positive cache size: 1716, Positive conditional cache size: 0, Positive unconditional cache size: 1716, 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: 8.6s, 550 PlacesBefore, 172 PlacesAfterwards, 594 TransitionsBefore, 171 TransitionsAfterwards, 294800 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 430 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 124 ConcurrentYvCompositions, 45 ChoiceCompositions, 618 TotalNumberOfCompositions, 491265 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 261865, independent: 260871, independent conditional: 0, independent unconditional: 260871, dependent: 994, dependent conditional: 0, dependent unconditional: 994, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 165401, independent: 165278, independent conditional: 0, independent unconditional: 165278, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 261865, independent: 95593, independent conditional: 0, independent unconditional: 95593, dependent: 871, dependent conditional: 0, dependent unconditional: 871, unknown: 165401, unknown conditional: 0, unknown unconditional: 165401] , Statistics on independence cache: Total cache size (in pairs): 2634, Positive cache size: 2571, Positive conditional cache size: 0, Positive unconditional cache size: 2571, Negative cache size: 63, Negative conditional cache size: 0, Negative unconditional cache size: 63, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1s, 597 PlacesBefore, 187 PlacesAfterwards, 645 TransitionsBefore, 186 TransitionsAfterwards, 352200 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 466 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 138 ConcurrentYvCompositions, 49 ChoiceCompositions, 672 TotalNumberOfCompositions, 595294 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 303423, independent: 302325, independent conditional: 0, independent unconditional: 302325, dependent: 1098, dependent conditional: 0, dependent unconditional: 1098, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 195696, independent: 195550, independent conditional: 0, independent unconditional: 195550, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 303423, independent: 106775, independent conditional: 0, independent unconditional: 106775, dependent: 952, dependent conditional: 0, dependent unconditional: 952, unknown: 195696, unknown conditional: 0, unknown unconditional: 195696] , 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: 9.9s, 644 PlacesBefore, 202 PlacesAfterwards, 696 TransitionsBefore, 201 TransitionsAfterwards, 414700 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 517 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 146 ConcurrentYvCompositions, 53 ChoiceCompositions, 735 TotalNumberOfCompositions, 753205 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 362649, independent: 361270, independent conditional: 0, independent unconditional: 361270, dependent: 1379, dependent conditional: 0, dependent unconditional: 1379, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 231946, independent: 231778, independent conditional: 0, independent unconditional: 231778, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 362649, independent: 129492, independent conditional: 0, independent unconditional: 129492, dependent: 1211, dependent conditional: 0, dependent unconditional: 1211, unknown: 231946, unknown conditional: 0, unknown unconditional: 231946] , Statistics on independence cache: Total cache size (in pairs): 2463, Positive cache size: 2388, Positive conditional cache size: 0, Positive unconditional cache size: 2388, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7s, 691 PlacesBefore, 217 PlacesAfterwards, 747 TransitionsBefore, 216 TransitionsAfterwards, 482300 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 542 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 156 ConcurrentYvCompositions, 57 ChoiceCompositions, 774 TotalNumberOfCompositions, 826828 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 454523, independent: 453218, independent conditional: 0, independent unconditional: 453218, dependent: 1305, dependent conditional: 0, dependent unconditional: 1305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 277036, independent: 276787, independent conditional: 0, independent unconditional: 276787, dependent: 249, dependent conditional: 0, dependent unconditional: 249, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 454523, independent: 176431, independent conditional: 0, independent unconditional: 176431, dependent: 1056, dependent conditional: 0, dependent unconditional: 1056, unknown: 277036, unknown conditional: 0, unknown unconditional: 277036] , Statistics on independence cache: Total cache size (in pairs): 5699, Positive cache size: 5579, Positive conditional cache size: 0, Positive unconditional cache size: 5579, Negative cache size: 120, Negative conditional cache size: 0, Negative unconditional cache size: 120, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.3s, 738 PlacesBefore, 232 PlacesAfterwards, 798 TransitionsBefore, 231 TransitionsAfterwards, 555000 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 582 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 168 ConcurrentYvCompositions, 61 ChoiceCompositions, 830 TotalNumberOfCompositions, 951460 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 501723, independent: 500329, independent conditional: 0, independent unconditional: 500329, dependent: 1394, dependent conditional: 0, dependent unconditional: 1394, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 314191, independent: 313934, independent conditional: 0, independent unconditional: 313934, dependent: 257, dependent conditional: 0, dependent unconditional: 257, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 501723, independent: 186395, independent conditional: 0, independent unconditional: 186395, dependent: 1137, dependent conditional: 0, dependent unconditional: 1137, unknown: 314191, unknown conditional: 0, unknown unconditional: 314191] , Statistics on independence cache: Total cache size (in pairs): 8214, Positive cache size: 8071, Positive conditional cache size: 0, Positive unconditional cache size: 8071, Negative cache size: 143, Negative conditional cache size: 0, Negative unconditional cache size: 143, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.4s, 785 PlacesBefore, 247 PlacesAfterwards, 849 TransitionsBefore, 246 TransitionsAfterwards, 632800 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 622 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 184 ConcurrentYvCompositions, 65 ChoiceCompositions, 890 TotalNumberOfCompositions, 1062894 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 553690, independent: 552247, independent conditional: 0, independent unconditional: 552247, dependent: 1443, dependent conditional: 0, dependent unconditional: 1443, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 354995, independent: 354818, independent conditional: 0, independent unconditional: 354818, dependent: 177, dependent conditional: 0, dependent unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 553690, independent: 197429, independent conditional: 0, independent unconditional: 197429, dependent: 1266, dependent conditional: 0, dependent unconditional: 1266, unknown: 354995, unknown conditional: 0, unknown unconditional: 354995] , Statistics on independence cache: Total cache size (in pairs): 4670, Positive cache size: 4577, Positive conditional cache size: 0, Positive unconditional cache size: 4577, Negative cache size: 93, Negative conditional cache size: 0, Negative unconditional cache size: 93, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.3s, 832 PlacesBefore, 262 PlacesAfterwards, 900 TransitionsBefore, 261 TransitionsAfterwards, 715700 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 655 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 198 ConcurrentYvCompositions, 69 ChoiceCompositions, 941 TotalNumberOfCompositions, 1198164 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 621059, independent: 619524, independent conditional: 0, independent unconditional: 619524, dependent: 1535, dependent conditional: 0, dependent unconditional: 1535, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 401694, independent: 401481, independent conditional: 0, independent unconditional: 401481, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 621059, independent: 218043, independent conditional: 0, independent unconditional: 218043, dependent: 1322, dependent conditional: 0, dependent unconditional: 1322, unknown: 401694, unknown conditional: 0, unknown unconditional: 401694] , Statistics on independence cache: Total cache size (in pairs): 4568, Positive cache size: 4469, Positive conditional cache size: 0, Positive unconditional cache size: 4469, Negative cache size: 99, Negative conditional cache size: 0, Negative unconditional cache size: 99, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.7s, 879 PlacesBefore, 277 PlacesAfterwards, 951 TransitionsBefore, 276 TransitionsAfterwards, 803700 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 703 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 204 ConcurrentYvCompositions, 73 ChoiceCompositions, 999 TotalNumberOfCompositions, 1371955 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 693295, independent: 691641, independent conditional: 0, independent unconditional: 691641, dependent: 1654, dependent conditional: 0, dependent unconditional: 1654, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 449204, independent: 448973, independent conditional: 0, independent unconditional: 448973, dependent: 231, dependent conditional: 0, dependent unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 693295, independent: 242668, independent conditional: 0, independent unconditional: 242668, dependent: 1423, dependent conditional: 0, dependent unconditional: 1423, unknown: 449204, unknown conditional: 0, unknown unconditional: 449204] , Statistics on independence cache: Total cache size (in pairs): 5082, Positive cache size: 4977, Positive conditional cache size: 0, Positive unconditional cache size: 4977, 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: 14.7s, 926 PlacesBefore, 292 PlacesAfterwards, 1002 TransitionsBefore, 291 TransitionsAfterwards, 896800 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 735 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 218 ConcurrentYvCompositions, 77 ChoiceCompositions, 1049 TotalNumberOfCompositions, 1514940 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 766295, independent: 764572, independent conditional: 0, independent unconditional: 764572, dependent: 1723, dependent conditional: 0, dependent unconditional: 1723, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 500844, independent: 500609, independent conditional: 0, independent unconditional: 500609, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 766295, independent: 263963, independent conditional: 0, independent unconditional: 263963, dependent: 1488, dependent conditional: 0, dependent unconditional: 1488, unknown: 500844, unknown conditional: 0, unknown unconditional: 500844] , Statistics on independence cache: Total cache size (in pairs): 4951, Positive cache size: 4840, Positive conditional cache size: 0, Positive unconditional cache size: 4840, Negative cache size: 111, Negative conditional cache size: 0, Negative unconditional cache size: 111, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.6s, 973 PlacesBefore, 307 PlacesAfterwards, 1053 TransitionsBefore, 306 TransitionsAfterwards, 995000 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 771 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 229 ConcurrentYvCompositions, 81 ChoiceCompositions, 1100 TotalNumberOfCompositions, 1679549 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 853903, independent: 852081, independent conditional: 0, independent unconditional: 852081, dependent: 1822, dependent conditional: 0, dependent unconditional: 1822, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 556004, independent: 555782, independent conditional: 0, independent unconditional: 555782, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 853903, independent: 296299, independent conditional: 0, independent unconditional: 296299, dependent: 1600, dependent conditional: 0, dependent unconditional: 1600, unknown: 556004, unknown conditional: 0, unknown unconditional: 556004] , Statistics on independence cache: Total cache size (in pairs): 6130, Positive cache size: 6013, Positive conditional cache size: 0, Positive unconditional cache size: 6013, Negative cache size: 117, Negative conditional cache size: 0, Negative unconditional cache size: 117, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.2s, 1020 PlacesBefore, 322 PlacesAfterwards, 1104 TransitionsBefore, 321 TransitionsAfterwards, 1098300 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 805 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 240 ConcurrentYvCompositions, 85 ChoiceCompositions, 1149 TotalNumberOfCompositions, 1845811 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 965947, independent: 964037, independent conditional: 0, independent unconditional: 964037, dependent: 1910, dependent conditional: 0, dependent unconditional: 1910, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 618769, independent: 618479, independent conditional: 0, independent unconditional: 618479, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 965947, independent: 345558, independent conditional: 0, independent unconditional: 345558, dependent: 1620, dependent conditional: 0, dependent unconditional: 1620, unknown: 618769, unknown conditional: 0, unknown unconditional: 618769] , Statistics on independence cache: Total cache size (in pairs): 11379, Positive cache size: 11235, Positive conditional cache size: 0, Positive unconditional cache size: 11235, Negative cache size: 144, Negative conditional cache size: 0, Negative unconditional cache size: 144, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.3s, 1067 PlacesBefore, 337 PlacesAfterwards, 1155 TransitionsBefore, 336 TransitionsAfterwards, 1206700 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 858 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 256 ConcurrentYvCompositions, 89 ChoiceCompositions, 1222 TotalNumberOfCompositions, 2081666 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1049182, independent: 1047160, independent conditional: 0, independent unconditional: 1047160, dependent: 2022, dependent conditional: 0, dependent unconditional: 2022, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 677863, independent: 677530, independent conditional: 0, independent unconditional: 677530, dependent: 333, dependent conditional: 0, dependent unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1049182, independent: 369630, independent conditional: 0, independent unconditional: 369630, dependent: 1689, dependent conditional: 0, dependent unconditional: 1689, unknown: 677863, unknown conditional: 0, unknown unconditional: 677863] , Statistics on independence cache: Total cache size (in pairs): 6786, Positive cache size: 6602, Positive conditional cache size: 0, Positive unconditional cache size: 6602, Negative cache size: 184, Negative conditional cache size: 0, Negative unconditional cache size: 184, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.1s, 1114 PlacesBefore, 352 PlacesAfterwards, 1206 TransitionsBefore, 351 TransitionsAfterwards, 1320200 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 886 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 261 ConcurrentYvCompositions, 93 ChoiceCompositions, 1259 TotalNumberOfCompositions, 2236504 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1110107, independent: 1108007, independent conditional: 0, independent unconditional: 1108007, dependent: 2100, dependent conditional: 0, dependent unconditional: 2100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 734352, independent: 734058, independent conditional: 0, independent unconditional: 734058, dependent: 294, dependent conditional: 0, dependent unconditional: 294, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1110107, independent: 373949, independent conditional: 0, independent unconditional: 373949, dependent: 1806, dependent conditional: 0, dependent unconditional: 1806, unknown: 734352, unknown conditional: 0, unknown unconditional: 734352] , Statistics on independence cache: Total cache size (in pairs): 6328, Positive cache size: 6193, Positive conditional cache size: 0, Positive unconditional cache size: 6193, Negative cache size: 135, Negative conditional cache size: 0, Negative unconditional cache size: 135, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.7s, 1161 PlacesBefore, 367 PlacesAfterwards, 1257 TransitionsBefore, 366 TransitionsAfterwards, 1438800 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 921 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 275 ConcurrentYvCompositions, 97 ChoiceCompositions, 1312 TotalNumberOfCompositions, 2435865 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1194133, independent: 1191944, independent conditional: 0, independent unconditional: 1191944, dependent: 2189, dependent conditional: 0, dependent unconditional: 2189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 798046, independent: 797770, independent conditional: 0, independent unconditional: 797770, dependent: 276, dependent conditional: 0, dependent unconditional: 276, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1194133, independent: 394174, independent conditional: 0, independent unconditional: 394174, dependent: 1913, dependent conditional: 0, dependent unconditional: 1913, unknown: 798046, unknown conditional: 0, unknown unconditional: 798046] , Statistics on independence cache: Total cache size (in pairs): 6795, Positive cache size: 6654, Positive conditional cache size: 0, Positive unconditional cache size: 6654, Negative cache size: 141, Negative conditional cache size: 0, Negative unconditional cache size: 141, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.1s, 1208 PlacesBefore, 382 PlacesAfterwards, 1308 TransitionsBefore, 381 TransitionsAfterwards, 1562500 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 959 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 292 ConcurrentYvCompositions, 101 ChoiceCompositions, 1371 TotalNumberOfCompositions, 2685730 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1413904, independent: 1411592, independent conditional: 0, independent unconditional: 1411592, dependent: 2312, dependent conditional: 0, dependent unconditional: 2312, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 887288, independent: 886871, independent conditional: 0, independent unconditional: 886871, dependent: 417, dependent conditional: 0, dependent unconditional: 417, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1413904, independent: 524721, independent conditional: 0, independent unconditional: 524721, dependent: 1895, dependent conditional: 0, dependent unconditional: 1895, unknown: 887288, unknown conditional: 0, unknown unconditional: 887288] , Statistics on independence cache: Total cache size (in pairs): 21685, Positive cache size: 21442, Positive conditional cache size: 0, Positive unconditional cache size: 21442, Negative cache size: 243, Negative conditional cache size: 0, Negative unconditional cache size: 243, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.0s, 1255 PlacesBefore, 397 PlacesAfterwards, 1359 TransitionsBefore, 396 TransitionsAfterwards, 1691300 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1003 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 297 ConcurrentYvCompositions, 105 ChoiceCompositions, 1424 TotalNumberOfCompositions, 2892389 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1423506, independent: 1421116, independent conditional: 0, independent unconditional: 1421116, dependent: 2390, dependent conditional: 0, dependent unconditional: 2390, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 942511, independent: 942161, independent conditional: 0, independent unconditional: 942161, dependent: 350, dependent conditional: 0, dependent unconditional: 350, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1423506, independent: 478955, independent conditional: 0, independent unconditional: 478955, dependent: 2040, dependent conditional: 0, dependent unconditional: 2040, unknown: 942511, unknown conditional: 0, unknown unconditional: 942511] , Statistics on independence cache: Total cache size (in pairs): 9142, Positive cache size: 8989, Positive conditional cache size: 0, Positive unconditional cache size: 8989, Negative cache size: 153, Negative conditional cache size: 0, Negative unconditional cache size: 153, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.9s, 1302 PlacesBefore, 412 PlacesAfterwards, 1410 TransitionsBefore, 411 TransitionsAfterwards, 1825200 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1053 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 298 ConcurrentYvCompositions, 109 ChoiceCompositions, 1479 TotalNumberOfCompositions, 3165717 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1566175, independent: 1563669, independent conditional: 0, independent unconditional: 1563669, dependent: 2506, dependent conditional: 0, dependent unconditional: 2506, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1019218, independent: 1018900, independent conditional: 0, independent unconditional: 1018900, dependent: 318, dependent conditional: 0, dependent unconditional: 318, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1566175, independent: 544769, independent conditional: 0, independent unconditional: 544769, dependent: 2188, dependent conditional: 0, dependent unconditional: 2188, unknown: 1019218, unknown conditional: 0, unknown unconditional: 1019218] , Statistics on independence cache: Total cache size (in pairs): 10409, Positive cache size: 10250, Positive conditional cache size: 0, Positive unconditional cache size: 10250, Negative cache size: 159, Negative conditional cache size: 0, Negative unconditional cache size: 159, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.0s, 1349 PlacesBefore, 427 PlacesAfterwards, 1461 TransitionsBefore, 426 TransitionsAfterwards, 1964200 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1095 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 310 ConcurrentYvCompositions, 113 ChoiceCompositions, 1537 TotalNumberOfCompositions, 3327683 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1791525, independent: 1788991, independent conditional: 0, independent unconditional: 1788991, dependent: 2534, dependent conditional: 0, dependent unconditional: 2534, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1112815, independent: 1112291, independent conditional: 0, independent unconditional: 1112291, dependent: 524, dependent conditional: 0, dependent unconditional: 524, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1791525, independent: 676700, independent conditional: 0, independent unconditional: 676700, dependent: 2010, dependent conditional: 0, dependent unconditional: 2010, unknown: 1112815, unknown conditional: 0, unknown unconditional: 1112815] , Statistics on independence cache: Total cache size (in pairs): 20160, Positive cache size: 19842, Positive conditional cache size: 0, Positive unconditional cache size: 19842, Negative cache size: 318, Negative conditional cache size: 0, Negative unconditional cache size: 318, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.9s, 1396 PlacesBefore, 442 PlacesAfterwards, 1512 TransitionsBefore, 441 TransitionsAfterwards, 2108300 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1116 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 333 ConcurrentYvCompositions, 117 ChoiceCompositions, 1585 TotalNumberOfCompositions, 3562281 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1784632, independent: 1782000, independent conditional: 0, independent unconditional: 1782000, dependent: 2632, dependent conditional: 0, dependent unconditional: 2632, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1175048, independent: 1174602, independent conditional: 0, independent unconditional: 1174602, dependent: 446, dependent conditional: 0, dependent unconditional: 446, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1784632, independent: 607398, independent conditional: 0, independent unconditional: 607398, dependent: 2186, dependent conditional: 0, dependent unconditional: 2186, unknown: 1175048, unknown conditional: 0, unknown unconditional: 1175048] , Statistics on independence cache: Total cache size (in pairs): 11798, Positive cache size: 11543, Positive conditional cache size: 0, Positive unconditional cache size: 11543, Negative cache size: 255, Negative conditional cache size: 0, Negative unconditional cache size: 255, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.0s, 1443 PlacesBefore, 457 PlacesAfterwards, 1563 TransitionsBefore, 456 TransitionsAfterwards, 2257500 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1160 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 343 ConcurrentYvCompositions, 121 ChoiceCompositions, 1643 TotalNumberOfCompositions, 3842922 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1895326, independent: 1892584, independent conditional: 0, independent unconditional: 1892584, dependent: 2742, dependent conditional: 0, dependent unconditional: 2742, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1263645, independent: 1263261, independent conditional: 0, independent unconditional: 1263261, dependent: 384, dependent conditional: 0, dependent unconditional: 384, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1895326, independent: 629323, independent conditional: 0, independent unconditional: 629323, dependent: 2358, dependent conditional: 0, dependent unconditional: 2358, unknown: 1263645, unknown conditional: 0, unknown unconditional: 1263645] , Statistics on independence cache: Total cache size (in pairs): 10469, Positive cache size: 10292, Positive conditional cache size: 0, Positive unconditional cache size: 10292, Negative cache size: 177, Negative conditional cache size: 0, Negative unconditional cache size: 177, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.3s, 1490 PlacesBefore, 472 PlacesAfterwards, 1614 TransitionsBefore, 471 TransitionsAfterwards, 2411800 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1210 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 353 ConcurrentYvCompositions, 125 ChoiceCompositions, 1707 TotalNumberOfCompositions, 4163049 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2056688, independent: 2053830, independent conditional: 0, independent unconditional: 2053830, dependent: 2858, dependent conditional: 0, dependent unconditional: 2858, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1351912, independent: 1351548, independent conditional: 0, independent unconditional: 1351548, dependent: 364, dependent conditional: 0, dependent unconditional: 364, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2056688, independent: 702282, independent conditional: 0, independent unconditional: 702282, dependent: 2494, dependent conditional: 0, dependent unconditional: 2494, unknown: 1351912, unknown conditional: 0, unknown unconditional: 1351912] , Statistics on independence cache: Total cache size (in pairs): 16576, Positive cache size: 16392, Positive conditional cache size: 0, Positive unconditional cache size: 16392, Negative cache size: 184, Negative conditional cache size: 0, Negative unconditional cache size: 184, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.9s, 1537 PlacesBefore, 487 PlacesAfterwards, 1665 TransitionsBefore, 486 TransitionsAfterwards, 2571200 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1240 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 363 ConcurrentYvCompositions, 129 ChoiceCompositions, 1751 TotalNumberOfCompositions, 4401749 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2581695, independent: 2578765, independent conditional: 0, independent unconditional: 2578765, dependent: 2930, dependent conditional: 0, dependent unconditional: 2930, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1477395, independent: 1476897, independent conditional: 0, independent unconditional: 1476897, dependent: 498, dependent conditional: 0, dependent unconditional: 498, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2581695, independent: 1101868, independent conditional: 0, independent unconditional: 1101868, dependent: 2432, dependent conditional: 0, dependent unconditional: 2432, unknown: 1477395, unknown conditional: 0, unknown unconditional: 1477395] , Statistics on independence cache: Total cache size (in pairs): 31610, Positive cache size: 31389, Positive conditional cache size: 0, Positive unconditional cache size: 31389, Negative cache size: 221, Negative conditional cache size: 0, Negative unconditional cache size: 221, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.4s, 1584 PlacesBefore, 502 PlacesAfterwards, 1716 TransitionsBefore, 501 TransitionsAfterwards, 2735700 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1282 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 373 ConcurrentYvCompositions, 133 ChoiceCompositions, 1807 TotalNumberOfCompositions, 4722797 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2574141, independent: 2571101, independent conditional: 0, independent unconditional: 2571101, dependent: 3040, dependent conditional: 0, dependent unconditional: 3040, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1560728, independent: 1560207, independent conditional: 0, independent unconditional: 1560207, dependent: 521, dependent conditional: 0, dependent unconditional: 521, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2574141, independent: 1010894, independent conditional: 0, independent unconditional: 1010894, dependent: 2519, dependent conditional: 0, dependent unconditional: 2519, unknown: 1560728, unknown conditional: 0, unknown unconditional: 1560728] , Statistics on independence cache: Total cache size (in pairs): 29856, Positive cache size: 29627, Positive conditional cache size: 0, Positive unconditional cache size: 29627, Negative cache size: 229, Negative conditional cache size: 0, Negative unconditional cache size: 229, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.3s, 1631 PlacesBefore, 517 PlacesAfterwards, 1767 TransitionsBefore, 516 TransitionsAfterwards, 2905300 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1309 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 381 ConcurrentYvCompositions, 137 ChoiceCompositions, 1846 TotalNumberOfCompositions, 5071233 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2618899, independent: 2615738, independent conditional: 0, independent unconditional: 2615738, dependent: 3161, dependent conditional: 0, dependent unconditional: 3161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1635076, independent: 1634551, independent conditional: 0, independent unconditional: 1634551, dependent: 525, dependent conditional: 0, dependent unconditional: 525, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2618899, independent: 981187, independent conditional: 0, independent unconditional: 981187, dependent: 2636, dependent conditional: 0, dependent unconditional: 2636, unknown: 1635076, unknown conditional: 0, unknown unconditional: 1635076] , Statistics on independence cache: Total cache size (in pairs): 28082, Positive cache size: 27790, Positive conditional cache size: 0, Positive unconditional cache size: 27790, Negative cache size: 292, Negative conditional cache size: 0, Negative unconditional cache size: 292, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.1s, 1678 PlacesBefore, 532 PlacesAfterwards, 1818 TransitionsBefore, 531 TransitionsAfterwards, 3080000 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1366 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 412 ConcurrentYvCompositions, 141 ChoiceCompositions, 1938 TotalNumberOfCompositions, 5420072 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2921964, independent: 2918717, independent conditional: 0, independent unconditional: 2918717, dependent: 3247, dependent conditional: 0, dependent unconditional: 3247, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1769255, independent: 1768804, independent conditional: 0, independent unconditional: 1768804, dependent: 451, dependent conditional: 0, dependent unconditional: 451, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2921964, independent: 1149913, independent conditional: 0, independent unconditional: 1149913, dependent: 2796, dependent conditional: 0, dependent unconditional: 2796, unknown: 1769255, unknown conditional: 0, unknown unconditional: 1769255] , Statistics on independence cache: Total cache size (in pairs): 50071, Positive cache size: 49829, Positive conditional cache size: 0, Positive unconditional cache size: 49829, Negative cache size: 242, Negative conditional cache size: 0, Negative unconditional cache size: 242, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.3s, 1725 PlacesBefore, 547 PlacesAfterwards, 1869 TransitionsBefore, 546 TransitionsAfterwards, 3259800 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1390 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 397 ConcurrentYvCompositions, 145 ChoiceCompositions, 1951 TotalNumberOfCompositions, 5633453 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2947703, independent: 2944379, independent conditional: 0, independent unconditional: 2944379, dependent: 3324, dependent conditional: 0, dependent unconditional: 3324, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1832049, independent: 1831517, independent conditional: 0, independent unconditional: 1831517, dependent: 532, dependent conditional: 0, dependent unconditional: 532, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2947703, independent: 1112862, independent conditional: 0, independent unconditional: 1112862, dependent: 2792, dependent conditional: 0, dependent unconditional: 2792, unknown: 1832049, unknown conditional: 0, unknown unconditional: 1832049] , Statistics on independence cache: Total cache size (in pairs): 45603, Positive cache size: 45354, Positive conditional cache size: 0, Positive unconditional cache size: 45354, Negative cache size: 249, Negative conditional cache size: 0, Negative unconditional cache size: 249, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.9s, 1772 PlacesBefore, 562 PlacesAfterwards, 1920 TransitionsBefore, 561 TransitionsAfterwards, 3444700 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1432 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 428 ConcurrentYvCompositions, 149 ChoiceCompositions, 2028 TotalNumberOfCompositions, 5997549 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3107156, independent: 3103738, independent conditional: 0, independent unconditional: 3103738, dependent: 3418, dependent conditional: 0, dependent unconditional: 3418, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1942874, independent: 1942346, independent conditional: 0, independent unconditional: 1942346, dependent: 528, dependent conditional: 0, dependent unconditional: 528, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3107156, independent: 1161392, independent conditional: 0, independent unconditional: 1161392, dependent: 2890, dependent conditional: 0, dependent unconditional: 2890, unknown: 1942874, unknown conditional: 0, unknown unconditional: 1942874] , Statistics on independence cache: Total cache size (in pairs): 45613, Positive cache size: 45357, Positive conditional cache size: 0, Positive unconditional cache size: 45357, Negative cache size: 256, Negative conditional cache size: 0, Negative unconditional cache size: 256, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.7s, 1819 PlacesBefore, 577 PlacesAfterwards, 1971 TransitionsBefore, 576 TransitionsAfterwards, 3634700 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 1460 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 445 ConcurrentYvCompositions, 153 ChoiceCompositions, 2077 TotalNumberOfCompositions, 6591894 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3363076, independent: 3359075, independent conditional: 0, independent unconditional: 3359075, dependent: 4001, dependent conditional: 0, dependent unconditional: 4001, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2051459, independent: 2050980, independent conditional: 0, independent unconditional: 2050980, dependent: 479, dependent conditional: 0, dependent unconditional: 479, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3363076, independent: 1308095, independent conditional: 0, independent unconditional: 1308095, dependent: 3522, dependent conditional: 0, dependent unconditional: 3522, unknown: 2051459, unknown conditional: 0, unknown unconditional: 2051459] , Statistics on independence cache: Total cache size (in pairs): 47909, Positive cache size: 47646, Positive conditional cache size: 0, Positive unconditional cache size: 47646, Negative cache size: 263, Negative conditional cache size: 0, Negative unconditional cache size: 263, 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 1866 places, 2022 transitions, 5721 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 1866 places, 2022 transitions, 5721 flow and 496832 co-enabled transitions pairs.,while SimplifyDDAWithTimeout was simplifying term of DAG size 37 for 13ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown