/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/goblint-regression/28-race_reach_21-deref_read_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 05:08:42,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 05:08:42,768 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 05:08:42,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 05:08:42,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 05:08:42,802 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 05:08:42,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 05:08:42,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 05:08:42,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 05:08:42,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 05:08:42,808 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 05:08:42,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 05:08:42,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 05:08:42,808 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 05:08:42,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 05:08:42,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 05:08:42,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 05:08:42,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 05:08:42,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 05:08:42,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 05:08:42,810 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 05:08:42,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 05:08:42,810 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 05:08:42,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 05:08:42,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 05:08:42,811 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 05:08:42,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 05:08:42,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 05:08:42,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 05:08:42,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 05:08:42,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 05:08:42,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 05:08:42,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 05:08:42,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 05:08:42,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 05:08:42,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 05:08:43,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 05:08:43,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 05:08:43,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 05:08:43,142 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 05:08:43,144 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 05:08:43,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_21-deref_read_racing.i [2023-08-27 05:08:44,140 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 05:08:44,445 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 05:08:44,445 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_21-deref_read_racing.i [2023-08-27 05:08:44,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba576f8a/a75a069f58cb48eebaca8ad296f675c2/FLAG5a999f9cf [2023-08-27 05:08:44,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba576f8a/a75a069f58cb48eebaca8ad296f675c2 [2023-08-27 05:08:44,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 05:08:44,475 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 05:08:44,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 05:08:44,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 05:08:44,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 05:08:44,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:44,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493bf8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44, skipping insertion in model container [2023-08-27 05:08:44,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:44,541 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 05:08:44,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 05:08:44,862 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 05:08:44,891 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 05:08:44,892 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 05:08:44,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 05:08:44,955 INFO L206 MainTranslator]: Completed translation [2023-08-27 05:08:44,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44 WrapperNode [2023-08-27 05:08:44,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 05:08:44,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 05:08:44,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 05:08:44,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 05:08:44,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:44,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:45,013 INFO L138 Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-08-27 05:08:45,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 05:08:45,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 05:08:45,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 05:08:45,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 05:08:45,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:45,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:45,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:45,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:45,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:45,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:45,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:45,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:45,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 05:08:45,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 05:08:45,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 05:08:45,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 05:08:45,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (1/1) ... [2023-08-27 05:08:45,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 05:08:45,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 05:08:45,086 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 05:08:45,101 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 05:08:45,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 05:08:45,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 05:08:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 05:08:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 05:08:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 05:08:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 05:08:45,126 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 05:08:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 05:08:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 05:08:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 05:08:45,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 05:08:45,127 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 05:08:45,275 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 05:08:45,282 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 05:08:45,508 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 05:08:45,516 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 05:08:45,516 INFO L302 CfgBuilder]: Removed 9 assume(true) statements. [2023-08-27 05:08:45,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:08:45 BoogieIcfgContainer [2023-08-27 05:08:45,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 05:08:45,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 05:08:45,522 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 05:08:45,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 05:08:45,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 05:08:44" (1/3) ... [2023-08-27 05:08:45,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7262eb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:08:45, skipping insertion in model container [2023-08-27 05:08:45,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:08:44" (2/3) ... [2023-08-27 05:08:45,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7262eb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:08:45, skipping insertion in model container [2023-08-27 05:08:45,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:08:45" (3/3) ... [2023-08-27 05:08:45,527 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_21-deref_read_racing.i [2023-08-27 05:08:45,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 05:08:45,543 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-27 05:08:45,543 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 05:08:45,614 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:08:45,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 114 transitions, 233 flow [2023-08-27 05:08:45,747 INFO L124 PetriNetUnfolderBase]: 16/147 cut-off events. [2023-08-27 05:08:45,748 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 05:08:45,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 147 events. 16/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 347 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2023-08-27 05:08:45,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 114 transitions, 233 flow [2023-08-27 05:08:45,759 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 114 transitions, 233 flow [2023-08-27 05:08:45,763 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:08:45,775 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 114 transitions, 233 flow [2023-08-27 05:08:45,778 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 114 transitions, 233 flow [2023-08-27 05:08:45,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 114 transitions, 233 flow [2023-08-27 05:08:45,829 INFO L124 PetriNetUnfolderBase]: 16/147 cut-off events. [2023-08-27 05:08:45,829 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 05:08:45,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 147 events. 16/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 347 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2023-08-27 05:08:45,832 INFO L119 LiptonReduction]: Number of co-enabled transitions 3440 [2023-08-27 05:08:48,964 INFO L134 LiptonReduction]: Checked pairs total: 6391 [2023-08-27 05:08:48,964 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-08-27 05:08:48,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:08:48,980 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:08:48,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:08:48,984 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:08:48,985 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2023-08-27 05:08:48,985 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 05:08:48,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:08:48,985 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-27 05:08:48,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:08:48,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:08:48,994 INFO L85 PathProgramCache]: Analyzing trace with hash 516902456, now seen corresponding path program 1 times [2023-08-27 05:08:49,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:08:49,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987130793] [2023-08-27 05:08:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:08:49,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:08:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:08:49,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:08:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:08:49,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:08:49,150 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:08:49,151 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:08:49,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 05:08:49,154 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:08:49,162 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:08:49,163 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:08:49,163 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-27 05:08:49,188 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:08:49,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 155 transitions, 322 flow [2023-08-27 05:08:49,221 INFO L124 PetriNetUnfolderBase]: 27/230 cut-off events. [2023-08-27 05:08:49,222 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 05:08:49,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 230 events. 27/230 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 668 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2023-08-27 05:08:49,224 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 155 transitions, 322 flow [2023-08-27 05:08:49,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 155 transitions, 322 flow [2023-08-27 05:08:49,226 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:08:49,227 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 155 transitions, 322 flow [2023-08-27 05:08:49,227 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 155 transitions, 322 flow [2023-08-27 05:08:49,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 155 transitions, 322 flow [2023-08-27 05:08:49,251 INFO L124 PetriNetUnfolderBase]: 27/230 cut-off events. [2023-08-27 05:08:49,251 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 05:08:49,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 230 events. 27/230 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 668 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2023-08-27 05:08:49,258 INFO L119 LiptonReduction]: Number of co-enabled transitions 10160 [2023-08-27 05:08:52,171 INFO L134 LiptonReduction]: Checked pairs total: 21637 [2023-08-27 05:08:52,172 INFO L136 LiptonReduction]: Total number of compositions: 144 [2023-08-27 05:08:52,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:08:52,175 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:08:52,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:08:52,180 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:08:52,180 INFO L124 PetriNetUnfolderBase]: 12/58 cut-off events. [2023-08-27 05:08:52,180 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 05:08:52,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:08:52,180 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-27 05:08:52,181 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:08:52,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:08:52,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1673278955, now seen corresponding path program 1 times [2023-08-27 05:08:52,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:08:52,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178127619] [2023-08-27 05:08:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:08:52,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:08:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:08:52,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:08:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:08:52,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:08:52,249 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:08:52,249 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:08:52,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 05:08:52,250 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:08:52,250 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:08:52,250 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:08:52,250 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-27 05:08:52,270 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:08:52,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 196 transitions, 413 flow [2023-08-27 05:08:52,305 INFO L124 PetriNetUnfolderBase]: 38/313 cut-off events. [2023-08-27 05:08:52,305 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 05:08:52,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 313 events. 38/313 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 978 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 234. Up to 8 conditions per place. [2023-08-27 05:08:52,309 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 196 transitions, 413 flow [2023-08-27 05:08:52,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 196 transitions, 413 flow [2023-08-27 05:08:52,311 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:08:52,311 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 196 transitions, 413 flow [2023-08-27 05:08:52,312 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 196 transitions, 413 flow [2023-08-27 05:08:52,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 196 transitions, 413 flow [2023-08-27 05:08:52,340 INFO L124 PetriNetUnfolderBase]: 38/313 cut-off events. [2023-08-27 05:08:52,340 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 05:08:52,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 313 events. 38/313 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 978 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 234. Up to 8 conditions per place. [2023-08-27 05:08:52,355 INFO L119 LiptonReduction]: Number of co-enabled transitions 20160 [2023-08-27 05:08:55,595 INFO L134 LiptonReduction]: Checked pairs total: 46552 [2023-08-27 05:08:55,595 INFO L136 LiptonReduction]: Total number of compositions: 170 [2023-08-27 05:08:55,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:08:55,598 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:08:55,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:08:55,605 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:08:55,605 INFO L124 PetriNetUnfolderBase]: 18/89 cut-off events. [2023-08-27 05:08:55,605 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 05:08:55,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:08:55,605 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-27 05:08:55,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:08:55,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:08:55,606 INFO L85 PathProgramCache]: Analyzing trace with hash -74852414, now seen corresponding path program 1 times [2023-08-27 05:08:55,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:08:55,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396309742] [2023-08-27 05:08:55,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:08:55,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:08:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:08:55,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:08:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:08:55,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:08:55,702 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:08:55,702 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:08:55,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 05:08:55,703 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:08:55,703 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:08:55,703 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:08:55,703 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-27 05:08:55,738 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:08:55,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 237 transitions, 506 flow [2023-08-27 05:08:55,792 INFO L124 PetriNetUnfolderBase]: 49/396 cut-off events. [2023-08-27 05:08:55,794 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 05:08:55,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 396 events. 49/396 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1303 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 321. Up to 10 conditions per place. [2023-08-27 05:08:55,799 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 237 transitions, 506 flow [2023-08-27 05:08:55,807 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 237 transitions, 506 flow [2023-08-27 05:08:55,807 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:08:55,807 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 237 transitions, 506 flow [2023-08-27 05:08:55,808 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 237 transitions, 506 flow [2023-08-27 05:08:55,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 237 transitions, 506 flow [2023-08-27 05:08:55,855 INFO L124 PetriNetUnfolderBase]: 49/396 cut-off events. [2023-08-27 05:08:55,856 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 05:08:55,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 396 events. 49/396 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1303 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 321. Up to 10 conditions per place. [2023-08-27 05:08:55,875 INFO L119 LiptonReduction]: Number of co-enabled transitions 33440 [2023-08-27 05:08:59,402 INFO L134 LiptonReduction]: Checked pairs total: 85521 [2023-08-27 05:08:59,402 INFO L136 LiptonReduction]: Total number of compositions: 200 [2023-08-27 05:08:59,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:08:59,405 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:08:59,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:08:59,419 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:08:59,419 INFO L124 PetriNetUnfolderBase]: 28/126 cut-off events. [2023-08-27 05:08:59,419 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 05:08:59,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:08:59,419 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-08-27 05:08:59,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:08:59,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:08:59,420 INFO L85 PathProgramCache]: Analyzing trace with hash -142676957, now seen corresponding path program 1 times [2023-08-27 05:08:59,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:08:59,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512451808] [2023-08-27 05:08:59,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:08:59,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:08:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:08:59,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:08:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:08:59,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:08:59,515 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:08:59,515 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:08:59,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 05:08:59,515 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:08:59,516 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:08:59,516 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:08:59,516 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-27 05:08:59,544 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:08:59,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 278 transitions, 601 flow [2023-08-27 05:08:59,611 INFO L124 PetriNetUnfolderBase]: 60/479 cut-off events. [2023-08-27 05:08:59,612 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 05:08:59,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 479 events. 60/479 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1606 event pairs, 0 based on Foata normal form. 0/377 useless extension candidates. Maximal degree in co-relation 409. Up to 12 conditions per place. [2023-08-27 05:08:59,620 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 278 transitions, 601 flow [2023-08-27 05:08:59,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 278 transitions, 601 flow [2023-08-27 05:08:59,625 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:08:59,625 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 278 transitions, 601 flow [2023-08-27 05:08:59,625 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 278 transitions, 601 flow [2023-08-27 05:08:59,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 278 transitions, 601 flow [2023-08-27 05:08:59,683 INFO L124 PetriNetUnfolderBase]: 60/479 cut-off events. [2023-08-27 05:08:59,684 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 05:08:59,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 479 events. 60/479 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1606 event pairs, 0 based on Foata normal form. 0/377 useless extension candidates. Maximal degree in co-relation 409. Up to 12 conditions per place. [2023-08-27 05:08:59,708 INFO L119 LiptonReduction]: Number of co-enabled transitions 50000 [2023-08-27 05:09:03,216 INFO L134 LiptonReduction]: Checked pairs total: 118652 [2023-08-27 05:09:03,216 INFO L136 LiptonReduction]: Total number of compositions: 233 [2023-08-27 05:09:03,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:09:03,218 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:09:03,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:09:03,231 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:09:03,231 INFO L124 PetriNetUnfolderBase]: 36/161 cut-off events. [2023-08-27 05:09:03,231 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 05:09:03,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:09:03,231 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:09:03,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:09:03,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:09:03,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1735907151, now seen corresponding path program 1 times [2023-08-27 05:09:03,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:09:03,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525555339] [2023-08-27 05:09:03,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:09:03,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:09:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:03,271 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:09:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:03,304 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:09:03,304 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:09:03,304 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:09:03,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 05:09:03,305 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:09:03,305 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:09:03,305 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:09:03,305 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-27 05:09:03,330 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:09:03,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 291 places, 319 transitions, 698 flow [2023-08-27 05:09:03,436 INFO L124 PetriNetUnfolderBase]: 71/562 cut-off events. [2023-08-27 05:09:03,436 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 05:09:03,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 562 events. 71/562 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1929 event pairs, 0 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 498. Up to 14 conditions per place. [2023-08-27 05:09:03,443 INFO L82 GeneralOperation]: Start removeDead. Operand has 291 places, 319 transitions, 698 flow [2023-08-27 05:09:03,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 291 places, 319 transitions, 698 flow [2023-08-27 05:09:03,448 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:09:03,449 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 291 places, 319 transitions, 698 flow [2023-08-27 05:09:03,449 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 291 places, 319 transitions, 698 flow [2023-08-27 05:09:03,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 291 places, 319 transitions, 698 flow [2023-08-27 05:09:03,518 INFO L124 PetriNetUnfolderBase]: 71/562 cut-off events. [2023-08-27 05:09:03,518 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 05:09:03,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 562 events. 71/562 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1929 event pairs, 0 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 498. Up to 14 conditions per place. [2023-08-27 05:09:03,547 INFO L119 LiptonReduction]: Number of co-enabled transitions 69840 [2023-08-27 05:09:07,471 INFO L134 LiptonReduction]: Checked pairs total: 165785 [2023-08-27 05:09:07,471 INFO L136 LiptonReduction]: Total number of compositions: 261 [2023-08-27 05:09:07,472 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:09:07,473 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:09:07,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:09:07,488 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:09:07,489 INFO L124 PetriNetUnfolderBase]: 42/191 cut-off events. [2023-08-27 05:09:07,489 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 05:09:07,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:09:07,489 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:09:07,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:09:07,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:09:07,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1648286168, now seen corresponding path program 1 times [2023-08-27 05:09:07,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:09:07,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488021169] [2023-08-27 05:09:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:09:07,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:09:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:07,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:09:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:07,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:09:07,564 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:09:07,564 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:09:07,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 05:09:07,564 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:09:07,565 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:09:07,565 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:09:07,565 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-27 05:09:07,591 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:09:07,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 360 transitions, 797 flow [2023-08-27 05:09:07,697 INFO L124 PetriNetUnfolderBase]: 82/645 cut-off events. [2023-08-27 05:09:07,698 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 05:09:07,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 645 events. 82/645 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 2260 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 588. Up to 16 conditions per place. [2023-08-27 05:09:07,713 INFO L82 GeneralOperation]: Start removeDead. Operand has 328 places, 360 transitions, 797 flow [2023-08-27 05:09:07,721 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 328 places, 360 transitions, 797 flow [2023-08-27 05:09:07,722 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:09:07,722 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 328 places, 360 transitions, 797 flow [2023-08-27 05:09:07,722 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 328 places, 360 transitions, 797 flow [2023-08-27 05:09:07,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 360 transitions, 797 flow [2023-08-27 05:09:07,809 INFO L124 PetriNetUnfolderBase]: 82/645 cut-off events. [2023-08-27 05:09:07,809 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 05:09:07,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 645 events. 82/645 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 2260 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 588. Up to 16 conditions per place. [2023-08-27 05:09:07,849 INFO L119 LiptonReduction]: Number of co-enabled transitions 92960 [2023-08-27 05:09:12,172 INFO L134 LiptonReduction]: Checked pairs total: 227046 [2023-08-27 05:09:12,172 INFO L136 LiptonReduction]: Total number of compositions: 298 [2023-08-27 05:09:12,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:09:12,174 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:09:12,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:09:12,191 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:09:12,191 INFO L124 PetriNetUnfolderBase]: 52/228 cut-off events. [2023-08-27 05:09:12,191 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 05:09:12,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:09:12,191 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:09:12,191 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:09:12,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:09:12,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1040395405, now seen corresponding path program 1 times [2023-08-27 05:09:12,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:09:12,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258229171] [2023-08-27 05:09:12,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:09:12,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:09:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:12,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:09:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:12,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:09:12,229 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:09:12,229 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:09:12,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 05:09:12,229 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:09:12,230 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:09:12,230 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:09:12,230 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-27 05:09:12,255 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:09:12,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 365 places, 401 transitions, 898 flow [2023-08-27 05:09:12,402 INFO L124 PetriNetUnfolderBase]: 93/728 cut-off events. [2023-08-27 05:09:12,402 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-27 05:09:12,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 728 events. 93/728 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 2557 event pairs, 0 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 679. Up to 18 conditions per place. [2023-08-27 05:09:12,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 365 places, 401 transitions, 898 flow [2023-08-27 05:09:12,420 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 365 places, 401 transitions, 898 flow [2023-08-27 05:09:12,420 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:09:12,420 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 365 places, 401 transitions, 898 flow [2023-08-27 05:09:12,420 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 365 places, 401 transitions, 898 flow [2023-08-27 05:09:12,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 365 places, 401 transitions, 898 flow [2023-08-27 05:09:12,531 INFO L124 PetriNetUnfolderBase]: 93/728 cut-off events. [2023-08-27 05:09:12,531 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-27 05:09:12,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 728 events. 93/728 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 2557 event pairs, 0 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 679. Up to 18 conditions per place. [2023-08-27 05:09:12,577 INFO L119 LiptonReduction]: Number of co-enabled transitions 119360 [2023-08-27 05:09:17,119 INFO L134 LiptonReduction]: Checked pairs total: 334805 [2023-08-27 05:09:17,119 INFO L136 LiptonReduction]: Total number of compositions: 322 [2023-08-27 05:09:17,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:09:17,121 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:09:17,121 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:09:17,145 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:09:17,145 INFO L124 PetriNetUnfolderBase]: 58/259 cut-off events. [2023-08-27 05:09:17,145 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-27 05:09:17,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:09:17,145 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:09:17,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:09:17,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:09:17,146 INFO L85 PathProgramCache]: Analyzing trace with hash 616759015, now seen corresponding path program 1 times [2023-08-27 05:09:17,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:09:17,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142473894] [2023-08-27 05:09:17,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:09:17,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:09:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:17,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:09:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:17,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:09:17,185 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:09:17,185 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:09:17,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 05:09:17,185 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:09:17,186 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:09:17,186 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:09:17,186 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-27 05:09:17,213 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:09:17,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 402 places, 442 transitions, 1001 flow [2023-08-27 05:09:17,355 INFO L124 PetriNetUnfolderBase]: 104/811 cut-off events. [2023-08-27 05:09:17,355 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 05:09:17,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 811 events. 104/811 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 2890 event pairs, 0 based on Foata normal form. 0/633 useless extension candidates. Maximal degree in co-relation 771. Up to 20 conditions per place. [2023-08-27 05:09:17,376 INFO L82 GeneralOperation]: Start removeDead. Operand has 402 places, 442 transitions, 1001 flow [2023-08-27 05:09:17,384 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 402 places, 442 transitions, 1001 flow [2023-08-27 05:09:17,384 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:09:17,384 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 402 places, 442 transitions, 1001 flow [2023-08-27 05:09:17,385 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 402 places, 442 transitions, 1001 flow [2023-08-27 05:09:17,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 402 places, 442 transitions, 1001 flow [2023-08-27 05:09:17,577 INFO L124 PetriNetUnfolderBase]: 104/811 cut-off events. [2023-08-27 05:09:17,577 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 05:09:17,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 811 events. 104/811 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 2890 event pairs, 0 based on Foata normal form. 0/633 useless extension candidates. Maximal degree in co-relation 771. Up to 20 conditions per place. [2023-08-27 05:09:17,640 INFO L119 LiptonReduction]: Number of co-enabled transitions 149040 [2023-08-27 05:09:22,572 INFO L134 LiptonReduction]: Checked pairs total: 369265 [2023-08-27 05:09:22,572 INFO L136 LiptonReduction]: Total number of compositions: 358 [2023-08-27 05:09:22,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:09:22,574 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:09:22,574 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:09:22,604 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:09:22,604 INFO L124 PetriNetUnfolderBase]: 66/293 cut-off events. [2023-08-27 05:09:22,604 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 05:09:22,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:09:22,604 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:09:22,605 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:09:22,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:09:22,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1995030145, now seen corresponding path program 1 times [2023-08-27 05:09:22,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:09:22,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922647684] [2023-08-27 05:09:22,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:09:22,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:09:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:22,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:09:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:22,648 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:09:22,649 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:09:22,649 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:09:22,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 05:09:22,649 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:09:22,650 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:09:22,650 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:09:22,650 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-27 05:09:22,679 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:09:22,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 483 transitions, 1106 flow [2023-08-27 05:09:22,857 INFO L124 PetriNetUnfolderBase]: 115/894 cut-off events. [2023-08-27 05:09:22,857 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 05:09:22,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 894 events. 115/894 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 3184 event pairs, 0 based on Foata normal form. 0/697 useless extension candidates. Maximal degree in co-relation 864. Up to 22 conditions per place. [2023-08-27 05:09:22,879 INFO L82 GeneralOperation]: Start removeDead. Operand has 439 places, 483 transitions, 1106 flow [2023-08-27 05:09:22,887 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 439 places, 483 transitions, 1106 flow [2023-08-27 05:09:22,887 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:09:22,887 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 483 transitions, 1106 flow [2023-08-27 05:09:22,888 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 483 transitions, 1106 flow [2023-08-27 05:09:22,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 483 transitions, 1106 flow [2023-08-27 05:09:23,052 INFO L124 PetriNetUnfolderBase]: 115/894 cut-off events. [2023-08-27 05:09:23,053 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 05:09:23,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 894 events. 115/894 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 3184 event pairs, 0 based on Foata normal form. 0/697 useless extension candidates. Maximal degree in co-relation 864. Up to 22 conditions per place. [2023-08-27 05:09:23,123 INFO L119 LiptonReduction]: Number of co-enabled transitions 182000 [2023-08-27 05:09:27,893 INFO L134 LiptonReduction]: Checked pairs total: 470733 [2023-08-27 05:09:27,893 INFO L136 LiptonReduction]: Total number of compositions: 381 [2023-08-27 05:09:27,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:09:27,894 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:09:27,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:09:27,956 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:09:27,956 INFO L124 PetriNetUnfolderBase]: 84/337 cut-off events. [2023-08-27 05:09:27,956 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 05:09:27,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:09:27,956 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:09:27,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:09:27,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:09:27,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1470198371, now seen corresponding path program 1 times [2023-08-27 05:09:27,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:09:27,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384381881] [2023-08-27 05:09:27,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:09:27,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:09:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:27,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:09:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:28,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:09:28,030 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:09:28,030 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:09:28,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 05:09:28,030 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:09:28,031 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:09:28,031 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:09:28,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-27 05:09:28,066 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:09:28,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 476 places, 524 transitions, 1213 flow [2023-08-27 05:09:28,265 INFO L124 PetriNetUnfolderBase]: 126/977 cut-off events. [2023-08-27 05:09:28,265 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-27 05:09:28,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 977 events. 126/977 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 3513 event pairs, 0 based on Foata normal form. 0/761 useless extension candidates. Maximal degree in co-relation 959. Up to 24 conditions per place. [2023-08-27 05:09:28,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 476 places, 524 transitions, 1213 flow [2023-08-27 05:09:28,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 476 places, 524 transitions, 1213 flow [2023-08-27 05:09:28,300 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:09:28,300 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 476 places, 524 transitions, 1213 flow [2023-08-27 05:09:28,300 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 476 places, 524 transitions, 1213 flow [2023-08-27 05:09:28,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 476 places, 524 transitions, 1213 flow [2023-08-27 05:09:28,495 INFO L124 PetriNetUnfolderBase]: 126/977 cut-off events. [2023-08-27 05:09:28,495 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-27 05:09:28,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 977 events. 126/977 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 3513 event pairs, 0 based on Foata normal form. 0/761 useless extension candidates. Maximal degree in co-relation 959. Up to 24 conditions per place. [2023-08-27 05:09:28,594 INFO L119 LiptonReduction]: Number of co-enabled transitions 218240 [2023-08-27 05:09:33,946 INFO L134 LiptonReduction]: Checked pairs total: 564096 [2023-08-27 05:09:33,947 INFO L136 LiptonReduction]: Total number of compositions: 416 [2023-08-27 05:09:33,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:09:33,948 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:09:33,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:09:34,034 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:09:34,034 INFO L124 PetriNetUnfolderBase]: 95/376 cut-off events. [2023-08-27 05:09:34,034 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-27 05:09:34,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:09:34,035 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:09:34,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:09:34,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:09:34,035 INFO L85 PathProgramCache]: Analyzing trace with hash -952542069, now seen corresponding path program 1 times [2023-08-27 05:09:34,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:09:34,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080500418] [2023-08-27 05:09:34,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:09:34,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:09:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:34,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:09:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:34,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:09:34,092 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:09:34,092 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:09:34,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 05:09:34,093 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:09:34,094 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:09:34,094 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:09:34,094 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-27 05:09:34,132 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:09:34,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 513 places, 565 transitions, 1322 flow [2023-08-27 05:09:34,405 INFO L124 PetriNetUnfolderBase]: 137/1060 cut-off events. [2023-08-27 05:09:34,405 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-27 05:09:34,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 1060 events. 137/1060 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 3852 event pairs, 0 based on Foata normal form. 0/825 useless extension candidates. Maximal degree in co-relation 1056. Up to 26 conditions per place. [2023-08-27 05:09:34,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 513 places, 565 transitions, 1322 flow [2023-08-27 05:09:34,450 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 513 places, 565 transitions, 1322 flow [2023-08-27 05:09:34,450 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:09:34,450 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 513 places, 565 transitions, 1322 flow [2023-08-27 05:09:34,451 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 513 places, 565 transitions, 1322 flow [2023-08-27 05:09:34,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 513 places, 565 transitions, 1322 flow [2023-08-27 05:09:34,687 INFO L124 PetriNetUnfolderBase]: 137/1060 cut-off events. [2023-08-27 05:09:34,688 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-27 05:09:34,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 1060 events. 137/1060 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 3852 event pairs, 0 based on Foata normal form. 0/825 useless extension candidates. Maximal degree in co-relation 1056. Up to 26 conditions per place. [2023-08-27 05:09:34,783 INFO L119 LiptonReduction]: Number of co-enabled transitions 257760 [2023-08-27 05:09:40,464 INFO L134 LiptonReduction]: Checked pairs total: 669000 [2023-08-27 05:09:40,464 INFO L136 LiptonReduction]: Total number of compositions: 445 [2023-08-27 05:09:40,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:09:40,465 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:09:40,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:09:40,508 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:09:40,508 INFO L124 PetriNetUnfolderBase]: 90/395 cut-off events. [2023-08-27 05:09:40,508 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-27 05:09:40,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:09:40,508 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 05:09:40,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:09:40,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:09:40,509 INFO L85 PathProgramCache]: Analyzing trace with hash -852591379, now seen corresponding path program 1 times [2023-08-27 05:09:40,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:09:40,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631437662] [2023-08-27 05:09:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:09:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:09:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:40,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:09:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:40,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:09:40,556 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:09:40,556 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:09:40,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 05:09:40,557 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:09:40,557 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:09:40,557 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:09:40,557 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-27 05:09:40,594 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:09:40,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 550 places, 606 transitions, 1433 flow [2023-08-27 05:09:40,893 INFO L124 PetriNetUnfolderBase]: 148/1143 cut-off events. [2023-08-27 05:09:40,893 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-27 05:09:40,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 1143 events. 148/1143 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 4140 event pairs, 0 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 1154. Up to 28 conditions per place. [2023-08-27 05:09:40,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 550 places, 606 transitions, 1433 flow [2023-08-27 05:09:40,930 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 550 places, 606 transitions, 1433 flow [2023-08-27 05:09:40,930 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:09:40,930 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 550 places, 606 transitions, 1433 flow [2023-08-27 05:09:40,931 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 550 places, 606 transitions, 1433 flow [2023-08-27 05:09:40,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 550 places, 606 transitions, 1433 flow [2023-08-27 05:09:41,157 INFO L124 PetriNetUnfolderBase]: 148/1143 cut-off events. [2023-08-27 05:09:41,157 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-27 05:09:41,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 1143 events. 148/1143 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 4140 event pairs, 0 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 1154. Up to 28 conditions per place. [2023-08-27 05:09:41,250 INFO L119 LiptonReduction]: Number of co-enabled transitions 300560 [2023-08-27 05:09:47,401 INFO L134 LiptonReduction]: Checked pairs total: 778791 [2023-08-27 05:09:47,401 INFO L136 LiptonReduction]: Total number of compositions: 489 [2023-08-27 05:09:47,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:09:47,403 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:09:47,403 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:09:47,457 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:09:47,458 INFO L124 PetriNetUnfolderBase]: 111/442 cut-off events. [2023-08-27 05:09:47,458 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-27 05:09:47,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:09:47,458 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 05:09:47,458 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:09:47,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:09:47,459 INFO L85 PathProgramCache]: Analyzing trace with hash -415347997, now seen corresponding path program 1 times [2023-08-27 05:09:47,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:09:47,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994910195] [2023-08-27 05:09:47,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:09:47,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:09:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:47,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:09:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:47,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:09:47,561 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:09:47,561 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:09:47,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 05:09:47,561 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:09:47,562 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:09:47,562 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:09:47,562 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-27 05:09:47,615 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:09:47,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 587 places, 647 transitions, 1546 flow [2023-08-27 05:09:47,983 INFO L124 PetriNetUnfolderBase]: 159/1226 cut-off events. [2023-08-27 05:09:47,983 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-27 05:09:48,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 1226 events. 159/1226 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 4460 event pairs, 0 based on Foata normal form. 0/953 useless extension candidates. Maximal degree in co-relation 1253. Up to 30 conditions per place. [2023-08-27 05:09:48,017 INFO L82 GeneralOperation]: Start removeDead. Operand has 587 places, 647 transitions, 1546 flow [2023-08-27 05:09:48,028 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 587 places, 647 transitions, 1546 flow [2023-08-27 05:09:48,028 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:09:48,028 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 587 places, 647 transitions, 1546 flow [2023-08-27 05:09:48,028 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 587 places, 647 transitions, 1546 flow [2023-08-27 05:09:48,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 587 places, 647 transitions, 1546 flow [2023-08-27 05:09:48,301 INFO L124 PetriNetUnfolderBase]: 159/1226 cut-off events. [2023-08-27 05:09:48,302 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-27 05:09:48,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 1226 events. 159/1226 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 4460 event pairs, 0 based on Foata normal form. 0/953 useless extension candidates. Maximal degree in co-relation 1253. Up to 30 conditions per place. [2023-08-27 05:09:48,416 INFO L119 LiptonReduction]: Number of co-enabled transitions 346640 [2023-08-27 05:09:54,752 INFO L134 LiptonReduction]: Checked pairs total: 899283 [2023-08-27 05:09:54,752 INFO L136 LiptonReduction]: Total number of compositions: 519 [2023-08-27 05:09:54,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:09:54,754 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:09:54,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:09:54,812 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:09:54,812 INFO L124 PetriNetUnfolderBase]: 120/477 cut-off events. [2023-08-27 05:09:54,812 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-27 05:09:54,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:09:54,812 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 05:09:54,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:09:54,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:09:54,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1942324518, now seen corresponding path program 1 times [2023-08-27 05:09:54,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:09:54,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578850429] [2023-08-27 05:09:54,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:09:54,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:09:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:54,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:09:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:09:54,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:09:54,863 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:09:54,863 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:09:54,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 05:09:54,863 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:09:54,864 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:09:54,864 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:09:54,864 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-27 05:09:54,906 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:09:54,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 624 places, 688 transitions, 1661 flow [2023-08-27 05:09:55,215 INFO L124 PetriNetUnfolderBase]: 170/1309 cut-off events. [2023-08-27 05:09:55,215 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-27 05:09:55,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 1309 events. 170/1309 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 4791 event pairs, 0 based on Foata normal form. 0/1017 useless extension candidates. Maximal degree in co-relation 1353. Up to 32 conditions per place. [2023-08-27 05:09:55,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 624 places, 688 transitions, 1661 flow [2023-08-27 05:09:55,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 624 places, 688 transitions, 1661 flow [2023-08-27 05:09:55,259 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:09:55,259 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 624 places, 688 transitions, 1661 flow [2023-08-27 05:09:55,259 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 624 places, 688 transitions, 1661 flow [2023-08-27 05:09:55,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 624 places, 688 transitions, 1661 flow [2023-08-27 05:09:55,502 INFO L124 PetriNetUnfolderBase]: 170/1309 cut-off events. [2023-08-27 05:09:55,503 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-27 05:09:55,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 1309 events. 170/1309 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 4791 event pairs, 0 based on Foata normal form. 0/1017 useless extension candidates. Maximal degree in co-relation 1353. Up to 32 conditions per place. [2023-08-27 05:09:55,630 INFO L119 LiptonReduction]: Number of co-enabled transitions 396000 [2023-08-27 05:10:02,215 INFO L134 LiptonReduction]: Checked pairs total: 1023011 [2023-08-27 05:10:02,215 INFO L136 LiptonReduction]: Total number of compositions: 541 [2023-08-27 05:10:02,217 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:10:02,217 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:10:02,217 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:10:02,269 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:10:02,269 INFO L124 PetriNetUnfolderBase]: 129/512 cut-off events. [2023-08-27 05:10:02,269 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-27 05:10:02,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:10:02,270 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 05:10:02,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:10:02,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:10:02,270 INFO L85 PathProgramCache]: Analyzing trace with hash 400485602, now seen corresponding path program 1 times [2023-08-27 05:10:02,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:10:02,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214035521] [2023-08-27 05:10:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:10:02,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:10:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:02,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:10:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:02,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:10:02,331 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:10:02,331 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:10:02,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 05:10:02,331 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:10:02,332 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:10:02,332 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:10:02,332 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-27 05:10:02,434 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:10:02,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 661 places, 729 transitions, 1778 flow [2023-08-27 05:10:02,807 INFO L124 PetriNetUnfolderBase]: 181/1392 cut-off events. [2023-08-27 05:10:02,808 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-27 05:10:02,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1577 conditions, 1392 events. 181/1392 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 5086 event pairs, 0 based on Foata normal form. 0/1081 useless extension candidates. Maximal degree in co-relation 1454. Up to 34 conditions per place. [2023-08-27 05:10:02,849 INFO L82 GeneralOperation]: Start removeDead. Operand has 661 places, 729 transitions, 1778 flow [2023-08-27 05:10:02,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 661 places, 729 transitions, 1778 flow [2023-08-27 05:10:02,863 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:10:02,863 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 661 places, 729 transitions, 1778 flow [2023-08-27 05:10:02,863 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 661 places, 729 transitions, 1778 flow [2023-08-27 05:10:02,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 661 places, 729 transitions, 1778 flow [2023-08-27 05:10:03,158 INFO L124 PetriNetUnfolderBase]: 181/1392 cut-off events. [2023-08-27 05:10:03,158 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-27 05:10:03,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1577 conditions, 1392 events. 181/1392 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 5086 event pairs, 0 based on Foata normal form. 0/1081 useless extension candidates. Maximal degree in co-relation 1454. Up to 34 conditions per place. [2023-08-27 05:10:03,304 INFO L119 LiptonReduction]: Number of co-enabled transitions 448640 [2023-08-27 05:10:10,636 INFO L134 LiptonReduction]: Checked pairs total: 1171372 [2023-08-27 05:10:10,636 INFO L136 LiptonReduction]: Total number of compositions: 584 [2023-08-27 05:10:10,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:10:10,638 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:10:10,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:10:10,709 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:10:10,710 INFO L124 PetriNetUnfolderBase]: 140/550 cut-off events. [2023-08-27 05:10:10,710 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-27 05:10:10,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:10:10,710 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 05:10:10,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:10:10,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:10:10,710 INFO L85 PathProgramCache]: Analyzing trace with hash 763281082, now seen corresponding path program 1 times [2023-08-27 05:10:10,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:10:10,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214135717] [2023-08-27 05:10:10,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:10:10,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:10:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:10,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:10:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:10,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:10:10,762 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:10:10,762 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:10:10,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-27 05:10:10,763 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:10:10,763 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:10:10,763 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:10:10,763 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-27 05:10:10,810 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:10:10,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 698 places, 770 transitions, 1897 flow [2023-08-27 05:10:11,253 INFO L124 PetriNetUnfolderBase]: 192/1475 cut-off events. [2023-08-27 05:10:11,253 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-27 05:10:11,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1680 conditions, 1475 events. 192/1475 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 5418 event pairs, 0 based on Foata normal form. 0/1145 useless extension candidates. Maximal degree in co-relation 1556. Up to 36 conditions per place. [2023-08-27 05:10:11,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 698 places, 770 transitions, 1897 flow [2023-08-27 05:10:11,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 698 places, 770 transitions, 1897 flow [2023-08-27 05:10:11,311 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:10:11,311 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 698 places, 770 transitions, 1897 flow [2023-08-27 05:10:11,311 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 698 places, 770 transitions, 1897 flow [2023-08-27 05:10:11,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 698 places, 770 transitions, 1897 flow [2023-08-27 05:10:11,628 INFO L124 PetriNetUnfolderBase]: 192/1475 cut-off events. [2023-08-27 05:10:11,628 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-27 05:10:11,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1680 conditions, 1475 events. 192/1475 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 5418 event pairs, 0 based on Foata normal form. 0/1145 useless extension candidates. Maximal degree in co-relation 1556. Up to 36 conditions per place. [2023-08-27 05:10:11,873 INFO L119 LiptonReduction]: Number of co-enabled transitions 504560 [2023-08-27 05:10:19,303 INFO L134 LiptonReduction]: Checked pairs total: 1322304 [2023-08-27 05:10:19,304 INFO L136 LiptonReduction]: Total number of compositions: 608 [2023-08-27 05:10:19,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:10:19,305 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:10:19,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:10:19,370 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:10:19,370 INFO L124 PetriNetUnfolderBase]: 147/582 cut-off events. [2023-08-27 05:10:19,370 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-27 05:10:19,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:10:19,371 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 05:10:19,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:10:19,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:10:19,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1421298880, now seen corresponding path program 1 times [2023-08-27 05:10:19,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:10:19,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532332294] [2023-08-27 05:10:19,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:10:19,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:10:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:19,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:10:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:19,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:10:19,452 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:10:19,452 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:10:19,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-27 05:10:19,453 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:10:19,453 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:10:19,453 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:10:19,453 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-27 05:10:19,503 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:10:19,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 735 places, 811 transitions, 2018 flow [2023-08-27 05:10:19,942 INFO L124 PetriNetUnfolderBase]: 203/1558 cut-off events. [2023-08-27 05:10:19,943 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-27 05:10:19,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1784 conditions, 1558 events. 203/1558 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 5738 event pairs, 0 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1659. Up to 38 conditions per place. [2023-08-27 05:10:19,998 INFO L82 GeneralOperation]: Start removeDead. Operand has 735 places, 811 transitions, 2018 flow [2023-08-27 05:10:20,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 735 places, 811 transitions, 2018 flow [2023-08-27 05:10:20,016 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:10:20,016 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 735 places, 811 transitions, 2018 flow [2023-08-27 05:10:20,016 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 735 places, 811 transitions, 2018 flow [2023-08-27 05:10:20,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 735 places, 811 transitions, 2018 flow [2023-08-27 05:10:20,364 INFO L124 PetriNetUnfolderBase]: 203/1558 cut-off events. [2023-08-27 05:10:20,364 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-27 05:10:20,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1784 conditions, 1558 events. 203/1558 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 5738 event pairs, 0 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 1659. Up to 38 conditions per place. [2023-08-27 05:10:20,555 INFO L119 LiptonReduction]: Number of co-enabled transitions 563760 [2023-08-27 05:10:28,503 INFO L134 LiptonReduction]: Checked pairs total: 1471781 [2023-08-27 05:10:28,503 INFO L136 LiptonReduction]: Total number of compositions: 633 [2023-08-27 05:10:28,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:10:28,504 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:10:28,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:10:28,575 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:10:28,575 INFO L124 PetriNetUnfolderBase]: 156/617 cut-off events. [2023-08-27 05:10:28,575 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-27 05:10:28,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:10:28,575 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 05:10:28,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:10:28,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:10:28,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1787070363, now seen corresponding path program 1 times [2023-08-27 05:10:28,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:10:28,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906166809] [2023-08-27 05:10:28,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:10:28,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:10:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:28,618 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:10:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:28,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:10:28,653 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:10:28,653 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:10:28,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 05:10:28,654 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:10:28,654 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:10:28,654 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:10:28,654 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-27 05:10:28,761 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:10:28,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 772 places, 852 transitions, 2141 flow [2023-08-27 05:10:29,181 INFO L124 PetriNetUnfolderBase]: 214/1641 cut-off events. [2023-08-27 05:10:29,181 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-27 05:10:29,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1889 conditions, 1641 events. 214/1641 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 6047 event pairs, 0 based on Foata normal form. 0/1273 useless extension candidates. Maximal degree in co-relation 1763. Up to 40 conditions per place. [2023-08-27 05:10:29,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 772 places, 852 transitions, 2141 flow [2023-08-27 05:10:29,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 772 places, 852 transitions, 2141 flow [2023-08-27 05:10:29,263 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:10:29,263 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 772 places, 852 transitions, 2141 flow [2023-08-27 05:10:29,263 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 772 places, 852 transitions, 2141 flow [2023-08-27 05:10:29,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 772 places, 852 transitions, 2141 flow [2023-08-27 05:10:29,650 INFO L124 PetriNetUnfolderBase]: 214/1641 cut-off events. [2023-08-27 05:10:29,650 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-27 05:10:29,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1889 conditions, 1641 events. 214/1641 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 6047 event pairs, 0 based on Foata normal form. 0/1273 useless extension candidates. Maximal degree in co-relation 1763. Up to 40 conditions per place. [2023-08-27 05:10:29,868 INFO L119 LiptonReduction]: Number of co-enabled transitions 626240 [2023-08-27 05:10:37,991 INFO L134 LiptonReduction]: Checked pairs total: 1647591 [2023-08-27 05:10:37,991 INFO L136 LiptonReduction]: Total number of compositions: 660 [2023-08-27 05:10:37,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:10:37,993 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:10:37,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:10:38,075 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:10:38,075 INFO L124 PetriNetUnfolderBase]: 165/652 cut-off events. [2023-08-27 05:10:38,075 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-27 05:10:38,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:10:38,075 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 05:10:38,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:10:38,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:10:38,076 INFO L85 PathProgramCache]: Analyzing trace with hash -792535928, now seen corresponding path program 1 times [2023-08-27 05:10:38,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:10:38,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345078508] [2023-08-27 05:10:38,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:10:38,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:10:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:38,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:10:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:38,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:10:38,141 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:10:38,141 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:10:38,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-27 05:10:38,141 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:10:38,141 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:10:38,141 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:10:38,141 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-27 05:10:38,268 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:10:38,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 809 places, 893 transitions, 2266 flow [2023-08-27 05:10:38,802 INFO L124 PetriNetUnfolderBase]: 225/1724 cut-off events. [2023-08-27 05:10:38,802 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-27 05:10:38,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 1724 events. 225/1724 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 6306 event pairs, 0 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 1868. Up to 42 conditions per place. [2023-08-27 05:10:38,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 809 places, 893 transitions, 2266 flow [2023-08-27 05:10:38,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 809 places, 893 transitions, 2266 flow [2023-08-27 05:10:38,891 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:10:38,891 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 809 places, 893 transitions, 2266 flow [2023-08-27 05:10:38,891 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 809 places, 893 transitions, 2266 flow [2023-08-27 05:10:38,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 809 places, 893 transitions, 2266 flow [2023-08-27 05:10:39,325 INFO L124 PetriNetUnfolderBase]: 225/1724 cut-off events. [2023-08-27 05:10:39,325 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-27 05:10:39,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 1724 events. 225/1724 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 6306 event pairs, 0 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 1868. Up to 42 conditions per place. [2023-08-27 05:10:39,577 INFO L119 LiptonReduction]: Number of co-enabled transitions 692000 [2023-08-27 05:10:48,422 INFO L134 LiptonReduction]: Checked pairs total: 1807238 [2023-08-27 05:10:48,423 INFO L136 LiptonReduction]: Total number of compositions: 699 [2023-08-27 05:10:48,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:10:48,424 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:10:48,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:10:48,521 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:10:48,521 INFO L124 PetriNetUnfolderBase]: 176/694 cut-off events. [2023-08-27 05:10:48,521 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-27 05:10:48,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:10:48,521 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 05:10:48,521 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:10:48,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:10:48,522 INFO L85 PathProgramCache]: Analyzing trace with hash 447760199, now seen corresponding path program 1 times [2023-08-27 05:10:48,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:10:48,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426786232] [2023-08-27 05:10:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:10:48,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:10:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:48,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:10:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:48,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:10:48,589 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:10:48,589 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:10:48,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-27 05:10:48,590 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:10:48,590 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:10:48,590 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:10:48,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-27 05:10:48,649 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:10:48,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 846 places, 934 transitions, 2393 flow [2023-08-27 05:10:49,179 INFO L124 PetriNetUnfolderBase]: 236/1807 cut-off events. [2023-08-27 05:10:49,180 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-27 05:10:49,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2102 conditions, 1807 events. 236/1807 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 6673 event pairs, 0 based on Foata normal form. 0/1401 useless extension candidates. Maximal degree in co-relation 1974. Up to 44 conditions per place. [2023-08-27 05:10:49,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 846 places, 934 transitions, 2393 flow [2023-08-27 05:10:49,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 846 places, 934 transitions, 2393 flow [2023-08-27 05:10:49,280 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:10:49,280 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 846 places, 934 transitions, 2393 flow [2023-08-27 05:10:49,280 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 846 places, 934 transitions, 2393 flow [2023-08-27 05:10:49,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 846 places, 934 transitions, 2393 flow [2023-08-27 05:10:49,869 INFO L124 PetriNetUnfolderBase]: 236/1807 cut-off events. [2023-08-27 05:10:49,869 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-27 05:10:49,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2102 conditions, 1807 events. 236/1807 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 6673 event pairs, 0 based on Foata normal form. 0/1401 useless extension candidates. Maximal degree in co-relation 1974. Up to 44 conditions per place. [2023-08-27 05:10:50,077 INFO L119 LiptonReduction]: Number of co-enabled transitions 761040 [2023-08-27 05:10:59,070 INFO L134 LiptonReduction]: Checked pairs total: 2013855 [2023-08-27 05:10:59,071 INFO L136 LiptonReduction]: Total number of compositions: 734 [2023-08-27 05:10:59,072 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:10:59,072 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:10:59,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:10:59,168 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:10:59,168 INFO L124 PetriNetUnfolderBase]: 185/726 cut-off events. [2023-08-27 05:10:59,168 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-27 05:10:59,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:10:59,168 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 05:10:59,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:10:59,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:10:59,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1346401894, now seen corresponding path program 1 times [2023-08-27 05:10:59,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:10:59,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495774716] [2023-08-27 05:10:59,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:10:59,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:10:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:59,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:10:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:10:59,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:10:59,235 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:10:59,235 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:10:59,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-27 05:10:59,235 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:10:59,236 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:10:59,236 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:10:59,236 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-08-27 05:10:59,295 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:10:59,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 883 places, 975 transitions, 2522 flow [2023-08-27 05:10:59,959 INFO L124 PetriNetUnfolderBase]: 247/1890 cut-off events. [2023-08-27 05:10:59,959 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-27 05:11:00,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2210 conditions, 1890 events. 247/1890 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 6931 event pairs, 0 based on Foata normal form. 0/1465 useless extension candidates. Maximal degree in co-relation 2081. Up to 46 conditions per place. [2023-08-27 05:11:00,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 883 places, 975 transitions, 2522 flow [2023-08-27 05:11:00,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 883 places, 975 transitions, 2522 flow [2023-08-27 05:11:00,175 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:11:00,175 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 883 places, 975 transitions, 2522 flow [2023-08-27 05:11:00,175 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 883 places, 975 transitions, 2522 flow [2023-08-27 05:11:00,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 883 places, 975 transitions, 2522 flow [2023-08-27 05:11:00,708 INFO L124 PetriNetUnfolderBase]: 247/1890 cut-off events. [2023-08-27 05:11:00,708 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-27 05:11:00,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2210 conditions, 1890 events. 247/1890 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 6931 event pairs, 0 based on Foata normal form. 0/1465 useless extension candidates. Maximal degree in co-relation 2081. Up to 46 conditions per place. [2023-08-27 05:11:01,017 INFO L119 LiptonReduction]: Number of co-enabled transitions 833360 [2023-08-27 05:11:10,674 INFO L134 LiptonReduction]: Checked pairs total: 2477401 [2023-08-27 05:11:10,674 INFO L136 LiptonReduction]: Total number of compositions: 760 [2023-08-27 05:11:10,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:11:10,676 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:11:10,676 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:11:10,789 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:11:10,789 INFO L124 PetriNetUnfolderBase]: 172/739 cut-off events. [2023-08-27 05:11:10,790 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-27 05:11:10,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:11:10,790 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 05:11:10,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:11:10,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:11:10,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1184500271, now seen corresponding path program 1 times [2023-08-27 05:11:10,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:11:10,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744080834] [2023-08-27 05:11:10,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:11:10,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:11:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:11:10,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:11:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:11:10,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:11:10,864 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:11:10,864 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:11:10,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-27 05:11:10,865 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:11:10,865 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:11:10,865 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:11:10,865 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-08-27 05:11:10,934 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:11:10,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 920 places, 1016 transitions, 2653 flow [2023-08-27 05:11:11,571 INFO L124 PetriNetUnfolderBase]: 258/1973 cut-off events. [2023-08-27 05:11:11,572 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-27 05:11:11,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2319 conditions, 1973 events. 258/1973 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7272 event pairs, 0 based on Foata normal form. 0/1529 useless extension candidates. Maximal degree in co-relation 2189. Up to 48 conditions per place. [2023-08-27 05:11:11,656 INFO L82 GeneralOperation]: Start removeDead. Operand has 920 places, 1016 transitions, 2653 flow [2023-08-27 05:11:11,681 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 920 places, 1016 transitions, 2653 flow [2023-08-27 05:11:11,681 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:11:11,682 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 920 places, 1016 transitions, 2653 flow [2023-08-27 05:11:11,682 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 920 places, 1016 transitions, 2653 flow [2023-08-27 05:11:11,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 920 places, 1016 transitions, 2653 flow [2023-08-27 05:11:12,289 INFO L124 PetriNetUnfolderBase]: 258/1973 cut-off events. [2023-08-27 05:11:12,290 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-27 05:11:12,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2319 conditions, 1973 events. 258/1973 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7272 event pairs, 0 based on Foata normal form. 0/1529 useless extension candidates. Maximal degree in co-relation 2189. Up to 48 conditions per place. [2023-08-27 05:11:12,638 INFO L119 LiptonReduction]: Number of co-enabled transitions 908960 [2023-08-27 05:11:22,515 INFO L134 LiptonReduction]: Checked pairs total: 2418606 [2023-08-27 05:11:22,515 INFO L136 LiptonReduction]: Total number of compositions: 799 [2023-08-27 05:11:22,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:11:22,516 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:11:22,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:11:22,668 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:11:22,668 INFO L124 PetriNetUnfolderBase]: 203/795 cut-off events. [2023-08-27 05:11:22,669 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-27 05:11:22,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:11:22,669 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 05:11:22,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:11:22,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:11:22,669 INFO L85 PathProgramCache]: Analyzing trace with hash 982940470, now seen corresponding path program 1 times [2023-08-27 05:11:22,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:11:22,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162763099] [2023-08-27 05:11:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:11:22,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:11:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:11:22,700 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:11:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:11:22,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:11:22,739 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:11:22,739 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:11:22,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-27 05:11:22,739 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:11:22,739 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:11:22,739 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:11:22,739 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-08-27 05:11:22,802 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:11:22,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 957 places, 1057 transitions, 2786 flow [2023-08-27 05:11:23,454 INFO L124 PetriNetUnfolderBase]: 269/2056 cut-off events. [2023-08-27 05:11:23,454 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-27 05:11:23,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2429 conditions, 2056 events. 269/2056 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7633 event pairs, 0 based on Foata normal form. 0/1593 useless extension candidates. Maximal degree in co-relation 2298. Up to 50 conditions per place. [2023-08-27 05:11:23,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 957 places, 1057 transitions, 2786 flow [2023-08-27 05:11:23,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 957 places, 1057 transitions, 2786 flow [2023-08-27 05:11:23,590 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:11:23,591 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 957 places, 1057 transitions, 2786 flow [2023-08-27 05:11:23,591 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 957 places, 1057 transitions, 2786 flow [2023-08-27 05:11:23,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 957 places, 1057 transitions, 2786 flow [2023-08-27 05:11:24,352 INFO L124 PetriNetUnfolderBase]: 269/2056 cut-off events. [2023-08-27 05:11:24,353 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-27 05:11:24,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2429 conditions, 2056 events. 269/2056 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7633 event pairs, 0 based on Foata normal form. 0/1593 useless extension candidates. Maximal degree in co-relation 2298. Up to 50 conditions per place. [2023-08-27 05:11:24,635 INFO L119 LiptonReduction]: Number of co-enabled transitions 987840 [2023-08-27 05:11:34,733 INFO L134 LiptonReduction]: Checked pairs total: 2635178 [2023-08-27 05:11:34,733 INFO L136 LiptonReduction]: Total number of compositions: 816 [2023-08-27 05:11:34,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:11:34,735 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:11:34,735 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:11:34,896 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:11:34,896 INFO L124 PetriNetUnfolderBase]: 212/834 cut-off events. [2023-08-27 05:11:34,896 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-27 05:11:34,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:11:34,896 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 05:11:34,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:11:34,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:11:34,897 INFO L85 PathProgramCache]: Analyzing trace with hash 895957735, now seen corresponding path program 1 times [2023-08-27 05:11:34,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:11:34,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319710927] [2023-08-27 05:11:34,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:11:34,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:11:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:11:34,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:11:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:11:34,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:11:34,984 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:11:34,984 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:11:34,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-27 05:11:34,984 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:11:34,984 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:11:34,985 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:11:34,985 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-08-27 05:11:35,050 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:11:35,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 994 places, 1098 transitions, 2921 flow [2023-08-27 05:11:35,879 INFO L124 PetriNetUnfolderBase]: 280/2139 cut-off events. [2023-08-27 05:11:35,880 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-27 05:11:35,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2540 conditions, 2139 events. 280/2139 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7912 event pairs, 0 based on Foata normal form. 0/1657 useless extension candidates. Maximal degree in co-relation 2408. Up to 52 conditions per place. [2023-08-27 05:11:35,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 994 places, 1098 transitions, 2921 flow [2023-08-27 05:11:35,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 994 places, 1098 transitions, 2921 flow [2023-08-27 05:11:35,977 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:11:35,977 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 994 places, 1098 transitions, 2921 flow [2023-08-27 05:11:35,977 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 994 places, 1098 transitions, 2921 flow [2023-08-27 05:11:35,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 994 places, 1098 transitions, 2921 flow [2023-08-27 05:11:36,670 INFO L124 PetriNetUnfolderBase]: 280/2139 cut-off events. [2023-08-27 05:11:36,670 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-27 05:11:36,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2540 conditions, 2139 events. 280/2139 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7912 event pairs, 0 based on Foata normal form. 0/1657 useless extension candidates. Maximal degree in co-relation 2408. Up to 52 conditions per place. [2023-08-27 05:11:37,085 INFO L119 LiptonReduction]: Number of co-enabled transitions 1070000 [2023-08-27 05:11:47,887 INFO L134 LiptonReduction]: Checked pairs total: 2834924 [2023-08-27 05:11:47,887 INFO L136 LiptonReduction]: Total number of compositions: 858 [2023-08-27 05:11:47,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:11:47,889 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:11:47,889 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:11:48,016 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:11:48,016 INFO L124 PetriNetUnfolderBase]: 196/840 cut-off events. [2023-08-27 05:11:48,016 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-27 05:11:48,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:11:48,017 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 05:11:48,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:11:48,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:11:48,017 INFO L85 PathProgramCache]: Analyzing trace with hash -199589341, now seen corresponding path program 1 times [2023-08-27 05:11:48,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:11:48,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045790377] [2023-08-27 05:11:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:11:48,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:11:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:11:48,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:11:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:11:48,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:11:48,129 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:11:48,129 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:11:48,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-27 05:11:48,129 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:11:48,129 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:11:48,129 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:11:48,129 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-08-27 05:11:48,199 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:11:48,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1031 places, 1139 transitions, 3058 flow [2023-08-27 05:11:48,993 INFO L124 PetriNetUnfolderBase]: 291/2222 cut-off events. [2023-08-27 05:11:48,993 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-27 05:11:49,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2652 conditions, 2222 events. 291/2222 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8170 event pairs, 0 based on Foata normal form. 0/1721 useless extension candidates. Maximal degree in co-relation 2519. Up to 54 conditions per place. [2023-08-27 05:11:49,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 1031 places, 1139 transitions, 3058 flow [2023-08-27 05:11:49,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1031 places, 1139 transitions, 3058 flow [2023-08-27 05:11:49,151 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:11:49,151 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1031 places, 1139 transitions, 3058 flow [2023-08-27 05:11:49,151 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1031 places, 1139 transitions, 3058 flow [2023-08-27 05:11:49,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1031 places, 1139 transitions, 3058 flow [2023-08-27 05:11:49,922 INFO L124 PetriNetUnfolderBase]: 291/2222 cut-off events. [2023-08-27 05:11:49,923 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-27 05:11:50,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2652 conditions, 2222 events. 291/2222 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8170 event pairs, 0 based on Foata normal form. 0/1721 useless extension candidates. Maximal degree in co-relation 2519. Up to 54 conditions per place. [2023-08-27 05:11:50,312 INFO L119 LiptonReduction]: Number of co-enabled transitions 1155440 [2023-08-27 05:12:01,966 INFO L134 LiptonReduction]: Checked pairs total: 3454040 [2023-08-27 05:12:01,966 INFO L136 LiptonReduction]: Total number of compositions: 892 [2023-08-27 05:12:01,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:12:01,968 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:12:01,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:12:02,119 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:12:02,119 INFO L124 PetriNetUnfolderBase]: 230/901 cut-off events. [2023-08-27 05:12:02,119 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-27 05:12:02,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:12:02,120 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 05:12:02,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:12:02,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:12:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1513098823, now seen corresponding path program 1 times [2023-08-27 05:12:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:12:02,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051178975] [2023-08-27 05:12:02,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:12:02,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:12:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:12:02,163 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:12:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:12:02,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:12:02,205 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:12:02,205 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:12:02,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-27 05:12:02,205 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:12:02,206 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:12:02,206 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:12:02,206 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-08-27 05:12:02,333 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:12:02,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1068 places, 1180 transitions, 3197 flow [2023-08-27 05:12:03,201 INFO L124 PetriNetUnfolderBase]: 302/2305 cut-off events. [2023-08-27 05:12:03,201 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-27 05:12:03,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2765 conditions, 2305 events. 302/2305 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8529 event pairs, 0 based on Foata normal form. 0/1785 useless extension candidates. Maximal degree in co-relation 2631. Up to 56 conditions per place. [2023-08-27 05:12:03,333 INFO L82 GeneralOperation]: Start removeDead. Operand has 1068 places, 1180 transitions, 3197 flow [2023-08-27 05:12:03,373 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1068 places, 1180 transitions, 3197 flow [2023-08-27 05:12:03,373 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:12:03,373 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1068 places, 1180 transitions, 3197 flow [2023-08-27 05:12:03,374 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1068 places, 1180 transitions, 3197 flow [2023-08-27 05:12:03,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1068 places, 1180 transitions, 3197 flow [2023-08-27 05:12:04,273 INFO L124 PetriNetUnfolderBase]: 302/2305 cut-off events. [2023-08-27 05:12:04,274 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-27 05:12:04,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2765 conditions, 2305 events. 302/2305 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8529 event pairs, 0 based on Foata normal form. 0/1785 useless extension candidates. Maximal degree in co-relation 2631. Up to 56 conditions per place. [2023-08-27 05:12:04,645 INFO L119 LiptonReduction]: Number of co-enabled transitions 1244160 [2023-08-27 05:12:16,203 INFO L134 LiptonReduction]: Checked pairs total: 3323619 [2023-08-27 05:12:16,203 INFO L136 LiptonReduction]: Total number of compositions: 921 [2023-08-27 05:12:16,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:12:16,204 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:12:16,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:12:16,362 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:12:16,363 INFO L124 PetriNetUnfolderBase]: 239/939 cut-off events. [2023-08-27 05:12:16,363 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-27 05:12:16,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:12:16,363 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 05:12:16,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:12:16,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:12:16,363 INFO L85 PathProgramCache]: Analyzing trace with hash 307097021, now seen corresponding path program 1 times [2023-08-27 05:12:16,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:12:16,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173160962] [2023-08-27 05:12:16,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:12:16,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:12:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:12:16,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:12:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:12:16,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:12:16,445 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:12:16,445 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:12:16,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-27 05:12:16,445 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:12:16,445 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:12:16,446 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:12:16,446 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-08-27 05:12:16,518 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:12:16,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1105 places, 1221 transitions, 3338 flow [2023-08-27 05:12:17,639 INFO L124 PetriNetUnfolderBase]: 313/2388 cut-off events. [2023-08-27 05:12:17,639 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-27 05:12:17,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2879 conditions, 2388 events. 313/2388 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8832 event pairs, 0 based on Foata normal form. 0/1849 useless extension candidates. Maximal degree in co-relation 2744. Up to 58 conditions per place. [2023-08-27 05:12:17,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 1105 places, 1221 transitions, 3338 flow [2023-08-27 05:12:17,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1105 places, 1221 transitions, 3338 flow [2023-08-27 05:12:17,821 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:12:17,821 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1105 places, 1221 transitions, 3338 flow [2023-08-27 05:12:17,821 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1105 places, 1221 transitions, 3338 flow [2023-08-27 05:12:17,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1105 places, 1221 transitions, 3338 flow [2023-08-27 05:12:18,824 INFO L124 PetriNetUnfolderBase]: 313/2388 cut-off events. [2023-08-27 05:12:18,824 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-27 05:12:18,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2879 conditions, 2388 events. 313/2388 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8832 event pairs, 0 based on Foata normal form. 0/1849 useless extension candidates. Maximal degree in co-relation 2744. Up to 58 conditions per place. [2023-08-27 05:12:19,210 INFO L119 LiptonReduction]: Number of co-enabled transitions 1336160 [2023-08-27 05:12:31,557 INFO L134 LiptonReduction]: Checked pairs total: 3578049 [2023-08-27 05:12:31,557 INFO L136 LiptonReduction]: Total number of compositions: 944 [2023-08-27 05:12:31,558 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:12:31,559 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:12:31,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:12:31,730 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:12:31,730 INFO L124 PetriNetUnfolderBase]: 248/974 cut-off events. [2023-08-27 05:12:31,730 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-27 05:12:31,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:12:31,730 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 05:12:31,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:12:31,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:12:31,731 INFO L85 PathProgramCache]: Analyzing trace with hash 332362555, now seen corresponding path program 1 times [2023-08-27 05:12:31,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:12:31,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42322134] [2023-08-27 05:12:31,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:12:31,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:12:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:12:31,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:12:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:12:31,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:12:31,817 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:12:31,817 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:12:31,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-27 05:12:31,817 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:12:31,817 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:12:31,817 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:12:31,818 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-08-27 05:12:31,891 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:12:31,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1142 places, 1262 transitions, 3481 flow [2023-08-27 05:12:32,921 INFO L124 PetriNetUnfolderBase]: 324/2471 cut-off events. [2023-08-27 05:12:32,921 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-27 05:12:33,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2994 conditions, 2471 events. 324/2471 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9136 event pairs, 0 based on Foata normal form. 0/1913 useless extension candidates. Maximal degree in co-relation 2858. Up to 60 conditions per place. [2023-08-27 05:12:33,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 1142 places, 1262 transitions, 3481 flow [2023-08-27 05:12:33,069 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1142 places, 1262 transitions, 3481 flow [2023-08-27 05:12:33,069 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:12:33,069 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1142 places, 1262 transitions, 3481 flow [2023-08-27 05:12:33,070 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1142 places, 1262 transitions, 3481 flow [2023-08-27 05:12:33,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1142 places, 1262 transitions, 3481 flow [2023-08-27 05:12:34,002 INFO L124 PetriNetUnfolderBase]: 324/2471 cut-off events. [2023-08-27 05:12:34,002 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-27 05:12:34,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2994 conditions, 2471 events. 324/2471 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9136 event pairs, 0 based on Foata normal form. 0/1913 useless extension candidates. Maximal degree in co-relation 2858. Up to 60 conditions per place. [2023-08-27 05:12:34,573 INFO L119 LiptonReduction]: Number of co-enabled transitions 1431440 [2023-08-27 05:12:47,359 INFO L134 LiptonReduction]: Checked pairs total: 3805361 [2023-08-27 05:12:47,360 INFO L136 LiptonReduction]: Total number of compositions: 982 [2023-08-27 05:12:47,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:12:47,361 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:12:47,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:12:47,571 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:12:47,571 INFO L124 PetriNetUnfolderBase]: 257/1006 cut-off events. [2023-08-27 05:12:47,571 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-27 05:12:47,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:12:47,571 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 05:12:47,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:12:47,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:12:47,572 INFO L85 PathProgramCache]: Analyzing trace with hash -222232594, now seen corresponding path program 1 times [2023-08-27 05:12:47,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:12:47,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771114039] [2023-08-27 05:12:47,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:12:47,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:12:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:12:47,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:12:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:12:47,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:12:47,659 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:12:47,659 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:12:47,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-27 05:12:47,659 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:12:47,660 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:12:47,660 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:12:47,660 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-08-27 05:12:47,746 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:12:47,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1179 places, 1303 transitions, 3626 flow [2023-08-27 05:12:48,987 INFO L124 PetriNetUnfolderBase]: 335/2554 cut-off events. [2023-08-27 05:12:48,987 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-27 05:12:49,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3110 conditions, 2554 events. 335/2554 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9470 event pairs, 0 based on Foata normal form. 0/1977 useless extension candidates. Maximal degree in co-relation 2973. Up to 62 conditions per place. [2023-08-27 05:12:49,098 INFO L82 GeneralOperation]: Start removeDead. Operand has 1179 places, 1303 transitions, 3626 flow [2023-08-27 05:12:49,139 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1179 places, 1303 transitions, 3626 flow [2023-08-27 05:12:49,140 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:12:49,140 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1179 places, 1303 transitions, 3626 flow [2023-08-27 05:12:49,140 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1179 places, 1303 transitions, 3626 flow [2023-08-27 05:12:49,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1179 places, 1303 transitions, 3626 flow [2023-08-27 05:12:50,168 INFO L124 PetriNetUnfolderBase]: 335/2554 cut-off events. [2023-08-27 05:12:50,168 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-27 05:12:50,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3110 conditions, 2554 events. 335/2554 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9470 event pairs, 0 based on Foata normal form. 0/1977 useless extension candidates. Maximal degree in co-relation 2973. Up to 62 conditions per place. [2023-08-27 05:12:50,780 INFO L119 LiptonReduction]: Number of co-enabled transitions 1530000 [2023-08-27 05:13:04,064 INFO L134 LiptonReduction]: Checked pairs total: 4062480 [2023-08-27 05:13:04,064 INFO L136 LiptonReduction]: Total number of compositions: 1001 [2023-08-27 05:13:04,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:13:04,066 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:13:04,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:13:04,253 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:13:04,253 INFO L124 PetriNetUnfolderBase]: 236/1011 cut-off events. [2023-08-27 05:13:04,253 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-27 05:13:04,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:13:04,253 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 05:13:04,253 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:13:04,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:13:04,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1475369656, now seen corresponding path program 1 times [2023-08-27 05:13:04,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:13:04,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873450585] [2023-08-27 05:13:04,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:13:04,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:13:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:13:04,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:13:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:13:04,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:13:04,340 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:13:04,341 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:13:04,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-27 05:13:04,341 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:13:04,341 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:13:04,341 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:13:04,341 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-08-27 05:13:04,419 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:13:04,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1216 places, 1344 transitions, 3773 flow [2023-08-27 05:13:05,627 INFO L124 PetriNetUnfolderBase]: 346/2637 cut-off events. [2023-08-27 05:13:05,627 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-27 05:13:05,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3227 conditions, 2637 events. 346/2637 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9779 event pairs, 0 based on Foata normal form. 0/2041 useless extension candidates. Maximal degree in co-relation 3089. Up to 64 conditions per place. [2023-08-27 05:13:05,805 INFO L82 GeneralOperation]: Start removeDead. Operand has 1216 places, 1344 transitions, 3773 flow [2023-08-27 05:13:06,116 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1216 places, 1344 transitions, 3773 flow [2023-08-27 05:13:06,116 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:13:06,116 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1216 places, 1344 transitions, 3773 flow [2023-08-27 05:13:06,116 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1216 places, 1344 transitions, 3773 flow [2023-08-27 05:13:06,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1216 places, 1344 transitions, 3773 flow [2023-08-27 05:13:07,396 INFO L124 PetriNetUnfolderBase]: 346/2637 cut-off events. [2023-08-27 05:13:07,396 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-27 05:13:07,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3227 conditions, 2637 events. 346/2637 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9779 event pairs, 0 based on Foata normal form. 0/2041 useless extension candidates. Maximal degree in co-relation 3089. Up to 64 conditions per place. [2023-08-27 05:13:08,054 INFO L119 LiptonReduction]: Number of co-enabled transitions 1631840 [2023-08-27 05:13:21,570 INFO L134 LiptonReduction]: Checked pairs total: 4372653 [2023-08-27 05:13:21,570 INFO L136 LiptonReduction]: Total number of compositions: 1043 [2023-08-27 05:13:21,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:13:21,572 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:13:21,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:13:21,869 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:13:21,869 INFO L124 PetriNetUnfolderBase]: 275/1079 cut-off events. [2023-08-27 05:13:21,869 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-27 05:13:21,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:13:21,869 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 05:13:21,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:13:21,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:13:21,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1137312381, now seen corresponding path program 1 times [2023-08-27 05:13:21,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:13:21,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814088316] [2023-08-27 05:13:21,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:13:21,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:13:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:13:21,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:13:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:13:21,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:13:21,995 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:13:21,995 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:13:21,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-27 05:13:21,995 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:13:21,995 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:13:21,996 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:13:21,996 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-08-27 05:13:22,080 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:13:22,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1253 places, 1385 transitions, 3922 flow [2023-08-27 05:13:23,752 INFO L124 PetriNetUnfolderBase]: 357/2720 cut-off events. [2023-08-27 05:13:23,752 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-27 05:13:23,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3345 conditions, 2720 events. 357/2720 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10058 event pairs, 0 based on Foata normal form. 0/2105 useless extension candidates. Maximal degree in co-relation 3206. Up to 66 conditions per place. [2023-08-27 05:13:23,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 1253 places, 1385 transitions, 3922 flow [2023-08-27 05:13:23,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1253 places, 1385 transitions, 3922 flow [2023-08-27 05:13:23,920 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:13:23,920 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1253 places, 1385 transitions, 3922 flow [2023-08-27 05:13:23,920 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1253 places, 1385 transitions, 3922 flow [2023-08-27 05:13:23,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1253 places, 1385 transitions, 3922 flow [2023-08-27 05:13:25,248 INFO L124 PetriNetUnfolderBase]: 357/2720 cut-off events. [2023-08-27 05:13:25,248 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-27 05:13:25,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3345 conditions, 2720 events. 357/2720 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10058 event pairs, 0 based on Foata normal form. 0/2105 useless extension candidates. Maximal degree in co-relation 3206. Up to 66 conditions per place. [2023-08-27 05:13:25,946 INFO L119 LiptonReduction]: Number of co-enabled transitions 1736960 [2023-08-27 05:13:40,023 INFO L134 LiptonReduction]: Checked pairs total: 4633680 [2023-08-27 05:13:40,023 INFO L136 LiptonReduction]: Total number of compositions: 1082 [2023-08-27 05:13:40,024 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:13:40,025 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:13:40,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:13:40,251 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:13:40,252 INFO L124 PetriNetUnfolderBase]: 284/1114 cut-off events. [2023-08-27 05:13:40,252 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-27 05:13:40,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:13:40,252 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 05:13:40,252 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:13:40,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:13:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2000639131, now seen corresponding path program 1 times [2023-08-27 05:13:40,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:13:40,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567743430] [2023-08-27 05:13:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:13:40,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:13:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:13:40,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:13:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:13:40,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:13:40,351 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:13:40,351 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:13:40,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-27 05:13:40,352 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:13:40,352 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:13:40,352 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:13:40,352 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-08-27 05:13:40,437 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:13:40,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1290 places, 1426 transitions, 4073 flow [2023-08-27 05:13:42,095 INFO L124 PetriNetUnfolderBase]: 368/2803 cut-off events. [2023-08-27 05:13:42,095 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-27 05:13:42,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3464 conditions, 2803 events. 368/2803 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10389 event pairs, 0 based on Foata normal form. 0/2169 useless extension candidates. Maximal degree in co-relation 3324. Up to 68 conditions per place. [2023-08-27 05:13:42,239 INFO L82 GeneralOperation]: Start removeDead. Operand has 1290 places, 1426 transitions, 4073 flow [2023-08-27 05:13:42,279 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1290 places, 1426 transitions, 4073 flow [2023-08-27 05:13:42,280 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:13:42,280 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1290 places, 1426 transitions, 4073 flow [2023-08-27 05:13:42,280 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1290 places, 1426 transitions, 4073 flow [2023-08-27 05:13:42,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1290 places, 1426 transitions, 4073 flow [2023-08-27 05:13:43,728 INFO L124 PetriNetUnfolderBase]: 368/2803 cut-off events. [2023-08-27 05:13:43,729 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-27 05:13:43,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3464 conditions, 2803 events. 368/2803 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10389 event pairs, 0 based on Foata normal form. 0/2169 useless extension candidates. Maximal degree in co-relation 3324. Up to 68 conditions per place. [2023-08-27 05:13:44,414 INFO L119 LiptonReduction]: Number of co-enabled transitions 1845360 [2023-08-27 05:13:59,257 INFO L134 LiptonReduction]: Checked pairs total: 4912655 [2023-08-27 05:13:59,257 INFO L136 LiptonReduction]: Total number of compositions: 1114 [2023-08-27 05:13:59,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:13:59,259 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:13:59,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:13:59,547 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:13:59,547 INFO L124 PetriNetUnfolderBase]: 293/1146 cut-off events. [2023-08-27 05:13:59,547 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-27 05:13:59,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:13:59,547 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 05:13:59,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:13:59,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:13:59,548 INFO L85 PathProgramCache]: Analyzing trace with hash -331599288, now seen corresponding path program 1 times [2023-08-27 05:13:59,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:13:59,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876378628] [2023-08-27 05:13:59,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:13:59,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:13:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:13:59,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:13:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:13:59,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:13:59,654 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:13:59,654 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:13:59,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-27 05:13:59,654 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:13:59,654 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:13:59,654 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:13:59,654 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2023-08-27 05:13:59,742 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:13:59,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1327 places, 1467 transitions, 4226 flow [2023-08-27 05:14:01,252 INFO L124 PetriNetUnfolderBase]: 379/2886 cut-off events. [2023-08-27 05:14:01,253 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-27 05:14:01,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3584 conditions, 2886 events. 379/2886 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10757 event pairs, 0 based on Foata normal form. 0/2233 useless extension candidates. Maximal degree in co-relation 3443. Up to 70 conditions per place. [2023-08-27 05:14:01,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 1327 places, 1467 transitions, 4226 flow [2023-08-27 05:14:01,457 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1327 places, 1467 transitions, 4226 flow [2023-08-27 05:14:01,457 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:14:01,457 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1327 places, 1467 transitions, 4226 flow [2023-08-27 05:14:01,457 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1327 places, 1467 transitions, 4226 flow [2023-08-27 05:14:01,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1327 places, 1467 transitions, 4226 flow [2023-08-27 05:14:02,995 INFO L124 PetriNetUnfolderBase]: 379/2886 cut-off events. [2023-08-27 05:14:02,995 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-27 05:14:03,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3584 conditions, 2886 events. 379/2886 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10757 event pairs, 0 based on Foata normal form. 0/2233 useless extension candidates. Maximal degree in co-relation 3443. Up to 70 conditions per place. [2023-08-27 05:14:03,784 INFO L119 LiptonReduction]: Number of co-enabled transitions 1957040 [2023-08-27 05:14:19,099 INFO L134 LiptonReduction]: Checked pairs total: 5865197 [2023-08-27 05:14:19,099 INFO L136 LiptonReduction]: Total number of compositions: 1121 [2023-08-27 05:14:19,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:14:19,101 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:14:19,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:14:19,437 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:14:19,437 INFO L124 PetriNetUnfolderBase]: 268/1147 cut-off events. [2023-08-27 05:14:19,437 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-27 05:14:19,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:14:19,437 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 05:14:19,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:14:19,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:14:19,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1277623005, now seen corresponding path program 1 times [2023-08-27 05:14:19,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:14:19,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837754277] [2023-08-27 05:14:19,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:14:19,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:14:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:14:19,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:14:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:14:19,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:14:19,544 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:14:19,544 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:14:19,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-27 05:14:19,544 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:14:19,544 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:14:19,544 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:14:19,544 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2023-08-27 05:14:19,632 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:14:19,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1364 places, 1508 transitions, 4381 flow [2023-08-27 05:14:21,355 INFO L124 PetriNetUnfolderBase]: 390/2969 cut-off events. [2023-08-27 05:14:21,355 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-27 05:14:21,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3705 conditions, 2969 events. 390/2969 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11105 event pairs, 0 based on Foata normal form. 0/2297 useless extension candidates. Maximal degree in co-relation 3563. Up to 72 conditions per place. [2023-08-27 05:14:21,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 1364 places, 1508 transitions, 4381 flow [2023-08-27 05:14:21,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1364 places, 1508 transitions, 4381 flow [2023-08-27 05:14:21,564 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:14:21,564 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1364 places, 1508 transitions, 4381 flow [2023-08-27 05:14:21,564 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1364 places, 1508 transitions, 4381 flow [2023-08-27 05:14:21,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1364 places, 1508 transitions, 4381 flow [2023-08-27 05:14:23,217 INFO L124 PetriNetUnfolderBase]: 390/2969 cut-off events. [2023-08-27 05:14:23,217 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-27 05:14:23,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3705 conditions, 2969 events. 390/2969 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11105 event pairs, 0 based on Foata normal form. 0/2297 useless extension candidates. Maximal degree in co-relation 3563. Up to 72 conditions per place. [2023-08-27 05:14:23,992 INFO L119 LiptonReduction]: Number of co-enabled transitions 2072000 [2023-08-27 05:14:39,552 INFO L134 LiptonReduction]: Checked pairs total: 5546002 [2023-08-27 05:14:39,552 INFO L136 LiptonReduction]: Total number of compositions: 1165 [2023-08-27 05:14:39,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:14:39,554 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:14:39,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:14:39,838 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:14:39,838 INFO L124 PetriNetUnfolderBase]: 311/1216 cut-off events. [2023-08-27 05:14:39,838 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-27 05:14:39,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:14:39,839 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 05:14:39,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:14:39,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:14:39,839 INFO L85 PathProgramCache]: Analyzing trace with hash 317058299, now seen corresponding path program 1 times [2023-08-27 05:14:39,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:14:39,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451382228] [2023-08-27 05:14:39,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:14:39,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:14:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:14:39,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:14:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:14:39,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:14:39,954 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:14:39,954 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:14:39,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-27 05:14:39,954 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:14:39,955 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:14:39,955 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:14:39,955 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2023-08-27 05:14:40,048 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:14:40,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1401 places, 1549 transitions, 4538 flow [2023-08-27 05:14:42,064 INFO L124 PetriNetUnfolderBase]: 401/3052 cut-off events. [2023-08-27 05:14:42,064 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-27 05:14:42,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3827 conditions, 3052 events. 401/3052 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11365 event pairs, 0 based on Foata normal form. 0/2361 useless extension candidates. Maximal degree in co-relation 3684. Up to 74 conditions per place. [2023-08-27 05:14:42,333 INFO L82 GeneralOperation]: Start removeDead. Operand has 1401 places, 1549 transitions, 4538 flow [2023-08-27 05:14:42,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1401 places, 1549 transitions, 4538 flow [2023-08-27 05:14:42,403 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:14:42,403 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1401 places, 1549 transitions, 4538 flow [2023-08-27 05:14:42,403 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1401 places, 1549 transitions, 4538 flow [2023-08-27 05:14:42,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1401 places, 1549 transitions, 4538 flow [2023-08-27 05:14:44,519 INFO L124 PetriNetUnfolderBase]: 401/3052 cut-off events. [2023-08-27 05:14:44,519 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-27 05:14:44,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3827 conditions, 3052 events. 401/3052 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11365 event pairs, 0 based on Foata normal form. 0/2361 useless extension candidates. Maximal degree in co-relation 3684. Up to 74 conditions per place. [2023-08-27 05:14:45,308 INFO L119 LiptonReduction]: Number of co-enabled transitions 2190240 [2023-08-27 05:15:01,564 INFO L134 LiptonReduction]: Checked pairs total: 5843847 [2023-08-27 05:15:01,565 INFO L136 LiptonReduction]: Total number of compositions: 1188 [2023-08-27 05:15:01,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:15:01,566 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:15:01,566 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:15:01,859 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:15:01,859 INFO L124 PetriNetUnfolderBase]: 320/1250 cut-off events. [2023-08-27 05:15:01,859 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-27 05:15:01,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:15:01,860 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 05:15:01,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:15:01,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:15:01,860 INFO L85 PathProgramCache]: Analyzing trace with hash -555698426, now seen corresponding path program 1 times [2023-08-27 05:15:01,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:15:01,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094844035] [2023-08-27 05:15:01,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:15:01,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:15:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:15:01,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:15:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:15:01,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:15:01,978 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:15:01,978 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:15:01,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-27 05:15:01,978 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:15:01,978 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:15:01,978 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:15:01,978 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2023-08-27 05:15:02,072 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:15:02,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1438 places, 1590 transitions, 4697 flow [2023-08-27 05:15:03,902 INFO L124 PetriNetUnfolderBase]: 412/3135 cut-off events. [2023-08-27 05:15:03,902 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-27 05:15:04,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3950 conditions, 3135 events. 412/3135 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11636 event pairs, 0 based on Foata normal form. 0/2425 useless extension candidates. Maximal degree in co-relation 3806. Up to 76 conditions per place. [2023-08-27 05:15:04,102 INFO L82 GeneralOperation]: Start removeDead. Operand has 1438 places, 1590 transitions, 4697 flow [2023-08-27 05:15:04,150 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1438 places, 1590 transitions, 4697 flow [2023-08-27 05:15:04,150 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:15:04,151 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1438 places, 1590 transitions, 4697 flow [2023-08-27 05:15:04,151 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1438 places, 1590 transitions, 4697 flow [2023-08-27 05:15:04,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1438 places, 1590 transitions, 4697 flow [2023-08-27 05:15:05,975 INFO L124 PetriNetUnfolderBase]: 412/3135 cut-off events. [2023-08-27 05:15:05,975 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-27 05:15:06,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3950 conditions, 3135 events. 412/3135 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11636 event pairs, 0 based on Foata normal form. 0/2425 useless extension candidates. Maximal degree in co-relation 3806. Up to 76 conditions per place. [2023-08-27 05:15:06,927 INFO L119 LiptonReduction]: Number of co-enabled transitions 2311760 [2023-08-27 05:15:23,245 INFO L134 LiptonReduction]: Checked pairs total: 6201161 [2023-08-27 05:15:23,246 INFO L136 LiptonReduction]: Total number of compositions: 1228 [2023-08-27 05:15:23,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:15:23,247 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:15:23,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:15:23,637 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:15:23,637 INFO L124 PetriNetUnfolderBase]: 329/1285 cut-off events. [2023-08-27 05:15:23,637 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-27 05:15:23,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:15:23,638 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 05:15:23,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:15:23,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:15:23,638 INFO L85 PathProgramCache]: Analyzing trace with hash 858176247, now seen corresponding path program 1 times [2023-08-27 05:15:23,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:15:23,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831963903] [2023-08-27 05:15:23,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:15:23,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:15:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:15:23,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:15:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:15:23,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:15:23,750 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:15:23,751 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:15:23,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-27 05:15:23,751 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:15:23,751 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:15:23,751 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:15:23,751 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2023-08-27 05:15:23,851 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:15:23,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1631 transitions, 4858 flow [2023-08-27 05:15:25,726 INFO L124 PetriNetUnfolderBase]: 423/3218 cut-off events. [2023-08-27 05:15:25,726 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-27 05:15:25,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4074 conditions, 3218 events. 423/3218 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12029 event pairs, 0 based on Foata normal form. 0/2489 useless extension candidates. Maximal degree in co-relation 3929. Up to 78 conditions per place. [2023-08-27 05:15:25,937 INFO L82 GeneralOperation]: Start removeDead. Operand has 1475 places, 1631 transitions, 4858 flow [2023-08-27 05:15:26,119 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1475 places, 1631 transitions, 4858 flow [2023-08-27 05:15:26,119 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:15:26,119 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1475 places, 1631 transitions, 4858 flow [2023-08-27 05:15:26,119 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1475 places, 1631 transitions, 4858 flow [2023-08-27 05:15:26,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1631 transitions, 4858 flow [2023-08-27 05:15:27,900 INFO L124 PetriNetUnfolderBase]: 423/3218 cut-off events. [2023-08-27 05:15:27,901 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-27 05:15:28,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4074 conditions, 3218 events. 423/3218 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12029 event pairs, 0 based on Foata normal form. 0/2489 useless extension candidates. Maximal degree in co-relation 3929. Up to 78 conditions per place. [2023-08-27 05:15:28,851 INFO L119 LiptonReduction]: Number of co-enabled transitions 2436560 [2023-08-27 05:15:45,869 INFO L134 LiptonReduction]: Checked pairs total: 6548687 [2023-08-27 05:15:45,869 INFO L136 LiptonReduction]: Total number of compositions: 1265 [2023-08-27 05:15:45,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:15:45,871 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:15:45,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:15:46,195 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:15:46,196 INFO L124 PetriNetUnfolderBase]: 338/1324 cut-off events. [2023-08-27 05:15:46,196 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-27 05:15:46,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:15:46,196 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 05:15:46,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:15:46,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:15:46,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1206224384, now seen corresponding path program 1 times [2023-08-27 05:15:46,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:15:46,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723218024] [2023-08-27 05:15:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:15:46,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:15:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:15:46,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:15:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:15:46,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:15:46,418 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:15:46,418 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:15:46,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-27 05:15:46,418 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:15:46,419 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:15:46,419 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:15:46,419 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2023-08-27 05:15:46,507 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:15:46,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1512 places, 1672 transitions, 5021 flow [2023-08-27 05:15:48,762 INFO L124 PetriNetUnfolderBase]: 434/3301 cut-off events. [2023-08-27 05:15:48,762 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-27 05:15:48,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4199 conditions, 3301 events. 434/3301 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12330 event pairs, 0 based on Foata normal form. 0/2553 useless extension candidates. Maximal degree in co-relation 4053. Up to 80 conditions per place. [2023-08-27 05:15:48,968 INFO L82 GeneralOperation]: Start removeDead. Operand has 1512 places, 1672 transitions, 5021 flow [2023-08-27 05:15:49,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1512 places, 1672 transitions, 5021 flow [2023-08-27 05:15:49,015 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:15:49,015 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1512 places, 1672 transitions, 5021 flow [2023-08-27 05:15:49,015 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1512 places, 1672 transitions, 5021 flow [2023-08-27 05:15:49,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1512 places, 1672 transitions, 5021 flow [2023-08-27 05:15:51,044 INFO L124 PetriNetUnfolderBase]: 434/3301 cut-off events. [2023-08-27 05:15:51,044 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-27 05:15:51,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4199 conditions, 3301 events. 434/3301 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12330 event pairs, 0 based on Foata normal form. 0/2553 useless extension candidates. Maximal degree in co-relation 4053. Up to 80 conditions per place. [2023-08-27 05:15:51,983 INFO L119 LiptonReduction]: Number of co-enabled transitions 2564640 [2023-08-27 05:16:09,764 INFO L134 LiptonReduction]: Checked pairs total: 7694984 [2023-08-27 05:16:09,764 INFO L136 LiptonReduction]: Total number of compositions: 1277 [2023-08-27 05:16:09,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:16:09,766 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:16:09,766 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:16:10,209 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:16:10,209 INFO L124 PetriNetUnfolderBase]: 347/1359 cut-off events. [2023-08-27 05:16:10,209 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-27 05:16:10,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:16:10,209 INFO L208 CegarLoopForPetriNet]: trace histogram [40, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:16:10,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:16:10,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:16:10,210 INFO L85 PathProgramCache]: Analyzing trace with hash 760667811, now seen corresponding path program 1 times [2023-08-27 05:16:10,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:16:10,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122185760] [2023-08-27 05:16:10,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:16:10,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:16:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:16:10,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:16:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:16:10,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:16:10,337 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:16:10,337 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:16:10,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-27 05:16:10,337 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:16:10,337 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:16:10,338 WARN L233 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:16:10,338 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2023-08-27 05:16:10,436 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:16:10,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1549 places, 1713 transitions, 5186 flow [2023-08-27 05:16:12,809 INFO L124 PetriNetUnfolderBase]: 445/3384 cut-off events. [2023-08-27 05:16:12,809 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-27 05:16:13,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4325 conditions, 3384 events. 445/3384 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12598 event pairs, 0 based on Foata normal form. 0/2617 useless extension candidates. Maximal degree in co-relation 4178. Up to 82 conditions per place. [2023-08-27 05:16:13,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 1549 places, 1713 transitions, 5186 flow [2023-08-27 05:16:13,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1549 places, 1713 transitions, 5186 flow [2023-08-27 05:16:13,238 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:16:13,239 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1549 places, 1713 transitions, 5186 flow [2023-08-27 05:16:13,239 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1549 places, 1713 transitions, 5186 flow [2023-08-27 05:16:13,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1549 places, 1713 transitions, 5186 flow [2023-08-27 05:16:15,871 INFO L124 PetriNetUnfolderBase]: 445/3384 cut-off events. [2023-08-27 05:16:15,871 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-27 05:16:16,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4325 conditions, 3384 events. 445/3384 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12598 event pairs, 0 based on Foata normal form. 0/2617 useless extension candidates. Maximal degree in co-relation 4178. Up to 82 conditions per place. [2023-08-27 05:16:16,903 INFO L119 LiptonReduction]: Number of co-enabled transitions 2696000 [2023-08-27 05:16:35,437 INFO L134 LiptonReduction]: Checked pairs total: 7215619 [2023-08-27 05:16:35,437 INFO L136 LiptonReduction]: Total number of compositions: 1332 [2023-08-27 05:16:35,439 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:16:35,439 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:16:35,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:16:35,815 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:16:35,816 INFO L124 PetriNetUnfolderBase]: 356/1394 cut-off events. [2023-08-27 05:16:35,816 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-27 05:16:35,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:16:35,816 INFO L208 CegarLoopForPetriNet]: trace histogram [41, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:16:35,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:16:35,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:16:35,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1516933546, now seen corresponding path program 1 times [2023-08-27 05:16:35,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:16:35,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811086116] [2023-08-27 05:16:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:16:35,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:16:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:16:35,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:16:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:16:35,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:16:35,948 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:16:35,948 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:16:35,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-27 05:16:35,948 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:16:35,949 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:16:35,949 WARN L233 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:16:35,949 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2023-08-27 05:16:36,133 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:16:36,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1586 places, 1754 transitions, 5353 flow [2023-08-27 05:16:38,472 INFO L124 PetriNetUnfolderBase]: 456/3467 cut-off events. [2023-08-27 05:16:38,472 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-27 05:16:38,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4452 conditions, 3467 events. 456/3467 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13050 event pairs, 0 based on Foata normal form. 0/2681 useless extension candidates. Maximal degree in co-relation 4304. Up to 84 conditions per place. [2023-08-27 05:16:38,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 1586 places, 1754 transitions, 5353 flow [2023-08-27 05:16:38,752 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1586 places, 1754 transitions, 5353 flow [2023-08-27 05:16:38,753 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:16:38,753 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1586 places, 1754 transitions, 5353 flow [2023-08-27 05:16:38,753 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1586 places, 1754 transitions, 5353 flow [2023-08-27 05:16:38,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1586 places, 1754 transitions, 5353 flow [2023-08-27 05:16:40,927 INFO L124 PetriNetUnfolderBase]: 456/3467 cut-off events. [2023-08-27 05:16:40,927 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-27 05:16:41,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4452 conditions, 3467 events. 456/3467 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13050 event pairs, 0 based on Foata normal form. 0/2681 useless extension candidates. Maximal degree in co-relation 4304. Up to 84 conditions per place. [2023-08-27 05:16:42,115 INFO L119 LiptonReduction]: Number of co-enabled transitions 2830640 [2023-08-27 05:17:00,591 INFO L134 LiptonReduction]: Checked pairs total: 7614211 [2023-08-27 05:17:00,591 INFO L136 LiptonReduction]: Total number of compositions: 1361 [2023-08-27 05:17:00,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:17:00,593 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:17:00,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:17:01,084 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:17:01,084 INFO L124 PetriNetUnfolderBase]: 322/1381 cut-off events. [2023-08-27 05:17:01,084 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-27 05:17:01,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:17:01,084 INFO L208 CegarLoopForPetriNet]: trace histogram [42, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:17:01,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:17:01,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:17:01,085 INFO L85 PathProgramCache]: Analyzing trace with hash -70108737, now seen corresponding path program 1 times [2023-08-27 05:17:01,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:17:01,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541495499] [2023-08-27 05:17:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:17:01,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:17:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:17:01,141 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:17:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:17:01,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:17:01,222 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:17:01,223 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:17:01,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-27 05:17:01,223 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:17:01,223 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:17:01,223 WARN L233 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:17:01,223 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2023-08-27 05:17:01,332 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:17:01,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1623 places, 1795 transitions, 5522 flow [2023-08-27 05:17:03,790 INFO L124 PetriNetUnfolderBase]: 467/3550 cut-off events. [2023-08-27 05:17:03,790 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-27 05:17:04,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4580 conditions, 3550 events. 467/3550 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13272 event pairs, 0 based on Foata normal form. 0/2745 useless extension candidates. Maximal degree in co-relation 4431. Up to 86 conditions per place. [2023-08-27 05:17:04,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 1623 places, 1795 transitions, 5522 flow [2023-08-27 05:17:04,119 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1623 places, 1795 transitions, 5522 flow [2023-08-27 05:17:04,119 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:17:04,119 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1623 places, 1795 transitions, 5522 flow [2023-08-27 05:17:04,119 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1623 places, 1795 transitions, 5522 flow [2023-08-27 05:17:04,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1623 places, 1795 transitions, 5522 flow [2023-08-27 05:17:06,604 INFO L124 PetriNetUnfolderBase]: 467/3550 cut-off events. [2023-08-27 05:17:06,604 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-27 05:17:06,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4580 conditions, 3550 events. 467/3550 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13272 event pairs, 0 based on Foata normal form. 0/2745 useless extension candidates. Maximal degree in co-relation 4431. Up to 86 conditions per place. [2023-08-27 05:17:07,763 INFO L119 LiptonReduction]: Number of co-enabled transitions 2968560 [2023-08-27 05:17:27,467 INFO L134 LiptonReduction]: Checked pairs total: 7928718 [2023-08-27 05:17:27,468 INFO L136 LiptonReduction]: Total number of compositions: 1396 [2023-08-27 05:17:27,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:17:27,469 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:17:27,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:17:27,867 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:17:27,867 INFO L124 PetriNetUnfolderBase]: 332/1422 cut-off events. [2023-08-27 05:17:27,867 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-27 05:17:27,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:17:27,867 INFO L208 CegarLoopForPetriNet]: trace histogram [43, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:17:27,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:17:27,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:17:27,868 INFO L85 PathProgramCache]: Analyzing trace with hash 709828217, now seen corresponding path program 1 times [2023-08-27 05:17:27,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:17:27,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647473894] [2023-08-27 05:17:27,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:17:27,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:17:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:17:27,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:17:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:17:28,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:17:28,021 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:17:28,021 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:17:28,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-27 05:17:28,022 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:17:28,022 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:17:28,022 WARN L233 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:17:28,022 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2023-08-27 05:17:28,191 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:17:28,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1660 places, 1836 transitions, 5693 flow [2023-08-27 05:17:30,748 INFO L124 PetriNetUnfolderBase]: 478/3633 cut-off events. [2023-08-27 05:17:30,748 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-27 05:17:31,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4709 conditions, 3633 events. 478/3633 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13588 event pairs, 0 based on Foata normal form. 0/2809 useless extension candidates. Maximal degree in co-relation 4559. Up to 88 conditions per place. [2023-08-27 05:17:31,017 INFO L82 GeneralOperation]: Start removeDead. Operand has 1660 places, 1836 transitions, 5693 flow [2023-08-27 05:17:31,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1660 places, 1836 transitions, 5693 flow [2023-08-27 05:17:31,079 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:17:31,079 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1660 places, 1836 transitions, 5693 flow [2023-08-27 05:17:31,079 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1660 places, 1836 transitions, 5693 flow [2023-08-27 05:17:31,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1660 places, 1836 transitions, 5693 flow [2023-08-27 05:17:33,624 INFO L124 PetriNetUnfolderBase]: 478/3633 cut-off events. [2023-08-27 05:17:33,624 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-27 05:17:33,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4709 conditions, 3633 events. 478/3633 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13588 event pairs, 0 based on Foata normal form. 0/2809 useless extension candidates. Maximal degree in co-relation 4559. Up to 88 conditions per place. [2023-08-27 05:17:34,822 INFO L119 LiptonReduction]: Number of co-enabled transitions 3109760 [2023-08-27 05:17:55,122 INFO L134 LiptonReduction]: Checked pairs total: 9304268 [2023-08-27 05:17:55,122 INFO L136 LiptonReduction]: Total number of compositions: 1420 [2023-08-27 05:17:55,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:17:55,123 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:17:55,123 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:17:55,542 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:17:55,543 INFO L124 PetriNetUnfolderBase]: 383/1496 cut-off events. [2023-08-27 05:17:55,543 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-27 05:17:55,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:17:55,543 INFO L208 CegarLoopForPetriNet]: trace histogram [44, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:17:55,543 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:17:55,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:17:55,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1839891474, now seen corresponding path program 1 times [2023-08-27 05:17:55,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:17:55,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65548971] [2023-08-27 05:17:55,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:17:55,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:17:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:17:55,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:17:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:17:55,697 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:17:55,698 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:17:55,698 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:17:55,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-27 05:17:55,698 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:17:55,698 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:17:55,699 WARN L233 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:17:55,699 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2023-08-27 05:17:55,811 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:17:55,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1697 places, 1877 transitions, 5866 flow [2023-08-27 05:17:58,647 INFO L124 PetriNetUnfolderBase]: 489/3716 cut-off events. [2023-08-27 05:17:58,647 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-27 05:17:58,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4839 conditions, 3716 events. 489/3716 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13946 event pairs, 0 based on Foata normal form. 0/2873 useless extension candidates. Maximal degree in co-relation 4688. Up to 90 conditions per place. [2023-08-27 05:17:58,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 1697 places, 1877 transitions, 5866 flow [2023-08-27 05:17:58,973 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1697 places, 1877 transitions, 5866 flow [2023-08-27 05:17:58,973 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:17:58,974 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1697 places, 1877 transitions, 5866 flow [2023-08-27 05:17:58,974 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1697 places, 1877 transitions, 5866 flow [2023-08-27 05:17:58,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1697 places, 1877 transitions, 5866 flow [2023-08-27 05:18:01,883 INFO L124 PetriNetUnfolderBase]: 489/3716 cut-off events. [2023-08-27 05:18:01,883 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-27 05:18:02,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4839 conditions, 3716 events. 489/3716 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13946 event pairs, 0 based on Foata normal form. 0/2873 useless extension candidates. Maximal degree in co-relation 4688. Up to 90 conditions per place. [2023-08-27 05:18:03,613 INFO L119 LiptonReduction]: Number of co-enabled transitions 3254240 [2023-08-27 05:18:23,964 INFO L134 LiptonReduction]: Checked pairs total: 8706730 [2023-08-27 05:18:23,964 INFO L136 LiptonReduction]: Total number of compositions: 1441 [2023-08-27 05:18:23,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:18:23,965 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:18:23,965 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:18:24,485 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:18:24,485 INFO L124 PetriNetUnfolderBase]: 348/1490 cut-off events. [2023-08-27 05:18:24,485 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-27 05:18:24,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:18:24,485 INFO L208 CegarLoopForPetriNet]: trace histogram [45, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:18:24,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:18:24,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:18:24,485 INFO L85 PathProgramCache]: Analyzing trace with hash 707625730, now seen corresponding path program 1 times [2023-08-27 05:18:24,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:18:24,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892205104] [2023-08-27 05:18:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:18:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:18:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:18:24,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:18:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:18:24,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:18:24,624 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:18:24,624 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:18:24,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-27 05:18:24,625 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:18:24,625 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:18:24,625 WARN L233 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:18:24,625 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2023-08-27 05:18:24,749 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:18:24,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1734 places, 1918 transitions, 6041 flow [2023-08-27 05:18:27,496 INFO L124 PetriNetUnfolderBase]: 500/3799 cut-off events. [2023-08-27 05:18:27,496 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-27 05:18:27,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4970 conditions, 3799 events. 500/3799 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 14275 event pairs, 0 based on Foata normal form. 0/2937 useless extension candidates. Maximal degree in co-relation 4818. Up to 92 conditions per place. [2023-08-27 05:18:27,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 1734 places, 1918 transitions, 6041 flow [2023-08-27 05:18:27,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1734 places, 1918 transitions, 6041 flow [2023-08-27 05:18:27,838 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:18:27,838 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1734 places, 1918 transitions, 6041 flow [2023-08-27 05:18:27,838 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1734 places, 1918 transitions, 6041 flow [2023-08-27 05:18:27,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1734 places, 1918 transitions, 6041 flow [2023-08-27 05:18:30,484 INFO L124 PetriNetUnfolderBase]: 500/3799 cut-off events. [2023-08-27 05:18:30,484 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-27 05:18:30,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4970 conditions, 3799 events. 500/3799 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 14275 event pairs, 0 based on Foata normal form. 0/2937 useless extension candidates. Maximal degree in co-relation 4818. Up to 92 conditions per place. [2023-08-27 05:18:31,835 INFO L119 LiptonReduction]: Number of co-enabled transitions 3402000 [2023-08-27 05:18:53,044 INFO L134 LiptonReduction]: Checked pairs total: 10115026 [2023-08-27 05:18:53,045 INFO L136 LiptonReduction]: Total number of compositions: 1485 [2023-08-27 05:18:53,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:18:53,046 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:18:53,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:18:53,622 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:18:53,623 INFO L124 PetriNetUnfolderBase]: 356/1524 cut-off events. [2023-08-27 05:18:53,623 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-27 05:18:53,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:18:53,623 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:18:53,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:18:53,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:18:53,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1726334683, now seen corresponding path program 1 times [2023-08-27 05:18:53,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:18:53,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325081079] [2023-08-27 05:18:53,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:18:53,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:18:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:18:53,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:18:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:18:53,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:18:53,800 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:18:53,800 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:18:53,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-27 05:18:53,800 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:18:53,800 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:18:53,800 WARN L233 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:18:53,801 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2023-08-27 05:18:53,919 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:18:53,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1771 places, 1959 transitions, 6218 flow [2023-08-27 05:18:56,704 INFO L124 PetriNetUnfolderBase]: 511/3882 cut-off events. [2023-08-27 05:18:56,704 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-27 05:18:57,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5102 conditions, 3882 events. 511/3882 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 14572 event pairs, 0 based on Foata normal form. 0/3001 useless extension candidates. Maximal degree in co-relation 4949. Up to 94 conditions per place. [2023-08-27 05:18:57,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 1771 places, 1959 transitions, 6218 flow [2023-08-27 05:18:57,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1771 places, 1959 transitions, 6218 flow [2023-08-27 05:18:57,108 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:18:57,108 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1771 places, 1959 transitions, 6218 flow [2023-08-27 05:18:57,108 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1771 places, 1959 transitions, 6218 flow [2023-08-27 05:18:57,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1771 places, 1959 transitions, 6218 flow [2023-08-27 05:19:00,093 INFO L124 PetriNetUnfolderBase]: 511/3882 cut-off events. [2023-08-27 05:19:00,093 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-27 05:19:00,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5102 conditions, 3882 events. 511/3882 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 14572 event pairs, 0 based on Foata normal form. 0/3001 useless extension candidates. Maximal degree in co-relation 4949. Up to 94 conditions per place. [2023-08-27 05:19:01,451 INFO L119 LiptonReduction]: Number of co-enabled transitions 3553040 [2023-08-27 05:19:23,129 INFO L134 LiptonReduction]: Checked pairs total: 9560687 [2023-08-27 05:19:23,129 INFO L136 LiptonReduction]: Total number of compositions: 1511 [2023-08-27 05:19:23,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:19:23,130 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:19:23,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:19:23,615 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:19:23,616 INFO L124 PetriNetUnfolderBase]: 410/1604 cut-off events. [2023-08-27 05:19:23,616 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-27 05:19:23,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:19:23,616 INFO L208 CegarLoopForPetriNet]: trace histogram [47, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 05:19:23,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:19:23,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:19:23,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1413909112, now seen corresponding path program 1 times [2023-08-27 05:19:23,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:19:23,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599087811] [2023-08-27 05:19:23,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:19:23,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:19:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:19:23,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:19:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:19:23,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:19:23,843 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:19:23,844 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:19:23,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-27 05:19:23,844 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:19:23,844 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:19:23,844 WARN L233 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:19:23,844 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2023-08-27 05:19:23,959 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:19:23,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1808 places, 2000 transitions, 6397 flow [2023-08-27 05:19:26,979 INFO L124 PetriNetUnfolderBase]: 522/3965 cut-off events. [2023-08-27 05:19:26,979 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-27 05:19:27,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5235 conditions, 3965 events. 522/3965 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 14949 event pairs, 0 based on Foata normal form. 0/3065 useless extension candidates. Maximal degree in co-relation 5081. Up to 96 conditions per place. [2023-08-27 05:19:27,322 INFO L82 GeneralOperation]: Start removeDead. Operand has 1808 places, 2000 transitions, 6397 flow [2023-08-27 05:19:27,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1808 places, 2000 transitions, 6397 flow [2023-08-27 05:19:27,403 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:19:27,403 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1808 places, 2000 transitions, 6397 flow [2023-08-27 05:19:27,403 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1808 places, 2000 transitions, 6397 flow [2023-08-27 05:19:27,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1808 places, 2000 transitions, 6397 flow [2023-08-27 05:19:30,577 INFO L124 PetriNetUnfolderBase]: 522/3965 cut-off events. [2023-08-27 05:19:30,577 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-27 05:19:30,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5235 conditions, 3965 events. 522/3965 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 14949 event pairs, 0 based on Foata normal form. 0/3065 useless extension candidates. Maximal degree in co-relation 5081. Up to 96 conditions per place. [2023-08-27 05:19:32,008 INFO L119 LiptonReduction]: Number of co-enabled transitions 3707360 [2023-08-27 05:19:54,711 INFO L134 LiptonReduction]: Checked pairs total: 11165335 [2023-08-27 05:19:54,711 INFO L136 LiptonReduction]: Total number of compositions: 1547 [2023-08-27 05:19:54,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 05:19:54,712 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;@6b680ea1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 05:19:54,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 05:19:55,222 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 05:19:55,223 INFO L124 PetriNetUnfolderBase]: 372/1592 cut-off events. [2023-08-27 05:19:55,223 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-27 05:19:55,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 05:19:55,223 INFO L208 CegarLoopForPetriNet]: trace histogram [48, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:19:55,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 05:19:55,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 05:19:55,223 INFO L85 PathProgramCache]: Analyzing trace with hash -901836666, now seen corresponding path program 1 times [2023-08-27 05:19:55,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 05:19:55,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190248748] [2023-08-27 05:19:55,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 05:19:55,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 05:19:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:19:55,294 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 05:19:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 05:19:55,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 05:19:55,491 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 05:19:55,491 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 05:19:55,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-27 05:19:55,491 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 05:19:55,492 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 05:19:55,492 WARN L233 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 05:19:55,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2023-08-27 05:19:55,599 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 05:19:55,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1845 places, 2041 transitions, 6578 flow [2023-08-27 05:19:58,715 INFO L124 PetriNetUnfolderBase]: 533/4048 cut-off events. [2023-08-27 05:19:58,716 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2023-08-27 05:19:59,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5369 conditions, 4048 events. 533/4048 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 15153 event pairs, 0 based on Foata normal form. 0/3129 useless extension candidates. Maximal degree in co-relation 5214. Up to 98 conditions per place. [2023-08-27 05:19:59,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 1845 places, 2041 transitions, 6578 flow [2023-08-27 05:19:59,138 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1845 places, 2041 transitions, 6578 flow [2023-08-27 05:19:59,138 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 05:19:59,138 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1845 places, 2041 transitions, 6578 flow [2023-08-27 05:19:59,138 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1845 places, 2041 transitions, 6578 flow [2023-08-27 05:19:59,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1845 places, 2041 transitions, 6578 flow [2023-08-27 05:20:02,470 INFO L124 PetriNetUnfolderBase]: 533/4048 cut-off events. [2023-08-27 05:20:02,470 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2023-08-27 05:20:02,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5369 conditions, 4048 events. 533/4048 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 15153 event pairs, 0 based on Foata normal form. 0/3129 useless extension candidates. Maximal degree in co-relation 5214. Up to 98 conditions per place. [2023-08-27 05:20:03,961 INFO L119 LiptonReduction]: Number of co-enabled transitions 3864960 Received shutdown request... [2023-08-27 05:20:18,665 WARN L266 SmtUtils]: Removed 2 from assertion stack [2023-08-27 05:20:18,666 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 05:20:18,667 INFO L158 Benchmark]: Toolchain (without parser) took 694191.70ms. Allocated memory was 381.7MB in the beginning and 13.6GB in the end (delta: 13.2GB). Free memory was 357.0MB in the beginning and 7.0GB in the end (delta: -6.6GB). Peak memory consumption was 7.3GB. Max. memory is 16.0GB. [2023-08-27 05:20:18,667 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 381.7MB. Free memory is still 358.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 05:20:18,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.69ms. Allocated memory is still 381.7MB. Free memory was 356.7MB in the beginning and 337.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 05:20:18,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.59ms. Allocated memory is still 381.7MB. Free memory was 337.1MB in the beginning and 335.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 05:20:18,667 INFO L158 Benchmark]: Boogie Preprocessor took 41.47ms. Allocated memory is still 381.7MB. Free memory was 335.0MB in the beginning and 333.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 05:20:18,667 INFO L158 Benchmark]: RCFGBuilder took 464.23ms. Allocated memory is still 381.7MB. Free memory was 333.3MB in the beginning and 318.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 05:20:18,668 INFO L158 Benchmark]: TraceAbstraction took 693144.00ms. Allocated memory was 381.7MB in the beginning and 13.6GB in the end (delta: 13.2GB). Free memory was 317.7MB in the beginning and 7.0GB in the end (delta: -6.6GB). Peak memory consumption was 7.2GB. Max. memory is 16.0GB. [2023-08-27 05:20:18,668 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 381.7MB. Free memory is still 358.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 479.69ms. Allocated memory is still 381.7MB. Free memory was 356.7MB in the beginning and 337.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.59ms. Allocated memory is still 381.7MB. Free memory was 337.1MB in the beginning and 335.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 41.47ms. Allocated memory is still 381.7MB. Free memory was 335.0MB in the beginning and 333.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 464.23ms. Allocated memory is still 381.7MB. Free memory was 333.3MB in the beginning and 318.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 693144.00ms. Allocated memory was 381.7MB in the beginning and 13.6GB in the end (delta: 13.2GB). Free memory was 317.7MB in the beginning and 7.0GB in the end (delta: -6.6GB). Peak memory consumption was 7.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 106 PlacesBefore, 30 PlacesAfterwards, 114 TransitionsBefore, 35 TransitionsAfterwards, 3440 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 108 TotalNumberOfCompositions, 6391 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3885, independent: 3693, independent conditional: 0, independent unconditional: 3693, dependent: 192, dependent conditional: 0, dependent unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2014, independent: 1966, independent conditional: 0, independent unconditional: 1966, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3885, independent: 1727, independent conditional: 0, independent unconditional: 1727, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 2014, unknown conditional: 0, unknown unconditional: 2014] , Statistics on independence cache: Total cache size (in pairs): 145, Positive cache size: 127, Positive conditional cache size: 0, Positive unconditional cache size: 127, 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: 2.9s, 143 PlacesBefore, 49 PlacesAfterwards, 155 TransitionsBefore, 58 TransitionsAfterwards, 10160 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 95 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 3 ChoiceCompositions, 144 TotalNumberOfCompositions, 21637 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10471, independent: 10151, independent conditional: 0, independent unconditional: 10151, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5521, independent: 5452, independent conditional: 0, independent unconditional: 5452, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10471, independent: 4699, independent conditional: 0, independent unconditional: 4699, dependent: 251, dependent conditional: 0, dependent unconditional: 251, unknown: 5521, unknown conditional: 0, unknown unconditional: 5521] , Statistics on independence cache: Total cache size (in pairs): 303, Positive cache size: 271, Positive conditional cache size: 0, Positive unconditional cache size: 271, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 180 PlacesBefore, 67 PlacesAfterwards, 196 TransitionsBefore, 80 TransitionsAfterwards, 20160 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 117 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 3 ChoiceCompositions, 170 TotalNumberOfCompositions, 46552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18884, independent: 18413, independent conditional: 0, independent unconditional: 18413, dependent: 471, dependent conditional: 0, dependent unconditional: 471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10499, independent: 10393, independent conditional: 0, independent unconditional: 10393, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 18884, independent: 8020, independent conditional: 0, independent unconditional: 8020, dependent: 365, dependent conditional: 0, dependent unconditional: 365, unknown: 10499, unknown conditional: 0, unknown unconditional: 10499] , Statistics on independence cache: Total cache size (in pairs): 486, Positive cache size: 441, Positive conditional cache size: 0, Positive unconditional cache size: 441, 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: 3.6s, 217 PlacesBefore, 85 PlacesAfterwards, 237 TransitionsBefore, 102 TransitionsAfterwards, 33440 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 144 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 3 ChoiceCompositions, 200 TotalNumberOfCompositions, 85521 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28694, independent: 27993, independent conditional: 0, independent unconditional: 27993, dependent: 701, dependent conditional: 0, dependent unconditional: 701, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 16947, independent: 16815, independent conditional: 0, independent unconditional: 16815, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 28694, independent: 11178, independent conditional: 0, independent unconditional: 11178, dependent: 569, dependent conditional: 0, dependent unconditional: 569, unknown: 16947, unknown conditional: 0, unknown unconditional: 16947] , Statistics on independence cache: Total cache size (in pairs): 525, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 254 PlacesBefore, 103 PlacesAfterwards, 278 TransitionsBefore, 124 TransitionsAfterwards, 50000 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 173 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 28 ConcurrentYvCompositions, 3 ChoiceCompositions, 233 TotalNumberOfCompositions, 118652 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43076, independent: 42340, independent conditional: 0, independent unconditional: 42340, dependent: 736, dependent conditional: 0, dependent unconditional: 736, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 25031, independent: 24865, independent conditional: 0, independent unconditional: 24865, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 43076, independent: 17475, independent conditional: 0, independent unconditional: 17475, dependent: 570, dependent conditional: 0, dependent unconditional: 570, unknown: 25031, unknown conditional: 0, unknown unconditional: 25031] , Statistics on independence cache: Total cache size (in pairs): 937, Positive cache size: 863, Positive conditional cache size: 0, Positive unconditional cache size: 863, Negative cache size: 74, Negative conditional cache size: 0, Negative unconditional cache size: 74, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 291 PlacesBefore, 121 PlacesAfterwards, 319 TransitionsBefore, 146 TransitionsAfterwards, 69840 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 197 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 32 ConcurrentYvCompositions, 3 ChoiceCompositions, 261 TotalNumberOfCompositions, 165785 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 56338, independent: 55476, independent conditional: 0, independent unconditional: 55476, dependent: 862, dependent conditional: 0, dependent unconditional: 862, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 34295, independent: 34133, independent conditional: 0, independent unconditional: 34133, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 56338, independent: 21343, independent conditional: 0, independent unconditional: 21343, dependent: 700, dependent conditional: 0, dependent unconditional: 700, unknown: 34295, unknown conditional: 0, unknown unconditional: 34295] , Statistics on independence cache: Total cache size (in pairs): 922, Positive cache size: 832, Positive conditional cache size: 0, Positive unconditional cache size: 832, Negative cache size: 90, Negative conditional cache size: 0, Negative unconditional cache size: 90, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 328 PlacesBefore, 139 PlacesAfterwards, 360 TransitionsBefore, 168 TransitionsAfterwards, 92960 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 229 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 37 ConcurrentYvCompositions, 3 ChoiceCompositions, 298 TotalNumberOfCompositions, 227046 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 86361, independent: 85365, independent conditional: 0, independent unconditional: 85365, dependent: 996, dependent conditional: 0, dependent unconditional: 996, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 46458, independent: 46265, independent conditional: 0, independent unconditional: 46265, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 86361, independent: 39100, independent conditional: 0, independent unconditional: 39100, dependent: 803, dependent conditional: 0, dependent unconditional: 803, unknown: 46458, unknown conditional: 0, unknown unconditional: 46458] , Statistics on independence cache: Total cache size (in pairs): 1723, Positive cache size: 1621, Positive conditional cache size: 0, Positive unconditional cache size: 1621, Negative cache size: 102, Negative conditional cache size: 0, Negative unconditional cache size: 102, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 365 PlacesBefore, 157 PlacesAfterwards, 401 TransitionsBefore, 190 TransitionsAfterwards, 119360 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 249 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 41 ConcurrentYvCompositions, 3 ChoiceCompositions, 322 TotalNumberOfCompositions, 334805 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 100498, independent: 99116, independent conditional: 0, independent unconditional: 99116, dependent: 1382, dependent conditional: 0, dependent unconditional: 1382, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 57957, independent: 57684, independent conditional: 0, independent unconditional: 57684, dependent: 273, dependent conditional: 0, dependent unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 100498, independent: 41432, independent conditional: 0, independent unconditional: 41432, dependent: 1109, dependent conditional: 0, dependent unconditional: 1109, unknown: 57957, unknown conditional: 0, unknown unconditional: 57957] , Statistics on independence cache: Total cache size (in pairs): 1718, Positive cache size: 1602, Positive conditional cache size: 0, Positive unconditional cache size: 1602, Negative cache size: 116, Negative conditional cache size: 0, Negative unconditional cache size: 116, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 402 PlacesBefore, 175 PlacesAfterwards, 442 TransitionsBefore, 212 TransitionsAfterwards, 149040 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 281 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 45 ConcurrentYvCompositions, 3 ChoiceCompositions, 358 TotalNumberOfCompositions, 369265 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 135699, independent: 134419, independent conditional: 0, independent unconditional: 134419, dependent: 1280, dependent conditional: 0, dependent unconditional: 1280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 73646, independent: 73396, independent conditional: 0, independent unconditional: 73396, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 135699, independent: 61023, independent conditional: 0, independent unconditional: 61023, dependent: 1030, dependent conditional: 0, dependent unconditional: 1030, unknown: 73646, unknown conditional: 0, unknown unconditional: 73646] , Statistics on independence cache: Total cache size (in pairs): 4020, Positive cache size: 3873, Positive conditional cache size: 0, Positive unconditional cache size: 3873, Negative cache size: 147, Negative conditional cache size: 0, Negative unconditional cache size: 147, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 439 PlacesBefore, 193 PlacesAfterwards, 483 TransitionsBefore, 235 TransitionsAfterwards, 182000 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 301 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 49 ConcurrentYvCompositions, 2 ChoiceCompositions, 381 TotalNumberOfCompositions, 470733 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 168309, independent: 166851, independent conditional: 0, independent unconditional: 166851, dependent: 1458, dependent conditional: 0, dependent unconditional: 1458, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 91058, independent: 90718, independent conditional: 0, independent unconditional: 90718, dependent: 340, dependent conditional: 0, dependent unconditional: 340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 168309, independent: 76133, independent conditional: 0, independent unconditional: 76133, dependent: 1118, dependent conditional: 0, dependent unconditional: 1118, unknown: 91058, unknown conditional: 0, unknown unconditional: 91058] , Statistics on independence cache: Total cache size (in pairs): 4667, Positive cache size: 4525, Positive conditional cache size: 0, Positive unconditional cache size: 4525, Negative cache size: 142, Negative conditional cache size: 0, Negative unconditional cache size: 142, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6s, 476 PlacesBefore, 211 PlacesAfterwards, 524 TransitionsBefore, 257 TransitionsAfterwards, 218240 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 331 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 54 ConcurrentYvCompositions, 2 ChoiceCompositions, 416 TotalNumberOfCompositions, 564096 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 209949, independent: 208362, independent conditional: 0, independent unconditional: 208362, dependent: 1587, dependent conditional: 0, dependent unconditional: 1587, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 108134, independent: 107829, independent conditional: 0, independent unconditional: 107829, dependent: 305, dependent conditional: 0, dependent unconditional: 305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 209949, independent: 100533, independent conditional: 0, independent unconditional: 100533, dependent: 1282, dependent conditional: 0, dependent unconditional: 1282, unknown: 108134, unknown conditional: 0, unknown unconditional: 108134] , Statistics on independence cache: Total cache size (in pairs): 6093, Positive cache size: 5937, Positive conditional cache size: 0, Positive unconditional cache size: 5937, Negative cache size: 156, Negative conditional cache size: 0, Negative unconditional cache size: 156, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0s, 513 PlacesBefore, 229 PlacesAfterwards, 565 TransitionsBefore, 278 TransitionsAfterwards, 257760 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 356 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 57 ConcurrentYvCompositions, 3 ChoiceCompositions, 445 TotalNumberOfCompositions, 669000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 242628, independent: 240888, independent conditional: 0, independent unconditional: 240888, dependent: 1740, dependent conditional: 0, dependent unconditional: 1740, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 127366, independent: 127033, independent conditional: 0, independent unconditional: 127033, dependent: 333, dependent conditional: 0, dependent unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 242628, independent: 113855, independent conditional: 0, independent unconditional: 113855, dependent: 1407, dependent conditional: 0, dependent unconditional: 1407, unknown: 127366, unknown conditional: 0, unknown unconditional: 127366] , Statistics on independence cache: Total cache size (in pairs): 7157, Positive cache size: 6985, Positive conditional cache size: 0, Positive unconditional cache size: 6985, Negative cache size: 172, Negative conditional cache size: 0, Negative unconditional cache size: 172, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 550 PlacesBefore, 247 PlacesAfterwards, 606 TransitionsBefore, 301 TransitionsAfterwards, 300560 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 397 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 61 ConcurrentYvCompositions, 2 ChoiceCompositions, 489 TotalNumberOfCompositions, 778791 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 277150, independent: 275309, independent conditional: 0, independent unconditional: 275309, dependent: 1841, dependent conditional: 0, dependent unconditional: 1841, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 148895, independent: 148542, independent conditional: 0, independent unconditional: 148542, dependent: 353, dependent conditional: 0, dependent unconditional: 353, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 277150, independent: 126767, independent conditional: 0, independent unconditional: 126767, dependent: 1488, dependent conditional: 0, dependent unconditional: 1488, unknown: 148895, unknown conditional: 0, unknown unconditional: 148895] , Statistics on independence cache: Total cache size (in pairs): 7551, Positive cache size: 7367, Positive conditional cache size: 0, Positive unconditional cache size: 7367, 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: 6.7s, 587 PlacesBefore, 265 PlacesAfterwards, 647 TransitionsBefore, 323 TransitionsAfterwards, 346640 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 423 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 65 ConcurrentYvCompositions, 2 ChoiceCompositions, 519 TotalNumberOfCompositions, 899283 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 276765, independent: 274792, independent conditional: 0, independent unconditional: 274792, dependent: 1973, dependent conditional: 0, dependent unconditional: 1973, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 166632, independent: 166263, independent conditional: 0, independent unconditional: 166263, dependent: 369, dependent conditional: 0, dependent unconditional: 369, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 276765, independent: 108529, independent conditional: 0, independent unconditional: 108529, dependent: 1604, dependent conditional: 0, dependent unconditional: 1604, unknown: 166632, unknown conditional: 0, unknown unconditional: 166632] , Statistics on independence cache: Total cache size (in pairs): 3267, Positive cache size: 3051, Positive conditional cache size: 0, Positive unconditional cache size: 3051, Negative cache size: 216, Negative conditional cache size: 0, Negative unconditional cache size: 216, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 624 PlacesBefore, 283 PlacesAfterwards, 688 TransitionsBefore, 345 TransitionsAfterwards, 396000 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 441 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 69 ConcurrentYvCompositions, 2 ChoiceCompositions, 541 TotalNumberOfCompositions, 1023011 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 330749, independent: 328642, independent conditional: 0, independent unconditional: 328642, dependent: 2107, dependent conditional: 0, dependent unconditional: 2107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 191641, independent: 191240, independent conditional: 0, independent unconditional: 191240, dependent: 401, dependent conditional: 0, dependent unconditional: 401, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 330749, independent: 137402, independent conditional: 0, independent unconditional: 137402, dependent: 1706, dependent conditional: 0, dependent unconditional: 1706, unknown: 191641, unknown conditional: 0, unknown unconditional: 191641] , Statistics on independence cache: Total cache size (in pairs): 5336, Positive cache size: 5124, Positive conditional cache size: 0, Positive unconditional cache size: 5124, Negative cache size: 212, Negative conditional cache size: 0, Negative unconditional cache size: 212, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8s, 661 PlacesBefore, 301 PlacesAfterwards, 729 TransitionsBefore, 367 TransitionsAfterwards, 448640 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 480 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 73 ConcurrentYvCompositions, 2 ChoiceCompositions, 584 TotalNumberOfCompositions, 1171372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 391503, independent: 389257, independent conditional: 0, independent unconditional: 389257, dependent: 2246, dependent conditional: 0, dependent unconditional: 2246, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 217408, independent: 216977, independent conditional: 0, independent unconditional: 216977, dependent: 431, dependent conditional: 0, dependent unconditional: 431, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 391503, independent: 172280, independent conditional: 0, independent unconditional: 172280, dependent: 1815, dependent conditional: 0, dependent unconditional: 1815, unknown: 217408, unknown conditional: 0, unknown unconditional: 217408] , Statistics on independence cache: Total cache size (in pairs): 6470, Positive cache size: 6244, Positive conditional cache size: 0, Positive unconditional cache size: 6244, Negative cache size: 226, Negative conditional cache size: 0, Negative unconditional cache size: 226, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0s, 698 PlacesBefore, 319 PlacesAfterwards, 770 TransitionsBefore, 389 TransitionsAfterwards, 504560 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 500 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 77 ConcurrentYvCompositions, 2 ChoiceCompositions, 608 TotalNumberOfCompositions, 1322304 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 436391, independent: 433986, independent conditional: 0, independent unconditional: 433986, dependent: 2405, dependent conditional: 0, dependent unconditional: 2405, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 247470, independent: 246970, independent conditional: 0, independent unconditional: 246970, dependent: 500, dependent conditional: 0, dependent unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 436391, independent: 187016, independent conditional: 0, independent unconditional: 187016, dependent: 1905, dependent conditional: 0, dependent unconditional: 1905, unknown: 247470, unknown conditional: 0, unknown unconditional: 247470] , Statistics on independence cache: Total cache size (in pairs): 13006, Positive cache size: 12691, Positive conditional cache size: 0, Positive unconditional cache size: 12691, Negative cache size: 315, Negative conditional cache size: 0, Negative unconditional cache size: 315, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5s, 735 PlacesBefore, 337 PlacesAfterwards, 811 TransitionsBefore, 411 TransitionsAfterwards, 563760 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 520 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 82 ConcurrentYvCompositions, 2 ChoiceCompositions, 633 TotalNumberOfCompositions, 1471781 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 468868, independent: 466326, independent conditional: 0, independent unconditional: 466326, dependent: 2542, dependent conditional: 0, dependent unconditional: 2542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 270637, independent: 270180, independent conditional: 0, independent unconditional: 270180, dependent: 457, dependent conditional: 0, dependent unconditional: 457, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 468868, independent: 196146, independent conditional: 0, independent unconditional: 196146, dependent: 2085, dependent conditional: 0, dependent unconditional: 2085, unknown: 270637, unknown conditional: 0, unknown unconditional: 270637] , Statistics on independence cache: Total cache size (in pairs): 7574, Positive cache size: 7320, Positive conditional cache size: 0, Positive unconditional cache size: 7320, Negative cache size: 254, Negative conditional cache size: 0, Negative unconditional cache size: 254, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7s, 772 PlacesBefore, 355 PlacesAfterwards, 852 TransitionsBefore, 433 TransitionsAfterwards, 626240 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 544 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 85 ConcurrentYvCompositions, 2 ChoiceCompositions, 660 TotalNumberOfCompositions, 1647591 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 549988, independent: 547290, independent conditional: 0, independent unconditional: 547290, dependent: 2698, dependent conditional: 0, dependent unconditional: 2698, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 304575, independent: 304053, independent conditional: 0, independent unconditional: 304053, dependent: 522, dependent conditional: 0, dependent unconditional: 522, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 549988, independent: 243237, independent conditional: 0, independent unconditional: 243237, dependent: 2176, dependent conditional: 0, dependent unconditional: 2176, unknown: 304575, unknown conditional: 0, unknown unconditional: 304575] , Statistics on independence cache: Total cache size (in pairs): 13389, Positive cache size: 13080, Positive conditional cache size: 0, Positive unconditional cache size: 13080, Negative cache size: 309, Negative conditional cache size: 0, Negative unconditional cache size: 309, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5s, 809 PlacesBefore, 373 PlacesAfterwards, 893 TransitionsBefore, 455 TransitionsAfterwards, 692000 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 579 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 89 ConcurrentYvCompositions, 2 ChoiceCompositions, 699 TotalNumberOfCompositions, 1807238 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 543285, independent: 540492, independent conditional: 0, independent unconditional: 540492, dependent: 2793, dependent conditional: 0, dependent unconditional: 2793, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 330702, independent: 330181, independent conditional: 0, independent unconditional: 330181, dependent: 521, dependent conditional: 0, dependent unconditional: 521, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 543285, independent: 210311, independent conditional: 0, independent unconditional: 210311, dependent: 2272, dependent conditional: 0, dependent unconditional: 2272, unknown: 330702, unknown conditional: 0, unknown unconditional: 330702] , Statistics on independence cache: Total cache size (in pairs): 6356, Positive cache size: 6074, Positive conditional cache size: 0, Positive unconditional cache size: 6074, Negative cache size: 282, Negative conditional cache size: 0, Negative unconditional cache size: 282, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.8s, 846 PlacesBefore, 391 PlacesAfterwards, 934 TransitionsBefore, 477 TransitionsAfterwards, 761040 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 610 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 93 ConcurrentYvCompositions, 2 ChoiceCompositions, 734 TotalNumberOfCompositions, 2013855 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 603753, independent: 600789, independent conditional: 0, independent unconditional: 600789, dependent: 2964, dependent conditional: 0, dependent unconditional: 2964, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 363586, independent: 362952, independent conditional: 0, independent unconditional: 362952, dependent: 634, dependent conditional: 0, dependent unconditional: 634, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 603753, independent: 237837, independent conditional: 0, independent unconditional: 237837, dependent: 2330, dependent conditional: 0, dependent unconditional: 2330, unknown: 363586, unknown conditional: 0, unknown unconditional: 363586] , Statistics on independence cache: Total cache size (in pairs): 7101, Positive cache size: 6781, Positive conditional cache size: 0, Positive unconditional cache size: 6781, Negative cache size: 320, Negative conditional cache size: 0, Negative unconditional cache size: 320, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.5s, 883 PlacesBefore, 409 PlacesAfterwards, 975 TransitionsBefore, 498 TransitionsAfterwards, 833360 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 631 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 97 ConcurrentYvCompositions, 3 ChoiceCompositions, 760 TotalNumberOfCompositions, 2477401 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 671833, independent: 668157, independent conditional: 0, independent unconditional: 668157, dependent: 3676, dependent conditional: 0, dependent unconditional: 3676, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 396244, independent: 395587, independent conditional: 0, independent unconditional: 395587, dependent: 657, dependent conditional: 0, dependent unconditional: 657, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 671833, independent: 272570, independent conditional: 0, independent unconditional: 272570, dependent: 3019, dependent conditional: 0, dependent unconditional: 3019, unknown: 396244, unknown conditional: 0, unknown unconditional: 396244] , Statistics on independence cache: Total cache size (in pairs): 7762, Positive cache size: 7431, Positive conditional cache size: 0, Positive unconditional cache size: 7431, Negative cache size: 331, Negative conditional cache size: 0, Negative unconditional cache size: 331, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.8s, 920 PlacesBefore, 427 PlacesAfterwards, 1016 TransitionsBefore, 521 TransitionsAfterwards, 908960 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 666 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 102 ConcurrentYvCompositions, 2 ChoiceCompositions, 799 TotalNumberOfCompositions, 2418606 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 805474, independent: 802221, independent conditional: 0, independent unconditional: 802221, dependent: 3253, dependent conditional: 0, dependent unconditional: 3253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 444308, independent: 443614, independent conditional: 0, independent unconditional: 443614, dependent: 694, dependent conditional: 0, dependent unconditional: 694, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 805474, independent: 358607, independent conditional: 0, independent unconditional: 358607, dependent: 2559, dependent conditional: 0, dependent unconditional: 2559, unknown: 444308, unknown conditional: 0, unknown unconditional: 444308] , Statistics on independence cache: Total cache size (in pairs): 19933, Positive cache size: 19609, Positive conditional cache size: 0, Positive unconditional cache size: 19609, Negative cache size: 324, Negative conditional cache size: 0, Negative unconditional cache size: 324, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1s, 957 PlacesBefore, 445 PlacesAfterwards, 1057 TransitionsBefore, 543 TransitionsAfterwards, 987840 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 680 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 105 ConcurrentYvCompositions, 2 ChoiceCompositions, 816 TotalNumberOfCompositions, 2635178 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 944883, independent: 941460, independent conditional: 0, independent unconditional: 941460, dependent: 3423, dependent conditional: 0, dependent unconditional: 3423, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 485598, independent: 484911, independent conditional: 0, independent unconditional: 484911, dependent: 687, dependent conditional: 0, dependent unconditional: 687, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 944883, independent: 456549, independent conditional: 0, independent unconditional: 456549, dependent: 2736, dependent conditional: 0, dependent unconditional: 2736, unknown: 485598, unknown conditional: 0, unknown unconditional: 485598] , Statistics on independence cache: Total cache size (in pairs): 29835, Positive cache size: 29497, Positive conditional cache size: 0, Positive unconditional cache size: 29497, Negative cache size: 338, Negative conditional cache size: 0, Negative unconditional cache size: 338, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.9s, 994 PlacesBefore, 463 PlacesAfterwards, 1098 TransitionsBefore, 564 TransitionsAfterwards, 1070000 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 717 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 109 ConcurrentYvCompositions, 3 ChoiceCompositions, 858 TotalNumberOfCompositions, 2834924 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 994437, independent: 990914, independent conditional: 0, independent unconditional: 990914, dependent: 3523, dependent conditional: 0, dependent unconditional: 3523, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 523860, independent: 523184, independent conditional: 0, independent unconditional: 523184, dependent: 676, dependent conditional: 0, dependent unconditional: 676, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 994437, independent: 467730, independent conditional: 0, independent unconditional: 467730, dependent: 2847, dependent conditional: 0, dependent unconditional: 2847, unknown: 523860, unknown conditional: 0, unknown unconditional: 523860] , Statistics on independence cache: Total cache size (in pairs): 26889, Positive cache size: 26535, Positive conditional cache size: 0, Positive unconditional cache size: 26535, Negative cache size: 354, Negative conditional cache size: 0, Negative unconditional cache size: 354, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.8s, 1031 PlacesBefore, 481 PlacesAfterwards, 1139 TransitionsBefore, 587 TransitionsAfterwards, 1155440 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 748 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 113 ConcurrentYvCompositions, 2 ChoiceCompositions, 892 TotalNumberOfCompositions, 3454040 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1128632, independent: 1124311, independent conditional: 0, independent unconditional: 1124311, dependent: 4321, dependent conditional: 0, dependent unconditional: 4321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 564170, independent: 563464, independent conditional: 0, independent unconditional: 563464, dependent: 706, dependent conditional: 0, dependent unconditional: 706, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1128632, independent: 560847, independent conditional: 0, independent unconditional: 560847, dependent: 3615, dependent conditional: 0, dependent unconditional: 3615, unknown: 564170, unknown conditional: 0, unknown unconditional: 564170] , Statistics on independence cache: Total cache size (in pairs): 28736, Positive cache size: 28370, Positive conditional cache size: 0, Positive unconditional cache size: 28370, Negative cache size: 366, Negative conditional cache size: 0, Negative unconditional cache size: 366, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.8s, 1068 PlacesBefore, 499 PlacesAfterwards, 1180 TransitionsBefore, 609 TransitionsAfterwards, 1244160 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 772 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 118 ConcurrentYvCompositions, 2 ChoiceCompositions, 921 TotalNumberOfCompositions, 3323619 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1127705, independent: 1123888, independent conditional: 0, independent unconditional: 1123888, dependent: 3817, dependent conditional: 0, dependent unconditional: 3817, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 605730, independent: 604974, independent conditional: 0, independent unconditional: 604974, dependent: 756, dependent conditional: 0, dependent unconditional: 756, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1127705, independent: 518914, independent conditional: 0, independent unconditional: 518914, dependent: 3061, dependent conditional: 0, dependent unconditional: 3061, unknown: 605730, unknown conditional: 0, unknown unconditional: 605730] , Statistics on independence cache: Total cache size (in pairs): 28185, Positive cache size: 27805, Positive conditional cache size: 0, Positive unconditional cache size: 27805, Negative cache size: 380, Negative conditional cache size: 0, Negative unconditional cache size: 380, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.7s, 1105 PlacesBefore, 517 PlacesAfterwards, 1221 TransitionsBefore, 631 TransitionsAfterwards, 1336160 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 791 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 122 ConcurrentYvCompositions, 2 ChoiceCompositions, 944 TotalNumberOfCompositions, 3578049 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1214973, independent: 1210994, independent conditional: 0, independent unconditional: 1210994, dependent: 3979, dependent conditional: 0, dependent unconditional: 3979, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 648370, independent: 647649, independent conditional: 0, independent unconditional: 647649, dependent: 721, dependent conditional: 0, dependent unconditional: 721, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1214973, independent: 563345, independent conditional: 0, independent unconditional: 563345, dependent: 3258, dependent conditional: 0, dependent unconditional: 3258, unknown: 648370, unknown conditional: 0, unknown unconditional: 648370] , Statistics on independence cache: Total cache size (in pairs): 32786, Positive cache size: 32392, Positive conditional cache size: 0, Positive unconditional cache size: 32392, Negative cache size: 394, Negative conditional cache size: 0, Negative unconditional cache size: 394, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.3s, 1142 PlacesBefore, 535 PlacesAfterwards, 1262 TransitionsBefore, 653 TransitionsAfterwards, 1431440 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 826 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 125 ConcurrentYvCompositions, 2 ChoiceCompositions, 982 TotalNumberOfCompositions, 3805361 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1153407, independent: 1149332, independent conditional: 0, independent unconditional: 1149332, dependent: 4075, dependent conditional: 0, dependent unconditional: 4075, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 682634, independent: 681870, independent conditional: 0, independent unconditional: 681870, dependent: 764, dependent conditional: 0, dependent unconditional: 764, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1153407, independent: 467462, independent conditional: 0, independent unconditional: 467462, dependent: 3311, dependent conditional: 0, dependent unconditional: 3311, unknown: 682634, unknown conditional: 0, unknown unconditional: 682634] , Statistics on independence cache: Total cache size (in pairs): 17678, Positive cache size: 17233, Positive conditional cache size: 0, Positive unconditional cache size: 17233, Negative cache size: 445, Negative conditional cache size: 0, Negative unconditional cache size: 445, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.9s, 1179 PlacesBefore, 553 PlacesAfterwards, 1303 TransitionsBefore, 674 TransitionsAfterwards, 1530000 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 840 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 129 ConcurrentYvCompositions, 3 ChoiceCompositions, 1001 TotalNumberOfCompositions, 4062480 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1232484, independent: 1228262, independent conditional: 0, independent unconditional: 1228262, dependent: 4222, dependent conditional: 0, dependent unconditional: 4222, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 729222, independent: 728470, independent conditional: 0, independent unconditional: 728470, dependent: 752, dependent conditional: 0, dependent unconditional: 752, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1232484, independent: 499792, independent conditional: 0, independent unconditional: 499792, dependent: 3470, dependent conditional: 0, dependent unconditional: 3470, unknown: 729222, unknown conditional: 0, unknown unconditional: 729222] , Statistics on independence cache: Total cache size (in pairs): 17408, Positive cache size: 16984, Positive conditional cache size: 0, Positive unconditional cache size: 16984, Negative cache size: 424, Negative conditional cache size: 0, Negative unconditional cache size: 424, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks [2023-08-27 05:20:18,679 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end Lipton Reduction Statistics: ReductionTime: 15.5s, 1216 PlacesBefore, 571 PlacesAfterwards, 1344 TransitionsBefore, 697 TransitionsAfterwards, 1631840 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 879 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 133 ConcurrentYvCompositions, 2 ChoiceCompositions, 1043 TotalNumberOfCompositions, 4372653 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1256347, independent: 1251962, independent conditional: 0, independent unconditional: 1251962, dependent: 4385, dependent conditional: 0, dependent unconditional: 4385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 767143, independent: 766393, independent conditional: 0, independent unconditional: 766393, dependent: 750, dependent conditional: 0, dependent unconditional: 750, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1256347, independent: 485569, independent conditional: 0, independent unconditional: 485569, dependent: 3635, dependent conditional: 0, dependent unconditional: 3635, unknown: 767143, unknown conditional: 0, unknown unconditional: 767143] , Statistics on independence cache: Total cache size (in pairs): 11170, Positive cache size: 10734, Positive conditional cache size: 0, Positive unconditional cache size: 10734, Negative cache size: 436, Negative conditional cache size: 0, Negative unconditional cache size: 436, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.1s, 1253 PlacesBefore, 589 PlacesAfterwards, 1385 TransitionsBefore, 719 TransitionsAfterwards, 1736960 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 914 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 137 ConcurrentYvCompositions, 2 ChoiceCompositions, 1082 TotalNumberOfCompositions, 4633680 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1503732, independent: 1499253, independent conditional: 0, independent unconditional: 1499253, dependent: 4479, dependent conditional: 0, dependent unconditional: 4479, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 834956, independent: 834163, independent conditional: 0, independent unconditional: 834163, dependent: 793, dependent conditional: 0, dependent unconditional: 793, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1503732, independent: 665090, independent conditional: 0, independent unconditional: 665090, dependent: 3686, dependent conditional: 0, dependent unconditional: 3686, unknown: 834956, unknown conditional: 0, unknown unconditional: 834956] , Statistics on independence cache: Total cache size (in pairs): 26852, Positive cache size: 26402, Positive conditional cache size: 0, Positive unconditional cache size: 26402, Negative cache size: 450, Negative conditional cache size: 0, Negative unconditional cache size: 450, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.0s, 1290 PlacesBefore, 607 PlacesAfterwards, 1426 TransitionsBefore, 741 TransitionsAfterwards, 1845360 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 941 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 142 ConcurrentYvCompositions, 2 ChoiceCompositions, 1114 TotalNumberOfCompositions, 4912655 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1678956, independent: 1674355, independent conditional: 0, independent unconditional: 1674355, dependent: 4601, dependent conditional: 0, dependent unconditional: 4601, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 895386, independent: 894507, independent conditional: 0, independent unconditional: 894507, dependent: 879, dependent conditional: 0, dependent unconditional: 879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1678956, independent: 779848, independent conditional: 0, independent unconditional: 779848, dependent: 3722, dependent conditional: 0, dependent unconditional: 3722, unknown: 895386, unknown conditional: 0, unknown unconditional: 895386] , Statistics on independence cache: Total cache size (in pairs): 39171, Positive cache size: 38707, Positive conditional cache size: 0, Positive unconditional cache size: 38707, Negative cache size: 464, Negative conditional cache size: 0, Negative unconditional cache size: 464, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.6s, 1327 PlacesBefore, 625 PlacesAfterwards, 1467 TransitionsBefore, 762 TransitionsAfterwards, 1957040 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 943 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 146 ConcurrentYvCompositions, 3 ChoiceCompositions, 1121 TotalNumberOfCompositions, 5865197 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1530775, independent: 1525120, independent conditional: 0, independent unconditional: 1525120, dependent: 5655, dependent conditional: 0, dependent unconditional: 5655, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 921119, independent: 920051, independent conditional: 0, independent unconditional: 920051, dependent: 1068, dependent conditional: 0, dependent unconditional: 1068, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1530775, independent: 605069, independent conditional: 0, independent unconditional: 605069, dependent: 4587, dependent conditional: 0, dependent unconditional: 4587, unknown: 921119, unknown conditional: 0, unknown unconditional: 921119] , Statistics on independence cache: Total cache size (in pairs): 15521, Positive cache size: 15008, Positive conditional cache size: 0, Positive unconditional cache size: 15008, Negative cache size: 513, Negative conditional cache size: 0, Negative unconditional cache size: 513, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.0s, 1364 PlacesBefore, 643 PlacesAfterwards, 1508 TransitionsBefore, 785 TransitionsAfterwards, 2072000 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 984 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 150 ConcurrentYvCompositions, 2 ChoiceCompositions, 1165 TotalNumberOfCompositions, 5546002 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1692486, independent: 1687555, independent conditional: 0, independent unconditional: 1687555, dependent: 4931, dependent conditional: 0, dependent unconditional: 4931, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 984321, independent: 983419, independent conditional: 0, independent unconditional: 983419, dependent: 902, dependent conditional: 0, dependent unconditional: 902, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1692486, independent: 704136, independent conditional: 0, independent unconditional: 704136, dependent: 4029, dependent conditional: 0, dependent unconditional: 4029, unknown: 984321, unknown conditional: 0, unknown unconditional: 984321] , Statistics on independence cache: Total cache size (in pairs): 24138, Positive cache size: 23646, Positive conditional cache size: 0, Positive unconditional cache size: 23646, Negative cache size: 492, Negative conditional cache size: 0, Negative unconditional cache size: 492, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.2s, 1401 PlacesBefore, 661 PlacesAfterwards, 1549 TransitionsBefore, 807 TransitionsAfterwards, 2190240 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 1003 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 154 ConcurrentYvCompositions, 2 ChoiceCompositions, 1188 TotalNumberOfCompositions, 5843847 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1938712, independent: 1933654, independent conditional: 0, independent unconditional: 1933654, dependent: 5058, dependent conditional: 0, dependent unconditional: 5058, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1054338, independent: 1053380, independent conditional: 0, independent unconditional: 1053380, dependent: 958, dependent conditional: 0, dependent unconditional: 958, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1938712, independent: 880274, independent conditional: 0, independent unconditional: 880274, dependent: 4100, dependent conditional: 0, dependent unconditional: 4100, unknown: 1054338, unknown conditional: 0, unknown unconditional: 1054338] , Statistics on independence cache: Total cache size (in pairs): 40671, Positive cache size: 40165, Positive conditional cache size: 0, Positive unconditional cache size: 40165, Negative cache size: 506, Negative conditional cache size: 0, Negative unconditional cache size: 506, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.1s, 1438 PlacesBefore, 679 PlacesAfterwards, 1590 TransitionsBefore, 829 TransitionsAfterwards, 2311760 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 1040 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 157 ConcurrentYvCompositions, 2 ChoiceCompositions, 1228 TotalNumberOfCompositions, 6201161 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1793690, independent: 1788472, independent conditional: 0, independent unconditional: 1788472, dependent: 5218, dependent conditional: 0, dependent unconditional: 5218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1088826, independent: 1087855, independent conditional: 0, independent unconditional: 1087855, dependent: 971, dependent conditional: 0, dependent unconditional: 971, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1793690, independent: 700617, independent conditional: 0, independent unconditional: 700617, dependent: 4247, dependent conditional: 0, dependent unconditional: 4247, unknown: 1088826, unknown conditional: 0, unknown unconditional: 1088826] , Statistics on independence cache: Total cache size (in pairs): 19045, Positive cache size: 18490, Positive conditional cache size: 0, Positive unconditional cache size: 18490, Negative cache size: 555, Negative conditional cache size: 0, Negative unconditional cache size: 555, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.7s, 1475 PlacesBefore, 697 PlacesAfterwards, 1631 TransitionsBefore, 851 TransitionsAfterwards, 2436560 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 1073 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 161 ConcurrentYvCompositions, 2 ChoiceCompositions, 1265 TotalNumberOfCompositions, 6548687 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2078976, independent: 2073627, independent conditional: 0, independent unconditional: 2073627, dependent: 5349, dependent conditional: 0, dependent unconditional: 5349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1169942, independent: 1168901, independent conditional: 0, independent unconditional: 1168901, dependent: 1041, dependent conditional: 0, dependent unconditional: 1041, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2078976, independent: 904726, independent conditional: 0, independent unconditional: 904726, dependent: 4308, dependent conditional: 0, dependent unconditional: 4308, unknown: 1169942, unknown conditional: 0, unknown unconditional: 1169942] , Statistics on independence cache: Total cache size (in pairs): 40343, Positive cache size: 39809, Positive conditional cache size: 0, Positive unconditional cache size: 39809, Negative cache size: 534, Negative conditional cache size: 0, Negative unconditional cache size: 534, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.7s, 1512 PlacesBefore, 715 PlacesAfterwards, 1672 TransitionsBefore, 873 TransitionsAfterwards, 2564640 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 1081 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 165 ConcurrentYvCompositions, 2 ChoiceCompositions, 1277 TotalNumberOfCompositions, 7694984 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2280039, independent: 2273581, independent conditional: 0, independent unconditional: 2273581, dependent: 6458, dependent conditional: 0, dependent unconditional: 6458, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1230976, independent: 1230001, independent conditional: 0, independent unconditional: 1230001, dependent: 975, dependent conditional: 0, dependent unconditional: 975, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2280039, independent: 1043580, independent conditional: 0, independent unconditional: 1043580, dependent: 5483, dependent conditional: 0, dependent unconditional: 5483, unknown: 1230976, unknown conditional: 0, unknown unconditional: 1230976] , Statistics on independence cache: Total cache size (in pairs): 49519, Positive cache size: 48971, Positive conditional cache size: 0, Positive unconditional cache size: 48971, Negative cache size: 548, Negative conditional cache size: 0, Negative unconditional cache size: 548, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.2s, 1549 PlacesBefore, 733 PlacesAfterwards, 1713 TransitionsBefore, 895 TransitionsAfterwards, 2696000 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 1132 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 169 ConcurrentYvCompositions, 2 ChoiceCompositions, 1332 TotalNumberOfCompositions, 7215619 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2184432, independent: 2178847, independent conditional: 0, independent unconditional: 2178847, dependent: 5585, dependent conditional: 0, dependent unconditional: 5585, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1269982, independent: 1268920, independent conditional: 0, independent unconditional: 1268920, dependent: 1062, dependent conditional: 0, dependent unconditional: 1062, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2184432, independent: 909927, independent conditional: 0, independent unconditional: 909927, dependent: 4523, dependent conditional: 0, dependent unconditional: 4523, unknown: 1269982, unknown conditional: 0, unknown unconditional: 1269982] , Statistics on independence cache: Total cache size (in pairs): 19227, Positive cache size: 18665, Positive conditional cache size: 0, Positive unconditional cache size: 18665, Negative cache size: 562, Negative conditional cache size: 0, Negative unconditional cache size: 562, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.8s, 1586 PlacesBefore, 751 PlacesAfterwards, 1754 TransitionsBefore, 916 TransitionsAfterwards, 2830640 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 1156 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 173 ConcurrentYvCompositions, 3 ChoiceCompositions, 1361 TotalNumberOfCompositions, 7614211 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2193160, independent: 2187379, independent conditional: 0, independent unconditional: 2187379, dependent: 5781, dependent conditional: 0, dependent unconditional: 5781, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1331893, independent: 1330814, independent conditional: 0, independent unconditional: 1330814, dependent: 1079, dependent conditional: 0, dependent unconditional: 1079, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2193160, independent: 856565, independent conditional: 0, independent unconditional: 856565, dependent: 4702, dependent conditional: 0, dependent unconditional: 4702, unknown: 1331893, unknown conditional: 0, unknown unconditional: 1331893] , Statistics on independence cache: Total cache size (in pairs): 20933, Positive cache size: 20302, Positive conditional cache size: 0, Positive unconditional cache size: 20302, Negative cache size: 631, Negative conditional cache size: 0, Negative unconditional cache size: 631, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.3s, 1623 PlacesBefore, 769 PlacesAfterwards, 1795 TransitionsBefore, 938 TransitionsAfterwards, 2968560 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 1186 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 178 ConcurrentYvCompositions, 3 ChoiceCompositions, 1396 TotalNumberOfCompositions, 7928718 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2685210, independent: 2679336, independent conditional: 0, independent unconditional: 2679336, dependent: 5874, dependent conditional: 0, dependent unconditional: 5874, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1448657, independent: 1447475, independent conditional: 0, independent unconditional: 1447475, dependent: 1182, dependent conditional: 0, dependent unconditional: 1182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2685210, independent: 1231861, independent conditional: 0, independent unconditional: 1231861, dependent: 4692, dependent conditional: 0, dependent unconditional: 4692, unknown: 1448657, unknown conditional: 0, unknown unconditional: 1448657] , Statistics on independence cache: Total cache size (in pairs): 75267, Positive cache size: 74675, Positive conditional cache size: 0, Positive unconditional cache size: 74675, Negative cache size: 592, Negative conditional cache size: 0, Negative unconditional cache size: 592, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.0s, 1660 PlacesBefore, 787 PlacesAfterwards, 1836 TransitionsBefore, 961 TransitionsAfterwards, 3109760 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 1208 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 181 ConcurrentYvCompositions, 2 ChoiceCompositions, 1420 TotalNumberOfCompositions, 9304268 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2766815, independent: 2759732, independent conditional: 0, independent unconditional: 2759732, dependent: 7083, dependent conditional: 0, dependent unconditional: 7083, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1500914, independent: 1499754, independent conditional: 0, independent unconditional: 1499754, dependent: 1160, dependent conditional: 0, dependent unconditional: 1160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2766815, independent: 1259978, independent conditional: 0, independent unconditional: 1259978, dependent: 5923, dependent conditional: 0, dependent unconditional: 5923, unknown: 1500914, unknown conditional: 0, unknown unconditional: 1500914] , Statistics on independence cache: Total cache size (in pairs): 65027, Positive cache size: 64423, Positive conditional cache size: 0, Positive unconditional cache size: 64423, Negative cache size: 604, Negative conditional cache size: 0, Negative unconditional cache size: 604, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.0s, 1697 PlacesBefore, 805 PlacesAfterwards, 1877 TransitionsBefore, 982 TransitionsAfterwards, 3254240 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 1224 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 185 ConcurrentYvCompositions, 3 ChoiceCompositions, 1441 TotalNumberOfCompositions, 8706730 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2752261, independent: 2746094, independent conditional: 0, independent unconditional: 2746094, dependent: 6167, dependent conditional: 0, dependent unconditional: 6167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1556181, independent: 1555000, independent conditional: 0, independent unconditional: 1555000, dependent: 1181, dependent conditional: 0, dependent unconditional: 1181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2752261, independent: 1191094, independent conditional: 0, independent unconditional: 1191094, dependent: 4986, dependent conditional: 0, dependent unconditional: 4986, unknown: 1556181, unknown conditional: 0, unknown unconditional: 1556181] , Statistics on independence cache: Total cache size (in pairs): 47551, Positive cache size: 46932, Positive conditional cache size: 0, Positive unconditional cache size: 46932, Negative cache size: 619, Negative conditional cache size: 0, Negative unconditional cache size: 619, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.2s, 1734 PlacesBefore, 823 PlacesAfterwards, 1918 TransitionsBefore, 1004 TransitionsAfterwards, 3402000 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 1264 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 189 ConcurrentYvCompositions, 3 ChoiceCompositions, 1485 TotalNumberOfCompositions, 10115026 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2731871, independent: 2724530, independent conditional: 0, independent unconditional: 2724530, dependent: 7341, dependent conditional: 0, dependent unconditional: 7341, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1604720, independent: 1603612, independent conditional: 0, independent unconditional: 1603612, dependent: 1108, dependent conditional: 0, dependent unconditional: 1108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2731871, independent: 1120918, independent conditional: 0, independent unconditional: 1120918, dependent: 6233, dependent conditional: 0, dependent unconditional: 6233, unknown: 1604720, unknown conditional: 0, unknown unconditional: 1604720] , Statistics on independence cache: Total cache size (in pairs): 23548, Positive cache size: 22914, Positive conditional cache size: 0, Positive unconditional cache size: 22914, Negative cache size: 634, Negative conditional cache size: 0, Negative unconditional cache size: 634, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.0s, 1771 PlacesBefore, 841 PlacesAfterwards, 1959 TransitionsBefore, 1027 TransitionsAfterwards, 3553040 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 1286 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 194 ConcurrentYvCompositions, 2 ChoiceCompositions, 1511 TotalNumberOfCompositions, 9560687 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2730913, independent: 2724446, independent conditional: 0, independent unconditional: 2724446, dependent: 6467, dependent conditional: 0, dependent unconditional: 6467, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1672484, independent: 1671337, independent conditional: 0, independent unconditional: 1671337, dependent: 1147, dependent conditional: 0, dependent unconditional: 1147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2730913, independent: 1053109, independent conditional: 0, independent unconditional: 1053109, dependent: 5320, dependent conditional: 0, dependent unconditional: 5320, unknown: 1672484, unknown conditional: 0, unknown unconditional: 1672484] , Statistics on independence cache: Total cache size (in pairs): 24184, Positive cache size: 23538, Positive conditional cache size: 0, Positive unconditional cache size: 23538, Negative cache size: 646, Negative conditional cache size: 0, Negative unconditional cache size: 646, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.3s, 1808 PlacesBefore, 859 PlacesAfterwards, 2000 TransitionsBefore, 1048 TransitionsAfterwards, 3707360 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 1318 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 197 ConcurrentYvCompositions, 3 ChoiceCompositions, 1547 TotalNumberOfCompositions, 11165335 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2971794, independent: 2964043, independent conditional: 0, independent unconditional: 2964043, dependent: 7751, dependent conditional: 0, dependent unconditional: 7751, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1752310, independent: 1751081, independent conditional: 0, independent unconditional: 1751081, dependent: 1229, dependent conditional: 0, dependent unconditional: 1229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2971794, independent: 1212962, independent conditional: 0, independent unconditional: 1212962, dependent: 6522, dependent conditional: 0, dependent unconditional: 6522, unknown: 1752310, unknown conditional: 0, unknown unconditional: 1752310] , Statistics on independence cache: Total cache size (in pairs): 34582, Positive cache size: 33918, Positive conditional cache size: 0, Positive unconditional cache size: 33918, Negative cache size: 664, Negative conditional cache size: 0, Negative unconditional cache size: 664, 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 1845 places, 2041 transitions, 6578 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 1845 places, 2041 transitions, 6578 flow and 1917920 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 0ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown