/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 04:57:27,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 04:57:27,095 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 04:57:27,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 04:57:27,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 04:57:27,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 04:57:27,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 04:57:27,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 04:57:27,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 04:57:27,114 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 04:57:27,114 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 04:57:27,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 04:57:27,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 04:57:27,115 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 04:57:27,115 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 04:57:27,115 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 04:57:27,115 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 04:57:27,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 04:57:27,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 04:57:27,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 04:57:27,116 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 04:57:27,117 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 04:57:27,117 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 04:57:27,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 04:57:27,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 04:57:27,118 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 04:57:27,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 04:57:27,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 04:57:27,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 04:57:27,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 04:57:27,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 04:57:27,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 04:57:27,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 04:57:27,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 04:57:27,120 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 04:57:27,120 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-24 04:57:27,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 04:57:27,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 04:57:27,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 04:57:27,375 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 04:57:27,375 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 04:57:27,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2023-08-24 04:57:28,363 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 04:57:28,562 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 04:57:28,563 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2023-08-24 04:57:28,577 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a18a012/f74301aef34148f3ab82bb798ce19e6d/FLAG2f5e377f1 [2023-08-24 04:57:28,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33a18a012/f74301aef34148f3ab82bb798ce19e6d [2023-08-24 04:57:28,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 04:57:28,595 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 04:57:28,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 04:57:28,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 04:57:28,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 04:57:28,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:28,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537e2915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28, skipping insertion in model container [2023-08-24 04:57:28,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:28,638 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 04:57:28,885 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2023-08-24 04:57:28,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 04:57:28,901 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 04:57:28,923 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-24 04:57:28,924 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-24 04:57:28,940 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2023-08-24 04:57:28,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 04:57:28,970 INFO L206 MainTranslator]: Completed translation [2023-08-24 04:57:28,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28 WrapperNode [2023-08-24 04:57:28,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 04:57:28,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 04:57:28,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 04:57:28,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 04:57:28,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:28,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:29,017 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 188 [2023-08-24 04:57:29,017 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 04:57:29,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 04:57:29,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 04:57:29,018 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 04:57:29,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:29,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:29,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:29,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:29,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:29,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:29,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:29,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:29,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 04:57:29,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 04:57:29,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 04:57:29,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 04:57:29,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (1/1) ... [2023-08-24 04:57:29,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 04:57:29,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 04:57:29,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-24 04:57:29,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-24 04:57:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 04:57:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-24 04:57:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-24 04:57:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 04:57:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 04:57:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 04:57:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 04:57:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 04:57:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 04:57:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 04:57:29,115 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 04:57:29,234 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 04:57:29,236 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 04:57:29,502 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 04:57:29,632 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 04:57:29,632 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-24 04:57:29,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 04:57:29 BoogieIcfgContainer [2023-08-24 04:57:29,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 04:57:29,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 04:57:29,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 04:57:29,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 04:57:29,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 04:57:28" (1/3) ... [2023-08-24 04:57:29,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34309cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 04:57:29, skipping insertion in model container [2023-08-24 04:57:29,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:57:28" (2/3) ... [2023-08-24 04:57:29,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34309cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 04:57:29, skipping insertion in model container [2023-08-24 04:57:29,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 04:57:29" (3/3) ... [2023-08-24 04:57:29,640 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-2.i [2023-08-24 04:57:29,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 04:57:29,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 04:57:29,651 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 04:57:29,704 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:29,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2023-08-24 04:57:29,779 INFO L124 PetriNetUnfolderBase]: 11/124 cut-off events. [2023-08-24 04:57:29,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 04:57:29,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 11/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2023-08-24 04:57:29,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 114 transitions, 233 flow [2023-08-24 04:57:29,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 114 transitions, 233 flow [2023-08-24 04:57:29,790 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:29,799 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 114 transitions, 233 flow [2023-08-24 04:57:29,801 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 114 transitions, 233 flow [2023-08-24 04:57:29,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2023-08-24 04:57:29,832 INFO L124 PetriNetUnfolderBase]: 11/124 cut-off events. [2023-08-24 04:57:29,833 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 04:57:29,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 11/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2023-08-24 04:57:29,835 INFO L119 LiptonReduction]: Number of co-enabled transitions 2028 [2023-08-24 04:57:33,169 INFO L134 LiptonReduction]: Checked pairs total: 2167 [2023-08-24 04:57:33,169 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-08-24 04:57:33,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:57:33,181 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:57:33,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:57:33,184 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:57:33,184 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2023-08-24 04:57:33,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 04:57:33,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:57:33,185 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-24 04:57:33,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:57:33,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:57:33,192 INFO L85 PathProgramCache]: Analyzing trace with hash 174361225, now seen corresponding path program 1 times [2023-08-24 04:57:33,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:57:33,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563307546] [2023-08-24 04:57:33,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:57:33,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:57:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:33,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:57:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:33,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:57:33,287 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:57:33,287 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:57:33,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 04:57:33,289 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:57:33,290 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:57:33,291 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:57:33,291 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-24 04:57:33,323 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:33,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 193 transitions, 398 flow [2023-08-24 04:57:33,349 INFO L124 PetriNetUnfolderBase]: 21/215 cut-off events. [2023-08-24 04:57:33,349 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 04:57:33,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2023-08-24 04:57:33,351 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 193 transitions, 398 flow [2023-08-24 04:57:33,353 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 193 transitions, 398 flow [2023-08-24 04:57:33,353 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:33,353 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 193 transitions, 398 flow [2023-08-24 04:57:33,353 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 193 transitions, 398 flow [2023-08-24 04:57:33,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 193 transitions, 398 flow [2023-08-24 04:57:33,372 INFO L124 PetriNetUnfolderBase]: 21/215 cut-off events. [2023-08-24 04:57:33,372 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 04:57:33,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2023-08-24 04:57:33,379 INFO L119 LiptonReduction]: Number of co-enabled transitions 16380 [2023-08-24 04:57:37,332 INFO L134 LiptonReduction]: Checked pairs total: 33585 [2023-08-24 04:57:37,332 INFO L136 LiptonReduction]: Total number of compositions: 155 [2023-08-24 04:57:37,334 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:57:37,334 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:57:37,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:57:37,338 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:57:37,338 INFO L124 PetriNetUnfolderBase]: 4/34 cut-off events. [2023-08-24 04:57:37,338 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 04:57:37,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:57:37,338 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-24 04:57:37,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:57:37,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:57:37,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1971217253, now seen corresponding path program 1 times [2023-08-24 04:57:37,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:57:37,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796503815] [2023-08-24 04:57:37,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:57:37,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:57:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:37,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:57:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:37,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:57:37,376 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:57:37,376 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:57:37,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 04:57:37,376 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:57:37,377 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:57:37,377 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:57:37,377 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-24 04:57:37,431 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:37,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 272 transitions, 565 flow [2023-08-24 04:57:37,470 INFO L124 PetriNetUnfolderBase]: 31/306 cut-off events. [2023-08-24 04:57:37,470 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 04:57:37,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 306 events. 31/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 814 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2023-08-24 04:57:37,473 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 272 transitions, 565 flow [2023-08-24 04:57:37,475 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 272 transitions, 565 flow [2023-08-24 04:57:37,475 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:37,475 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 272 transitions, 565 flow [2023-08-24 04:57:37,476 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 272 transitions, 565 flow [2023-08-24 04:57:37,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 272 transitions, 565 flow [2023-08-24 04:57:37,502 INFO L124 PetriNetUnfolderBase]: 31/306 cut-off events. [2023-08-24 04:57:37,502 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 04:57:37,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 306 events. 31/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 814 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2023-08-24 04:57:37,516 INFO L119 LiptonReduction]: Number of co-enabled transitions 43056 [2023-08-24 04:57:42,710 INFO L134 LiptonReduction]: Checked pairs total: 78907 [2023-08-24 04:57:42,710 INFO L136 LiptonReduction]: Total number of compositions: 218 [2023-08-24 04:57:42,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:57:42,712 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:57:42,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:57:42,717 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:57:42,717 INFO L124 PetriNetUnfolderBase]: 8/62 cut-off events. [2023-08-24 04:57:42,717 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 04:57:42,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:57:42,717 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-24 04:57:42,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:57:42,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:57:42,717 INFO L85 PathProgramCache]: Analyzing trace with hash -271960691, now seen corresponding path program 1 times [2023-08-24 04:57:42,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:57:42,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867828467] [2023-08-24 04:57:42,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:57:42,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:57:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:42,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:57:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:42,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:57:42,756 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:57:42,756 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:57:42,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 04:57:42,756 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:57:42,757 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:57:42,757 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:57:42,757 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-24 04:57:42,841 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:42,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 351 transitions, 734 flow [2023-08-24 04:57:42,887 INFO L124 PetriNetUnfolderBase]: 41/397 cut-off events. [2023-08-24 04:57:42,889 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 04:57:42,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 397 events. 41/397 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1280 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 324. Up to 10 conditions per place. [2023-08-24 04:57:42,898 INFO L82 GeneralOperation]: Start removeDead. Operand has 323 places, 351 transitions, 734 flow [2023-08-24 04:57:42,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 323 places, 351 transitions, 734 flow [2023-08-24 04:57:42,901 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:42,901 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 351 transitions, 734 flow [2023-08-24 04:57:42,901 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 351 transitions, 734 flow [2023-08-24 04:57:42,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 351 transitions, 734 flow [2023-08-24 04:57:42,948 INFO L124 PetriNetUnfolderBase]: 41/397 cut-off events. [2023-08-24 04:57:42,948 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 04:57:42,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 397 events. 41/397 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1280 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 324. Up to 10 conditions per place. [2023-08-24 04:57:42,966 INFO L119 LiptonReduction]: Number of co-enabled transitions 82056 [2023-08-24 04:57:49,581 INFO L134 LiptonReduction]: Checked pairs total: 163123 [2023-08-24 04:57:49,581 INFO L136 LiptonReduction]: Total number of compositions: 282 [2023-08-24 04:57:49,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:57:49,583 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:57:49,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:57:49,592 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:57:49,592 INFO L124 PetriNetUnfolderBase]: 16/101 cut-off events. [2023-08-24 04:57:49,592 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 04:57:49,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:57:49,592 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-08-24 04:57:49,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:57:49,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:57:49,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1535314522, now seen corresponding path program 1 times [2023-08-24 04:57:49,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:57:49,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41154989] [2023-08-24 04:57:49,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:57:49,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:57:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:49,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:57:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:49,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:57:49,655 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:57:49,655 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:57:49,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 04:57:49,655 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:57:49,656 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:57:49,656 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:57:49,656 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-24 04:57:49,707 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:49,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:49,770 INFO L124 PetriNetUnfolderBase]: 51/488 cut-off events. [2023-08-24 04:57:49,770 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 04:57:49,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 488 events. 51/488 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1751 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 410. Up to 12 conditions per place. [2023-08-24 04:57:49,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:49,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:49,783 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:49,783 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:49,783 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:49,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 430 transitions, 905 flow [2023-08-24 04:57:49,843 INFO L124 PetriNetUnfolderBase]: 51/488 cut-off events. [2023-08-24 04:57:49,843 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 04:57:49,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 488 events. 51/488 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1751 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 410. Up to 12 conditions per place. [2023-08-24 04:57:49,874 INFO L119 LiptonReduction]: Number of co-enabled transitions 133380 [2023-08-24 04:57:57,766 INFO L134 LiptonReduction]: Checked pairs total: 266074 [2023-08-24 04:57:57,766 INFO L136 LiptonReduction]: Total number of compositions: 342 [2023-08-24 04:57:57,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:57:57,768 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:57:57,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:57:57,777 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:57:57,777 INFO L124 PetriNetUnfolderBase]: 22/128 cut-off events. [2023-08-24 04:57:57,777 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 04:57:57,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:57:57,777 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:57:57,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:57:57,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:57:57,777 INFO L85 PathProgramCache]: Analyzing trace with hash -821437459, now seen corresponding path program 1 times [2023-08-24 04:57:57,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:57:57,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614547835] [2023-08-24 04:57:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:57:57,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:57:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:57,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:57:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:57:57,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:57:57,828 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:57:57,828 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:57:57,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 04:57:57,828 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:57:57,829 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:57:57,829 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:57:57,829 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-24 04:57:57,885 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:57:57,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:57,978 INFO L124 PetriNetUnfolderBase]: 61/579 cut-off events. [2023-08-24 04:57:57,978 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 04:57:57,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 579 events. 61/579 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2262 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 507. Up to 14 conditions per place. [2023-08-24 04:57:57,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:57,998 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:57,998 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:57:57,998 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:57,999 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:57,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 509 transitions, 1078 flow [2023-08-24 04:57:58,087 INFO L124 PetriNetUnfolderBase]: 61/579 cut-off events. [2023-08-24 04:57:58,088 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 04:57:58,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 579 events. 61/579 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2262 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 507. Up to 14 conditions per place. [2023-08-24 04:57:58,134 INFO L119 LiptonReduction]: Number of co-enabled transitions 197028 [2023-08-24 04:58:07,469 INFO L134 LiptonReduction]: Checked pairs total: 408501 [2023-08-24 04:58:07,469 INFO L136 LiptonReduction]: Total number of compositions: 409 [2023-08-24 04:58:07,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:58:07,471 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:58:07,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:58:07,484 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:58:07,484 INFO L124 PetriNetUnfolderBase]: 28/162 cut-off events. [2023-08-24 04:58:07,484 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 04:58:07,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:58:07,484 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:58:07,484 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:58:07,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:58:07,485 INFO L85 PathProgramCache]: Analyzing trace with hash 657747243, now seen corresponding path program 1 times [2023-08-24 04:58:07,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:58:07,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006873278] [2023-08-24 04:58:07,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:58:07,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:58:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:07,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:58:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:07,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:58:07,541 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:58:07,541 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:58:07,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 04:58:07,541 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:58:07,541 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:58:07,541 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:58:07,542 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-24 04:58:07,620 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:58:07,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 588 transitions, 1253 flow [2023-08-24 04:58:07,740 INFO L124 PetriNetUnfolderBase]: 71/670 cut-off events. [2023-08-24 04:58:07,741 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 04:58:07,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 670 events. 71/670 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2752 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-08-24 04:58:07,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 539 places, 588 transitions, 1253 flow [2023-08-24 04:58:07,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 539 places, 588 transitions, 1253 flow [2023-08-24 04:58:07,763 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:58:07,763 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 539 places, 588 transitions, 1253 flow [2023-08-24 04:58:07,763 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 539 places, 588 transitions, 1253 flow [2023-08-24 04:58:07,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 588 transitions, 1253 flow [2023-08-24 04:58:07,910 INFO L124 PetriNetUnfolderBase]: 71/670 cut-off events. [2023-08-24 04:58:07,910 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 04:58:07,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 670 events. 71/670 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2752 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-08-24 04:58:07,965 INFO L119 LiptonReduction]: Number of co-enabled transitions 273000 [2023-08-24 04:58:18,986 INFO L134 LiptonReduction]: Checked pairs total: 601155 [2023-08-24 04:58:18,987 INFO L136 LiptonReduction]: Total number of compositions: 471 [2023-08-24 04:58:18,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:58:18,988 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:58:18,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:58:19,004 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:58:19,004 INFO L124 PetriNetUnfolderBase]: 36/197 cut-off events. [2023-08-24 04:58:19,005 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 04:58:19,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:58:19,005 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:58:19,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:58:19,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:58:19,005 INFO L85 PathProgramCache]: Analyzing trace with hash 31876957, now seen corresponding path program 1 times [2023-08-24 04:58:19,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:58:19,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370202093] [2023-08-24 04:58:19,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:58:19,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:58:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:19,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:58:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:19,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:58:19,035 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:58:19,035 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:58:19,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 04:58:19,035 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:58:19,036 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:58:19,036 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:58:19,036 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-24 04:58:19,108 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:58:19,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 667 transitions, 1430 flow [2023-08-24 04:58:19,258 INFO L124 PetriNetUnfolderBase]: 81/761 cut-off events. [2023-08-24 04:58:19,258 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 04:58:19,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 761 events. 81/761 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3271 event pairs, 0 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 704. Up to 18 conditions per place. [2023-08-24 04:58:19,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 611 places, 667 transitions, 1430 flow [2023-08-24 04:58:19,288 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 667 transitions, 1430 flow [2023-08-24 04:58:19,288 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:58:19,288 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 611 places, 667 transitions, 1430 flow [2023-08-24 04:58:19,289 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 611 places, 667 transitions, 1430 flow [2023-08-24 04:58:19,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 667 transitions, 1430 flow [2023-08-24 04:58:19,476 INFO L124 PetriNetUnfolderBase]: 81/761 cut-off events. [2023-08-24 04:58:19,476 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 04:58:19,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 761 events. 81/761 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3271 event pairs, 0 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 704. Up to 18 conditions per place. [2023-08-24 04:58:19,535 INFO L119 LiptonReduction]: Number of co-enabled transitions 361296 [2023-08-24 04:58:31,439 INFO L134 LiptonReduction]: Checked pairs total: 812240 [2023-08-24 04:58:31,439 INFO L136 LiptonReduction]: Total number of compositions: 534 [2023-08-24 04:58:31,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:58:31,441 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:58:31,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:58:31,461 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:58:31,461 INFO L124 PetriNetUnfolderBase]: 43/234 cut-off events. [2023-08-24 04:58:31,461 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 04:58:31,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:58:31,461 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:58:31,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:58:31,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:58:31,462 INFO L85 PathProgramCache]: Analyzing trace with hash -277617304, now seen corresponding path program 1 times [2023-08-24 04:58:31,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:58:31,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75552224] [2023-08-24 04:58:31,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:58:31,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:58:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:31,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:58:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:31,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:58:31,494 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:58:31,494 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:58:31,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 04:58:31,494 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:58:31,494 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:58:31,494 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:58:31,495 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-24 04:58:31,579 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:58:31,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 746 transitions, 1609 flow [2023-08-24 04:58:31,761 INFO L124 PetriNetUnfolderBase]: 91/852 cut-off events. [2023-08-24 04:58:31,762 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 04:58:31,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 852 events. 91/852 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3787 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 804. Up to 20 conditions per place. [2023-08-24 04:58:31,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 683 places, 746 transitions, 1609 flow [2023-08-24 04:58:31,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 683 places, 746 transitions, 1609 flow [2023-08-24 04:58:31,798 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:58:31,798 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 683 places, 746 transitions, 1609 flow [2023-08-24 04:58:31,798 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 683 places, 746 transitions, 1609 flow [2023-08-24 04:58:31,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 746 transitions, 1609 flow [2023-08-24 04:58:32,010 INFO L124 PetriNetUnfolderBase]: 91/852 cut-off events. [2023-08-24 04:58:32,010 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 04:58:32,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 852 events. 91/852 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3787 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 804. Up to 20 conditions per place. [2023-08-24 04:58:32,103 INFO L119 LiptonReduction]: Number of co-enabled transitions 461916 [2023-08-24 04:58:45,859 INFO L134 LiptonReduction]: Checked pairs total: 929047 [2023-08-24 04:58:45,859 INFO L136 LiptonReduction]: Total number of compositions: 598 [2023-08-24 04:58:45,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:58:45,860 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:58:45,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:58:45,885 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:58:45,885 INFO L124 PetriNetUnfolderBase]: 50/267 cut-off events. [2023-08-24 04:58:45,886 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 04:58:45,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:58:45,886 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:58:45,886 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:58:45,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:58:45,886 INFO L85 PathProgramCache]: Analyzing trace with hash -392173397, now seen corresponding path program 1 times [2023-08-24 04:58:45,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:58:45,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564224320] [2023-08-24 04:58:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:58:45,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:58:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:45,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:58:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:58:45,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:58:45,943 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:58:45,943 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:58:45,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 04:58:45,943 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:58:45,946 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:58:45,946 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:58:45,946 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-24 04:58:46,024 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:58:46,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:46,271 INFO L124 PetriNetUnfolderBase]: 101/943 cut-off events. [2023-08-24 04:58:46,271 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 04:58:46,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 943 events. 101/943 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4319 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 905. Up to 22 conditions per place. [2023-08-24 04:58:46,302 INFO L82 GeneralOperation]: Start removeDead. Operand has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:46,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:46,311 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:58:46,311 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:46,311 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:46,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 755 places, 825 transitions, 1790 flow [2023-08-24 04:58:46,529 INFO L124 PetriNetUnfolderBase]: 101/943 cut-off events. [2023-08-24 04:58:46,529 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 04:58:46,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 943 events. 101/943 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4319 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 905. Up to 22 conditions per place. [2023-08-24 04:58:46,657 INFO L119 LiptonReduction]: Number of co-enabled transitions 574860 [2023-08-24 04:59:01,712 INFO L134 LiptonReduction]: Checked pairs total: 1167442 [2023-08-24 04:59:01,712 INFO L136 LiptonReduction]: Total number of compositions: 663 [2023-08-24 04:59:01,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:59:01,714 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:59:01,714 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:59:01,762 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:59:01,762 INFO L124 PetriNetUnfolderBase]: 57/301 cut-off events. [2023-08-24 04:59:01,762 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 04:59:01,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:59:01,762 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:59:01,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:59:01,763 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:59:01,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1279378807, now seen corresponding path program 1 times [2023-08-24 04:59:01,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:59:01,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272050955] [2023-08-24 04:59:01,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:59:01,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:59:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:01,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:59:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:01,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:59:01,798 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:59:01,798 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:59:01,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 04:59:01,798 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:59:01,799 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:59:01,799 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:59:01,799 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-24 04:59:01,892 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:59:01,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 827 places, 904 transitions, 1973 flow [2023-08-24 04:59:02,185 INFO L124 PetriNetUnfolderBase]: 111/1034 cut-off events. [2023-08-24 04:59:02,185 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 04:59:02,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1034 events. 111/1034 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4832 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1009. Up to 24 conditions per place. [2023-08-24 04:59:02,230 INFO L82 GeneralOperation]: Start removeDead. Operand has 827 places, 904 transitions, 1973 flow [2023-08-24 04:59:02,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 827 places, 904 transitions, 1973 flow [2023-08-24 04:59:02,242 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:59:02,242 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 827 places, 904 transitions, 1973 flow [2023-08-24 04:59:02,242 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 827 places, 904 transitions, 1973 flow [2023-08-24 04:59:02,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 827 places, 904 transitions, 1973 flow [2023-08-24 04:59:02,527 INFO L124 PetriNetUnfolderBase]: 111/1034 cut-off events. [2023-08-24 04:59:02,528 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 04:59:02,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1034 events. 111/1034 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4832 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1009. Up to 24 conditions per place. [2023-08-24 04:59:02,764 INFO L119 LiptonReduction]: Number of co-enabled transitions 700128 [2023-08-24 04:59:18,995 INFO L134 LiptonReduction]: Checked pairs total: 1457710 [2023-08-24 04:59:18,995 INFO L136 LiptonReduction]: Total number of compositions: 726 [2023-08-24 04:59:18,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:59:18,996 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:59:18,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:59:19,034 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:59:19,034 INFO L124 PetriNetUnfolderBase]: 64/332 cut-off events. [2023-08-24 04:59:19,034 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 04:59:19,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:59:19,034 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:59:19,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:59:19,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:59:19,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2091456884, now seen corresponding path program 1 times [2023-08-24 04:59:19,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:59:19,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661953054] [2023-08-24 04:59:19,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:59:19,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:59:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:19,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:59:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:19,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:59:19,092 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:59:19,092 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:59:19,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 04:59:19,092 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:59:19,093 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:59:19,093 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:59:19,093 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-24 04:59:19,226 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:59:19,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 983 transitions, 2158 flow [2023-08-24 04:59:19,576 INFO L124 PetriNetUnfolderBase]: 121/1125 cut-off events. [2023-08-24 04:59:19,576 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 04:59:19,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1125 events. 121/1125 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5341 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1114. Up to 26 conditions per place. [2023-08-24 04:59:19,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 899 places, 983 transitions, 2158 flow [2023-08-24 04:59:19,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 899 places, 983 transitions, 2158 flow [2023-08-24 04:59:19,644 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:59:19,645 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 899 places, 983 transitions, 2158 flow [2023-08-24 04:59:19,645 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 899 places, 983 transitions, 2158 flow [2023-08-24 04:59:19,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 983 transitions, 2158 flow [2023-08-24 04:59:19,994 INFO L124 PetriNetUnfolderBase]: 121/1125 cut-off events. [2023-08-24 04:59:19,995 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 04:59:20,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1125 events. 121/1125 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5341 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1114. Up to 26 conditions per place. [2023-08-24 04:59:20,169 INFO L119 LiptonReduction]: Number of co-enabled transitions 837720 [2023-08-24 04:59:38,248 INFO L134 LiptonReduction]: Checked pairs total: 1744929 [2023-08-24 04:59:38,248 INFO L136 LiptonReduction]: Total number of compositions: 788 [2023-08-24 04:59:38,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:59:38,250 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:59:38,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:59:38,293 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:59:38,293 INFO L124 PetriNetUnfolderBase]: 70/367 cut-off events. [2023-08-24 04:59:38,293 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 04:59:38,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:59:38,293 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:59:38,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:59:38,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:59:38,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1844041229, now seen corresponding path program 1 times [2023-08-24 04:59:38,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:59:38,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018566455] [2023-08-24 04:59:38,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:59:38,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:59:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:38,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:59:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:38,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:59:38,335 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:59:38,335 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:59:38,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 04:59:38,335 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:59:38,335 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:59:38,335 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:59:38,335 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-24 04:59:38,470 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:59:38,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:38,875 INFO L124 PetriNetUnfolderBase]: 131/1216 cut-off events. [2023-08-24 04:59:38,875 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 04:59:38,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1216 events. 131/1216 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5848 event pairs, 0 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1220. Up to 28 conditions per place. [2023-08-24 04:59:38,934 INFO L82 GeneralOperation]: Start removeDead. Operand has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:38,948 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:38,949 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:59:38,949 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:38,949 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:38,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 971 places, 1062 transitions, 2345 flow [2023-08-24 04:59:39,338 INFO L124 PetriNetUnfolderBase]: 131/1216 cut-off events. [2023-08-24 04:59:39,338 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 04:59:39,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1216 events. 131/1216 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5848 event pairs, 0 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1220. Up to 28 conditions per place. [2023-08-24 04:59:39,578 INFO L119 LiptonReduction]: Number of co-enabled transitions 987636 [2023-08-24 04:59:59,023 INFO L134 LiptonReduction]: Checked pairs total: 2255991 [2023-08-24 04:59:59,023 INFO L136 LiptonReduction]: Total number of compositions: 848 [2023-08-24 04:59:59,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:59:59,025 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:59:59,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:59:59,076 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:59:59,076 INFO L124 PetriNetUnfolderBase]: 79/407 cut-off events. [2023-08-24 04:59:59,076 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 04:59:59,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:59:59,076 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:59:59,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:59:59,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:59:59,077 INFO L85 PathProgramCache]: Analyzing trace with hash -268375454, now seen corresponding path program 1 times [2023-08-24 04:59:59,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:59:59,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965101941] [2023-08-24 04:59:59,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:59:59,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:59:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:59,107 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:59:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:59:59,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:59:59,134 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:59:59,134 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:59:59,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-24 04:59:59,134 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:59:59,135 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:59:59,135 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:59:59,135 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-24 04:59:59,254 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:59:59,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:59,711 INFO L124 PetriNetUnfolderBase]: 141/1307 cut-off events. [2023-08-24 04:59:59,711 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 04:59:59,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1307 events. 141/1307 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6367 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1327. Up to 30 conditions per place. [2023-08-24 04:59:59,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:59,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:59,876 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:59:59,876 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:59,876 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1043 places, 1141 transitions, 2534 flow [2023-08-24 04:59:59,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1141 transitions, 2534 flow [2023-08-24 05:00:00,319 INFO L124 PetriNetUnfolderBase]: 141/1307 cut-off events. [2023-08-24 05:00:00,320 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 05:00:00,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1307 events. 141/1307 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6367 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1327. Up to 30 conditions per place. [2023-08-24 05:00:00,602 INFO L119 LiptonReduction]: Number of co-enabled transitions 1149876 [2023-08-24 05:00:23,916 INFO L134 LiptonReduction]: Checked pairs total: 2617201 [2023-08-24 05:00:23,917 INFO L136 LiptonReduction]: Total number of compositions: 914 [2023-08-24 05:00:23,918 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:00:23,918 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:00:23,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:00:23,979 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:00:23,979 INFO L124 PetriNetUnfolderBase]: 84/437 cut-off events. [2023-08-24 05:00:23,979 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 05:00:23,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:00:23,979 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:00:23,980 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:00:23,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:00:23,980 INFO L85 PathProgramCache]: Analyzing trace with hash 72312746, now seen corresponding path program 1 times [2023-08-24 05:00:23,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:00:23,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577854040] [2023-08-24 05:00:23,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:00:23,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:00:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:00:24,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:00:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:00:24,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:00:24,028 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:00:24,028 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:00:24,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-24 05:00:24,028 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:00:24,029 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:00:24,029 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:00:24,029 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-24 05:00:24,173 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:00:24,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1220 transitions, 2725 flow [2023-08-24 05:00:24,815 INFO L124 PetriNetUnfolderBase]: 151/1398 cut-off events. [2023-08-24 05:00:24,815 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 05:00:24,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1398 events. 151/1398 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6913 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1435. Up to 32 conditions per place. [2023-08-24 05:00:24,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 1115 places, 1220 transitions, 2725 flow [2023-08-24 05:00:24,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1115 places, 1220 transitions, 2725 flow [2023-08-24 05:00:24,891 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:00:24,891 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1115 places, 1220 transitions, 2725 flow [2023-08-24 05:00:24,892 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1115 places, 1220 transitions, 2725 flow [2023-08-24 05:00:24,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1220 transitions, 2725 flow [2023-08-24 05:00:25,425 INFO L124 PetriNetUnfolderBase]: 151/1398 cut-off events. [2023-08-24 05:00:25,425 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 05:00:25,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1398 events. 151/1398 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6913 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1435. Up to 32 conditions per place. [2023-08-24 05:00:25,762 INFO L119 LiptonReduction]: Number of co-enabled transitions 1324440 [2023-08-24 05:00:50,021 INFO L134 LiptonReduction]: Checked pairs total: 2975786 [2023-08-24 05:00:50,021 INFO L136 LiptonReduction]: Total number of compositions: 974 [2023-08-24 05:00:50,022 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:00:50,023 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:00:50,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:00:50,089 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:00:50,089 INFO L124 PetriNetUnfolderBase]: 91/469 cut-off events. [2023-08-24 05:00:50,089 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 05:00:50,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:00:50,089 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:00:50,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:00:50,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:00:50,089 INFO L85 PathProgramCache]: Analyzing trace with hash 459114490, now seen corresponding path program 1 times [2023-08-24 05:00:50,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:00:50,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109686208] [2023-08-24 05:00:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:00:50,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:00:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:00:50,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:00:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:00:50,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:00:50,145 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:00:50,146 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:00:50,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-24 05:00:50,147 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:00:50,147 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:00:50,147 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:00:50,147 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-24 05:00:50,293 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:00:50,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:50,899 INFO L124 PetriNetUnfolderBase]: 161/1489 cut-off events. [2023-08-24 05:00:50,899 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 05:00:51,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1489 events. 161/1489 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7400 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1544. Up to 34 conditions per place. [2023-08-24 05:00:51,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:51,033 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:51,033 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:00:51,033 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:51,033 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:51,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1187 places, 1299 transitions, 2918 flow [2023-08-24 05:00:51,631 INFO L124 PetriNetUnfolderBase]: 161/1489 cut-off events. [2023-08-24 05:00:51,632 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 05:00:51,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1489 events. 161/1489 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7400 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1544. Up to 34 conditions per place. [2023-08-24 05:00:51,991 INFO L119 LiptonReduction]: Number of co-enabled transitions 1511328 [2023-08-24 05:01:18,202 INFO L134 LiptonReduction]: Checked pairs total: 3418394 [2023-08-24 05:01:18,202 INFO L136 LiptonReduction]: Total number of compositions: 1043 [2023-08-24 05:01:18,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:01:18,204 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:01:18,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:01:18,285 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:01:18,285 INFO L124 PetriNetUnfolderBase]: 98/507 cut-off events. [2023-08-24 05:01:18,285 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 05:01:18,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:01:18,286 INFO L208 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:01:18,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:01:18,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:01:18,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1151175113, now seen corresponding path program 1 times [2023-08-24 05:01:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:01:18,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353350846] [2023-08-24 05:01:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:01:18,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:01:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:01:18,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:01:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:01:18,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:01:18,338 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:01:18,338 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:01:18,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-24 05:01:18,338 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:01:18,339 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:01:18,339 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:01:18,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-24 05:01:18,499 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:01:18,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:01:19,184 INFO L124 PetriNetUnfolderBase]: 171/1580 cut-off events. [2023-08-24 05:01:19,185 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 05:01:19,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 1580 events. 171/1580 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7910 event pairs, 0 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 1654. Up to 36 conditions per place. [2023-08-24 05:01:19,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:01:19,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:01:19,326 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:01:19,326 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:01:19,326 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:01:19,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1259 places, 1378 transitions, 3113 flow [2023-08-24 05:01:20,011 INFO L124 PetriNetUnfolderBase]: 171/1580 cut-off events. [2023-08-24 05:01:20,011 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 05:01:20,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 1580 events. 171/1580 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7910 event pairs, 0 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 1654. Up to 36 conditions per place. [2023-08-24 05:01:20,375 INFO L119 LiptonReduction]: Number of co-enabled transitions 1710540 [2023-08-24 05:01:48,207 INFO L134 LiptonReduction]: Checked pairs total: 3860000 [2023-08-24 05:01:48,207 INFO L136 LiptonReduction]: Total number of compositions: 1094 [2023-08-24 05:01:48,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:01:48,209 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:01:48,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:01:48,303 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:01:48,303 INFO L124 PetriNetUnfolderBase]: 106/540 cut-off events. [2023-08-24 05:01:48,303 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 05:01:48,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:01:48,303 INFO L208 CegarLoopForPetriNet]: trace histogram [18, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:01:48,303 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:01:48,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:01:48,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2044922245, now seen corresponding path program 1 times [2023-08-24 05:01:48,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:01:48,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97743786] [2023-08-24 05:01:48,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:01:48,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:01:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:01:48,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:01:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:01:48,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:01:48,369 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:01:48,369 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:01:48,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-24 05:01:48,370 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:01:48,370 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:01:48,370 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:01:48,370 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-24 05:01:48,554 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:01:48,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:49,351 INFO L124 PetriNetUnfolderBase]: 181/1671 cut-off events. [2023-08-24 05:01:49,351 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 05:01:49,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1671 events. 181/1671 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8434 event pairs, 0 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1765. Up to 38 conditions per place. [2023-08-24 05:01:49,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:49,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:49,476 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:01:49,476 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:49,477 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:49,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1331 places, 1457 transitions, 3310 flow [2023-08-24 05:01:50,258 INFO L124 PetriNetUnfolderBase]: 181/1671 cut-off events. [2023-08-24 05:01:50,259 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 05:01:50,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1671 events. 181/1671 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8434 event pairs, 0 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1765. Up to 38 conditions per place. [2023-08-24 05:01:50,805 INFO L119 LiptonReduction]: Number of co-enabled transitions 1922076 [2023-08-24 05:02:20,558 INFO L134 LiptonReduction]: Checked pairs total: 4368552 [2023-08-24 05:02:20,562 INFO L136 LiptonReduction]: Total number of compositions: 1165 [2023-08-24 05:02:20,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:02:20,563 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:02:20,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:02:20,669 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:02:20,669 INFO L124 PetriNetUnfolderBase]: 113/575 cut-off events. [2023-08-24 05:02:20,669 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 05:02:20,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:02:20,669 INFO L208 CegarLoopForPetriNet]: trace histogram [19, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:02:20,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:02:20,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:02:20,669 INFO L85 PathProgramCache]: Analyzing trace with hash -28340825, now seen corresponding path program 1 times [2023-08-24 05:02:20,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:02:20,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054617726] [2023-08-24 05:02:20,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:02:20,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:02:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:02:20,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:02:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:02:20,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:02:20,740 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:02:20,740 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:02:20,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-24 05:02:20,741 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:02:20,741 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:02:20,741 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:02:20,741 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-24 05:02:20,904 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:02:20,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:02:21,856 INFO L124 PetriNetUnfolderBase]: 191/1762 cut-off events. [2023-08-24 05:02:21,857 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 05:02:21,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1762 events. 191/1762 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8943 event pairs, 0 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 1877. Up to 40 conditions per place. [2023-08-24 05:02:21,970 INFO L82 GeneralOperation]: Start removeDead. Operand has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:02:21,999 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:02:22,000 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:02:22,000 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:02:22,000 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:02:22,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1536 transitions, 3509 flow [2023-08-24 05:02:22,859 INFO L124 PetriNetUnfolderBase]: 191/1762 cut-off events. [2023-08-24 05:02:22,860 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 05:02:23,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1762 events. 191/1762 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8943 event pairs, 0 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 1877. Up to 40 conditions per place. [2023-08-24 05:02:23,547 INFO L119 LiptonReduction]: Number of co-enabled transitions 2145936 [2023-08-24 05:02:53,469 INFO L134 LiptonReduction]: Checked pairs total: 4909396 [2023-08-24 05:02:53,469 INFO L136 LiptonReduction]: Total number of compositions: 1227 [2023-08-24 05:02:53,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:02:53,471 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:02:53,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:02:53,587 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:02:53,587 INFO L124 PetriNetUnfolderBase]: 120/608 cut-off events. [2023-08-24 05:02:53,588 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 05:02:53,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:02:53,588 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:02:53,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:02:53,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:02:53,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1576653855, now seen corresponding path program 1 times [2023-08-24 05:02:53,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:02:53,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541708335] [2023-08-24 05:02:53,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:02:53,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:02:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:02:53,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:02:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:02:53,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:02:53,659 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:02:53,659 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:02:53,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-24 05:02:53,659 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:02:53,659 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:02:53,660 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:02:53,660 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-24 05:02:53,841 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:02:53,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:54,775 INFO L124 PetriNetUnfolderBase]: 201/1853 cut-off events. [2023-08-24 05:02:54,775 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 05:02:54,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1853 events. 201/1853 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9439 event pairs, 0 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 1990. Up to 42 conditions per place. [2023-08-24 05:02:54,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:55,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:55,131 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:02:55,131 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:55,131 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:55,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1615 transitions, 3710 flow [2023-08-24 05:02:56,057 INFO L124 PetriNetUnfolderBase]: 201/1853 cut-off events. [2023-08-24 05:02:56,057 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 05:02:56,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1853 events. 201/1853 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9439 event pairs, 0 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 1990. Up to 42 conditions per place. [2023-08-24 05:02:56,654 INFO L119 LiptonReduction]: Number of co-enabled transitions 2382120 [2023-08-24 05:03:27,946 INFO L134 LiptonReduction]: Checked pairs total: 5438150 [2023-08-24 05:03:27,946 INFO L136 LiptonReduction]: Total number of compositions: 1292 [2023-08-24 05:03:27,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:03:27,948 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:03:27,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:03:28,076 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:03:28,076 INFO L124 PetriNetUnfolderBase]: 126/642 cut-off events. [2023-08-24 05:03:28,076 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 05:03:28,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:03:28,076 INFO L208 CegarLoopForPetriNet]: trace histogram [21, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:03:28,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:03:28,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:03:28,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1517417906, now seen corresponding path program 1 times [2023-08-24 05:03:28,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:03:28,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044703323] [2023-08-24 05:03:28,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:03:28,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:03:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:03:28,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:03:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:03:28,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:03:28,154 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:03:28,154 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:03:28,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-24 05:03:28,155 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:03:28,155 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:03:28,155 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:03:28,155 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-24 05:03:28,412 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:03:28,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:29,650 INFO L124 PetriNetUnfolderBase]: 211/1944 cut-off events. [2023-08-24 05:03:29,650 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 05:03:29,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1944 events. 211/1944 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9979 event pairs, 0 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 2104. Up to 44 conditions per place. [2023-08-24 05:03:29,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:29,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:29,901 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:03:29,901 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:29,901 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:29,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1547 places, 1694 transitions, 3913 flow [2023-08-24 05:03:31,108 INFO L124 PetriNetUnfolderBase]: 211/1944 cut-off events. [2023-08-24 05:03:31,108 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 05:03:31,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1944 events. 211/1944 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9979 event pairs, 0 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 2104. Up to 44 conditions per place. [2023-08-24 05:03:31,714 INFO L119 LiptonReduction]: Number of co-enabled transitions 2630628 [2023-08-24 05:04:04,844 INFO L134 LiptonReduction]: Checked pairs total: 6023620 [2023-08-24 05:04:04,845 INFO L136 LiptonReduction]: Total number of compositions: 1352 [2023-08-24 05:04:04,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:04:04,846 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:04:04,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:04:04,985 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:04:04,985 INFO L124 PetriNetUnfolderBase]: 133/679 cut-off events. [2023-08-24 05:04:04,985 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 05:04:04,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:04:04,985 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:04:04,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:04:04,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:04:04,985 INFO L85 PathProgramCache]: Analyzing trace with hash 487342399, now seen corresponding path program 1 times [2023-08-24 05:04:04,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:04:04,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442590808] [2023-08-24 05:04:04,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:04:04,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:04:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:04:05,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:04:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:04:05,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:04:05,057 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:04:05,057 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:04:05,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-24 05:04:05,057 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:04:05,057 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:04:05,057 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:04:05,057 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-08-24 05:04:05,247 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:04:05,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:04:06,460 INFO L124 PetriNetUnfolderBase]: 221/2035 cut-off events. [2023-08-24 05:04:06,460 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 05:04:06,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 2035 events. 221/2035 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10464 event pairs, 0 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 2219. Up to 46 conditions per place. [2023-08-24 05:04:06,651 INFO L82 GeneralOperation]: Start removeDead. Operand has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:04:06,698 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:04:06,698 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:04:06,698 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:04:06,699 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:04:06,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1773 transitions, 4118 flow [2023-08-24 05:04:07,897 INFO L124 PetriNetUnfolderBase]: 221/2035 cut-off events. [2023-08-24 05:04:07,897 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 05:04:08,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 2035 events. 221/2035 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10464 event pairs, 0 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 2219. Up to 46 conditions per place. [2023-08-24 05:04:08,859 INFO L119 LiptonReduction]: Number of co-enabled transitions 2891460 [2023-08-24 05:04:44,225 INFO L134 LiptonReduction]: Checked pairs total: 5961511 [2023-08-24 05:04:44,225 INFO L136 LiptonReduction]: Total number of compositions: 1418 [2023-08-24 05:04:44,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:04:44,227 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:04:44,227 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:04:44,376 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:04:44,376 INFO L124 PetriNetUnfolderBase]: 141/711 cut-off events. [2023-08-24 05:04:44,376 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 05:04:44,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:04:44,376 INFO L208 CegarLoopForPetriNet]: trace histogram [23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:04:44,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:04:44,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:04:44,376 INFO L85 PathProgramCache]: Analyzing trace with hash -232205019, now seen corresponding path program 1 times [2023-08-24 05:04:44,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:04:44,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146197896] [2023-08-24 05:04:44,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:04:44,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:04:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:04:44,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:04:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:04:44,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:04:44,456 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:04:44,456 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:04:44,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-24 05:04:44,456 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:04:44,457 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:04:44,457 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:04:44,457 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-08-24 05:04:44,660 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:04:44,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:46,156 INFO L124 PetriNetUnfolderBase]: 231/2126 cut-off events. [2023-08-24 05:04:46,157 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 05:04:46,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 2126 events. 231/2126 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10988 event pairs, 0 based on Foata normal form. 0/1848 useless extension candidates. Maximal degree in co-relation 2335. Up to 48 conditions per place. [2023-08-24 05:04:46,293 INFO L82 GeneralOperation]: Start removeDead. Operand has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:46,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:46,437 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:04:46,437 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:46,438 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:46,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1691 places, 1852 transitions, 4325 flow [2023-08-24 05:04:47,936 INFO L124 PetriNetUnfolderBase]: 231/2126 cut-off events. [2023-08-24 05:04:47,937 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 05:04:48,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 2126 events. 231/2126 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10988 event pairs, 0 based on Foata normal form. 0/1848 useless extension candidates. Maximal degree in co-relation 2335. Up to 48 conditions per place. [2023-08-24 05:04:48,572 INFO L119 LiptonReduction]: Number of co-enabled transitions 3164616 [2023-08-24 05:05:25,339 INFO L134 LiptonReduction]: Checked pairs total: 6441936 [2023-08-24 05:05:25,339 INFO L136 LiptonReduction]: Total number of compositions: 1478 [2023-08-24 05:05:25,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:05:25,341 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:05:25,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:05:25,507 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:05:25,507 INFO L124 PetriNetUnfolderBase]: 148/745 cut-off events. [2023-08-24 05:05:25,507 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 05:05:25,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:05:25,507 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:05:25,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:05:25,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:05:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1237637143, now seen corresponding path program 1 times [2023-08-24 05:05:25,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:05:25,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010012548] [2023-08-24 05:05:25,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:05:25,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:05:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:05:25,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:05:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:05:25,588 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:05:25,588 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:05:25,588 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:05:25,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-24 05:05:25,588 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:05:25,589 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:05:25,589 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:05:25,589 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-08-24 05:05:25,800 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:05:25,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:27,481 INFO L124 PetriNetUnfolderBase]: 241/2217 cut-off events. [2023-08-24 05:05:27,481 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 05:05:27,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2217 events. 241/2217 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 11496 event pairs, 0 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2452. Up to 50 conditions per place. [2023-08-24 05:05:27,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:27,823 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:27,823 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:05:27,823 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:27,823 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:27,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1763 places, 1931 transitions, 4534 flow [2023-08-24 05:05:29,241 INFO L124 PetriNetUnfolderBase]: 241/2217 cut-off events. [2023-08-24 05:05:29,241 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 05:05:29,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2217 events. 241/2217 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 11496 event pairs, 0 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2452. Up to 50 conditions per place. [2023-08-24 05:05:30,034 INFO L119 LiptonReduction]: Number of co-enabled transitions 3450096 [2023-08-24 05:06:08,242 INFO L134 LiptonReduction]: Checked pairs total: 7116348 [2023-08-24 05:06:08,243 INFO L136 LiptonReduction]: Total number of compositions: 1545 [2023-08-24 05:06:08,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:06:08,244 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:06:08,244 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:06:08,423 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:06:08,423 INFO L124 PetriNetUnfolderBase]: 155/780 cut-off events. [2023-08-24 05:06:08,423 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 05:06:08,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:06:08,423 INFO L208 CegarLoopForPetriNet]: trace histogram [25, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:06:08,423 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:06:08,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:06:08,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1713990933, now seen corresponding path program 1 times [2023-08-24 05:06:08,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:06:08,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998856126] [2023-08-24 05:06:08,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:06:08,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:06:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:06:08,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:06:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:06:08,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:06:08,509 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:06:08,509 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:06:08,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-24 05:06:08,509 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:06:08,509 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:06:08,509 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:06:08,509 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-08-24 05:06:08,739 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:06:08,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:10,256 INFO L124 PetriNetUnfolderBase]: 251/2308 cut-off events. [2023-08-24 05:06:10,256 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 05:06:10,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2308 events. 251/2308 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11993 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 2570. Up to 52 conditions per place. [2023-08-24 05:06:10,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:10,543 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:10,543 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:06:10,544 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:10,544 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:10,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1835 places, 2010 transitions, 4745 flow [2023-08-24 05:06:12,221 INFO L124 PetriNetUnfolderBase]: 251/2308 cut-off events. [2023-08-24 05:06:12,221 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 05:06:12,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2308 events. 251/2308 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11993 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 2570. Up to 52 conditions per place. [2023-08-24 05:06:13,088 INFO L119 LiptonReduction]: Number of co-enabled transitions 3747900 [2023-08-24 05:06:53,534 INFO L134 LiptonReduction]: Checked pairs total: 7669208 [2023-08-24 05:06:53,534 INFO L136 LiptonReduction]: Total number of compositions: 1604 [2023-08-24 05:06:53,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:06:53,536 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:06:53,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:06:53,728 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:06:53,729 INFO L124 PetriNetUnfolderBase]: 162/816 cut-off events. [2023-08-24 05:06:53,729 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 05:06:53,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:06:53,729 INFO L208 CegarLoopForPetriNet]: trace histogram [26, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:06:53,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:06:53,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:06:53,729 INFO L85 PathProgramCache]: Analyzing trace with hash 782955840, now seen corresponding path program 1 times [2023-08-24 05:06:53,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:06:53,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168118975] [2023-08-24 05:06:53,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:06:53,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:06:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:06:53,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:06:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:06:53,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:06:53,828 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:06:53,828 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:06:53,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-24 05:06:53,829 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:06:53,829 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:06:53,829 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:06:53,829 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-08-24 05:06:54,042 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:06:54,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:06:56,000 INFO L124 PetriNetUnfolderBase]: 261/2399 cut-off events. [2023-08-24 05:06:56,001 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 05:06:56,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2399 events. 261/2399 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12492 event pairs, 0 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 2689. Up to 54 conditions per place. [2023-08-24 05:06:56,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:06:56,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:06:56,238 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:06:56,239 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:06:56,239 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:06:56,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1907 places, 2089 transitions, 4958 flow [2023-08-24 05:06:58,238 INFO L124 PetriNetUnfolderBase]: 261/2399 cut-off events. [2023-08-24 05:06:58,239 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 05:06:58,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2399 events. 261/2399 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12492 event pairs, 0 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 2689. Up to 54 conditions per place. [2023-08-24 05:06:59,035 INFO L119 LiptonReduction]: Number of co-enabled transitions 4058028 [2023-08-24 05:07:42,048 INFO L134 LiptonReduction]: Checked pairs total: 9032144 [2023-08-24 05:07:42,048 INFO L136 LiptonReduction]: Total number of compositions: 1674 [2023-08-24 05:07:42,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:07:42,050 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:07:42,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:07:42,292 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:07:42,293 INFO L124 PetriNetUnfolderBase]: 170/850 cut-off events. [2023-08-24 05:07:42,293 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 05:07:42,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:07:42,293 INFO L208 CegarLoopForPetriNet]: trace histogram [27, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:07:42,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:07:42,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:07:42,293 INFO L85 PathProgramCache]: Analyzing trace with hash -376605358, now seen corresponding path program 1 times [2023-08-24 05:07:42,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:07:42,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886284218] [2023-08-24 05:07:42,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:07:42,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:07:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:07:42,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:07:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:07:42,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:07:42,393 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:07:42,393 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:07:42,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-24 05:07:42,393 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:07:42,394 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:07:42,394 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:07:42,394 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-08-24 05:07:42,643 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:07:42,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1979 places, 2168 transitions, 5173 flow [2023-08-24 05:07:44,598 INFO L124 PetriNetUnfolderBase]: 271/2490 cut-off events. [2023-08-24 05:07:44,598 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 05:07:44,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 2490 events. 271/2490 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13032 event pairs, 0 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2809. Up to 56 conditions per place. [2023-08-24 05:07:44,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 1979 places, 2168 transitions, 5173 flow [2023-08-24 05:07:44,845 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1979 places, 2168 transitions, 5173 flow [2023-08-24 05:07:44,845 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:07:44,845 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1979 places, 2168 transitions, 5173 flow [2023-08-24 05:07:44,845 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1979 places, 2168 transitions, 5173 flow [2023-08-24 05:07:44,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1979 places, 2168 transitions, 5173 flow [2023-08-24 05:07:46,775 INFO L124 PetriNetUnfolderBase]: 271/2490 cut-off events. [2023-08-24 05:07:46,775 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 05:07:46,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 2490 events. 271/2490 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13032 event pairs, 0 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2809. Up to 56 conditions per place. [2023-08-24 05:07:47,661 INFO L119 LiptonReduction]: Number of co-enabled transitions 4380480 [2023-08-24 05:08:31,548 INFO L134 LiptonReduction]: Checked pairs total: 9078722 [2023-08-24 05:08:31,548 INFO L136 LiptonReduction]: Total number of compositions: 1730 [2023-08-24 05:08:31,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:08:31,550 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;@5e5af2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:08:31,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:08:31,773 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:08:31,773 INFO L124 PetriNetUnfolderBase]: 176/878 cut-off events. [2023-08-24 05:08:31,773 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 05:08:31,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:08:31,773 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] [2023-08-24 05:08:31,773 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:08:31,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:08:31,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1268315341, now seen corresponding path program 1 times [2023-08-24 05:08:31,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:08:31,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040435554] [2023-08-24 05:08:31,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:08:31,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:08:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:08:31,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:08:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:08:31,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:08:31,880 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:08:31,880 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:08:31,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-24 05:08:31,880 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:08:31,880 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:08:31,880 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:08:31,880 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-08-24 05:08:32,185 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:08:32,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2051 places, 2247 transitions, 5390 flow [2023-08-24 05:08:34,416 INFO L124 PetriNetUnfolderBase]: 281/2581 cut-off events. [2023-08-24 05:08:34,416 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-24 05:08:34,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 2581 events. 281/2581 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13541 event pairs, 0 based on Foata normal form. 0/2243 useless extension candidates. Maximal degree in co-relation 2930. Up to 58 conditions per place. [2023-08-24 05:08:34,623 INFO L82 GeneralOperation]: Start removeDead. Operand has 2051 places, 2247 transitions, 5390 flow [2023-08-24 05:08:34,666 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2051 places, 2247 transitions, 5390 flow [2023-08-24 05:08:34,666 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:08:34,667 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2051 places, 2247 transitions, 5390 flow [2023-08-24 05:08:34,667 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2051 places, 2247 transitions, 5390 flow [2023-08-24 05:08:34,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2051 places, 2247 transitions, 5390 flow [2023-08-24 05:08:36,639 INFO L124 PetriNetUnfolderBase]: 281/2581 cut-off events. [2023-08-24 05:08:36,639 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-24 05:08:36,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 2581 events. 281/2581 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13541 event pairs, 0 based on Foata normal form. 0/2243 useless extension candidates. Maximal degree in co-relation 2930. Up to 58 conditions per place. [2023-08-24 05:08:37,700 INFO L119 LiptonReduction]: Number of co-enabled transitions 4715256 Received shutdown request... [2023-08-24 05:09:19,254 WARN L266 SmtUtils]: Removed 8 from assertion stack [2023-08-24 05:09:19,254 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-08-24 05:09:19,255 INFO L158 Benchmark]: Toolchain (without parser) took 710660.29ms. Allocated memory was 404.8MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 379.7MB in the beginning and 2.4GB in the end (delta: -2.0GB). Peak memory consumption was 4.4GB. Max. memory is 16.0GB. [2023-08-24 05:09:19,255 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 404.8MB. Free memory was 382.2MB in the beginning and 382.1MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 05:09:19,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.18ms. Allocated memory is still 404.8MB. Free memory was 379.4MB in the beginning and 359.1MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 05:09:19,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.06ms. Allocated memory is still 404.8MB. Free memory was 359.1MB in the beginning and 356.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-24 05:09:19,255 INFO L158 Benchmark]: Boogie Preprocessor took 31.54ms. Allocated memory is still 404.8MB. Free memory was 356.3MB in the beginning and 354.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 05:09:19,256 INFO L158 Benchmark]: RCFGBuilder took 584.21ms. Allocated memory is still 404.8MB. Free memory was 354.6MB in the beginning and 365.8MB in the end (delta: -11.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-24 05:09:19,256 INFO L158 Benchmark]: TraceAbstraction took 709618.62ms. Allocated memory was 404.8MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 365.4MB in the beginning and 2.4GB in the end (delta: -2.0GB). Peak memory consumption was 4.4GB. Max. memory is 16.0GB. [2023-08-24 05:09:19,257 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 404.8MB. Free memory was 382.2MB in the beginning and 382.1MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 373.18ms. Allocated memory is still 404.8MB. Free memory was 379.4MB in the beginning and 359.1MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.06ms. Allocated memory is still 404.8MB. Free memory was 359.1MB in the beginning and 356.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.54ms. Allocated memory is still 404.8MB. Free memory was 356.3MB in the beginning and 354.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 584.21ms. Allocated memory is still 404.8MB. Free memory was 354.6MB in the beginning and 365.8MB in the end (delta: -11.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 709618.62ms. Allocated memory was 404.8MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 365.4MB in the beginning and 2.4GB in the end (delta: -2.0GB). Peak memory consumption was 4.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 107 PlacesBefore, 24 PlacesAfterwards, 114 TransitionsBefore, 28 TransitionsAfterwards, 2028 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 104 TotalNumberOfCompositions, 2167 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1862, independent: 1748, independent conditional: 0, independent unconditional: 1748, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1107, independent: 1072, independent conditional: 0, independent unconditional: 1072, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1862, independent: 676, independent conditional: 0, independent unconditional: 676, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 1107, unknown conditional: 0, unknown unconditional: 1107] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 179 PlacesBefore, 57 PlacesAfterwards, 193 TransitionsBefore, 66 TransitionsAfterwards, 16380 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 31 ConcurrentYvCompositions, 5 ChoiceCompositions, 155 TotalNumberOfCompositions, 33585 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17106, independent: 16608, independent conditional: 0, independent unconditional: 16608, dependent: 498, dependent conditional: 0, dependent unconditional: 498, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8710, independent: 8626, independent conditional: 0, independent unconditional: 8626, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17106, independent: 7982, independent conditional: 0, independent unconditional: 7982, dependent: 414, dependent conditional: 0, dependent unconditional: 414, unknown: 8710, unknown conditional: 0, unknown unconditional: 8710] , Statistics on independence cache: Total cache size (in pairs): 581, Positive cache size: 543, Positive conditional cache size: 0, Positive unconditional cache size: 543, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 251 PlacesBefore, 82 PlacesAfterwards, 272 TransitionsBefore, 96 TransitionsAfterwards, 43056 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 141 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 49 ConcurrentYvCompositions, 7 ChoiceCompositions, 218 TotalNumberOfCompositions, 78907 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40460, independent: 39863, independent conditional: 0, independent unconditional: 39863, dependent: 597, dependent conditional: 0, dependent unconditional: 597, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 22473, independent: 22323, independent conditional: 0, independent unconditional: 22323, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 40460, independent: 17540, independent conditional: 0, independent unconditional: 17540, dependent: 447, dependent conditional: 0, dependent unconditional: 447, unknown: 22473, unknown conditional: 0, unknown unconditional: 22473] , Statistics on independence cache: Total cache size (in pairs): 1432, Positive cache size: 1371, Positive conditional cache size: 0, Positive unconditional cache size: 1371, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7s, 323 PlacesBefore, 109 PlacesAfterwards, 351 TransitionsBefore, 128 TransitionsAfterwards, 82056 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 186 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 66 ConcurrentYvCompositions, 9 ChoiceCompositions, 282 TotalNumberOfCompositions, 163123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67650, independent: 66806, independent conditional: 0, independent unconditional: 66806, dependent: 844, dependent conditional: 0, dependent unconditional: 844, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41876, independent: 41693, independent conditional: 0, independent unconditional: 41693, dependent: 183, dependent conditional: 0, dependent unconditional: 183, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 67650, independent: 25113, independent conditional: 0, independent unconditional: 25113, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 41876, unknown conditional: 0, unknown unconditional: 41876] , Statistics on independence cache: Total cache size (in pairs): 1501, Positive cache size: 1419, Positive conditional cache size: 0, Positive unconditional cache size: 1419, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0s, 395 PlacesBefore, 132 PlacesAfterwards, 430 TransitionsBefore, 156 TransitionsAfterwards, 133380 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 235 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 75 ConcurrentYvCompositions, 11 ChoiceCompositions, 342 TotalNumberOfCompositions, 266074 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 119031, independent: 117969, independent conditional: 0, independent unconditional: 117969, dependent: 1062, dependent conditional: 0, dependent unconditional: 1062, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 68894, independent: 68657, independent conditional: 0, independent unconditional: 68657, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 119031, independent: 49312, independent conditional: 0, independent unconditional: 49312, dependent: 825, dependent conditional: 0, dependent unconditional: 825, unknown: 68894, unknown conditional: 0, unknown unconditional: 68894] , Statistics on independence cache: Total cache size (in pairs): 3926, Positive cache size: 3813, Positive conditional cache size: 0, Positive unconditional cache size: 3813, Negative cache size: 113, Negative conditional cache size: 0, Negative unconditional cache size: 113, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5s, 467 PlacesBefore, 158 PlacesAfterwards, 509 TransitionsBefore, 187 TransitionsAfterwards, 197028 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 277 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 98 ConcurrentYvCompositions, 13 ChoiceCompositions, 409 TotalNumberOfCompositions, 408501 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170237, independent: 168939, independent conditional: 0, independent unconditional: 168939, dependent: 1298, dependent conditional: 0, dependent unconditional: 1298, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 102255, independent: 101935, independent conditional: 0, independent unconditional: 101935, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170237, independent: 67004, independent conditional: 0, independent unconditional: 67004, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 102255, unknown conditional: 0, unknown unconditional: 102255] , Statistics on independence cache: Total cache size (in pairs): 5413, Positive cache size: 5283, Positive conditional cache size: 0, Positive unconditional cache size: 5283, Negative cache size: 130, Negative conditional cache size: 0, Negative unconditional cache size: 130, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.2s, 539 PlacesBefore, 182 PlacesAfterwards, 588 TransitionsBefore, 216 TransitionsAfterwards, 273000 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 328 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 107 ConcurrentYvCompositions, 15 ChoiceCompositions, 471 TotalNumberOfCompositions, 601155 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 255944, independent: 254194, independent conditional: 0, independent unconditional: 254194, dependent: 1750, dependent conditional: 0, dependent unconditional: 1750, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 140512, independent: 140155, independent conditional: 0, independent unconditional: 140155, dependent: 357, dependent conditional: 0, dependent unconditional: 357, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 255944, independent: 114039, independent conditional: 0, independent unconditional: 114039, dependent: 1393, dependent conditional: 0, dependent unconditional: 1393, unknown: 140512, unknown conditional: 0, unknown unconditional: 140512] , Statistics on independence cache: Total cache size (in pairs): 7374, Positive cache size: 7226, Positive conditional cache size: 0, Positive unconditional cache size: 7226, Negative cache size: 148, Negative conditional cache size: 0, Negative unconditional cache size: 148, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.2s, 611 PlacesBefore, 209 PlacesAfterwards, 667 TransitionsBefore, 248 TransitionsAfterwards, 361296 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 371 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 125 ConcurrentYvCompositions, 17 ChoiceCompositions, 534 TotalNumberOfCompositions, 812240 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 371076, independent: 369044, independent conditional: 0, independent unconditional: 369044, dependent: 2032, dependent conditional: 0, dependent unconditional: 2032, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 188435, independent: 188069, independent conditional: 0, independent unconditional: 188069, dependent: 366, dependent conditional: 0, dependent unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 371076, independent: 180975, independent conditional: 0, independent unconditional: 180975, dependent: 1666, dependent conditional: 0, dependent unconditional: 1666, unknown: 188435, unknown conditional: 0, unknown unconditional: 188435] , Statistics on independence cache: Total cache size (in pairs): 10489, Positive cache size: 10309, Positive conditional cache size: 0, Positive unconditional cache size: 10309, Negative cache size: 180, Negative conditional cache size: 0, Negative unconditional cache size: 180, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1s, 683 PlacesBefore, 234 PlacesAfterwards, 746 TransitionsBefore, 278 TransitionsAfterwards, 461916 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 413 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 145 ConcurrentYvCompositions, 19 ChoiceCompositions, 598 TotalNumberOfCompositions, 929047 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 328600, independent: 326715, independent conditional: 0, independent unconditional: 326715, dependent: 1885, dependent conditional: 0, dependent unconditional: 1885, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 229820, independent: 229385, independent conditional: 0, independent unconditional: 229385, dependent: 435, dependent conditional: 0, dependent unconditional: 435, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328600, independent: 97330, independent conditional: 0, independent unconditional: 97330, dependent: 1450, dependent conditional: 0, dependent unconditional: 1450, unknown: 229820, unknown conditional: 0, unknown unconditional: 229820] , Statistics on independence cache: Total cache size (in pairs): 5890, Positive cache size: 5653, Positive conditional cache size: 0, Positive unconditional cache size: 5653, Negative cache size: 237, Negative conditional cache size: 0, Negative unconditional cache size: 237, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.4s, 755 PlacesBefore, 259 PlacesAfterwards, 825 TransitionsBefore, 308 TransitionsAfterwards, 574860 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 469 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 152 ConcurrentYvCompositions, 21 ChoiceCompositions, 663 TotalNumberOfCompositions, 1167442 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 408681, independent: 406564, independent conditional: 0, independent unconditional: 406564, dependent: 2117, dependent conditional: 0, dependent unconditional: 2117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 286548, independent: 286087, independent conditional: 0, independent unconditional: 286087, dependent: 461, dependent conditional: 0, dependent unconditional: 461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 408681, independent: 120477, independent conditional: 0, independent unconditional: 120477, dependent: 1656, dependent conditional: 0, dependent unconditional: 1656, unknown: 286548, unknown conditional: 0, unknown unconditional: 286548] , Statistics on independence cache: Total cache size (in pairs): 6246, Positive cache size: 6040, Positive conditional cache size: 0, Positive unconditional cache size: 6040, Negative cache size: 206, Negative conditional cache size: 0, Negative unconditional cache size: 206, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.8s, 827 PlacesBefore, 282 PlacesAfterwards, 904 TransitionsBefore, 336 TransitionsAfterwards, 700128 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 521 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 161 ConcurrentYvCompositions, 23 ChoiceCompositions, 726 TotalNumberOfCompositions, 1457710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 496854, independent: 494488, independent conditional: 0, independent unconditional: 494488, dependent: 2366, dependent conditional: 0, dependent unconditional: 2366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 345217, independent: 344662, independent conditional: 0, independent unconditional: 344662, dependent: 555, dependent conditional: 0, dependent unconditional: 555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 496854, independent: 149826, independent conditional: 0, independent unconditional: 149826, dependent: 1811, dependent conditional: 0, dependent unconditional: 1811, unknown: 345217, unknown conditional: 0, unknown unconditional: 345217] , Statistics on independence cache: Total cache size (in pairs): 4736, Positive cache size: 4459, Positive conditional cache size: 0, Positive unconditional cache size: 4459, Negative cache size: 277, Negative conditional cache size: 0, Negative unconditional cache size: 277, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.6s, 899 PlacesBefore, 309 PlacesAfterwards, 983 TransitionsBefore, 368 TransitionsAfterwards, 837720 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 553 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 189 ConcurrentYvCompositions, 25 ChoiceCompositions, 788 TotalNumberOfCompositions, 1744929 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 608992, independent: 606412, independent conditional: 0, independent unconditional: 606412, dependent: 2580, dependent conditional: 0, dependent unconditional: 2580, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 422154, independent: 421613, independent conditional: 0, independent unconditional: 421613, dependent: 541, dependent conditional: 0, dependent unconditional: 541, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 608992, independent: 184799, independent conditional: 0, independent unconditional: 184799, dependent: 2039, dependent conditional: 0, dependent unconditional: 2039, unknown: 422154, unknown conditional: 0, unknown unconditional: 422154] , Statistics on independence cache: Total cache size (in pairs): 9936, Positive cache size: 9688, Positive conditional cache size: 0, Positive unconditional cache size: 9688, Negative cache size: 248, Negative conditional cache size: 0, Negative unconditional cache size: 248, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.1s, 971 PlacesBefore, 336 PlacesAfterwards, 1062 TransitionsBefore, 400 TransitionsAfterwards, 987636 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 602 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 198 ConcurrentYvCompositions, 27 ChoiceCompositions, 848 TotalNumberOfCompositions, 2255991 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1043298, independent: 1039985, independent conditional: 0, independent unconditional: 1039985, dependent: 3313, dependent conditional: 0, dependent unconditional: 3313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 516508, independent: 515973, independent conditional: 0, independent unconditional: 515973, dependent: 535, dependent conditional: 0, dependent unconditional: 535, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1043298, independent: 524012, independent conditional: 0, independent unconditional: 524012, dependent: 2778, dependent conditional: 0, dependent unconditional: 2778, unknown: 516508, unknown conditional: 0, unknown unconditional: 516508] , Statistics on independence cache: Total cache size (in pairs): 31596, Positive cache size: 31324, Positive conditional cache size: 0, Positive unconditional cache size: 31324, Negative cache size: 272, Negative conditional cache size: 0, Negative unconditional cache size: 272, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.0s, 1043 PlacesBefore, 362 PlacesAfterwards, 1141 TransitionsBefore, 431 TransitionsAfterwards, 1149876 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 648 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 216 ConcurrentYvCompositions, 29 ChoiceCompositions, 914 TotalNumberOfCompositions, 2617201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1006326, independent: 1002790, independent conditional: 0, independent unconditional: 1002790, dependent: 3536, dependent conditional: 0, dependent unconditional: 3536, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 586609, independent: 585980, independent conditional: 0, independent unconditional: 585980, dependent: 629, dependent conditional: 0, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1006326, independent: 416810, independent conditional: 0, independent unconditional: 416810, dependent: 2907, dependent conditional: 0, dependent unconditional: 2907, unknown: 586609, unknown conditional: 0, unknown unconditional: 586609] , Statistics on independence cache: Total cache size (in pairs): 23886, Positive cache size: 23580, Positive conditional cache size: 0, Positive unconditional cache size: 23580, Negative cache size: 306, Negative conditional cache size: 0, Negative unconditional cache size: 306, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.1s, 1115 PlacesBefore, 384 PlacesAfterwards, 1220 TransitionsBefore, 458 TransitionsAfterwards, 1324440 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 691 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 231 ConcurrentYvCompositions, 31 ChoiceCompositions, 974 TotalNumberOfCompositions, 2975786 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 936499, independent: 932727, independent conditional: 0, independent unconditional: 932727, dependent: 3772, dependent conditional: 0, dependent unconditional: 3772, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 654467, independent: 653636, independent conditional: 0, independent unconditional: 653636, dependent: 831, dependent conditional: 0, dependent unconditional: 831, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 936499, independent: 279091, independent conditional: 0, independent unconditional: 279091, dependent: 2941, dependent conditional: 0, dependent unconditional: 2941, unknown: 654467, unknown conditional: 0, unknown unconditional: 654467] , Statistics on independence cache: Total cache size (in pairs): 8504, Positive cache size: 8115, Positive conditional cache size: 0, Positive unconditional cache size: 8115, Negative cache size: 389, Negative conditional cache size: 0, Negative unconditional cache size: 389, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.2s, 1187 PlacesBefore, 411 PlacesAfterwards, 1299 TransitionsBefore, 490 TransitionsAfterwards, 1511328 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 737 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 252 ConcurrentYvCompositions, 33 ChoiceCompositions, 1043 TotalNumberOfCompositions, 3418394 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1081493, independent: 1077484, independent conditional: 0, independent unconditional: 1077484, dependent: 4009, dependent conditional: 0, dependent unconditional: 4009, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 754071, independent: 753358, independent conditional: 0, independent unconditional: 753358, dependent: 713, dependent conditional: 0, dependent unconditional: 713, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1081493, independent: 324126, independent conditional: 0, independent unconditional: 324126, dependent: 3296, dependent conditional: 0, dependent unconditional: 3296, unknown: 754071, unknown conditional: 0, unknown unconditional: 754071] , Statistics on independence cache: Total cache size (in pairs): 12595, Positive cache size: 12261, Positive conditional cache size: 0, Positive unconditional cache size: 12261, Negative cache size: 334, Negative conditional cache size: 0, Negative unconditional cache size: 334, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.9s, 1259 PlacesBefore, 435 PlacesAfterwards, 1378 TransitionsBefore, 519 TransitionsAfterwards, 1710540 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 780 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 258 ConcurrentYvCompositions, 35 ChoiceCompositions, 1094 TotalNumberOfCompositions, 3860000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1209719, independent: 1205420, independent conditional: 0, independent unconditional: 1205420, dependent: 4299, dependent conditional: 0, dependent unconditional: 4299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 842621, independent: 841510, independent conditional: 0, independent unconditional: 841510, dependent: 1111, dependent conditional: 0, dependent unconditional: 1111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1209719, independent: 363910, independent conditional: 0, independent unconditional: 363910, dependent: 3188, dependent conditional: 0, dependent unconditional: 3188, unknown: 842621, unknown conditional: 0, unknown unconditional: 842621] , Statistics on independence cache: Total cache size (in pairs): 13044, Positive cache size: 12394, Positive conditional cache size: 0, Positive unconditional cache size: 12394, Negative cache size: 650, Negative conditional cache size: 0, Negative unconditional cache size: 650, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.1s, 1331 PlacesBefore, 460 PlacesAfterwards, 1457 TransitionsBefore, 549 TransitionsAfterwards, 1922076 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 822 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 285 ConcurrentYvCompositions, 37 ChoiceCompositions, 1165 TotalNumberOfCompositions, 4368552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1371150, independent: 1366584, independent conditional: 0, independent unconditional: 1366584, dependent: 4566, dependent conditional: 0, dependent unconditional: 4566, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 954516, independent: 953668, independent conditional: 0, independent unconditional: 953668, dependent: 848, dependent conditional: 0, dependent unconditional: 848, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1371150, independent: 412916, independent conditional: 0, independent unconditional: 412916, dependent: 3718, dependent conditional: 0, dependent unconditional: 3718, unknown: 954516, unknown conditional: 0, unknown unconditional: 954516] , Statistics on independence cache: Total cache size (in pairs): 15525, Positive cache size: 15150, Positive conditional cache size: 0, Positive unconditional cache size: 15150, Negative cache size: 375, Negative conditional cache size: 0, Negative unconditional cache size: 375, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.5s, 1403 PlacesBefore, 486 PlacesAfterwards, 1536 TransitionsBefore, 580 TransitionsAfterwards, 2145936 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 866 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 301 ConcurrentYvCompositions, 39 ChoiceCompositions, 1227 TotalNumberOfCompositions, 4909396 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1533663, independent: 1528833, independent conditional: 0, independent unconditional: 1528833, dependent: 4830, dependent conditional: 0, dependent unconditional: 4830, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1066939, independent: 1066086, independent conditional: 0, independent unconditional: 1066086, dependent: 853, dependent conditional: 0, dependent unconditional: 853, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1533663, independent: 462747, independent conditional: 0, independent unconditional: 462747, dependent: 3977, dependent conditional: 0, dependent unconditional: 3977, unknown: 1066939, unknown conditional: 0, unknown unconditional: 1066939] , Statistics on independence cache: Total cache size (in pairs): 18759, Positive cache size: 18362, Positive conditional cache size: 0, Positive unconditional cache size: 18362, Negative cache size: 397, Negative conditional cache size: 0, Negative unconditional cache size: 397, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.8s, 1475 PlacesBefore, 512 PlacesAfterwards, 1615 TransitionsBefore, 611 TransitionsAfterwards, 2382120 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 923 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 307 ConcurrentYvCompositions, 41 ChoiceCompositions, 1292 TotalNumberOfCompositions, 5438150 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1979618, independent: 1974553, independent conditional: 0, independent unconditional: 1974553, dependent: 5065, dependent conditional: 0, dependent unconditional: 5065, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1211333, independent: 1210201, independent conditional: 0, independent unconditional: 1210201, dependent: 1132, dependent conditional: 0, dependent unconditional: 1132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1979618, independent: 764352, independent conditional: 0, independent unconditional: 764352, dependent: 3933, dependent conditional: 0, dependent unconditional: 3933, unknown: 1211333, unknown conditional: 0, unknown unconditional: 1211333] , Statistics on independence cache: Total cache size (in pairs): 46643, Positive cache size: 46102, Positive conditional cache size: 0, Positive unconditional cache size: 46102, Negative cache size: 541, Negative conditional cache size: 0, Negative unconditional cache size: 541, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.9s, 1547 PlacesBefore, 539 PlacesAfterwards, 1694 TransitionsBefore, 643 TransitionsAfterwards, 2630628 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 963 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 325 ConcurrentYvCompositions, 43 ChoiceCompositions, 1352 TotalNumberOfCompositions, 6023620 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1869483, independent: 1864134, independent conditional: 0, independent unconditional: 1864134, dependent: 5349, dependent conditional: 0, dependent unconditional: 5349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1301424, independent: 1300446, independent conditional: 0, independent unconditional: 1300446, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1869483, independent: 563688, independent conditional: 0, independent unconditional: 563688, dependent: 4371, dependent conditional: 0, dependent unconditional: 4371, unknown: 1301424, unknown conditional: 0, unknown unconditional: 1301424] , Statistics on independence cache: Total cache size (in pairs): 22128, Positive cache size: 21686, Positive conditional cache size: 0, Positive unconditional cache size: 21686, Negative cache size: 442, Negative conditional cache size: 0, Negative unconditional cache size: 442, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.5s, 1619 PlacesBefore, 562 PlacesAfterwards, 1773 TransitionsBefore, 671 TransitionsAfterwards, 2891460 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1007 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 345 ConcurrentYvCompositions, 45 ChoiceCompositions, 1418 TotalNumberOfCompositions, 5961511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1977376, independent: 1972699, independent conditional: 0, independent unconditional: 1972699, dependent: 4677, dependent conditional: 0, dependent unconditional: 4677, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1437402, independent: 1436305, independent conditional: 0, independent unconditional: 1436305, dependent: 1097, dependent conditional: 0, dependent unconditional: 1097, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1977376, independent: 536394, independent conditional: 0, independent unconditional: 536394, dependent: 3580, dependent conditional: 0, dependent unconditional: 3580, unknown: 1437402, unknown conditional: 0, unknown unconditional: 1437402] , Statistics on independence cache: Total cache size (in pairs): 20544, Positive cache size: 20084, Positive conditional cache size: 0, Positive unconditional cache size: 20084, Negative cache size: 460, Negative conditional cache size: 0, Negative unconditional cache size: 460, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.9s, 1691 PlacesBefore, 585 PlacesAfterwards, 1852 TransitionsBefore, 699 TransitionsAfterwards, 3164616 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1056 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 354 ConcurrentYvCompositions, 47 ChoiceCompositions, 1478 TotalNumberOfCompositions, 6441936 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2178584, independent: 2173741, independent conditional: 0, independent unconditional: 2173741, dependent: 4843, dependent conditional: 0, dependent unconditional: 4843, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1574360, independent: 1573395, independent conditional: 0, independent unconditional: 1573395, dependent: 965, dependent conditional: 0, dependent unconditional: 965, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2178584, independent: 600346, independent conditional: 0, independent unconditional: 600346, dependent: 3878, dependent conditional: 0, dependent unconditional: 3878, unknown: 1574360, unknown conditional: 0, unknown unconditional: 1574360] , Statistics on independence cache: Total cache size (in pairs): 31974, Positive cache size: 31494, Positive conditional cache size: 0, Positive unconditional cache size: 31494, Negative cache size: 480, Negative conditional cache size: 0, Negative unconditional cache size: 480, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.4s, 1763 PlacesBefore, 610 PlacesAfterwards, 1931 TransitionsBefore, 729 TransitionsAfterwards, 3450096 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1112 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 363 ConcurrentYvCompositions, 49 ChoiceCompositions, 1545 TotalNumberOfCompositions, 7116348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3255295, independent: 3250185, independent conditional: 0, independent unconditional: 3250185, dependent: 5110, dependent conditional: 0, dependent unconditional: 5110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1793678, independent: 1792473, independent conditional: 0, independent unconditional: 1792473, dependent: 1205, dependent conditional: 0, dependent unconditional: 1205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3255295, independent: 1457712, independent conditional: 0, independent unconditional: 1457712, dependent: 3905, dependent conditional: 0, dependent unconditional: 3905, unknown: 1793678, unknown conditional: 0, unknown unconditional: 1793678] , Statistics on independence cache: Total cache size (in pairs): 102175, Positive cache size: 101651, Positive conditional cache size: 0, Positive unconditional cache size: 101651, Negative cache size: 524, Negative conditional cache size: 0, Negative unconditional cache size: 524, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.0s, 1835 PlacesBefore, 637 PlacesAfterwards, 2010 TransitionsBefore, 761 TransitionsAfterwards, 3747900 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1144 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 388 ConcurrentYvCompositions, 51 ChoiceCompositions, 1604 TotalNumberOfCompositions, 7669208 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3292501, independent: 3287238, independent conditional: 0, independent unconditional: 3287238, dependent: 5263, dependent conditional: 0, dependent unconditional: 5263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1944403, independent: 1943259, independent conditional: 0, independent unconditional: 1943259, dependent: 1144, dependent conditional: 0, dependent unconditional: 1144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3292501, independent: 1343979, independent conditional: 0, independent unconditional: 1343979, dependent: 4119, dependent conditional: 0, dependent unconditional: 4119, unknown: 1944403, unknown conditional: 0, unknown unconditional: 1944403] , Statistics on independence cache: Total cache size (in pairs): 98452, Positive cache size: 97903, Positive conditional cache size: 0, Positive unconditional cache size: 97903, Negative cache size: 549, Negative conditional cache size: 0, Negative unconditional cache size: 549, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.8s, 1907 PlacesBefore, 661 PlacesAfterwards, 2089 TransitionsBefore, 790 TransitionsAfterwards, 4058028 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 1190 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 410 ConcurrentYvCompositions, 53 ChoiceCompositions, 1674 TotalNumberOfCompositions, 9032144 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3639342, independent: 3632892, independent conditional: 0, independent unconditional: 3632892, dependent: 6450, dependent conditional: 0, dependent unconditional: 6450, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2097690, independent: 2096081, independent conditional: 0, independent unconditional: 2096081, dependent: 1609, dependent conditional: 0, dependent unconditional: 1609, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3639342, independent: 1536811, independent conditional: 0, independent unconditional: 1536811, dependent: 4841, dependent conditional: 0, dependent unconditional: 4841, unknown: 2097690, unknown conditional: 0, unknown unconditional: 2097690] , Statistics on independence cache: Total cache size (in pairs): 103634, Positive cache size: 102988, Positive conditional cache size: 0, Positive unconditional cache size: 102988, Negative cache size: 646, Negative conditional cache size: 0, Negative unconditional cache size: 646, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.7s, 1979 PlacesBefore, 684 PlacesAfterwards, 2168 TransitionsBefore, 818 TransitionsAfterwards, 4380480 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1243 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 411 ConcurrentYvCompositions, 55 ChoiceCompositions, 1730 TotalNumberOfCompositions, 9078722 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3607464, independent: 3601675, independent conditional: 0, independent unconditional: 3601675, dependent: 5789, dependent conditional: 0, dependent unconditional: 5789, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2243733, independent: 2242244, independent conditional: 0, independent unconditional: 2242244, dependent: 1489, dependent conditional: 0, dependent unconditional: 1489, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3607464, independent: 1359431, independent conditional: 0, independent unconditional: 1359431, dependent: 4300, dependent conditional: 0, dependent unconditional: 4300, unknown: 2243733, unknown conditional: 0, unknown unconditional: 2243733] , Statistics on independence cache: Total cache size (in pairs): 103073, Positive cache size: 102405, Positive conditional cache size: 0, Positive unconditional cache size: 102405, Negative cache size: 668, Negative conditional cache size: 0, Negative unconditional cache size: 668, 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 2051 places, 2247 transitions, 5390 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 2051 places, 2247 transitions, 5390 flow and 800150 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 22 for 7ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown