/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/goblint-regression/28-race_reach_22-deref_read_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 06:31:48,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 06:31:49,011 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 06:31:49,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 06:31:49,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 06:31:49,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 06:31:49,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 06:31:49,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 06:31:49,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 06:31:49,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 06:31:49,032 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 06:31:49,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 06:31:49,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 06:31:49,033 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 06:31:49,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 06:31:49,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 06:31:49,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 06:31:49,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 06:31:49,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 06:31:49,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 06:31:49,034 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 06:31:49,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 06:31:49,035 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 06:31:49,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 06:31:49,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 06:31:49,036 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 06:31:49,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 06:31:49,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 06:31:49,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 06:31:49,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 06:31:49,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 06:31:49,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 06:31:49,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 06:31:49,037 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 06:31:49,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 06:31:49,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-24 06:31:49,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 06:31:49,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 06:31:49,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 06:31:49,295 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 06:31:49,295 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 06:31:49,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_22-deref_read_racefree.i [2023-08-24 06:31:50,575 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 06:31:50,770 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 06:31:50,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_22-deref_read_racefree.i [2023-08-24 06:31:50,784 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532a69112/a26b1088df6f456ea322ece616ba74b5/FLAGc626144d9 [2023-08-24 06:31:50,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532a69112/a26b1088df6f456ea322ece616ba74b5 [2023-08-24 06:31:50,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 06:31:50,803 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 06:31:50,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 06:31:50,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 06:31:50,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 06:31:50,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:31:50" (1/1) ... [2023-08-24 06:31:50,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@648d4e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:50, skipping insertion in model container [2023-08-24 06:31:50,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:31:50" (1/1) ... [2023-08-24 06:31:50,846 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 06:31:51,088 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_22-deref_read_racefree.i[30176,30189] [2023-08-24 06:31:51,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 06:31:51,109 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 06:31:51,126 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-24 06:31:51,128 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-24 06:31:51,134 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_22-deref_read_racefree.i[30176,30189] [2023-08-24 06:31:51,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 06:31:51,164 INFO L206 MainTranslator]: Completed translation [2023-08-24 06:31:51,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51 WrapperNode [2023-08-24 06:31:51,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 06:31:51,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 06:31:51,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 06:31:51,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 06:31:51,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,209 INFO L138 Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2023-08-24 06:31:51,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 06:31:51,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 06:31:51,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 06:31:51,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 06:31:51,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 06:31:51,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 06:31:51,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 06:31:51,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 06:31:51,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (1/1) ... [2023-08-24 06:31:51,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 06:31:51,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 06:31:51,261 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 06:31:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 06:31:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 06:31:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-24 06:31:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 06:31:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 06:31:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-24 06:31:51,285 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-24 06:31:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 06:31:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 06:31:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 06:31:51,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 06:31:51,286 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 06:31:51,288 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 06:31:51,401 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 06:31:51,403 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 06:31:51,595 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 06:31:51,600 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 06:31:51,600 INFO L302 CfgBuilder]: Removed 9 assume(true) statements. [2023-08-24 06:31:51,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:31:51 BoogieIcfgContainer [2023-08-24 06:31:51,602 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 06:31:51,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 06:31:51,603 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 06:31:51,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 06:31:51,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:31:50" (1/3) ... [2023-08-24 06:31:51,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cb06d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:31:51, skipping insertion in model container [2023-08-24 06:31:51,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:31:51" (2/3) ... [2023-08-24 06:31:51,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cb06d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:31:51, skipping insertion in model container [2023-08-24 06:31:51,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:31:51" (3/3) ... [2023-08-24 06:31:51,607 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_22-deref_read_racefree.i [2023-08-24 06:31:51,621 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 06:31:51,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 06:31:51,622 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 06:31:51,684 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:31:51,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 101 transitions, 207 flow [2023-08-24 06:31:51,770 INFO L124 PetriNetUnfolderBase]: 14/133 cut-off events. [2023-08-24 06:31:51,771 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 06:31:51,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 133 events. 14/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 291 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 69. Up to 4 conditions per place. [2023-08-24 06:31:51,776 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 101 transitions, 207 flow [2023-08-24 06:31:51,780 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 101 transitions, 207 flow [2023-08-24 06:31:51,782 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:31:51,792 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 101 transitions, 207 flow [2023-08-24 06:31:51,794 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 101 transitions, 207 flow [2023-08-24 06:31:51,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 101 transitions, 207 flow [2023-08-24 06:31:51,824 INFO L124 PetriNetUnfolderBase]: 14/133 cut-off events. [2023-08-24 06:31:51,824 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 06:31:51,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 133 events. 14/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 291 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 69. Up to 4 conditions per place. [2023-08-24 06:31:51,826 INFO L119 LiptonReduction]: Number of co-enabled transitions 2432 [2023-08-24 06:31:54,195 INFO L134 LiptonReduction]: Checked pairs total: 4475 [2023-08-24 06:31:54,195 INFO L136 LiptonReduction]: Total number of compositions: 85 [2023-08-24 06:31:54,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:31:54,208 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:31:54,208 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:31:54,211 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:31:54,211 INFO L124 PetriNetUnfolderBase]: 2/19 cut-off events. [2023-08-24 06:31:54,211 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 06:31:54,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:31:54,212 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-24 06:31:54,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:31:54,215 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:31:54,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1284239215, now seen corresponding path program 1 times [2023-08-24 06:31:54,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:31:54,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052467857] [2023-08-24 06:31:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:31:54,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:31:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:31:54,305 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:31:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:31:54,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:31:54,333 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:31:54,334 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:31:54,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 06:31:54,335 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:31:54,337 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:31:54,337 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:31:54,337 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-24 06:31:54,349 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:31:54,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 134 transitions, 280 flow [2023-08-24 06:31:54,370 INFO L124 PetriNetUnfolderBase]: 24/203 cut-off events. [2023-08-24 06:31:54,370 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 06:31:54,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 203 events. 24/203 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 566 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 134. Up to 6 conditions per place. [2023-08-24 06:31:54,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 134 transitions, 280 flow [2023-08-24 06:31:54,373 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 134 transitions, 280 flow [2023-08-24 06:31:54,373 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:31:54,373 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 134 transitions, 280 flow [2023-08-24 06:31:54,374 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 134 transitions, 280 flow [2023-08-24 06:31:54,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 134 transitions, 280 flow [2023-08-24 06:31:54,390 INFO L124 PetriNetUnfolderBase]: 24/203 cut-off events. [2023-08-24 06:31:54,390 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 06:31:54,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 203 events. 24/203 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 566 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 134. Up to 6 conditions per place. [2023-08-24 06:31:54,395 INFO L119 LiptonReduction]: Number of co-enabled transitions 6976 [2023-08-24 06:31:56,641 INFO L134 LiptonReduction]: Checked pairs total: 13909 [2023-08-24 06:31:56,642 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-08-24 06:31:56,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:31:56,644 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:31:56,644 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:31:56,648 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:31:56,648 INFO L124 PetriNetUnfolderBase]: 12/53 cut-off events. [2023-08-24 06:31:56,648 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 06:31:56,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:31:56,648 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-24 06:31:56,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:31:56,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:31:56,649 INFO L85 PathProgramCache]: Analyzing trace with hash 391367796, now seen corresponding path program 1 times [2023-08-24 06:31:56,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:31:56,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68828614] [2023-08-24 06:31:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:31:56,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:31:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:31:56,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:31:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:31:56,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:31:56,705 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:31:56,705 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:31:56,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 06:31:56,705 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:31:56,706 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:31:56,706 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:31:56,706 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-24 06:31:56,724 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:31:56,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 167 transitions, 355 flow [2023-08-24 06:31:56,748 INFO L124 PetriNetUnfolderBase]: 34/273 cut-off events. [2023-08-24 06:31:56,748 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 06:31:56,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 273 events. 34/273 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 825 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 207. Up to 8 conditions per place. [2023-08-24 06:31:56,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 167 transitions, 355 flow [2023-08-24 06:31:56,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 167 transitions, 355 flow [2023-08-24 06:31:56,752 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:31:56,752 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 167 transitions, 355 flow [2023-08-24 06:31:56,752 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 167 transitions, 355 flow [2023-08-24 06:31:56,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 167 transitions, 355 flow [2023-08-24 06:31:56,768 INFO L124 PetriNetUnfolderBase]: 34/273 cut-off events. [2023-08-24 06:31:56,768 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 06:31:56,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 273 events. 34/273 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 825 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 207. Up to 8 conditions per place. [2023-08-24 06:31:56,775 INFO L119 LiptonReduction]: Number of co-enabled transitions 13632 [2023-08-24 06:31:58,979 INFO L134 LiptonReduction]: Checked pairs total: 29300 [2023-08-24 06:31:58,979 INFO L136 LiptonReduction]: Total number of compositions: 122 [2023-08-24 06:31:58,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:31:58,981 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:31:58,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:31:58,986 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:31:58,986 INFO L124 PetriNetUnfolderBase]: 18/78 cut-off events. [2023-08-24 06:31:58,986 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 06:31:58,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:31:58,986 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-24 06:31:58,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:31:58,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:31:58,987 INFO L85 PathProgramCache]: Analyzing trace with hash 738447463, now seen corresponding path program 1 times [2023-08-24 06:31:58,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:31:58,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57720700] [2023-08-24 06:31:58,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:31:58,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:31:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:31:59,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:31:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:31:59,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:31:59,046 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:31:59,047 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:31:59,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 06:31:59,047 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:31:59,048 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:31:59,048 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:31:59,048 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-24 06:31:59,064 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:31:59,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 200 transitions, 432 flow [2023-08-24 06:31:59,092 INFO L124 PetriNetUnfolderBase]: 44/343 cut-off events. [2023-08-24 06:31:59,092 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 06:31:59,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 343 events. 44/343 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1096 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 281. Up to 10 conditions per place. [2023-08-24 06:31:59,095 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 200 transitions, 432 flow [2023-08-24 06:31:59,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 200 transitions, 432 flow [2023-08-24 06:31:59,097 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:31:59,097 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 200 transitions, 432 flow [2023-08-24 06:31:59,098 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 200 transitions, 432 flow [2023-08-24 06:31:59,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 200 transitions, 432 flow [2023-08-24 06:31:59,120 INFO L124 PetriNetUnfolderBase]: 44/343 cut-off events. [2023-08-24 06:31:59,120 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 06:31:59,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 343 events. 44/343 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1096 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 281. Up to 10 conditions per place. [2023-08-24 06:31:59,131 INFO L119 LiptonReduction]: Number of co-enabled transitions 22400 [2023-08-24 06:32:01,506 INFO L134 LiptonReduction]: Checked pairs total: 51430 [2023-08-24 06:32:01,506 INFO L136 LiptonReduction]: Total number of compositions: 144 [2023-08-24 06:32:01,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:01,508 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:01,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:01,514 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:01,514 INFO L124 PetriNetUnfolderBase]: 28/111 cut-off events. [2023-08-24 06:32:01,514 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 06:32:01,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:01,514 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-08-24 06:32:01,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:01,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:01,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1768765408, now seen corresponding path program 1 times [2023-08-24 06:32:01,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:01,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725646879] [2023-08-24 06:32:01,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:01,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:01,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:01,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:01,572 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:01,572 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:01,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 06:32:01,572 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:01,573 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:01,573 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:01,573 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-24 06:32:01,589 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:01,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 233 transitions, 511 flow [2023-08-24 06:32:01,656 INFO L124 PetriNetUnfolderBase]: 54/413 cut-off events. [2023-08-24 06:32:01,657 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 06:32:01,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 413 events. 54/413 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1356 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 356. Up to 12 conditions per place. [2023-08-24 06:32:01,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 233 transitions, 511 flow [2023-08-24 06:32:01,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 233 transitions, 511 flow [2023-08-24 06:32:01,662 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:01,663 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 233 transitions, 511 flow [2023-08-24 06:32:01,663 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 233 transitions, 511 flow [2023-08-24 06:32:01,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 233 transitions, 511 flow [2023-08-24 06:32:01,709 INFO L124 PetriNetUnfolderBase]: 54/413 cut-off events. [2023-08-24 06:32:01,710 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 06:32:01,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 413 events. 54/413 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1356 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 356. Up to 12 conditions per place. [2023-08-24 06:32:01,721 INFO L119 LiptonReduction]: Number of co-enabled transitions 33280 [2023-08-24 06:32:04,296 INFO L134 LiptonReduction]: Checked pairs total: 83530 [2023-08-24 06:32:04,296 INFO L136 LiptonReduction]: Total number of compositions: 165 [2023-08-24 06:32:04,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:04,298 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:04,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:04,306 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:04,306 INFO L124 PetriNetUnfolderBase]: 36/139 cut-off events. [2023-08-24 06:32:04,306 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 06:32:04,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:04,306 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:32:04,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:04,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:04,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1792454768, now seen corresponding path program 1 times [2023-08-24 06:32:04,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:04,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344798082] [2023-08-24 06:32:04,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:04,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:04,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:04,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:04,344 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:04,345 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:04,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 06:32:04,345 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:04,345 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:04,345 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:04,345 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-24 06:32:04,358 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:04,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 266 transitions, 592 flow [2023-08-24 06:32:04,403 INFO L124 PetriNetUnfolderBase]: 64/483 cut-off events. [2023-08-24 06:32:04,403 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 06:32:04,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 483 events. 64/483 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1632 event pairs, 0 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 432. Up to 14 conditions per place. [2023-08-24 06:32:04,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 239 places, 266 transitions, 592 flow [2023-08-24 06:32:04,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 266 transitions, 592 flow [2023-08-24 06:32:04,410 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:04,410 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 266 transitions, 592 flow [2023-08-24 06:32:04,413 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 266 transitions, 592 flow [2023-08-24 06:32:04,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 266 transitions, 592 flow [2023-08-24 06:32:04,453 INFO L124 PetriNetUnfolderBase]: 64/483 cut-off events. [2023-08-24 06:32:04,454 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 06:32:04,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 483 events. 64/483 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1632 event pairs, 0 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 432. Up to 14 conditions per place. [2023-08-24 06:32:04,468 INFO L119 LiptonReduction]: Number of co-enabled transitions 46272 [2023-08-24 06:32:07,056 INFO L134 LiptonReduction]: Checked pairs total: 105461 [2023-08-24 06:32:07,056 INFO L136 LiptonReduction]: Total number of compositions: 184 [2023-08-24 06:32:07,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:07,058 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:07,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:07,073 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:07,074 INFO L124 PetriNetUnfolderBase]: 44/168 cut-off events. [2023-08-24 06:32:07,074 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 06:32:07,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:07,074 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:32:07,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:07,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:07,075 INFO L85 PathProgramCache]: Analyzing trace with hash -861997741, now seen corresponding path program 1 times [2023-08-24 06:32:07,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:07,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845467839] [2023-08-24 06:32:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:07,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:07,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:07,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:07,151 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:07,151 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:07,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 06:32:07,151 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:07,152 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:07,152 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:07,152 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-24 06:32:07,172 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:07,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 299 transitions, 675 flow [2023-08-24 06:32:07,234 INFO L124 PetriNetUnfolderBase]: 74/553 cut-off events. [2023-08-24 06:32:07,237 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 06:32:07,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 553 events. 74/553 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1889 event pairs, 0 based on Foata normal form. 0/463 useless extension candidates. Maximal degree in co-relation 509. Up to 16 conditions per place. [2023-08-24 06:32:07,244 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 299 transitions, 675 flow [2023-08-24 06:32:07,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 268 places, 299 transitions, 675 flow [2023-08-24 06:32:07,248 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:07,249 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 268 places, 299 transitions, 675 flow [2023-08-24 06:32:07,249 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 268 places, 299 transitions, 675 flow [2023-08-24 06:32:07,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 299 transitions, 675 flow [2023-08-24 06:32:07,303 INFO L124 PetriNetUnfolderBase]: 74/553 cut-off events. [2023-08-24 06:32:07,303 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 06:32:07,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 553 events. 74/553 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1889 event pairs, 0 based on Foata normal form. 0/463 useless extension candidates. Maximal degree in co-relation 509. Up to 16 conditions per place. [2023-08-24 06:32:07,326 INFO L119 LiptonReduction]: Number of co-enabled transitions 61376 [2023-08-24 06:32:10,097 INFO L134 LiptonReduction]: Checked pairs total: 154198 [2023-08-24 06:32:10,098 INFO L136 LiptonReduction]: Total number of compositions: 203 [2023-08-24 06:32:10,099 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:10,099 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:10,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:10,113 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:10,114 INFO L124 PetriNetUnfolderBase]: 50/194 cut-off events. [2023-08-24 06:32:10,114 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 06:32:10,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:10,114 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:32:10,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:10,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash 675488374, now seen corresponding path program 1 times [2023-08-24 06:32:10,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:10,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444997063] [2023-08-24 06:32:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:10,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:10,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:10,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:10,144 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:10,145 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:10,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 06:32:10,145 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:10,145 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:10,145 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:10,145 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-24 06:32:10,161 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:10,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 297 places, 332 transitions, 760 flow [2023-08-24 06:32:10,241 INFO L124 PetriNetUnfolderBase]: 84/623 cut-off events. [2023-08-24 06:32:10,241 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 06:32:10,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 623 events. 84/623 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2176 event pairs, 0 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 587. Up to 18 conditions per place. [2023-08-24 06:32:10,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 297 places, 332 transitions, 760 flow [2023-08-24 06:32:10,255 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 297 places, 332 transitions, 760 flow [2023-08-24 06:32:10,255 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:10,255 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 297 places, 332 transitions, 760 flow [2023-08-24 06:32:10,255 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 297 places, 332 transitions, 760 flow [2023-08-24 06:32:10,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 297 places, 332 transitions, 760 flow [2023-08-24 06:32:10,347 INFO L124 PetriNetUnfolderBase]: 84/623 cut-off events. [2023-08-24 06:32:10,348 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 06:32:10,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 623 events. 84/623 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2176 event pairs, 0 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 587. Up to 18 conditions per place. [2023-08-24 06:32:10,372 INFO L119 LiptonReduction]: Number of co-enabled transitions 78592 [2023-08-24 06:32:13,323 INFO L134 LiptonReduction]: Checked pairs total: 181518 [2023-08-24 06:32:13,323 INFO L136 LiptonReduction]: Total number of compositions: 224 [2023-08-24 06:32:13,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:13,326 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:13,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:13,341 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:13,341 INFO L124 PetriNetUnfolderBase]: 58/224 cut-off events. [2023-08-24 06:32:13,341 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 06:32:13,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:13,341 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:32:13,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:13,341 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:13,341 INFO L85 PathProgramCache]: Analyzing trace with hash -119941021, now seen corresponding path program 1 times [2023-08-24 06:32:13,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:13,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720604277] [2023-08-24 06:32:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:13,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:13,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:13,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:13,395 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:13,396 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:13,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 06:32:13,396 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:13,396 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:13,396 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:13,396 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-24 06:32:13,415 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:13,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 326 places, 365 transitions, 847 flow [2023-08-24 06:32:13,510 INFO L124 PetriNetUnfolderBase]: 94/693 cut-off events. [2023-08-24 06:32:13,510 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 06:32:13,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 693 events. 94/693 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2430 event pairs, 0 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 666. Up to 20 conditions per place. [2023-08-24 06:32:13,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 326 places, 365 transitions, 847 flow [2023-08-24 06:32:13,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 326 places, 365 transitions, 847 flow [2023-08-24 06:32:13,529 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:13,529 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 326 places, 365 transitions, 847 flow [2023-08-24 06:32:13,529 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 326 places, 365 transitions, 847 flow [2023-08-24 06:32:13,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 326 places, 365 transitions, 847 flow [2023-08-24 06:32:13,613 INFO L124 PetriNetUnfolderBase]: 94/693 cut-off events. [2023-08-24 06:32:13,613 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 06:32:13,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 693 events. 94/693 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2430 event pairs, 0 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 666. Up to 20 conditions per place. [2023-08-24 06:32:13,654 INFO L119 LiptonReduction]: Number of co-enabled transitions 97920 [2023-08-24 06:32:16,537 INFO L134 LiptonReduction]: Checked pairs total: 226486 [2023-08-24 06:32:16,537 INFO L136 LiptonReduction]: Total number of compositions: 241 [2023-08-24 06:32:16,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:16,539 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:16,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:16,557 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:16,557 INFO L124 PetriNetUnfolderBase]: 66/252 cut-off events. [2023-08-24 06:32:16,557 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 06:32:16,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:16,557 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:32:16,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:16,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:16,558 INFO L85 PathProgramCache]: Analyzing trace with hash -183646957, now seen corresponding path program 1 times [2023-08-24 06:32:16,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:16,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006144313] [2023-08-24 06:32:16,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:16,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:16,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:16,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:16,589 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:16,589 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:16,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 06:32:16,590 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:16,590 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:16,590 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:16,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-24 06:32:16,638 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:16,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 355 places, 398 transitions, 936 flow [2023-08-24 06:32:16,769 INFO L124 PetriNetUnfolderBase]: 104/763 cut-off events. [2023-08-24 06:32:16,769 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 06:32:16,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 849 conditions, 763 events. 104/763 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2716 event pairs, 0 based on Foata normal form. 0/637 useless extension candidates. Maximal degree in co-relation 746. Up to 22 conditions per place. [2023-08-24 06:32:16,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 355 places, 398 transitions, 936 flow [2023-08-24 06:32:16,790 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 355 places, 398 transitions, 936 flow [2023-08-24 06:32:16,790 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:16,790 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 355 places, 398 transitions, 936 flow [2023-08-24 06:32:16,790 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 355 places, 398 transitions, 936 flow [2023-08-24 06:32:16,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 355 places, 398 transitions, 936 flow [2023-08-24 06:32:16,890 INFO L124 PetriNetUnfolderBase]: 104/763 cut-off events. [2023-08-24 06:32:16,890 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 06:32:16,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 849 conditions, 763 events. 104/763 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2716 event pairs, 0 based on Foata normal form. 0/637 useless extension candidates. Maximal degree in co-relation 746. Up to 22 conditions per place. [2023-08-24 06:32:16,936 INFO L119 LiptonReduction]: Number of co-enabled transitions 119360 [2023-08-24 06:32:20,186 INFO L134 LiptonReduction]: Checked pairs total: 311263 [2023-08-24 06:32:20,186 INFO L136 LiptonReduction]: Total number of compositions: 259 [2023-08-24 06:32:20,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:20,188 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:20,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:20,208 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:20,208 INFO L124 PetriNetUnfolderBase]: 74/281 cut-off events. [2023-08-24 06:32:20,208 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 06:32:20,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:20,208 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:32:20,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:20,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:20,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1429446710, now seen corresponding path program 1 times [2023-08-24 06:32:20,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:20,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979934998] [2023-08-24 06:32:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:20,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:20,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:20,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:20,239 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:20,239 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:20,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 06:32:20,239 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:20,239 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:20,239 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:20,239 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-24 06:32:20,261 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:20,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 384 places, 431 transitions, 1027 flow [2023-08-24 06:32:20,379 INFO L124 PetriNetUnfolderBase]: 114/833 cut-off events. [2023-08-24 06:32:20,379 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 06:32:20,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 833 events. 114/833 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2958 event pairs, 0 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 827. Up to 24 conditions per place. [2023-08-24 06:32:20,397 INFO L82 GeneralOperation]: Start removeDead. Operand has 384 places, 431 transitions, 1027 flow [2023-08-24 06:32:20,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 384 places, 431 transitions, 1027 flow [2023-08-24 06:32:20,404 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:20,404 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 384 places, 431 transitions, 1027 flow [2023-08-24 06:32:20,404 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 384 places, 431 transitions, 1027 flow [2023-08-24 06:32:20,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 384 places, 431 transitions, 1027 flow [2023-08-24 06:32:20,539 INFO L124 PetriNetUnfolderBase]: 114/833 cut-off events. [2023-08-24 06:32:20,539 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 06:32:20,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 833 events. 114/833 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2958 event pairs, 0 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 827. Up to 24 conditions per place. [2023-08-24 06:32:20,587 INFO L119 LiptonReduction]: Number of co-enabled transitions 142912 [2023-08-24 06:32:23,827 INFO L134 LiptonReduction]: Checked pairs total: 328486 [2023-08-24 06:32:23,827 INFO L136 LiptonReduction]: Total number of compositions: 277 [2023-08-24 06:32:23,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:23,828 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:23,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:23,854 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:23,854 INFO L124 PetriNetUnfolderBase]: 82/310 cut-off events. [2023-08-24 06:32:23,854 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 06:32:23,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:23,854 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:32:23,854 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:23,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:23,855 INFO L85 PathProgramCache]: Analyzing trace with hash 335852943, now seen corresponding path program 1 times [2023-08-24 06:32:23,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:23,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699858028] [2023-08-24 06:32:23,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:23,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:23,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:23,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:23,887 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:23,887 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:23,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 06:32:23,888 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:23,889 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:23,889 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:23,889 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-24 06:32:23,908 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:23,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 413 places, 464 transitions, 1120 flow [2023-08-24 06:32:24,047 INFO L124 PetriNetUnfolderBase]: 124/903 cut-off events. [2023-08-24 06:32:24,047 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 06:32:24,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 903 events. 124/903 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3238 event pairs, 0 based on Foata normal form. 0/753 useless extension candidates. Maximal degree in co-relation 909. Up to 26 conditions per place. [2023-08-24 06:32:24,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 413 places, 464 transitions, 1120 flow [2023-08-24 06:32:24,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 413 places, 464 transitions, 1120 flow [2023-08-24 06:32:24,079 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:24,079 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 413 places, 464 transitions, 1120 flow [2023-08-24 06:32:24,079 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 413 places, 464 transitions, 1120 flow [2023-08-24 06:32:24,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 413 places, 464 transitions, 1120 flow [2023-08-24 06:32:24,216 INFO L124 PetriNetUnfolderBase]: 124/903 cut-off events. [2023-08-24 06:32:24,216 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 06:32:24,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 903 events. 124/903 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3238 event pairs, 0 based on Foata normal form. 0/753 useless extension candidates. Maximal degree in co-relation 909. Up to 26 conditions per place. [2023-08-24 06:32:24,323 INFO L119 LiptonReduction]: Number of co-enabled transitions 168576 [2023-08-24 06:32:27,796 INFO L134 LiptonReduction]: Checked pairs total: 408566 [2023-08-24 06:32:27,797 INFO L136 LiptonReduction]: Total number of compositions: 302 [2023-08-24 06:32:27,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:27,798 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:27,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:27,828 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:27,828 INFO L124 PetriNetUnfolderBase]: 90/339 cut-off events. [2023-08-24 06:32:27,828 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 06:32:27,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:27,829 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 06:32:27,829 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:27,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:27,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1189507907, now seen corresponding path program 1 times [2023-08-24 06:32:27,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:27,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450579663] [2023-08-24 06:32:27,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:27,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:27,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:27,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:27,868 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:27,868 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:27,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 06:32:27,868 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:27,870 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:27,870 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:27,870 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-24 06:32:27,894 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:27,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 497 transitions, 1215 flow [2023-08-24 06:32:28,045 INFO L124 PetriNetUnfolderBase]: 134/973 cut-off events. [2023-08-24 06:32:28,045 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 06:32:28,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 973 events. 134/973 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3488 event pairs, 0 based on Foata normal form. 0/811 useless extension candidates. Maximal degree in co-relation 993. Up to 28 conditions per place. [2023-08-24 06:32:28,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 442 places, 497 transitions, 1215 flow [2023-08-24 06:32:28,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 497 transitions, 1215 flow [2023-08-24 06:32:28,079 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:28,079 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 442 places, 497 transitions, 1215 flow [2023-08-24 06:32:28,079 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 442 places, 497 transitions, 1215 flow [2023-08-24 06:32:28,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 497 transitions, 1215 flow [2023-08-24 06:32:28,225 INFO L124 PetriNetUnfolderBase]: 134/973 cut-off events. [2023-08-24 06:32:28,226 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 06:32:28,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 973 events. 134/973 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3488 event pairs, 0 based on Foata normal form. 0/811 useless extension candidates. Maximal degree in co-relation 993. Up to 28 conditions per place. [2023-08-24 06:32:28,304 INFO L119 LiptonReduction]: Number of co-enabled transitions 196352 [2023-08-24 06:32:31,734 INFO L134 LiptonReduction]: Checked pairs total: 476113 [2023-08-24 06:32:31,734 INFO L136 LiptonReduction]: Total number of compositions: 319 [2023-08-24 06:32:31,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:31,736 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:31,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:31,768 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:31,769 INFO L124 PetriNetUnfolderBase]: 100/371 cut-off events. [2023-08-24 06:32:31,769 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 06:32:31,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:31,769 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 06:32:31,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:31,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:31,769 INFO L85 PathProgramCache]: Analyzing trace with hash 602710997, now seen corresponding path program 1 times [2023-08-24 06:32:31,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:31,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781262668] [2023-08-24 06:32:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:31,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:31,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:31,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:31,805 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:31,805 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:31,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-24 06:32:31,805 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:31,805 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:31,805 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:31,805 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-24 06:32:31,830 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:31,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 471 places, 530 transitions, 1312 flow [2023-08-24 06:32:32,023 INFO L124 PetriNetUnfolderBase]: 144/1043 cut-off events. [2023-08-24 06:32:32,023 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 06:32:32,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 1043 events. 144/1043 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3756 event pairs, 0 based on Foata normal form. 0/869 useless extension candidates. Maximal degree in co-relation 1079. Up to 30 conditions per place. [2023-08-24 06:32:32,047 INFO L82 GeneralOperation]: Start removeDead. Operand has 471 places, 530 transitions, 1312 flow [2023-08-24 06:32:32,055 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 471 places, 530 transitions, 1312 flow [2023-08-24 06:32:32,055 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:32,055 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 471 places, 530 transitions, 1312 flow [2023-08-24 06:32:32,055 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 471 places, 530 transitions, 1312 flow [2023-08-24 06:32:32,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 471 places, 530 transitions, 1312 flow [2023-08-24 06:32:32,224 INFO L124 PetriNetUnfolderBase]: 144/1043 cut-off events. [2023-08-24 06:32:32,224 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 06:32:32,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 1043 events. 144/1043 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3756 event pairs, 0 based on Foata normal form. 0/869 useless extension candidates. Maximal degree in co-relation 1079. Up to 30 conditions per place. [2023-08-24 06:32:32,315 INFO L119 LiptonReduction]: Number of co-enabled transitions 226240 [2023-08-24 06:32:36,107 INFO L134 LiptonReduction]: Checked pairs total: 553617 [2023-08-24 06:32:36,107 INFO L136 LiptonReduction]: Total number of compositions: 339 [2023-08-24 06:32:36,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:36,108 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:36,108 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:36,144 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:36,144 INFO L124 PetriNetUnfolderBase]: 106/397 cut-off events. [2023-08-24 06:32:36,144 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 06:32:36,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:36,144 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 06:32:36,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:36,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:36,145 INFO L85 PathProgramCache]: Analyzing trace with hash -928265425, now seen corresponding path program 1 times [2023-08-24 06:32:36,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:36,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763508440] [2023-08-24 06:32:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:36,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:36,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:36,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:36,196 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:36,196 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:36,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-24 06:32:36,196 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:36,197 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:36,197 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:36,197 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-24 06:32:36,219 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:36,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 500 places, 563 transitions, 1411 flow [2023-08-24 06:32:36,457 INFO L124 PetriNetUnfolderBase]: 154/1113 cut-off events. [2023-08-24 06:32:36,458 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 06:32:36,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 1113 events. 154/1113 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4013 event pairs, 0 based on Foata normal form. 0/927 useless extension candidates. Maximal degree in co-relation 1166. Up to 32 conditions per place. [2023-08-24 06:32:36,476 INFO L82 GeneralOperation]: Start removeDead. Operand has 500 places, 563 transitions, 1411 flow [2023-08-24 06:32:36,483 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 500 places, 563 transitions, 1411 flow [2023-08-24 06:32:36,483 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:36,484 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 500 places, 563 transitions, 1411 flow [2023-08-24 06:32:36,484 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 500 places, 563 transitions, 1411 flow [2023-08-24 06:32:36,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 500 places, 563 transitions, 1411 flow [2023-08-24 06:32:36,684 INFO L124 PetriNetUnfolderBase]: 154/1113 cut-off events. [2023-08-24 06:32:36,684 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 06:32:36,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 1113 events. 154/1113 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4013 event pairs, 0 based on Foata normal form. 0/927 useless extension candidates. Maximal degree in co-relation 1166. Up to 32 conditions per place. [2023-08-24 06:32:36,793 INFO L119 LiptonReduction]: Number of co-enabled transitions 258240 [2023-08-24 06:32:40,681 INFO L134 LiptonReduction]: Checked pairs total: 634361 [2023-08-24 06:32:40,682 INFO L136 LiptonReduction]: Total number of compositions: 360 [2023-08-24 06:32:40,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:40,683 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:40,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:40,723 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:40,724 INFO L124 PetriNetUnfolderBase]: 114/426 cut-off events. [2023-08-24 06:32:40,724 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 06:32:40,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:40,724 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 06:32:40,724 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:40,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:40,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1688359983, now seen corresponding path program 1 times [2023-08-24 06:32:40,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:40,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466338225] [2023-08-24 06:32:40,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:40,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:40,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:40,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:40,767 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:40,767 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:40,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-24 06:32:40,767 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:40,767 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:40,767 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:40,767 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-24 06:32:40,792 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:40,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 529 places, 596 transitions, 1512 flow [2023-08-24 06:32:41,035 INFO L124 PetriNetUnfolderBase]: 164/1183 cut-off events. [2023-08-24 06:32:41,036 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 06:32:41,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 1183 events. 164/1183 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4277 event pairs, 0 based on Foata normal form. 0/985 useless extension candidates. Maximal degree in co-relation 1254. Up to 34 conditions per place. [2023-08-24 06:32:41,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 529 places, 596 transitions, 1512 flow [2023-08-24 06:32:41,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 529 places, 596 transitions, 1512 flow [2023-08-24 06:32:41,088 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:41,089 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 529 places, 596 transitions, 1512 flow [2023-08-24 06:32:41,089 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 529 places, 596 transitions, 1512 flow [2023-08-24 06:32:41,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 529 places, 596 transitions, 1512 flow [2023-08-24 06:32:41,322 INFO L124 PetriNetUnfolderBase]: 164/1183 cut-off events. [2023-08-24 06:32:41,323 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 06:32:41,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 1183 events. 164/1183 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4277 event pairs, 0 based on Foata normal form. 0/985 useless extension candidates. Maximal degree in co-relation 1254. Up to 34 conditions per place. [2023-08-24 06:32:41,425 INFO L119 LiptonReduction]: Number of co-enabled transitions 292352 [2023-08-24 06:32:45,339 INFO L134 LiptonReduction]: Checked pairs total: 714223 [2023-08-24 06:32:45,339 INFO L136 LiptonReduction]: Total number of compositions: 381 [2023-08-24 06:32:45,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:45,344 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:45,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:45,389 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:45,389 INFO L124 PetriNetUnfolderBase]: 122/455 cut-off events. [2023-08-24 06:32:45,389 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 06:32:45,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:45,389 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 06:32:45,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:45,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:45,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1289448505, now seen corresponding path program 1 times [2023-08-24 06:32:45,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:45,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714916423] [2023-08-24 06:32:45,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:45,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:45,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:45,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:45,448 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:45,448 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:45,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-24 06:32:45,449 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:45,449 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:45,449 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:45,449 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-24 06:32:45,474 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:45,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 558 places, 629 transitions, 1615 flow [2023-08-24 06:32:45,729 INFO L124 PetriNetUnfolderBase]: 174/1253 cut-off events. [2023-08-24 06:32:45,729 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 06:32:45,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 1253 events. 174/1253 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4545 event pairs, 0 based on Foata normal form. 0/1043 useless extension candidates. Maximal degree in co-relation 1343. Up to 36 conditions per place. [2023-08-24 06:32:45,771 INFO L82 GeneralOperation]: Start removeDead. Operand has 558 places, 629 transitions, 1615 flow [2023-08-24 06:32:45,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 558 places, 629 transitions, 1615 flow [2023-08-24 06:32:45,785 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:45,785 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 558 places, 629 transitions, 1615 flow [2023-08-24 06:32:45,785 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 558 places, 629 transitions, 1615 flow [2023-08-24 06:32:45,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 558 places, 629 transitions, 1615 flow [2023-08-24 06:32:46,048 INFO L124 PetriNetUnfolderBase]: 174/1253 cut-off events. [2023-08-24 06:32:46,048 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 06:32:46,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 1253 events. 174/1253 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4545 event pairs, 0 based on Foata normal form. 0/1043 useless extension candidates. Maximal degree in co-relation 1343. Up to 36 conditions per place. [2023-08-24 06:32:46,159 INFO L119 LiptonReduction]: Number of co-enabled transitions 328576 [2023-08-24 06:32:50,235 INFO L134 LiptonReduction]: Checked pairs total: 803754 [2023-08-24 06:32:50,235 INFO L136 LiptonReduction]: Total number of compositions: 398 [2023-08-24 06:32:50,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:50,237 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:50,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:50,289 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:50,289 INFO L124 PetriNetUnfolderBase]: 130/484 cut-off events. [2023-08-24 06:32:50,289 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 06:32:50,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:50,289 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 06:32:50,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:50,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:50,289 INFO L85 PathProgramCache]: Analyzing trace with hash -424217612, now seen corresponding path program 1 times [2023-08-24 06:32:50,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:50,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636245503] [2023-08-24 06:32:50,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:50,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:50,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:50,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:50,331 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:50,331 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:50,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-24 06:32:50,331 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:50,331 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:50,331 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:50,331 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-24 06:32:50,362 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:50,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 587 places, 662 transitions, 1720 flow [2023-08-24 06:32:50,645 INFO L124 PetriNetUnfolderBase]: 184/1323 cut-off events. [2023-08-24 06:32:50,645 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 06:32:50,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 1323 events. 184/1323 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4819 event pairs, 0 based on Foata normal form. 0/1101 useless extension candidates. Maximal degree in co-relation 1433. Up to 38 conditions per place. [2023-08-24 06:32:50,693 INFO L82 GeneralOperation]: Start removeDead. Operand has 587 places, 662 transitions, 1720 flow [2023-08-24 06:32:50,709 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 587 places, 662 transitions, 1720 flow [2023-08-24 06:32:50,709 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:50,709 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 587 places, 662 transitions, 1720 flow [2023-08-24 06:32:50,709 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 587 places, 662 transitions, 1720 flow [2023-08-24 06:32:50,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 587 places, 662 transitions, 1720 flow [2023-08-24 06:32:51,016 INFO L124 PetriNetUnfolderBase]: 184/1323 cut-off events. [2023-08-24 06:32:51,017 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 06:32:51,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 1323 events. 184/1323 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4819 event pairs, 0 based on Foata normal form. 0/1101 useless extension candidates. Maximal degree in co-relation 1433. Up to 38 conditions per place. [2023-08-24 06:32:51,133 INFO L119 LiptonReduction]: Number of co-enabled transitions 366912 [2023-08-24 06:32:55,485 INFO L134 LiptonReduction]: Checked pairs total: 899021 [2023-08-24 06:32:55,485 INFO L136 LiptonReduction]: Total number of compositions: 422 [2023-08-24 06:32:55,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:32:55,489 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:32:55,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:32:55,544 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:32:55,544 INFO L124 PetriNetUnfolderBase]: 138/513 cut-off events. [2023-08-24 06:32:55,544 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 06:32:55,545 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:32:55,545 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 06:32:55,545 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:32:55,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:32:55,545 INFO L85 PathProgramCache]: Analyzing trace with hash -324178359, now seen corresponding path program 1 times [2023-08-24 06:32:55,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:32:55,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791146583] [2023-08-24 06:32:55,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:32:55,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:32:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:55,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:32:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:32:55,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:32:55,590 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:32:55,590 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:32:55,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-24 06:32:55,590 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:32:55,590 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:32:55,590 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:32:55,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-24 06:32:55,618 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:32:55,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 616 places, 695 transitions, 1827 flow [2023-08-24 06:32:55,932 INFO L124 PetriNetUnfolderBase]: 194/1393 cut-off events. [2023-08-24 06:32:55,932 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 06:32:55,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1641 conditions, 1393 events. 194/1393 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5097 event pairs, 0 based on Foata normal form. 0/1159 useless extension candidates. Maximal degree in co-relation 1524. Up to 40 conditions per place. [2023-08-24 06:32:55,985 INFO L82 GeneralOperation]: Start removeDead. Operand has 616 places, 695 transitions, 1827 flow [2023-08-24 06:32:56,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 616 places, 695 transitions, 1827 flow [2023-08-24 06:32:56,002 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:32:56,002 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 616 places, 695 transitions, 1827 flow [2023-08-24 06:32:56,003 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 616 places, 695 transitions, 1827 flow [2023-08-24 06:32:56,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 616 places, 695 transitions, 1827 flow [2023-08-24 06:32:56,350 INFO L124 PetriNetUnfolderBase]: 194/1393 cut-off events. [2023-08-24 06:32:56,350 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 06:32:56,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1641 conditions, 1393 events. 194/1393 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5097 event pairs, 0 based on Foata normal form. 0/1159 useless extension candidates. Maximal degree in co-relation 1524. Up to 40 conditions per place. [2023-08-24 06:32:56,475 INFO L119 LiptonReduction]: Number of co-enabled transitions 407360 [2023-08-24 06:33:00,956 INFO L134 LiptonReduction]: Checked pairs total: 1006082 [2023-08-24 06:33:00,957 INFO L136 LiptonReduction]: Total number of compositions: 439 [2023-08-24 06:33:00,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:33:00,958 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:33:00,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:33:01,019 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:33:01,019 INFO L124 PetriNetUnfolderBase]: 146/542 cut-off events. [2023-08-24 06:33:01,019 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 06:33:01,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:33:01,019 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 06:33:01,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:33:01,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:33:01,020 INFO L85 PathProgramCache]: Analyzing trace with hash 679516629, now seen corresponding path program 1 times [2023-08-24 06:33:01,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:33:01,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657843371] [2023-08-24 06:33:01,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:33:01,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:33:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:01,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:33:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:01,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:33:01,070 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:33:01,070 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:33:01,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-24 06:33:01,070 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:33:01,071 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:33:01,071 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:33:01,071 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-24 06:33:01,102 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:33:01,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 645 places, 728 transitions, 1936 flow [2023-08-24 06:33:01,452 INFO L124 PetriNetUnfolderBase]: 204/1463 cut-off events. [2023-08-24 06:33:01,452 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 06:33:01,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 1463 events. 204/1463 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5327 event pairs, 0 based on Foata normal form. 0/1217 useless extension candidates. Maximal degree in co-relation 1616. Up to 42 conditions per place. [2023-08-24 06:33:01,512 INFO L82 GeneralOperation]: Start removeDead. Operand has 645 places, 728 transitions, 1936 flow [2023-08-24 06:33:01,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 645 places, 728 transitions, 1936 flow [2023-08-24 06:33:01,532 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:33:01,532 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 645 places, 728 transitions, 1936 flow [2023-08-24 06:33:01,532 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 645 places, 728 transitions, 1936 flow [2023-08-24 06:33:01,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 645 places, 728 transitions, 1936 flow [2023-08-24 06:33:01,886 INFO L124 PetriNetUnfolderBase]: 204/1463 cut-off events. [2023-08-24 06:33:01,886 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 06:33:01,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 1463 events. 204/1463 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5327 event pairs, 0 based on Foata normal form. 0/1217 useless extension candidates. Maximal degree in co-relation 1616. Up to 42 conditions per place. [2023-08-24 06:33:02,046 INFO L119 LiptonReduction]: Number of co-enabled transitions 449920 [2023-08-24 06:33:06,771 INFO L134 LiptonReduction]: Checked pairs total: 1103578 [2023-08-24 06:33:06,772 INFO L136 LiptonReduction]: Total number of compositions: 453 [2023-08-24 06:33:06,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:33:06,773 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:33:06,773 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:33:06,843 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:33:06,843 INFO L124 PetriNetUnfolderBase]: 154/571 cut-off events. [2023-08-24 06:33:06,843 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 06:33:06,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:33:06,843 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 06:33:06,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:33:06,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:33:06,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1845615143, now seen corresponding path program 1 times [2023-08-24 06:33:06,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:33:06,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851473969] [2023-08-24 06:33:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:33:06,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:33:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:06,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:33:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:06,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:33:06,892 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:33:06,893 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:33:06,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-24 06:33:06,893 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:33:06,893 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:33:06,893 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:33:06,893 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-24 06:33:06,931 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:33:06,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 674 places, 761 transitions, 2047 flow [2023-08-24 06:33:07,328 INFO L124 PetriNetUnfolderBase]: 214/1533 cut-off events. [2023-08-24 06:33:07,328 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 06:33:07,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1828 conditions, 1533 events. 214/1533 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5620 event pairs, 0 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 1709. Up to 44 conditions per place. [2023-08-24 06:33:07,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 674 places, 761 transitions, 2047 flow [2023-08-24 06:33:07,418 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 674 places, 761 transitions, 2047 flow [2023-08-24 06:33:07,418 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:33:07,419 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 674 places, 761 transitions, 2047 flow [2023-08-24 06:33:07,419 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 674 places, 761 transitions, 2047 flow [2023-08-24 06:33:07,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 674 places, 761 transitions, 2047 flow [2023-08-24 06:33:07,810 INFO L124 PetriNetUnfolderBase]: 214/1533 cut-off events. [2023-08-24 06:33:07,810 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 06:33:07,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1828 conditions, 1533 events. 214/1533 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5620 event pairs, 0 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 1709. Up to 44 conditions per place. [2023-08-24 06:33:07,989 INFO L119 LiptonReduction]: Number of co-enabled transitions 494592 [2023-08-24 06:33:13,044 INFO L134 LiptonReduction]: Checked pairs total: 1363915 [2023-08-24 06:33:13,044 INFO L136 LiptonReduction]: Total number of compositions: 478 [2023-08-24 06:33:13,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:33:13,045 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:33:13,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:33:13,122 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:33:13,122 INFO L124 PetriNetUnfolderBase]: 162/600 cut-off events. [2023-08-24 06:33:13,122 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 06:33:13,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:33:13,122 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 06:33:13,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:33:13,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:33:13,123 INFO L85 PathProgramCache]: Analyzing trace with hash 974816774, now seen corresponding path program 1 times [2023-08-24 06:33:13,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:33:13,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436186878] [2023-08-24 06:33:13,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:33:13,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:33:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:13,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:33:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:13,171 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:33:13,172 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:33:13,172 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:33:13,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-24 06:33:13,172 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:33:13,172 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:33:13,172 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:33:13,172 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-08-24 06:33:13,210 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:33:13,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 703 places, 794 transitions, 2160 flow [2023-08-24 06:33:13,628 INFO L124 PetriNetUnfolderBase]: 224/1603 cut-off events. [2023-08-24 06:33:13,629 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 06:33:13,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 1603 events. 224/1603 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5878 event pairs, 0 based on Foata normal form. 0/1333 useless extension candidates. Maximal degree in co-relation 1803. Up to 46 conditions per place. [2023-08-24 06:33:13,702 INFO L82 GeneralOperation]: Start removeDead. Operand has 703 places, 794 transitions, 2160 flow [2023-08-24 06:33:13,725 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 703 places, 794 transitions, 2160 flow [2023-08-24 06:33:13,725 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:33:13,726 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 703 places, 794 transitions, 2160 flow [2023-08-24 06:33:13,726 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 703 places, 794 transitions, 2160 flow [2023-08-24 06:33:13,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 703 places, 794 transitions, 2160 flow [2023-08-24 06:33:14,148 INFO L124 PetriNetUnfolderBase]: 224/1603 cut-off events. [2023-08-24 06:33:14,149 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 06:33:14,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 1603 events. 224/1603 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5878 event pairs, 0 based on Foata normal form. 0/1333 useless extension candidates. Maximal degree in co-relation 1803. Up to 46 conditions per place. [2023-08-24 06:33:14,354 INFO L119 LiptonReduction]: Number of co-enabled transitions 541376 [2023-08-24 06:33:19,585 INFO L134 LiptonReduction]: Checked pairs total: 1493778 [2023-08-24 06:33:19,585 INFO L136 LiptonReduction]: Total number of compositions: 496 [2023-08-24 06:33:19,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:33:19,588 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:33:19,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:33:19,671 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:33:19,672 INFO L124 PetriNetUnfolderBase]: 170/629 cut-off events. [2023-08-24 06:33:19,672 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 06:33:19,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:33:19,672 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 06:33:19,672 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:33:19,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:33:19,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1266417531, now seen corresponding path program 1 times [2023-08-24 06:33:19,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:33:19,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241458830] [2023-08-24 06:33:19,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:33:19,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:33:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:19,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:33:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:19,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:33:19,730 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:33:19,730 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:33:19,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-24 06:33:19,730 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:33:19,730 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:33:19,730 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:33:19,730 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-08-24 06:33:19,773 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:33:19,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 732 places, 827 transitions, 2275 flow [2023-08-24 06:33:20,302 INFO L124 PetriNetUnfolderBase]: 234/1673 cut-off events. [2023-08-24 06:33:20,303 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 06:33:20,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 1673 events. 234/1673 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6157 event pairs, 0 based on Foata normal form. 0/1391 useless extension candidates. Maximal degree in co-relation 1898. Up to 48 conditions per place. [2023-08-24 06:33:20,348 INFO L82 GeneralOperation]: Start removeDead. Operand has 732 places, 827 transitions, 2275 flow [2023-08-24 06:33:20,362 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 732 places, 827 transitions, 2275 flow [2023-08-24 06:33:20,363 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:33:20,363 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 732 places, 827 transitions, 2275 flow [2023-08-24 06:33:20,363 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 732 places, 827 transitions, 2275 flow [2023-08-24 06:33:20,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 732 places, 827 transitions, 2275 flow [2023-08-24 06:33:20,811 INFO L124 PetriNetUnfolderBase]: 234/1673 cut-off events. [2023-08-24 06:33:20,811 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 06:33:20,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 1673 events. 234/1673 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6157 event pairs, 0 based on Foata normal form. 0/1391 useless extension candidates. Maximal degree in co-relation 1898. Up to 48 conditions per place. [2023-08-24 06:33:21,075 INFO L119 LiptonReduction]: Number of co-enabled transitions 590272 [2023-08-24 06:33:26,314 INFO L134 LiptonReduction]: Checked pairs total: 1458520 [2023-08-24 06:33:26,314 INFO L136 LiptonReduction]: Total number of compositions: 513 [2023-08-24 06:33:26,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:33:26,316 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:33:26,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:33:26,407 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:33:26,407 INFO L124 PetriNetUnfolderBase]: 178/658 cut-off events. [2023-08-24 06:33:26,407 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 06:33:26,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:33:26,408 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 06:33:26,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:33:26,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:33:26,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1135423284, now seen corresponding path program 1 times [2023-08-24 06:33:26,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:33:26,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693860877] [2023-08-24 06:33:26,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:33:26,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:33:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:26,460 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:33:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:26,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:33:26,491 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:33:26,492 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:33:26,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-24 06:33:26,492 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:33:26,492 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:33:26,492 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:33:26,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-08-24 06:33:26,538 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:33:26,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 761 places, 860 transitions, 2392 flow [2023-08-24 06:33:27,029 INFO L124 PetriNetUnfolderBase]: 244/1743 cut-off events. [2023-08-24 06:33:27,029 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 06:33:27,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2116 conditions, 1743 events. 244/1743 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6422 event pairs, 0 based on Foata normal form. 0/1449 useless extension candidates. Maximal degree in co-relation 1994. Up to 50 conditions per place. [2023-08-24 06:33:27,109 INFO L82 GeneralOperation]: Start removeDead. Operand has 761 places, 860 transitions, 2392 flow [2023-08-24 06:33:27,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 761 places, 860 transitions, 2392 flow [2023-08-24 06:33:27,134 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:33:27,134 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 761 places, 860 transitions, 2392 flow [2023-08-24 06:33:27,134 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 761 places, 860 transitions, 2392 flow [2023-08-24 06:33:27,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 761 places, 860 transitions, 2392 flow [2023-08-24 06:33:27,614 INFO L124 PetriNetUnfolderBase]: 244/1743 cut-off events. [2023-08-24 06:33:27,614 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 06:33:27,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2116 conditions, 1743 events. 244/1743 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6422 event pairs, 0 based on Foata normal form. 0/1449 useless extension candidates. Maximal degree in co-relation 1994. Up to 50 conditions per place. [2023-08-24 06:33:27,908 INFO L119 LiptonReduction]: Number of co-enabled transitions 641280 [2023-08-24 06:33:33,297 INFO L134 LiptonReduction]: Checked pairs total: 1593189 [2023-08-24 06:33:33,297 INFO L136 LiptonReduction]: Total number of compositions: 531 [2023-08-24 06:33:33,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:33:33,298 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:33:33,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:33:33,397 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:33:33,397 INFO L124 PetriNetUnfolderBase]: 186/687 cut-off events. [2023-08-24 06:33:33,397 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 06:33:33,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:33:33,397 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 06:33:33,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:33:33,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:33:33,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1938866656, now seen corresponding path program 1 times [2023-08-24 06:33:33,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:33:33,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576939526] [2023-08-24 06:33:33,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:33:33,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:33:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:33,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:33:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:33,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:33:33,455 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:33:33,455 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:33:33,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-24 06:33:33,455 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:33:33,456 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:33:33,456 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:33:33,456 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-08-24 06:33:33,497 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:33:33,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 790 places, 893 transitions, 2511 flow [2023-08-24 06:33:34,035 INFO L124 PetriNetUnfolderBase]: 254/1813 cut-off events. [2023-08-24 06:33:34,035 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 06:33:34,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2214 conditions, 1813 events. 254/1813 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6686 event pairs, 0 based on Foata normal form. 0/1507 useless extension candidates. Maximal degree in co-relation 2091. Up to 52 conditions per place. [2023-08-24 06:33:34,135 INFO L82 GeneralOperation]: Start removeDead. Operand has 790 places, 893 transitions, 2511 flow [2023-08-24 06:33:34,167 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 790 places, 893 transitions, 2511 flow [2023-08-24 06:33:34,167 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:33:34,167 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 790 places, 893 transitions, 2511 flow [2023-08-24 06:33:34,167 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 790 places, 893 transitions, 2511 flow [2023-08-24 06:33:34,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 790 places, 893 transitions, 2511 flow [2023-08-24 06:33:34,714 INFO L124 PetriNetUnfolderBase]: 254/1813 cut-off events. [2023-08-24 06:33:34,714 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 06:33:34,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2214 conditions, 1813 events. 254/1813 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6686 event pairs, 0 based on Foata normal form. 0/1507 useless extension candidates. Maximal degree in co-relation 2091. Up to 52 conditions per place. [2023-08-24 06:33:34,986 INFO L119 LiptonReduction]: Number of co-enabled transitions 694400 [2023-08-24 06:33:40,635 INFO L134 LiptonReduction]: Checked pairs total: 1730889 [2023-08-24 06:33:40,635 INFO L136 LiptonReduction]: Total number of compositions: 559 [2023-08-24 06:33:40,636 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:33:40,636 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:33:40,636 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:33:40,745 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:33:40,745 INFO L124 PetriNetUnfolderBase]: 194/716 cut-off events. [2023-08-24 06:33:40,745 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 06:33:40,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:33:40,745 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 06:33:40,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:33:40,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:33:40,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1973317047, now seen corresponding path program 1 times [2023-08-24 06:33:40,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:33:40,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835202346] [2023-08-24 06:33:40,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:33:40,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:33:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:40,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:33:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:40,804 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:33:40,804 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:33:40,804 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:33:40,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-24 06:33:40,804 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:33:40,804 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:33:40,804 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:33:40,804 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-08-24 06:33:40,849 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:33:40,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 819 places, 926 transitions, 2632 flow [2023-08-24 06:33:41,466 INFO L124 PetriNetUnfolderBase]: 264/1883 cut-off events. [2023-08-24 06:33:41,466 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 06:33:41,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2313 conditions, 1883 events. 264/1883 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6945 event pairs, 0 based on Foata normal form. 0/1565 useless extension candidates. Maximal degree in co-relation 2189. Up to 54 conditions per place. [2023-08-24 06:33:41,538 INFO L82 GeneralOperation]: Start removeDead. Operand has 819 places, 926 transitions, 2632 flow [2023-08-24 06:33:41,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 819 places, 926 transitions, 2632 flow [2023-08-24 06:33:41,560 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:33:41,560 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 819 places, 926 transitions, 2632 flow [2023-08-24 06:33:41,560 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 819 places, 926 transitions, 2632 flow [2023-08-24 06:33:41,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 819 places, 926 transitions, 2632 flow [2023-08-24 06:33:42,120 INFO L124 PetriNetUnfolderBase]: 264/1883 cut-off events. [2023-08-24 06:33:42,120 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 06:33:42,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2313 conditions, 1883 events. 264/1883 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6945 event pairs, 0 based on Foata normal form. 0/1565 useless extension candidates. Maximal degree in co-relation 2189. Up to 54 conditions per place. [2023-08-24 06:33:42,478 INFO L119 LiptonReduction]: Number of co-enabled transitions 749632 [2023-08-24 06:33:48,113 INFO L134 LiptonReduction]: Checked pairs total: 1864572 [2023-08-24 06:33:48,113 INFO L136 LiptonReduction]: Total number of compositions: 575 [2023-08-24 06:33:48,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:33:48,114 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:33:48,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:33:48,232 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:33:48,232 INFO L124 PetriNetUnfolderBase]: 202/745 cut-off events. [2023-08-24 06:33:48,232 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 06:33:48,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:33:48,232 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 06:33:48,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:33:48,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:33:48,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1499480835, now seen corresponding path program 1 times [2023-08-24 06:33:48,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:33:48,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100517671] [2023-08-24 06:33:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:33:48,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:33:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:48,286 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:33:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:48,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:33:48,327 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:33:48,327 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:33:48,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-24 06:33:48,328 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:33:48,328 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:33:48,328 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:33:48,328 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-08-24 06:33:48,372 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:33:48,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 848 places, 959 transitions, 2755 flow [2023-08-24 06:33:48,996 INFO L124 PetriNetUnfolderBase]: 274/1953 cut-off events. [2023-08-24 06:33:48,996 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 06:33:49,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2413 conditions, 1953 events. 274/1953 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7113 event pairs, 0 based on Foata normal form. 0/1623 useless extension candidates. Maximal degree in co-relation 2288. Up to 56 conditions per place. [2023-08-24 06:33:49,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 848 places, 959 transitions, 2755 flow [2023-08-24 06:33:49,145 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 848 places, 959 transitions, 2755 flow [2023-08-24 06:33:49,145 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:33:49,146 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 848 places, 959 transitions, 2755 flow [2023-08-24 06:33:49,146 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 848 places, 959 transitions, 2755 flow [2023-08-24 06:33:49,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 848 places, 959 transitions, 2755 flow [2023-08-24 06:33:49,769 INFO L124 PetriNetUnfolderBase]: 274/1953 cut-off events. [2023-08-24 06:33:49,769 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 06:33:49,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2413 conditions, 1953 events. 274/1953 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7113 event pairs, 0 based on Foata normal form. 0/1623 useless extension candidates. Maximal degree in co-relation 2288. Up to 56 conditions per place. [2023-08-24 06:33:50,207 INFO L119 LiptonReduction]: Number of co-enabled transitions 806976 [2023-08-24 06:33:56,312 INFO L134 LiptonReduction]: Checked pairs total: 2238361 [2023-08-24 06:33:56,312 INFO L136 LiptonReduction]: Total number of compositions: 593 [2023-08-24 06:33:56,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:33:56,313 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:33:56,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:33:56,448 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:33:56,448 INFO L124 PetriNetUnfolderBase]: 239/806 cut-off events. [2023-08-24 06:33:56,448 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 06:33:56,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:33:56,449 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 06:33:56,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:33:56,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:33:56,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1921777282, now seen corresponding path program 1 times [2023-08-24 06:33:56,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:33:56,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078326141] [2023-08-24 06:33:56,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:33:56,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:33:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:56,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:33:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:33:56,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:33:56,523 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:33:56,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:33:56,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-24 06:33:56,523 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:33:56,523 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:33:56,523 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:33:56,523 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-08-24 06:33:56,569 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:33:56,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 877 places, 992 transitions, 2880 flow [2023-08-24 06:33:57,250 INFO L124 PetriNetUnfolderBase]: 284/2023 cut-off events. [2023-08-24 06:33:57,250 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-24 06:33:57,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2514 conditions, 2023 events. 284/2023 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7361 event pairs, 0 based on Foata normal form. 0/1681 useless extension candidates. Maximal degree in co-relation 2388. Up to 58 conditions per place. [2023-08-24 06:33:57,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 877 places, 992 transitions, 2880 flow [2023-08-24 06:33:57,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 877 places, 992 transitions, 2880 flow [2023-08-24 06:33:57,422 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:33:57,422 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 877 places, 992 transitions, 2880 flow [2023-08-24 06:33:57,422 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 877 places, 992 transitions, 2880 flow [2023-08-24 06:33:57,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 877 places, 992 transitions, 2880 flow [2023-08-24 06:33:58,089 INFO L124 PetriNetUnfolderBase]: 284/2023 cut-off events. [2023-08-24 06:33:58,089 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-24 06:33:58,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2514 conditions, 2023 events. 284/2023 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7361 event pairs, 0 based on Foata normal form. 0/1681 useless extension candidates. Maximal degree in co-relation 2388. Up to 58 conditions per place. [2023-08-24 06:33:58,498 INFO L119 LiptonReduction]: Number of co-enabled transitions 866432 [2023-08-24 06:34:04,711 INFO L134 LiptonReduction]: Checked pairs total: 2153371 [2023-08-24 06:34:04,711 INFO L136 LiptonReduction]: Total number of compositions: 619 [2023-08-24 06:34:04,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:34:04,713 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:34:04,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:34:04,855 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:34:04,855 INFO L124 PetriNetUnfolderBase]: 248/835 cut-off events. [2023-08-24 06:34:04,855 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-24 06:34:04,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:34:04,855 INFO L208 CegarLoopForPetriNet]: trace histogram [29, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:34:04,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:34:04,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:34:04,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1545128552, now seen corresponding path program 1 times [2023-08-24 06:34:04,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:34:04,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917092936] [2023-08-24 06:34:04,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:34:04,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:34:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:04,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:34:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:04,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:34:04,920 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:34:04,920 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:34:04,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-24 06:34:04,920 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:34:04,920 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:34:04,920 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:34:04,920 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-08-24 06:34:04,967 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:34:04,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 906 places, 1025 transitions, 3007 flow [2023-08-24 06:34:05,718 INFO L124 PetriNetUnfolderBase]: 294/2093 cut-off events. [2023-08-24 06:34:05,718 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-24 06:34:05,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2616 conditions, 2093 events. 294/2093 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7617 event pairs, 0 based on Foata normal form. 0/1739 useless extension candidates. Maximal degree in co-relation 2489. Up to 60 conditions per place. [2023-08-24 06:34:05,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 906 places, 1025 transitions, 3007 flow [2023-08-24 06:34:05,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 906 places, 1025 transitions, 3007 flow [2023-08-24 06:34:05,897 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:34:05,897 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 906 places, 1025 transitions, 3007 flow [2023-08-24 06:34:05,897 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 906 places, 1025 transitions, 3007 flow [2023-08-24 06:34:05,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 906 places, 1025 transitions, 3007 flow [2023-08-24 06:34:06,663 INFO L124 PetriNetUnfolderBase]: 294/2093 cut-off events. [2023-08-24 06:34:06,663 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-24 06:34:06,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2616 conditions, 2093 events. 294/2093 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7617 event pairs, 0 based on Foata normal form. 0/1739 useless extension candidates. Maximal degree in co-relation 2489. Up to 60 conditions per place. [2023-08-24 06:34:06,984 INFO L119 LiptonReduction]: Number of co-enabled transitions 928000 [2023-08-24 06:34:13,179 INFO L134 LiptonReduction]: Checked pairs total: 2304542 [2023-08-24 06:34:13,179 INFO L136 LiptonReduction]: Total number of compositions: 635 [2023-08-24 06:34:13,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:34:13,180 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:34:13,180 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:34:13,332 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:34:13,332 INFO L124 PetriNetUnfolderBase]: 257/866 cut-off events. [2023-08-24 06:34:13,332 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-24 06:34:13,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:34:13,332 INFO L208 CegarLoopForPetriNet]: trace histogram [30, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:34:13,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:34:13,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:34:13,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1177662396, now seen corresponding path program 1 times [2023-08-24 06:34:13,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:34:13,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415165716] [2023-08-24 06:34:13,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:34:13,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:34:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:13,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:34:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:13,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:34:13,400 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:34:13,400 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:34:13,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-24 06:34:13,400 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:34:13,401 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:34:13,401 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:34:13,401 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-08-24 06:34:13,452 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:34:13,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 935 places, 1058 transitions, 3136 flow [2023-08-24 06:34:14,257 INFO L124 PetriNetUnfolderBase]: 304/2163 cut-off events. [2023-08-24 06:34:14,258 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-24 06:34:14,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2719 conditions, 2163 events. 304/2163 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7889 event pairs, 0 based on Foata normal form. 0/1797 useless extension candidates. Maximal degree in co-relation 2591. Up to 62 conditions per place. [2023-08-24 06:34:14,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 935 places, 1058 transitions, 3136 flow [2023-08-24 06:34:14,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 935 places, 1058 transitions, 3136 flow [2023-08-24 06:34:14,402 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:34:14,402 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 935 places, 1058 transitions, 3136 flow [2023-08-24 06:34:14,402 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 935 places, 1058 transitions, 3136 flow [2023-08-24 06:34:14,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 935 places, 1058 transitions, 3136 flow [2023-08-24 06:34:15,181 INFO L124 PetriNetUnfolderBase]: 304/2163 cut-off events. [2023-08-24 06:34:15,181 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-24 06:34:15,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2719 conditions, 2163 events. 304/2163 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 7889 event pairs, 0 based on Foata normal form. 0/1797 useless extension candidates. Maximal degree in co-relation 2591. Up to 62 conditions per place. [2023-08-24 06:34:15,730 INFO L119 LiptonReduction]: Number of co-enabled transitions 991680 [2023-08-24 06:34:22,453 INFO L134 LiptonReduction]: Checked pairs total: 2481711 [2023-08-24 06:34:22,453 INFO L136 LiptonReduction]: Total number of compositions: 657 [2023-08-24 06:34:22,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:34:22,454 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:34:22,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:34:22,615 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:34:22,615 INFO L124 PetriNetUnfolderBase]: 236/865 cut-off events. [2023-08-24 06:34:22,615 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-24 06:34:22,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:34:22,616 INFO L208 CegarLoopForPetriNet]: trace histogram [31, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:34:22,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:34:22,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:34:22,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2006317661, now seen corresponding path program 1 times [2023-08-24 06:34:22,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:34:22,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835639430] [2023-08-24 06:34:22,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:34:22,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:34:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:22,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:34:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:22,687 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:34:22,687 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:34:22,687 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:34:22,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-24 06:34:22,687 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:34:22,688 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:34:22,688 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:34:22,688 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-08-24 06:34:22,738 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:34:22,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 964 places, 1091 transitions, 3267 flow [2023-08-24 06:34:23,583 INFO L124 PetriNetUnfolderBase]: 314/2233 cut-off events. [2023-08-24 06:34:23,583 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-24 06:34:23,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2823 conditions, 2233 events. 314/2233 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8177 event pairs, 0 based on Foata normal form. 0/1855 useless extension candidates. Maximal degree in co-relation 2694. Up to 64 conditions per place. [2023-08-24 06:34:23,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 964 places, 1091 transitions, 3267 flow [2023-08-24 06:34:23,794 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 964 places, 1091 transitions, 3267 flow [2023-08-24 06:34:23,794 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:34:23,795 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 964 places, 1091 transitions, 3267 flow [2023-08-24 06:34:23,795 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 964 places, 1091 transitions, 3267 flow [2023-08-24 06:34:23,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 964 places, 1091 transitions, 3267 flow [2023-08-24 06:34:24,627 INFO L124 PetriNetUnfolderBase]: 314/2233 cut-off events. [2023-08-24 06:34:24,628 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-24 06:34:24,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2823 conditions, 2233 events. 314/2233 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8177 event pairs, 0 based on Foata normal form. 0/1855 useless extension candidates. Maximal degree in co-relation 2694. Up to 64 conditions per place. [2023-08-24 06:34:25,127 INFO L119 LiptonReduction]: Number of co-enabled transitions 1057472 [2023-08-24 06:34:31,855 INFO L134 LiptonReduction]: Checked pairs total: 2648435 [2023-08-24 06:34:31,855 INFO L136 LiptonReduction]: Total number of compositions: 677 [2023-08-24 06:34:31,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:34:31,856 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:34:31,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:34:32,029 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:34:32,029 INFO L124 PetriNetUnfolderBase]: 275/926 cut-off events. [2023-08-24 06:34:32,029 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-24 06:34:32,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:34:32,030 INFO L208 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:34:32,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:34:32,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:34:32,030 INFO L85 PathProgramCache]: Analyzing trace with hash 753463999, now seen corresponding path program 1 times [2023-08-24 06:34:32,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:34:32,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530987292] [2023-08-24 06:34:32,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:34:32,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:34:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:32,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:34:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:32,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:34:32,103 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:34:32,103 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:34:32,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-24 06:34:32,103 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:34:32,103 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:34:32,103 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:34:32,103 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-08-24 06:34:32,156 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:34:32,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 993 places, 1124 transitions, 3400 flow [2023-08-24 06:34:33,064 INFO L124 PetriNetUnfolderBase]: 324/2303 cut-off events. [2023-08-24 06:34:33,065 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-24 06:34:33,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 2303 events. 324/2303 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8424 event pairs, 0 based on Foata normal form. 0/1913 useless extension candidates. Maximal degree in co-relation 2798. Up to 66 conditions per place. [2023-08-24 06:34:33,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 993 places, 1124 transitions, 3400 flow [2023-08-24 06:34:33,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 993 places, 1124 transitions, 3400 flow [2023-08-24 06:34:33,266 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:34:33,266 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 993 places, 1124 transitions, 3400 flow [2023-08-24 06:34:33,267 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 993 places, 1124 transitions, 3400 flow [2023-08-24 06:34:33,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 993 places, 1124 transitions, 3400 flow [2023-08-24 06:34:34,252 INFO L124 PetriNetUnfolderBase]: 324/2303 cut-off events. [2023-08-24 06:34:34,252 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-24 06:34:34,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 2303 events. 324/2303 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8424 event pairs, 0 based on Foata normal form. 0/1913 useless extension candidates. Maximal degree in co-relation 2798. Up to 66 conditions per place. [2023-08-24 06:34:34,618 INFO L119 LiptonReduction]: Number of co-enabled transitions 1125376 [2023-08-24 06:34:41,426 INFO L134 LiptonReduction]: Checked pairs total: 2801452 [2023-08-24 06:34:41,427 INFO L136 LiptonReduction]: Total number of compositions: 700 [2023-08-24 06:34:41,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:34:41,428 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:34:41,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:34:41,612 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:34:41,612 INFO L124 PetriNetUnfolderBase]: 284/954 cut-off events. [2023-08-24 06:34:41,612 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-24 06:34:41,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:34:41,612 INFO L208 CegarLoopForPetriNet]: trace histogram [33, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:34:41,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:34:41,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:34:41,613 INFO L85 PathProgramCache]: Analyzing trace with hash 877902498, now seen corresponding path program 1 times [2023-08-24 06:34:41,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:34:41,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865911785] [2023-08-24 06:34:41,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:34:41,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:34:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:41,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:34:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:41,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:34:41,696 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:34:41,696 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:34:41,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-24 06:34:41,697 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:34:41,697 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:34:41,697 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:34:41,697 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-08-24 06:34:41,741 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:34:41,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1022 places, 1157 transitions, 3535 flow [2023-08-24 06:34:42,764 INFO L124 PetriNetUnfolderBase]: 334/2373 cut-off events. [2023-08-24 06:34:42,764 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-24 06:34:42,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3034 conditions, 2373 events. 334/2373 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8694 event pairs, 0 based on Foata normal form. 0/1971 useless extension candidates. Maximal degree in co-relation 2903. Up to 68 conditions per place. [2023-08-24 06:34:42,879 INFO L82 GeneralOperation]: Start removeDead. Operand has 1022 places, 1157 transitions, 3535 flow [2023-08-24 06:34:42,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1022 places, 1157 transitions, 3535 flow [2023-08-24 06:34:42,912 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:34:42,912 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1022 places, 1157 transitions, 3535 flow [2023-08-24 06:34:42,912 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1022 places, 1157 transitions, 3535 flow [2023-08-24 06:34:42,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1022 places, 1157 transitions, 3535 flow [2023-08-24 06:34:43,871 INFO L124 PetriNetUnfolderBase]: 334/2373 cut-off events. [2023-08-24 06:34:43,871 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-24 06:34:44,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3034 conditions, 2373 events. 334/2373 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 8694 event pairs, 0 based on Foata normal form. 0/1971 useless extension candidates. Maximal degree in co-relation 2903. Up to 68 conditions per place. [2023-08-24 06:34:44,603 INFO L119 LiptonReduction]: Number of co-enabled transitions 1195392 [2023-08-24 06:34:51,980 INFO L134 LiptonReduction]: Checked pairs total: 2970445 [2023-08-24 06:34:51,980 INFO L136 LiptonReduction]: Total number of compositions: 716 [2023-08-24 06:34:51,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:34:51,981 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:34:51,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:34:52,179 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:34:52,180 INFO L124 PetriNetUnfolderBase]: 293/984 cut-off events. [2023-08-24 06:34:52,180 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-24 06:34:52,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:34:52,180 INFO L208 CegarLoopForPetriNet]: trace histogram [34, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:34:52,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:34:52,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:34:52,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1819388656, now seen corresponding path program 1 times [2023-08-24 06:34:52,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:34:52,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193752513] [2023-08-24 06:34:52,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:34:52,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:34:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:52,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:34:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:34:52,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:34:52,261 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:34:52,261 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:34:52,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-24 06:34:52,262 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:34:52,262 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:34:52,262 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:34:52,262 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2023-08-24 06:34:52,318 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:34:52,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1051 places, 1190 transitions, 3672 flow [2023-08-24 06:34:53,406 INFO L124 PetriNetUnfolderBase]: 344/2443 cut-off events. [2023-08-24 06:34:53,406 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-24 06:34:53,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3141 conditions, 2443 events. 344/2443 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9013 event pairs, 0 based on Foata normal form. 0/2029 useless extension candidates. Maximal degree in co-relation 3009. Up to 70 conditions per place. [2023-08-24 06:34:53,537 INFO L82 GeneralOperation]: Start removeDead. Operand has 1051 places, 1190 transitions, 3672 flow [2023-08-24 06:34:53,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1051 places, 1190 transitions, 3672 flow [2023-08-24 06:34:53,576 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:34:53,577 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1051 places, 1190 transitions, 3672 flow [2023-08-24 06:34:53,577 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1051 places, 1190 transitions, 3672 flow [2023-08-24 06:34:53,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1051 places, 1190 transitions, 3672 flow [2023-08-24 06:34:54,600 INFO L124 PetriNetUnfolderBase]: 344/2443 cut-off events. [2023-08-24 06:34:54,600 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-24 06:34:54,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3141 conditions, 2443 events. 344/2443 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9013 event pairs, 0 based on Foata normal form. 0/2029 useless extension candidates. Maximal degree in co-relation 3009. Up to 70 conditions per place. [2023-08-24 06:34:55,253 INFO L119 LiptonReduction]: Number of co-enabled transitions 1267520 [2023-08-24 06:35:02,701 INFO L134 LiptonReduction]: Checked pairs total: 3176615 [2023-08-24 06:35:02,701 INFO L136 LiptonReduction]: Total number of compositions: 741 [2023-08-24 06:35:02,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:35:02,702 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:35:02,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:35:02,938 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:35:02,938 INFO L124 PetriNetUnfolderBase]: 302/1016 cut-off events. [2023-08-24 06:35:02,938 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-24 06:35:02,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:35:02,938 INFO L208 CegarLoopForPetriNet]: trace histogram [35, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:35:02,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:35:02,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:35:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash 241428192, now seen corresponding path program 1 times [2023-08-24 06:35:02,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:35:02,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954766643] [2023-08-24 06:35:02,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:35:02,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:35:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:35:02,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:35:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:35:03,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:35:03,023 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:35:03,023 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:35:03,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-24 06:35:03,023 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:35:03,023 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:35:03,023 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:35:03,023 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2023-08-24 06:35:03,078 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:35:03,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1080 places, 1223 transitions, 3811 flow [2023-08-24 06:35:04,176 INFO L124 PetriNetUnfolderBase]: 354/2513 cut-off events. [2023-08-24 06:35:04,177 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-24 06:35:04,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3249 conditions, 2513 events. 354/2513 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9219 event pairs, 0 based on Foata normal form. 0/2087 useless extension candidates. Maximal degree in co-relation 3116. Up to 72 conditions per place. [2023-08-24 06:35:04,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 1080 places, 1223 transitions, 3811 flow [2023-08-24 06:35:04,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1080 places, 1223 transitions, 3811 flow [2023-08-24 06:35:04,455 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:35:04,455 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1080 places, 1223 transitions, 3811 flow [2023-08-24 06:35:04,455 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1080 places, 1223 transitions, 3811 flow [2023-08-24 06:35:04,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1080 places, 1223 transitions, 3811 flow [2023-08-24 06:35:05,539 INFO L124 PetriNetUnfolderBase]: 354/2513 cut-off events. [2023-08-24 06:35:05,539 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-24 06:35:05,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3249 conditions, 2513 events. 354/2513 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9219 event pairs, 0 based on Foata normal form. 0/2087 useless extension candidates. Maximal degree in co-relation 3116. Up to 72 conditions per place. [2023-08-24 06:35:06,096 INFO L119 LiptonReduction]: Number of co-enabled transitions 1341760 [2023-08-24 06:35:13,747 INFO L134 LiptonReduction]: Checked pairs total: 3362065 [2023-08-24 06:35:13,747 INFO L136 LiptonReduction]: Total number of compositions: 754 [2023-08-24 06:35:13,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:35:13,748 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:35:13,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:35:13,969 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:35:13,969 INFO L124 PetriNetUnfolderBase]: 311/1046 cut-off events. [2023-08-24 06:35:13,969 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-24 06:35:13,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:35:13,970 INFO L208 CegarLoopForPetriNet]: trace histogram [36, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:35:13,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:35:13,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:35:13,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1082017272, now seen corresponding path program 1 times [2023-08-24 06:35:13,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:35:13,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906065998] [2023-08-24 06:35:13,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:35:13,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:35:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:35:14,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:35:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:35:14,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:35:14,059 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:35:14,059 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:35:14,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-24 06:35:14,059 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:35:14,059 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:35:14,060 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:35:14,060 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2023-08-24 06:35:14,118 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:35:14,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1109 places, 1256 transitions, 3952 flow [2023-08-24 06:35:15,262 INFO L124 PetriNetUnfolderBase]: 364/2583 cut-off events. [2023-08-24 06:35:15,262 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-24 06:35:15,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3358 conditions, 2583 events. 364/2583 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9482 event pairs, 0 based on Foata normal form. 0/2145 useless extension candidates. Maximal degree in co-relation 3224. Up to 74 conditions per place. [2023-08-24 06:35:15,436 INFO L82 GeneralOperation]: Start removeDead. Operand has 1109 places, 1256 transitions, 3952 flow [2023-08-24 06:35:15,487 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1109 places, 1256 transitions, 3952 flow [2023-08-24 06:35:15,487 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:35:15,488 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1109 places, 1256 transitions, 3952 flow [2023-08-24 06:35:15,488 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1109 places, 1256 transitions, 3952 flow [2023-08-24 06:35:15,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1109 places, 1256 transitions, 3952 flow [2023-08-24 06:35:16,770 INFO L124 PetriNetUnfolderBase]: 364/2583 cut-off events. [2023-08-24 06:35:16,771 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-24 06:35:16,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3358 conditions, 2583 events. 364/2583 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9482 event pairs, 0 based on Foata normal form. 0/2145 useless extension candidates. Maximal degree in co-relation 3224. Up to 74 conditions per place. [2023-08-24 06:35:17,241 INFO L119 LiptonReduction]: Number of co-enabled transitions 1418112 [2023-08-24 06:35:25,133 INFO L134 LiptonReduction]: Checked pairs total: 3564486 [2023-08-24 06:35:25,133 INFO L136 LiptonReduction]: Total number of compositions: 779 [2023-08-24 06:35:25,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:35:25,134 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:35:25,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:35:25,368 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:35:25,368 INFO L124 PetriNetUnfolderBase]: 320/1075 cut-off events. [2023-08-24 06:35:25,368 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-24 06:35:25,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:35:25,368 INFO L208 CegarLoopForPetriNet]: trace histogram [37, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:35:25,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:35:25,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:35:25,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2026760569, now seen corresponding path program 1 times [2023-08-24 06:35:25,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:35:25,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597806720] [2023-08-24 06:35:25,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:35:25,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:35:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:35:25,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:35:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:35:25,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:35:25,464 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:35:25,464 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:35:25,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-24 06:35:25,464 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:35:25,464 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:35:25,464 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:35:25,464 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2023-08-24 06:35:25,531 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:35:25,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1138 places, 1289 transitions, 4095 flow [2023-08-24 06:35:26,832 INFO L124 PetriNetUnfolderBase]: 374/2653 cut-off events. [2023-08-24 06:35:26,832 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-24 06:35:26,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3468 conditions, 2653 events. 374/2653 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9707 event pairs, 0 based on Foata normal form. 0/2203 useless extension candidates. Maximal degree in co-relation 3333. Up to 76 conditions per place. [2023-08-24 06:35:26,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 1138 places, 1289 transitions, 4095 flow [2023-08-24 06:35:27,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1138 places, 1289 transitions, 4095 flow [2023-08-24 06:35:27,027 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:35:27,028 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1138 places, 1289 transitions, 4095 flow [2023-08-24 06:35:27,028 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1138 places, 1289 transitions, 4095 flow [2023-08-24 06:35:27,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1138 places, 1289 transitions, 4095 flow [2023-08-24 06:35:28,245 INFO L124 PetriNetUnfolderBase]: 374/2653 cut-off events. [2023-08-24 06:35:28,245 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-24 06:35:28,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3468 conditions, 2653 events. 374/2653 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 9707 event pairs, 0 based on Foata normal form. 0/2203 useless extension candidates. Maximal degree in co-relation 3333. Up to 76 conditions per place. [2023-08-24 06:35:29,112 INFO L119 LiptonReduction]: Number of co-enabled transitions 1496576 [2023-08-24 06:35:37,499 INFO L134 LiptonReduction]: Checked pairs total: 4191691 [2023-08-24 06:35:37,499 INFO L136 LiptonReduction]: Total number of compositions: 794 [2023-08-24 06:35:37,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:35:37,500 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:35:37,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:35:37,746 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:35:37,746 INFO L124 PetriNetUnfolderBase]: 292/1069 cut-off events. [2023-08-24 06:35:37,746 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-24 06:35:37,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:35:37,746 INFO L208 CegarLoopForPetriNet]: trace histogram [38, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:35:37,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:35:37,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:35:37,747 INFO L85 PathProgramCache]: Analyzing trace with hash 434934862, now seen corresponding path program 1 times [2023-08-24 06:35:37,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:35:37,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465358858] [2023-08-24 06:35:37,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:35:37,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:35:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:35:37,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:35:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:35:37,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:35:37,841 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:35:37,842 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:35:37,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-24 06:35:37,842 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:35:37,842 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:35:37,842 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:35:37,842 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2023-08-24 06:35:37,913 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:35:37,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1167 places, 1322 transitions, 4240 flow [2023-08-24 06:35:39,336 INFO L124 PetriNetUnfolderBase]: 384/2723 cut-off events. [2023-08-24 06:35:39,336 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-24 06:35:39,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3579 conditions, 2723 events. 384/2723 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10026 event pairs, 0 based on Foata normal form. 0/2261 useless extension candidates. Maximal degree in co-relation 3443. Up to 78 conditions per place. [2023-08-24 06:35:39,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 1167 places, 1322 transitions, 4240 flow [2023-08-24 06:35:39,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1167 places, 1322 transitions, 4240 flow [2023-08-24 06:35:39,523 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:35:39,523 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1167 places, 1322 transitions, 4240 flow [2023-08-24 06:35:39,524 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1167 places, 1322 transitions, 4240 flow [2023-08-24 06:35:39,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1167 places, 1322 transitions, 4240 flow [2023-08-24 06:35:40,806 INFO L124 PetriNetUnfolderBase]: 384/2723 cut-off events. [2023-08-24 06:35:40,806 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-24 06:35:41,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3579 conditions, 2723 events. 384/2723 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10026 event pairs, 0 based on Foata normal form. 0/2261 useless extension candidates. Maximal degree in co-relation 3443. Up to 78 conditions per place. [2023-08-24 06:35:41,633 INFO L119 LiptonReduction]: Number of co-enabled transitions 1577152 [2023-08-24 06:35:49,955 INFO L134 LiptonReduction]: Checked pairs total: 3966257 [2023-08-24 06:35:49,956 INFO L136 LiptonReduction]: Total number of compositions: 817 [2023-08-24 06:35:49,957 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:35:49,957 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:35:49,957 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:35:50,274 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:35:50,275 INFO L124 PetriNetUnfolderBase]: 336/1131 cut-off events. [2023-08-24 06:35:50,275 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-24 06:35:50,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:35:50,275 INFO L208 CegarLoopForPetriNet]: trace histogram [39, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:35:50,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:35:50,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:35:50,275 INFO L85 PathProgramCache]: Analyzing trace with hash -305375173, now seen corresponding path program 1 times [2023-08-24 06:35:50,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:35:50,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002263831] [2023-08-24 06:35:50,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:35:50,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:35:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:35:50,317 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:35:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:35:50,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:35:50,376 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:35:50,376 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:35:50,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-24 06:35:50,377 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:35:50,377 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:35:50,377 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:35:50,377 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2023-08-24 06:35:50,446 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:35:50,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1196 places, 1355 transitions, 4387 flow [2023-08-24 06:35:51,829 INFO L124 PetriNetUnfolderBase]: 394/2793 cut-off events. [2023-08-24 06:35:51,829 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-24 06:35:52,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3691 conditions, 2793 events. 394/2793 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10277 event pairs, 0 based on Foata normal form. 0/2319 useless extension candidates. Maximal degree in co-relation 3554. Up to 80 conditions per place. [2023-08-24 06:35:52,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 1196 places, 1355 transitions, 4387 flow [2023-08-24 06:35:52,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1196 places, 1355 transitions, 4387 flow [2023-08-24 06:35:52,175 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:35:52,175 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1196 places, 1355 transitions, 4387 flow [2023-08-24 06:35:52,175 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1196 places, 1355 transitions, 4387 flow [2023-08-24 06:35:52,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1196 places, 1355 transitions, 4387 flow [2023-08-24 06:35:53,547 INFO L124 PetriNetUnfolderBase]: 394/2793 cut-off events. [2023-08-24 06:35:53,547 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-24 06:35:53,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3691 conditions, 2793 events. 394/2793 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10277 event pairs, 0 based on Foata normal form. 0/2319 useless extension candidates. Maximal degree in co-relation 3554. Up to 80 conditions per place. [2023-08-24 06:35:54,233 INFO L119 LiptonReduction]: Number of co-enabled transitions 1659840 [2023-08-24 06:36:02,726 INFO L134 LiptonReduction]: Checked pairs total: 4159524 [2023-08-24 06:36:02,726 INFO L136 LiptonReduction]: Total number of compositions: 842 [2023-08-24 06:36:02,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:36:02,727 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:36:02,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:36:03,010 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:36:03,011 INFO L124 PetriNetUnfolderBase]: 347/1166 cut-off events. [2023-08-24 06:36:03,011 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-24 06:36:03,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:36:03,011 INFO L208 CegarLoopForPetriNet]: trace histogram [40, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:36:03,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:36:03,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:36:03,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1632252106, now seen corresponding path program 1 times [2023-08-24 06:36:03,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:36:03,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284034506] [2023-08-24 06:36:03,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:36:03,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:36:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:36:03,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:36:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:36:03,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:36:03,128 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:36:03,128 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:36:03,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-24 06:36:03,128 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:36:03,129 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:36:03,129 WARN L233 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:36:03,129 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2023-08-24 06:36:03,202 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:36:03,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1225 places, 1388 transitions, 4536 flow [2023-08-24 06:36:04,644 INFO L124 PetriNetUnfolderBase]: 404/2863 cut-off events. [2023-08-24 06:36:04,645 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-24 06:36:04,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3804 conditions, 2863 events. 404/2863 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10548 event pairs, 0 based on Foata normal form. 0/2377 useless extension candidates. Maximal degree in co-relation 3666. Up to 82 conditions per place. [2023-08-24 06:36:04,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 1225 places, 1388 transitions, 4536 flow [2023-08-24 06:36:04,913 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1225 places, 1388 transitions, 4536 flow [2023-08-24 06:36:04,914 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:36:04,914 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1225 places, 1388 transitions, 4536 flow [2023-08-24 06:36:04,914 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1225 places, 1388 transitions, 4536 flow [2023-08-24 06:36:04,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1225 places, 1388 transitions, 4536 flow [2023-08-24 06:36:06,507 INFO L124 PetriNetUnfolderBase]: 404/2863 cut-off events. [2023-08-24 06:36:06,507 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-24 06:36:06,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3804 conditions, 2863 events. 404/2863 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10548 event pairs, 0 based on Foata normal form. 0/2377 useless extension candidates. Maximal degree in co-relation 3666. Up to 82 conditions per place. [2023-08-24 06:36:07,122 INFO L119 LiptonReduction]: Number of co-enabled transitions 1744640 [2023-08-24 06:36:15,971 INFO L134 LiptonReduction]: Checked pairs total: 4874748 [2023-08-24 06:36:15,971 INFO L136 LiptonReduction]: Total number of compositions: 849 [2023-08-24 06:36:15,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:36:15,972 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:36:15,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:36:16,268 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:36:16,268 INFO L124 PetriNetUnfolderBase]: 356/1196 cut-off events. [2023-08-24 06:36:16,268 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-24 06:36:16,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:36:16,268 INFO L208 CegarLoopForPetriNet]: trace histogram [41, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:36:16,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:36:16,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:36:16,269 INFO L85 PathProgramCache]: Analyzing trace with hash 412122557, now seen corresponding path program 1 times [2023-08-24 06:36:16,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:36:16,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224383268] [2023-08-24 06:36:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:36:16,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:36:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:36:16,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:36:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:36:16,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:36:16,358 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:36:16,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:36:16,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-24 06:36:16,358 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:36:16,358 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:36:16,358 WARN L233 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:36:16,358 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2023-08-24 06:36:16,422 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:36:16,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1254 places, 1421 transitions, 4687 flow [2023-08-24 06:36:17,968 INFO L124 PetriNetUnfolderBase]: 414/2933 cut-off events. [2023-08-24 06:36:17,969 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-24 06:36:18,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3918 conditions, 2933 events. 414/2933 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10784 event pairs, 0 based on Foata normal form. 0/2435 useless extension candidates. Maximal degree in co-relation 3779. Up to 84 conditions per place. [2023-08-24 06:36:18,177 INFO L82 GeneralOperation]: Start removeDead. Operand has 1254 places, 1421 transitions, 4687 flow [2023-08-24 06:36:18,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1254 places, 1421 transitions, 4687 flow [2023-08-24 06:36:18,240 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:36:18,240 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1254 places, 1421 transitions, 4687 flow [2023-08-24 06:36:18,241 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1254 places, 1421 transitions, 4687 flow [2023-08-24 06:36:18,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1254 places, 1421 transitions, 4687 flow [2023-08-24 06:36:19,892 INFO L124 PetriNetUnfolderBase]: 414/2933 cut-off events. [2023-08-24 06:36:19,892 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-24 06:36:20,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3918 conditions, 2933 events. 414/2933 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 10784 event pairs, 0 based on Foata normal form. 0/2435 useless extension candidates. Maximal degree in co-relation 3779. Up to 84 conditions per place. [2023-08-24 06:36:20,538 INFO L119 LiptonReduction]: Number of co-enabled transitions 1831552 [2023-08-24 06:36:29,618 INFO L134 LiptonReduction]: Checked pairs total: 4599818 [2023-08-24 06:36:29,618 INFO L136 LiptonReduction]: Total number of compositions: 872 [2023-08-24 06:36:29,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:36:29,619 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:36:29,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:36:29,933 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:36:29,933 INFO L124 PetriNetUnfolderBase]: 365/1226 cut-off events. [2023-08-24 06:36:29,933 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-24 06:36:29,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:36:29,933 INFO L208 CegarLoopForPetriNet]: trace histogram [42, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:36:29,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:36:29,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:36:29,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1010934314, now seen corresponding path program 1 times [2023-08-24 06:36:29,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:36:29,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124643791] [2023-08-24 06:36:29,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:36:29,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:36:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:36:29,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:36:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:36:30,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:36:30,040 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:36:30,040 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:36:30,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-24 06:36:30,041 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:36:30,041 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:36:30,041 WARN L233 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:36:30,041 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2023-08-24 06:36:30,108 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:36:30,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1283 places, 1454 transitions, 4840 flow [2023-08-24 06:36:31,667 INFO L124 PetriNetUnfolderBase]: 424/3003 cut-off events. [2023-08-24 06:36:31,668 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-24 06:36:31,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4033 conditions, 3003 events. 424/3003 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11066 event pairs, 0 based on Foata normal form. 0/2493 useless extension candidates. Maximal degree in co-relation 3893. Up to 86 conditions per place. [2023-08-24 06:36:31,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 1283 places, 1454 transitions, 4840 flow [2023-08-24 06:36:32,032 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1283 places, 1454 transitions, 4840 flow [2023-08-24 06:36:32,033 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:36:32,033 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1283 places, 1454 transitions, 4840 flow [2023-08-24 06:36:32,033 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1283 places, 1454 transitions, 4840 flow [2023-08-24 06:36:32,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1283 places, 1454 transitions, 4840 flow [2023-08-24 06:36:33,616 INFO L124 PetriNetUnfolderBase]: 424/3003 cut-off events. [2023-08-24 06:36:33,616 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-24 06:36:33,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4033 conditions, 3003 events. 424/3003 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11066 event pairs, 0 based on Foata normal form. 0/2493 useless extension candidates. Maximal degree in co-relation 3893. Up to 86 conditions per place. [2023-08-24 06:36:34,441 INFO L119 LiptonReduction]: Number of co-enabled transitions 1920576 [2023-08-24 06:36:43,855 INFO L134 LiptonReduction]: Checked pairs total: 4843358 [2023-08-24 06:36:43,855 INFO L136 LiptonReduction]: Total number of compositions: 897 [2023-08-24 06:36:43,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:36:43,856 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:36:43,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:36:44,244 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:36:44,245 INFO L124 PetriNetUnfolderBase]: 374/1255 cut-off events. [2023-08-24 06:36:44,245 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-24 06:36:44,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:36:44,245 INFO L208 CegarLoopForPetriNet]: trace histogram [43, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:36:44,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:36:44,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:36:44,245 INFO L85 PathProgramCache]: Analyzing trace with hash -451626336, now seen corresponding path program 1 times [2023-08-24 06:36:44,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:36:44,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944445690] [2023-08-24 06:36:44,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:36:44,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:36:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:36:44,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:36:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:36:44,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:36:44,350 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:36:44,350 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:36:44,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-24 06:36:44,350 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:36:44,350 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:36:44,350 WARN L233 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:36:44,350 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2023-08-24 06:36:44,427 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:36:44,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1312 places, 1487 transitions, 4995 flow [2023-08-24 06:36:46,114 INFO L124 PetriNetUnfolderBase]: 434/3073 cut-off events. [2023-08-24 06:36:46,114 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-24 06:36:46,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4149 conditions, 3073 events. 434/3073 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11305 event pairs, 0 based on Foata normal form. 0/2551 useless extension candidates. Maximal degree in co-relation 4008. Up to 88 conditions per place. [2023-08-24 06:36:46,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 1312 places, 1487 transitions, 4995 flow [2023-08-24 06:36:46,545 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1312 places, 1487 transitions, 4995 flow [2023-08-24 06:36:46,545 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:36:46,545 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1312 places, 1487 transitions, 4995 flow [2023-08-24 06:36:46,545 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1312 places, 1487 transitions, 4995 flow [2023-08-24 06:36:46,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1312 places, 1487 transitions, 4995 flow [2023-08-24 06:36:48,184 INFO L124 PetriNetUnfolderBase]: 434/3073 cut-off events. [2023-08-24 06:36:48,184 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-24 06:36:48,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4149 conditions, 3073 events. 434/3073 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11305 event pairs, 0 based on Foata normal form. 0/2551 useless extension candidates. Maximal degree in co-relation 4008. Up to 88 conditions per place. [2023-08-24 06:36:49,235 INFO L119 LiptonReduction]: Number of co-enabled transitions 2011712 [2023-08-24 06:36:58,801 INFO L134 LiptonReduction]: Checked pairs total: 5051854 [2023-08-24 06:36:58,802 INFO L136 LiptonReduction]: Total number of compositions: 902 [2023-08-24 06:36:58,803 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:36:58,803 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:36:58,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:36:59,152 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:36:59,153 INFO L124 PetriNetUnfolderBase]: 383/1284 cut-off events. [2023-08-24 06:36:59,153 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-24 06:36:59,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:36:59,153 INFO L208 CegarLoopForPetriNet]: trace histogram [44, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:36:59,153 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:36:59,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:36:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash 934465418, now seen corresponding path program 1 times [2023-08-24 06:36:59,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:36:59,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421004352] [2023-08-24 06:36:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:36:59,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:36:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:36:59,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:36:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:36:59,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:36:59,253 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:36:59,253 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:36:59,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-24 06:36:59,253 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:36:59,253 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:36:59,254 WARN L233 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:36:59,254 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2023-08-24 06:36:59,332 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:36:59,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1341 places, 1520 transitions, 5152 flow [2023-08-24 06:37:01,086 INFO L124 PetriNetUnfolderBase]: 444/3143 cut-off events. [2023-08-24 06:37:01,087 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-24 06:37:01,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4266 conditions, 3143 events. 444/3143 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11686 event pairs, 0 based on Foata normal form. 0/2609 useless extension candidates. Maximal degree in co-relation 4124. Up to 90 conditions per place. [2023-08-24 06:37:01,352 INFO L82 GeneralOperation]: Start removeDead. Operand has 1341 places, 1520 transitions, 5152 flow [2023-08-24 06:37:01,433 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1341 places, 1520 transitions, 5152 flow [2023-08-24 06:37:01,433 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:37:01,433 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1341 places, 1520 transitions, 5152 flow [2023-08-24 06:37:01,433 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1341 places, 1520 transitions, 5152 flow [2023-08-24 06:37:01,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1341 places, 1520 transitions, 5152 flow [2023-08-24 06:37:03,189 INFO L124 PetriNetUnfolderBase]: 444/3143 cut-off events. [2023-08-24 06:37:03,189 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-24 06:37:03,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4266 conditions, 3143 events. 444/3143 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11686 event pairs, 0 based on Foata normal form. 0/2609 useless extension candidates. Maximal degree in co-relation 4124. Up to 90 conditions per place. [2023-08-24 06:37:04,076 INFO L119 LiptonReduction]: Number of co-enabled transitions 2104960 [2023-08-24 06:37:13,850 INFO L134 LiptonReduction]: Checked pairs total: 5223476 [2023-08-24 06:37:13,850 INFO L136 LiptonReduction]: Total number of compositions: 922 [2023-08-24 06:37:13,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:37:13,852 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:37:13,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:37:14,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:37:14,204 INFO L124 PetriNetUnfolderBase]: 346/1267 cut-off events. [2023-08-24 06:37:14,204 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-24 06:37:14,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:37:14,205 INFO L208 CegarLoopForPetriNet]: trace histogram [45, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:37:14,205 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:37:14,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:37:14,205 INFO L85 PathProgramCache]: Analyzing trace with hash -816801939, now seen corresponding path program 1 times [2023-08-24 06:37:14,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:37:14,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288288805] [2023-08-24 06:37:14,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:37:14,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:37:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:37:14,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:37:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:37:14,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:37:14,303 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:37:14,304 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:37:14,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-24 06:37:14,304 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:37:14,304 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:37:14,304 WARN L233 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:37:14,304 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2023-08-24 06:37:14,391 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:37:14,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1370 places, 1553 transitions, 5311 flow [2023-08-24 06:37:16,560 INFO L124 PetriNetUnfolderBase]: 454/3213 cut-off events. [2023-08-24 06:37:16,561 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-24 06:37:16,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4384 conditions, 3213 events. 454/3213 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11839 event pairs, 0 based on Foata normal form. 0/2667 useless extension candidates. Maximal degree in co-relation 4241. Up to 92 conditions per place. [2023-08-24 06:37:16,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 1370 places, 1553 transitions, 5311 flow [2023-08-24 06:37:16,812 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1370 places, 1553 transitions, 5311 flow [2023-08-24 06:37:16,812 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:37:16,813 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1370 places, 1553 transitions, 5311 flow [2023-08-24 06:37:16,813 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1370 places, 1553 transitions, 5311 flow [2023-08-24 06:37:16,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1370 places, 1553 transitions, 5311 flow [2023-08-24 06:37:18,784 INFO L124 PetriNetUnfolderBase]: 454/3213 cut-off events. [2023-08-24 06:37:18,785 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-24 06:37:18,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4384 conditions, 3213 events. 454/3213 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 11839 event pairs, 0 based on Foata normal form. 0/2667 useless extension candidates. Maximal degree in co-relation 4241. Up to 92 conditions per place. [2023-08-24 06:37:19,748 INFO L119 LiptonReduction]: Number of co-enabled transitions 2200320 [2023-08-24 06:37:30,041 INFO L134 LiptonReduction]: Checked pairs total: 5554440 [2023-08-24 06:37:30,042 INFO L136 LiptonReduction]: Total number of compositions: 954 [2023-08-24 06:37:30,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:37:30,043 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:37:30,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:37:30,434 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:37:30,434 INFO L124 PetriNetUnfolderBase]: 401/1345 cut-off events. [2023-08-24 06:37:30,434 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-24 06:37:30,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:37:30,435 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:37:30,435 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:37:30,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:37:30,435 INFO L85 PathProgramCache]: Analyzing trace with hash -39228081, now seen corresponding path program 1 times [2023-08-24 06:37:30,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:37:30,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750978204] [2023-08-24 06:37:30,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:37:30,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:37:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:37:30,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:37:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:37:30,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:37:30,556 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:37:30,556 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:37:30,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-24 06:37:30,556 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:37:30,556 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:37:30,556 WARN L233 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:37:30,556 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2023-08-24 06:37:30,635 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:37:30,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1399 places, 1586 transitions, 5472 flow [2023-08-24 06:37:32,751 INFO L124 PetriNetUnfolderBase]: 464/3283 cut-off events. [2023-08-24 06:37:32,751 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-24 06:37:32,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4503 conditions, 3283 events. 464/3283 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12100 event pairs, 0 based on Foata normal form. 0/2725 useless extension candidates. Maximal degree in co-relation 4359. Up to 94 conditions per place. [2023-08-24 06:37:32,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 1399 places, 1586 transitions, 5472 flow [2023-08-24 06:37:33,043 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1399 places, 1586 transitions, 5472 flow [2023-08-24 06:37:33,043 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:37:33,043 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1399 places, 1586 transitions, 5472 flow [2023-08-24 06:37:33,043 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1399 places, 1586 transitions, 5472 flow [2023-08-24 06:37:33,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1399 places, 1586 transitions, 5472 flow [2023-08-24 06:37:35,303 INFO L124 PetriNetUnfolderBase]: 464/3283 cut-off events. [2023-08-24 06:37:35,304 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-24 06:37:35,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4503 conditions, 3283 events. 464/3283 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12100 event pairs, 0 based on Foata normal form. 0/2725 useless extension candidates. Maximal degree in co-relation 4359. Up to 94 conditions per place. [2023-08-24 06:37:36,121 INFO L119 LiptonReduction]: Number of co-enabled transitions 2297792 [2023-08-24 06:37:46,814 INFO L134 LiptonReduction]: Checked pairs total: 5795023 [2023-08-24 06:37:46,814 INFO L136 LiptonReduction]: Total number of compositions: 971 [2023-08-24 06:37:46,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:37:46,815 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:37:46,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:37:47,245 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:37:47,245 INFO L124 PetriNetUnfolderBase]: 364/1330 cut-off events. [2023-08-24 06:37:47,245 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-24 06:37:47,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:37:47,245 INFO L208 CegarLoopForPetriNet]: trace histogram [47, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:37:47,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:37:47,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:37:47,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1149858020, now seen corresponding path program 1 times [2023-08-24 06:37:47,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:37:47,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48131961] [2023-08-24 06:37:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:37:47,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:37:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:37:47,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:37:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:37:47,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:37:47,354 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:37:47,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:37:47,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-24 06:37:47,354 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:37:47,355 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:37:47,355 WARN L233 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:37:47,355 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2023-08-24 06:37:47,431 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:37:47,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1428 places, 1619 transitions, 5635 flow [2023-08-24 06:37:49,529 INFO L124 PetriNetUnfolderBase]: 474/3353 cut-off events. [2023-08-24 06:37:49,529 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-24 06:37:49,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4623 conditions, 3353 events. 474/3353 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12373 event pairs, 0 based on Foata normal form. 0/2783 useless extension candidates. Maximal degree in co-relation 4478. Up to 96 conditions per place. [2023-08-24 06:37:49,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 1428 places, 1619 transitions, 5635 flow [2023-08-24 06:37:49,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1428 places, 1619 transitions, 5635 flow [2023-08-24 06:37:49,873 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:37:49,874 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1428 places, 1619 transitions, 5635 flow [2023-08-24 06:37:49,874 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1428 places, 1619 transitions, 5635 flow [2023-08-24 06:37:49,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1428 places, 1619 transitions, 5635 flow [2023-08-24 06:37:52,296 INFO L124 PetriNetUnfolderBase]: 474/3353 cut-off events. [2023-08-24 06:37:52,296 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-24 06:37:52,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4623 conditions, 3353 events. 474/3353 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12373 event pairs, 0 based on Foata normal form. 0/2783 useless extension candidates. Maximal degree in co-relation 4478. Up to 96 conditions per place. [2023-08-24 06:37:53,331 INFO L119 LiptonReduction]: Number of co-enabled transitions 2397376 [2023-08-24 06:38:04,043 INFO L134 LiptonReduction]: Checked pairs total: 6037023 [2023-08-24 06:38:04,043 INFO L136 LiptonReduction]: Total number of compositions: 982 [2023-08-24 06:38:04,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:38:04,045 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:38:04,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:38:04,459 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:38:04,459 INFO L124 PetriNetUnfolderBase]: 372/1358 cut-off events. [2023-08-24 06:38:04,459 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-24 06:38:04,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:38:04,459 INFO L208 CegarLoopForPetriNet]: trace histogram [48, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 06:38:04,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:38:04,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:38:04,460 INFO L85 PathProgramCache]: Analyzing trace with hash 538984728, now seen corresponding path program 1 times [2023-08-24 06:38:04,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:38:04,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969980447] [2023-08-24 06:38:04,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:38:04,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:38:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:38:04,517 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:38:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:38:04,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:38:04,644 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:38:04,644 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:38:04,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-24 06:38:04,644 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:38:04,644 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:38:04,644 WARN L233 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:38:04,644 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2023-08-24 06:38:04,731 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:38:04,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1457 places, 1652 transitions, 5800 flow [2023-08-24 06:38:07,117 INFO L124 PetriNetUnfolderBase]: 484/3423 cut-off events. [2023-08-24 06:38:07,117 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2023-08-24 06:38:07,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4744 conditions, 3423 events. 484/3423 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12640 event pairs, 0 based on Foata normal form. 0/2841 useless extension candidates. Maximal degree in co-relation 4598. Up to 98 conditions per place. [2023-08-24 06:38:07,379 INFO L82 GeneralOperation]: Start removeDead. Operand has 1457 places, 1652 transitions, 5800 flow [2023-08-24 06:38:07,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1457 places, 1652 transitions, 5800 flow [2023-08-24 06:38:07,449 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:38:07,449 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1457 places, 1652 transitions, 5800 flow [2023-08-24 06:38:07,449 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1457 places, 1652 transitions, 5800 flow [2023-08-24 06:38:07,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1457 places, 1652 transitions, 5800 flow [2023-08-24 06:38:09,733 INFO L124 PetriNetUnfolderBase]: 484/3423 cut-off events. [2023-08-24 06:38:09,733 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2023-08-24 06:38:09,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4744 conditions, 3423 events. 484/3423 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12640 event pairs, 0 based on Foata normal form. 0/2841 useless extension candidates. Maximal degree in co-relation 4598. Up to 98 conditions per place. [2023-08-24 06:38:10,788 INFO L119 LiptonReduction]: Number of co-enabled transitions 2499072 [2023-08-24 06:38:21,790 INFO L134 LiptonReduction]: Checked pairs total: 6271145 [2023-08-24 06:38:21,790 INFO L136 LiptonReduction]: Total number of compositions: 1013 [2023-08-24 06:38:21,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:38:21,792 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:38:21,792 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:38:22,237 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:38:22,238 INFO L124 PetriNetUnfolderBase]: 380/1388 cut-off events. [2023-08-24 06:38:22,238 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2023-08-24 06:38:22,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:38:22,238 INFO L208 CegarLoopForPetriNet]: trace histogram [49, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:38:22,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:38:22,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:38:22,238 INFO L85 PathProgramCache]: Analyzing trace with hash 437996997, now seen corresponding path program 1 times [2023-08-24 06:38:22,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:38:22,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850226064] [2023-08-24 06:38:22,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:38:22,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:38:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:38:22,294 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:38:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:38:22,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:38:22,353 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:38:22,353 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:38:22,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-24 06:38:22,353 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:38:22,353 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:38:22,353 WARN L233 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:38:22,354 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2023-08-24 06:38:22,428 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:38:22,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1486 places, 1685 transitions, 5967 flow [2023-08-24 06:38:24,829 INFO L124 PetriNetUnfolderBase]: 494/3493 cut-off events. [2023-08-24 06:38:24,829 INFO L125 PetriNetUnfolderBase]: For 20776/20776 co-relation queries the response was YES. [2023-08-24 06:38:25,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4866 conditions, 3493 events. 494/3493 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12913 event pairs, 0 based on Foata normal form. 0/2899 useless extension candidates. Maximal degree in co-relation 4719. Up to 100 conditions per place. [2023-08-24 06:38:25,084 INFO L82 GeneralOperation]: Start removeDead. Operand has 1486 places, 1685 transitions, 5967 flow [2023-08-24 06:38:25,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1486 places, 1685 transitions, 5967 flow [2023-08-24 06:38:25,151 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:38:25,151 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1486 places, 1685 transitions, 5967 flow [2023-08-24 06:38:25,152 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1486 places, 1685 transitions, 5967 flow [2023-08-24 06:38:25,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1486 places, 1685 transitions, 5967 flow [2023-08-24 06:38:27,431 INFO L124 PetriNetUnfolderBase]: 494/3493 cut-off events. [2023-08-24 06:38:27,431 INFO L125 PetriNetUnfolderBase]: For 20776/20776 co-relation queries the response was YES. [2023-08-24 06:38:27,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4866 conditions, 3493 events. 494/3493 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 12913 event pairs, 0 based on Foata normal form. 0/2899 useless extension candidates. Maximal degree in co-relation 4719. Up to 100 conditions per place. [2023-08-24 06:38:28,693 INFO L119 LiptonReduction]: Number of co-enabled transitions 2602880 [2023-08-24 06:38:40,205 INFO L134 LiptonReduction]: Checked pairs total: 6528482 [2023-08-24 06:38:40,205 INFO L136 LiptonReduction]: Total number of compositions: 1024 [2023-08-24 06:38:40,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:38:40,206 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:38:40,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:38:40,681 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:38:40,681 INFO L124 PetriNetUnfolderBase]: 437/1465 cut-off events. [2023-08-24 06:38:40,682 INFO L125 PetriNetUnfolderBase]: For 20776/20776 co-relation queries the response was YES. [2023-08-24 06:38:40,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:38:40,682 INFO L208 CegarLoopForPetriNet]: trace histogram [50, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:38:40,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:38:40,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:38:40,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1254760475, now seen corresponding path program 1 times [2023-08-24 06:38:40,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:38:40,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003307472] [2023-08-24 06:38:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:38:40,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:38:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:38:40,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:38:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:38:40,803 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:38:40,803 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:38:40,803 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:38:40,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-24 06:38:40,803 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:38:40,804 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:38:40,804 WARN L233 ceAbstractionStarter]: 49 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:38:40,804 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 50 thread instances. [2023-08-24 06:38:40,891 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:38:40,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1515 places, 1718 transitions, 6136 flow [2023-08-24 06:38:43,358 INFO L124 PetriNetUnfolderBase]: 504/3563 cut-off events. [2023-08-24 06:38:43,359 INFO L125 PetriNetUnfolderBase]: For 22050/22050 co-relation queries the response was YES. [2023-08-24 06:38:43,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4989 conditions, 3563 events. 504/3563 cut-off events. For 22050/22050 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13157 event pairs, 0 based on Foata normal form. 0/2957 useless extension candidates. Maximal degree in co-relation 4841. Up to 102 conditions per place. [2023-08-24 06:38:43,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 1515 places, 1718 transitions, 6136 flow [2023-08-24 06:38:43,716 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1515 places, 1718 transitions, 6136 flow [2023-08-24 06:38:43,716 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:38:43,716 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1515 places, 1718 transitions, 6136 flow [2023-08-24 06:38:43,716 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1515 places, 1718 transitions, 6136 flow [2023-08-24 06:38:43,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1515 places, 1718 transitions, 6136 flow [2023-08-24 06:38:46,132 INFO L124 PetriNetUnfolderBase]: 504/3563 cut-off events. [2023-08-24 06:38:46,132 INFO L125 PetriNetUnfolderBase]: For 22050/22050 co-relation queries the response was YES. [2023-08-24 06:38:46,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4989 conditions, 3563 events. 504/3563 cut-off events. For 22050/22050 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13157 event pairs, 0 based on Foata normal form. 0/2957 useless extension candidates. Maximal degree in co-relation 4841. Up to 102 conditions per place. [2023-08-24 06:38:47,346 INFO L119 LiptonReduction]: Number of co-enabled transitions 2708800 [2023-08-24 06:38:58,807 INFO L134 LiptonReduction]: Checked pairs total: 6801329 [2023-08-24 06:38:58,807 INFO L136 LiptonReduction]: Total number of compositions: 1045 [2023-08-24 06:38:58,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:38:58,809 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:38:58,809 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:38:59,305 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:38:59,305 INFO L124 PetriNetUnfolderBase]: 446/1496 cut-off events. [2023-08-24 06:38:59,305 INFO L125 PetriNetUnfolderBase]: For 22050/22050 co-relation queries the response was YES. [2023-08-24 06:38:59,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:38:59,305 INFO L208 CegarLoopForPetriNet]: trace histogram [51, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:38:59,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:38:59,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:38:59,306 INFO L85 PathProgramCache]: Analyzing trace with hash 2677081, now seen corresponding path program 1 times [2023-08-24 06:38:59,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:38:59,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511898934] [2023-08-24 06:38:59,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:38:59,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:38:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:38:59,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:38:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:38:59,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:38:59,430 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:38:59,430 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:38:59,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-24 06:38:59,430 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:38:59,430 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:38:59,430 WARN L233 ceAbstractionStarter]: 50 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:38:59,430 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 51 thread instances. [2023-08-24 06:38:59,516 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:38:59,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1544 places, 1751 transitions, 6307 flow [2023-08-24 06:39:02,287 INFO L124 PetriNetUnfolderBase]: 514/3633 cut-off events. [2023-08-24 06:39:02,287 INFO L125 PetriNetUnfolderBase]: For 23375/23375 co-relation queries the response was YES. [2023-08-24 06:39:02,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5113 conditions, 3633 events. 514/3633 cut-off events. For 23375/23375 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13396 event pairs, 0 based on Foata normal form. 0/3015 useless extension candidates. Maximal degree in co-relation 4964. Up to 104 conditions per place. [2023-08-24 06:39:02,540 INFO L82 GeneralOperation]: Start removeDead. Operand has 1544 places, 1751 transitions, 6307 flow [2023-08-24 06:39:02,624 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1544 places, 1751 transitions, 6307 flow [2023-08-24 06:39:02,625 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:39:02,625 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1544 places, 1751 transitions, 6307 flow [2023-08-24 06:39:02,625 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1544 places, 1751 transitions, 6307 flow [2023-08-24 06:39:02,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1544 places, 1751 transitions, 6307 flow [2023-08-24 06:39:05,229 INFO L124 PetriNetUnfolderBase]: 514/3633 cut-off events. [2023-08-24 06:39:05,229 INFO L125 PetriNetUnfolderBase]: For 23375/23375 co-relation queries the response was YES. [2023-08-24 06:39:05,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5113 conditions, 3633 events. 514/3633 cut-off events. For 23375/23375 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13396 event pairs, 0 based on Foata normal form. 0/3015 useless extension candidates. Maximal degree in co-relation 4964. Up to 104 conditions per place. [2023-08-24 06:39:06,406 INFO L119 LiptonReduction]: Number of co-enabled transitions 2816832 [2023-08-24 06:39:18,185 INFO L134 LiptonReduction]: Checked pairs total: 7035809 [2023-08-24 06:39:18,186 INFO L136 LiptonReduction]: Total number of compositions: 1065 [2023-08-24 06:39:18,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:39:18,187 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:39:18,187 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:39:18,705 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:39:18,705 INFO L124 PetriNetUnfolderBase]: 455/1526 cut-off events. [2023-08-24 06:39:18,705 INFO L125 PetriNetUnfolderBase]: For 23375/23375 co-relation queries the response was YES. [2023-08-24 06:39:18,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:39:18,705 INFO L208 CegarLoopForPetriNet]: trace histogram [52, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:18,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:39:18,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:39:18,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1317789340, now seen corresponding path program 1 times [2023-08-24 06:39:18,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:39:18,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647300282] [2023-08-24 06:39:18,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:39:18,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:39:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:39:18,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:39:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:39:18,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:39:18,833 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:39:18,833 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:39:18,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-24 06:39:18,834 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:39:18,834 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:39:18,834 WARN L233 ceAbstractionStarter]: 51 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:39:18,834 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 52 thread instances. [2023-08-24 06:39:18,913 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:39:18,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1573 places, 1784 transitions, 6480 flow [2023-08-24 06:39:21,605 INFO L124 PetriNetUnfolderBase]: 524/3703 cut-off events. [2023-08-24 06:39:21,606 INFO L125 PetriNetUnfolderBase]: For 24752/24752 co-relation queries the response was YES. [2023-08-24 06:39:21,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5238 conditions, 3703 events. 524/3703 cut-off events. For 24752/24752 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13675 event pairs, 0 based on Foata normal form. 0/3073 useless extension candidates. Maximal degree in co-relation 5088. Up to 106 conditions per place. [2023-08-24 06:39:21,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 1573 places, 1784 transitions, 6480 flow [2023-08-24 06:39:21,996 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1573 places, 1784 transitions, 6480 flow [2023-08-24 06:39:21,996 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:39:21,996 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1573 places, 1784 transitions, 6480 flow [2023-08-24 06:39:21,996 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1573 places, 1784 transitions, 6480 flow [2023-08-24 06:39:21,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1573 places, 1784 transitions, 6480 flow [2023-08-24 06:39:24,669 INFO L124 PetriNetUnfolderBase]: 524/3703 cut-off events. [2023-08-24 06:39:24,670 INFO L125 PetriNetUnfolderBase]: For 24752/24752 co-relation queries the response was YES. [2023-08-24 06:39:24,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5238 conditions, 3703 events. 524/3703 cut-off events. For 24752/24752 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13675 event pairs, 0 based on Foata normal form. 0/3073 useless extension candidates. Maximal degree in co-relation 5088. Up to 106 conditions per place. [2023-08-24 06:39:25,937 INFO L119 LiptonReduction]: Number of co-enabled transitions 2926976 [2023-08-24 06:39:38,101 INFO L134 LiptonReduction]: Checked pairs total: 7358444 [2023-08-24 06:39:38,101 INFO L136 LiptonReduction]: Total number of compositions: 1088 [2023-08-24 06:39:38,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:39:38,102 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:39:38,102 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:39:38,641 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:39:38,641 INFO L124 PetriNetUnfolderBase]: 464/1556 cut-off events. [2023-08-24 06:39:38,641 INFO L125 PetriNetUnfolderBase]: For 24752/24752 co-relation queries the response was YES. [2023-08-24 06:39:38,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:39:38,641 INFO L208 CegarLoopForPetriNet]: trace histogram [53, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:38,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:39:38,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:39:38,642 INFO L85 PathProgramCache]: Analyzing trace with hash -239361257, now seen corresponding path program 1 times [2023-08-24 06:39:38,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:39:38,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245825135] [2023-08-24 06:39:38,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:39:38,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:39:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:39:38,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:39:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:39:38,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:39:38,781 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:39:38,781 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:39:38,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-24 06:39:38,781 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:39:38,781 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:39:38,782 WARN L233 ceAbstractionStarter]: 52 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:39:38,782 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 53 thread instances. [2023-08-24 06:39:38,874 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:39:38,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1602 places, 1817 transitions, 6655 flow [2023-08-24 06:39:41,641 INFO L124 PetriNetUnfolderBase]: 534/3773 cut-off events. [2023-08-24 06:39:41,641 INFO L125 PetriNetUnfolderBase]: For 26182/26182 co-relation queries the response was YES. [2023-08-24 06:39:41,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5364 conditions, 3773 events. 534/3773 cut-off events. For 26182/26182 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13952 event pairs, 0 based on Foata normal form. 0/3131 useless extension candidates. Maximal degree in co-relation 5213. Up to 108 conditions per place. [2023-08-24 06:39:41,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 1602 places, 1817 transitions, 6655 flow [2023-08-24 06:39:42,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1602 places, 1817 transitions, 6655 flow [2023-08-24 06:39:42,045 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:39:42,045 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1602 places, 1817 transitions, 6655 flow [2023-08-24 06:39:42,045 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1602 places, 1817 transitions, 6655 flow [2023-08-24 06:39:42,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1602 places, 1817 transitions, 6655 flow [2023-08-24 06:39:44,770 INFO L124 PetriNetUnfolderBase]: 534/3773 cut-off events. [2023-08-24 06:39:44,770 INFO L125 PetriNetUnfolderBase]: For 26182/26182 co-relation queries the response was YES. [2023-08-24 06:39:45,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5364 conditions, 3773 events. 534/3773 cut-off events. For 26182/26182 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 13952 event pairs, 0 based on Foata normal form. 0/3131 useless extension candidates. Maximal degree in co-relation 5213. Up to 108 conditions per place. [2023-08-24 06:39:46,089 INFO L119 LiptonReduction]: Number of co-enabled transitions 3039232 [2023-08-24 06:39:58,299 INFO L134 LiptonReduction]: Checked pairs total: 7616342 [2023-08-24 06:39:58,299 INFO L136 LiptonReduction]: Total number of compositions: 1104 [2023-08-24 06:39:58,300 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:39:58,300 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:39:58,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:39:58,927 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:39:58,927 INFO L124 PetriNetUnfolderBase]: 473/1586 cut-off events. [2023-08-24 06:39:58,927 INFO L125 PetriNetUnfolderBase]: For 26182/26182 co-relation queries the response was YES. [2023-08-24 06:39:58,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:39:58,927 INFO L208 CegarLoopForPetriNet]: trace histogram [54, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:58,928 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:39:58,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:39:58,928 INFO L85 PathProgramCache]: Analyzing trace with hash -886367354, now seen corresponding path program 1 times [2023-08-24 06:39:58,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:39:58,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202346954] [2023-08-24 06:39:58,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:39:58,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:39:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:39:58,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:39:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:39:59,065 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:39:59,065 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:39:59,065 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:39:59,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-24 06:39:59,065 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:39:59,065 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:39:59,066 WARN L233 ceAbstractionStarter]: 53 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:39:59,066 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 54 thread instances. [2023-08-24 06:39:59,149 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:39:59,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1631 places, 1850 transitions, 6832 flow [2023-08-24 06:40:01,975 INFO L124 PetriNetUnfolderBase]: 544/3843 cut-off events. [2023-08-24 06:40:01,975 INFO L125 PetriNetUnfolderBase]: For 27666/27666 co-relation queries the response was YES. [2023-08-24 06:40:02,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5491 conditions, 3843 events. 544/3843 cut-off events. For 27666/27666 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 14163 event pairs, 0 based on Foata normal form. 0/3189 useless extension candidates. Maximal degree in co-relation 5339. Up to 110 conditions per place. [2023-08-24 06:40:02,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 1631 places, 1850 transitions, 6832 flow [2023-08-24 06:40:02,417 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1631 places, 1850 transitions, 6832 flow [2023-08-24 06:40:02,417 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:40:02,417 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1631 places, 1850 transitions, 6832 flow [2023-08-24 06:40:02,417 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1631 places, 1850 transitions, 6832 flow [2023-08-24 06:40:02,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1631 places, 1850 transitions, 6832 flow [2023-08-24 06:40:05,738 INFO L124 PetriNetUnfolderBase]: 544/3843 cut-off events. [2023-08-24 06:40:05,738 INFO L125 PetriNetUnfolderBase]: For 27666/27666 co-relation queries the response was YES. [2023-08-24 06:40:06,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5491 conditions, 3843 events. 544/3843 cut-off events. For 27666/27666 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 14163 event pairs, 0 based on Foata normal form. 0/3189 useless extension candidates. Maximal degree in co-relation 5339. Up to 110 conditions per place. [2023-08-24 06:40:07,135 INFO L119 LiptonReduction]: Number of co-enabled transitions 3153600 [2023-08-24 06:40:19,610 INFO L134 LiptonReduction]: Checked pairs total: 7942002 [2023-08-24 06:40:19,610 INFO L136 LiptonReduction]: Total number of compositions: 1123 [2023-08-24 06:40:19,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:40:19,611 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:40:19,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:40:20,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:40:20,196 INFO L124 PetriNetUnfolderBase]: 482/1616 cut-off events. [2023-08-24 06:40:20,197 INFO L125 PetriNetUnfolderBase]: For 27666/27666 co-relation queries the response was YES. [2023-08-24 06:40:20,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:40:20,197 INFO L208 CegarLoopForPetriNet]: trace histogram [55, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:20,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:40:20,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:40:20,197 INFO L85 PathProgramCache]: Analyzing trace with hash -712090835, now seen corresponding path program 1 times [2023-08-24 06:40:20,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:40:20,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400260689] [2023-08-24 06:40:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:40:20,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:40:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:40:20,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:40:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:40:20,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:40:20,336 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:40:20,336 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:40:20,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-08-24 06:40:20,336 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:40:20,336 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:40:20,336 WARN L233 ceAbstractionStarter]: 54 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:40:20,336 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 55 thread instances. [2023-08-24 06:40:20,435 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:40:20,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1660 places, 1883 transitions, 7011 flow [2023-08-24 06:40:23,504 INFO L124 PetriNetUnfolderBase]: 554/3913 cut-off events. [2023-08-24 06:40:23,504 INFO L125 PetriNetUnfolderBase]: For 29205/29205 co-relation queries the response was YES. [2023-08-24 06:40:23,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5619 conditions, 3913 events. 554/3913 cut-off events. For 29205/29205 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 14353 event pairs, 0 based on Foata normal form. 0/3247 useless extension candidates. Maximal degree in co-relation 5466. Up to 112 conditions per place. [2023-08-24 06:40:23,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 1660 places, 1883 transitions, 7011 flow [2023-08-24 06:40:23,945 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1660 places, 1883 transitions, 7011 flow [2023-08-24 06:40:23,945 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:40:23,946 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1660 places, 1883 transitions, 7011 flow [2023-08-24 06:40:23,946 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1660 places, 1883 transitions, 7011 flow [2023-08-24 06:40:23,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1660 places, 1883 transitions, 7011 flow [2023-08-24 06:40:26,950 INFO L124 PetriNetUnfolderBase]: 554/3913 cut-off events. [2023-08-24 06:40:26,950 INFO L125 PetriNetUnfolderBase]: For 29205/29205 co-relation queries the response was YES. [2023-08-24 06:40:27,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5619 conditions, 3913 events. 554/3913 cut-off events. For 29205/29205 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 14353 event pairs, 0 based on Foata normal form. 0/3247 useless extension candidates. Maximal degree in co-relation 5466. Up to 112 conditions per place. [2023-08-24 06:40:28,363 INFO L119 LiptonReduction]: Number of co-enabled transitions 3270080 [2023-08-24 06:40:41,217 INFO L134 LiptonReduction]: Checked pairs total: 8200457 [2023-08-24 06:40:41,217 INFO L136 LiptonReduction]: Total number of compositions: 1143 [2023-08-24 06:40:41,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:40:41,218 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:40:41,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:40:41,819 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:40:41,819 INFO L124 PetriNetUnfolderBase]: 491/1646 cut-off events. [2023-08-24 06:40:41,819 INFO L125 PetriNetUnfolderBase]: For 29205/29205 co-relation queries the response was YES. [2023-08-24 06:40:41,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:40:41,819 INFO L208 CegarLoopForPetriNet]: trace histogram [56, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:41,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:40:41,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:40:41,819 INFO L85 PathProgramCache]: Analyzing trace with hash -231647327, now seen corresponding path program 1 times [2023-08-24 06:40:41,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:40:41,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039992693] [2023-08-24 06:40:41,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:40:41,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:40:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:40:41,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:40:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:40:41,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:40:41,965 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:40:41,965 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:40:41,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-08-24 06:40:41,966 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:40:41,966 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:40:41,966 WARN L233 ceAbstractionStarter]: 55 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:40:41,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 56 thread instances. [2023-08-24 06:40:42,055 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:40:42,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1689 places, 1916 transitions, 7192 flow [2023-08-24 06:40:45,240 INFO L124 PetriNetUnfolderBase]: 564/3983 cut-off events. [2023-08-24 06:40:45,240 INFO L125 PetriNetUnfolderBase]: For 30800/30800 co-relation queries the response was YES. [2023-08-24 06:40:45,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5748 conditions, 3983 events. 564/3983 cut-off events. For 30800/30800 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 14613 event pairs, 0 based on Foata normal form. 0/3305 useless extension candidates. Maximal degree in co-relation 5594. Up to 114 conditions per place. [2023-08-24 06:40:45,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 1689 places, 1916 transitions, 7192 flow [2023-08-24 06:40:45,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1689 places, 1916 transitions, 7192 flow [2023-08-24 06:40:45,643 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:40:45,643 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1689 places, 1916 transitions, 7192 flow [2023-08-24 06:40:45,643 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1689 places, 1916 transitions, 7192 flow [2023-08-24 06:40:45,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1689 places, 1916 transitions, 7192 flow [2023-08-24 06:40:48,720 INFO L124 PetriNetUnfolderBase]: 564/3983 cut-off events. [2023-08-24 06:40:48,720 INFO L125 PetriNetUnfolderBase]: For 30800/30800 co-relation queries the response was YES. [2023-08-24 06:40:49,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5748 conditions, 3983 events. 564/3983 cut-off events. For 30800/30800 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 14613 event pairs, 0 based on Foata normal form. 0/3305 useless extension candidates. Maximal degree in co-relation 5594. Up to 114 conditions per place. [2023-08-24 06:40:50,144 INFO L119 LiptonReduction]: Number of co-enabled transitions 3388672 [2023-08-24 06:41:03,485 INFO L134 LiptonReduction]: Checked pairs total: 9541250 [2023-08-24 06:41:03,485 INFO L136 LiptonReduction]: Total number of compositions: 1167 [2023-08-24 06:41:03,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:41:03,486 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:41:03,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:41:04,152 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:41:04,152 INFO L124 PetriNetUnfolderBase]: 444/1620 cut-off events. [2023-08-24 06:41:04,152 INFO L125 PetriNetUnfolderBase]: For 30800/30800 co-relation queries the response was YES. [2023-08-24 06:41:04,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:41:04,153 INFO L208 CegarLoopForPetriNet]: trace histogram [57, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:41:04,153 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:41:04,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:41:04,153 INFO L85 PathProgramCache]: Analyzing trace with hash 57662743, now seen corresponding path program 1 times [2023-08-24 06:41:04,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:41:04,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907901699] [2023-08-24 06:41:04,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:41:04,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:41:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:41:04,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:41:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:41:04,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:41:04,301 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:41:04,301 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:41:04,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-08-24 06:41:04,301 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:41:04,302 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:41:04,302 WARN L233 ceAbstractionStarter]: 56 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:41:04,302 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 57 thread instances. [2023-08-24 06:41:04,399 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:41:04,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1718 places, 1949 transitions, 7375 flow [2023-08-24 06:41:07,643 INFO L124 PetriNetUnfolderBase]: 574/4053 cut-off events. [2023-08-24 06:41:07,644 INFO L125 PetriNetUnfolderBase]: For 32452/32452 co-relation queries the response was YES. [2023-08-24 06:41:07,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5878 conditions, 4053 events. 574/4053 cut-off events. For 32452/32452 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 14924 event pairs, 0 based on Foata normal form. 0/3363 useless extension candidates. Maximal degree in co-relation 5723. Up to 116 conditions per place. [2023-08-24 06:41:07,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 1718 places, 1949 transitions, 7375 flow [2023-08-24 06:41:08,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1718 places, 1949 transitions, 7375 flow [2023-08-24 06:41:08,075 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:41:08,075 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1718 places, 1949 transitions, 7375 flow [2023-08-24 06:41:08,075 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1718 places, 1949 transitions, 7375 flow [2023-08-24 06:41:08,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1718 places, 1949 transitions, 7375 flow [2023-08-24 06:41:11,233 INFO L124 PetriNetUnfolderBase]: 574/4053 cut-off events. [2023-08-24 06:41:11,233 INFO L125 PetriNetUnfolderBase]: For 32452/32452 co-relation queries the response was YES. [2023-08-24 06:41:11,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5878 conditions, 4053 events. 574/4053 cut-off events. For 32452/32452 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 14924 event pairs, 0 based on Foata normal form. 0/3363 useless extension candidates. Maximal degree in co-relation 5723. Up to 116 conditions per place. [2023-08-24 06:41:12,739 INFO L119 LiptonReduction]: Number of co-enabled transitions 3509376 [2023-08-24 06:41:26,353 INFO L134 LiptonReduction]: Checked pairs total: 9759171 [2023-08-24 06:41:26,353 INFO L136 LiptonReduction]: Total number of compositions: 1184 [2023-08-24 06:41:26,354 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:41:26,354 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:41:26,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:41:27,122 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:41:27,123 INFO L124 PetriNetUnfolderBase]: 509/1706 cut-off events. [2023-08-24 06:41:27,123 INFO L125 PetriNetUnfolderBase]: For 32452/32452 co-relation queries the response was YES. [2023-08-24 06:41:27,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:41:27,123 INFO L208 CegarLoopForPetriNet]: trace histogram [58, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:41:27,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:41:27,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:41:27,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2141851208, now seen corresponding path program 1 times [2023-08-24 06:41:27,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:41:27,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356820324] [2023-08-24 06:41:27,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:41:27,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:41:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:41:27,203 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:41:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:41:27,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:41:27,284 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:41:27,284 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:41:27,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-08-24 06:41:27,284 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:41:27,284 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:41:27,284 WARN L233 ceAbstractionStarter]: 57 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:41:27,284 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 58 thread instances. [2023-08-24 06:41:27,384 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:41:27,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1747 places, 1982 transitions, 7560 flow [2023-08-24 06:41:30,764 INFO L124 PetriNetUnfolderBase]: 584/4123 cut-off events. [2023-08-24 06:41:30,764 INFO L125 PetriNetUnfolderBase]: For 34162/34162 co-relation queries the response was YES. [2023-08-24 06:41:31,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6009 conditions, 4123 events. 584/4123 cut-off events. For 34162/34162 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 15127 event pairs, 0 based on Foata normal form. 0/3421 useless extension candidates. Maximal degree in co-relation 5853. Up to 118 conditions per place. [2023-08-24 06:41:31,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 1747 places, 1982 transitions, 7560 flow [2023-08-24 06:41:31,215 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1747 places, 1982 transitions, 7560 flow [2023-08-24 06:41:31,215 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:41:31,215 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1747 places, 1982 transitions, 7560 flow [2023-08-24 06:41:31,215 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1747 places, 1982 transitions, 7560 flow [2023-08-24 06:41:31,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1747 places, 1982 transitions, 7560 flow [2023-08-24 06:41:34,533 INFO L124 PetriNetUnfolderBase]: 584/4123 cut-off events. [2023-08-24 06:41:34,533 INFO L125 PetriNetUnfolderBase]: For 34162/34162 co-relation queries the response was YES. [2023-08-24 06:41:34,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6009 conditions, 4123 events. 584/4123 cut-off events. For 34162/34162 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 15127 event pairs, 0 based on Foata normal form. 0/3421 useless extension candidates. Maximal degree in co-relation 5853. Up to 118 conditions per place. [2023-08-24 06:41:36,214 INFO L119 LiptonReduction]: Number of co-enabled transitions 3632192 [2023-08-24 06:41:50,063 INFO L134 LiptonReduction]: Checked pairs total: 10214905 [2023-08-24 06:41:50,063 INFO L136 LiptonReduction]: Total number of compositions: 1210 [2023-08-24 06:41:50,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:41:50,065 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:41:50,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:41:50,737 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:41:50,737 INFO L124 PetriNetUnfolderBase]: 518/1736 cut-off events. [2023-08-24 06:41:50,737 INFO L125 PetriNetUnfolderBase]: For 34162/34162 co-relation queries the response was YES. [2023-08-24 06:41:50,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:41:50,737 INFO L208 CegarLoopForPetriNet]: trace histogram [59, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:41:50,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:41:50,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:41:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash -108933293, now seen corresponding path program 1 times [2023-08-24 06:41:50,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:41:50,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864091428] [2023-08-24 06:41:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:41:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:41:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:41:50,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:41:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:41:50,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:41:50,896 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:41:50,896 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:41:50,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-08-24 06:41:50,896 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:41:50,896 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:41:50,896 WARN L233 ceAbstractionStarter]: 58 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:41:50,896 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 59 thread instances. [2023-08-24 06:41:50,997 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:41:51,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1776 places, 2015 transitions, 7747 flow [2023-08-24 06:41:54,507 INFO L124 PetriNetUnfolderBase]: 594/4193 cut-off events. [2023-08-24 06:41:54,507 INFO L125 PetriNetUnfolderBase]: For 35931/35931 co-relation queries the response was YES. [2023-08-24 06:41:54,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6141 conditions, 4193 events. 594/4193 cut-off events. For 35931/35931 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 15417 event pairs, 0 based on Foata normal form. 0/3479 useless extension candidates. Maximal degree in co-relation 5984. Up to 120 conditions per place. [2023-08-24 06:41:54,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 1776 places, 2015 transitions, 7747 flow [2023-08-24 06:41:55,018 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1776 places, 2015 transitions, 7747 flow [2023-08-24 06:41:55,018 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:41:55,019 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1776 places, 2015 transitions, 7747 flow [2023-08-24 06:41:55,019 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1776 places, 2015 transitions, 7747 flow [2023-08-24 06:41:55,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1776 places, 2015 transitions, 7747 flow [2023-08-24 06:41:58,615 INFO L124 PetriNetUnfolderBase]: 594/4193 cut-off events. [2023-08-24 06:41:58,615 INFO L125 PetriNetUnfolderBase]: For 35931/35931 co-relation queries the response was YES. [2023-08-24 06:41:58,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6141 conditions, 4193 events. 594/4193 cut-off events. For 35931/35931 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 15417 event pairs, 0 based on Foata normal form. 0/3479 useless extension candidates. Maximal degree in co-relation 5984. Up to 120 conditions per place. [2023-08-24 06:42:00,203 INFO L119 LiptonReduction]: Number of co-enabled transitions 3757120 [2023-08-24 06:42:14,075 INFO L134 LiptonReduction]: Checked pairs total: 9409736 [2023-08-24 06:42:14,075 INFO L136 LiptonReduction]: Total number of compositions: 1226 [2023-08-24 06:42:14,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:42:14,076 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:42:14,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:42:14,801 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:42:14,802 INFO L124 PetriNetUnfolderBase]: 468/1707 cut-off events. [2023-08-24 06:42:14,802 INFO L125 PetriNetUnfolderBase]: For 35931/35931 co-relation queries the response was YES. [2023-08-24 06:42:14,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:42:14,802 INFO L208 CegarLoopForPetriNet]: trace histogram [60, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:42:14,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:42:14,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:42:14,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1830379150, now seen corresponding path program 1 times [2023-08-24 06:42:14,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:42:14,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502208656] [2023-08-24 06:42:14,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:42:14,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:42:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:42:14,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:42:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:42:14,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:42:14,975 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:42:14,975 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:42:14,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-08-24 06:42:14,976 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:42:14,976 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:42:14,976 WARN L233 ceAbstractionStarter]: 59 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:42:14,976 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 60 thread instances. [2023-08-24 06:42:15,077 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:42:15,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1805 places, 2048 transitions, 7936 flow [2023-08-24 06:42:18,627 INFO L124 PetriNetUnfolderBase]: 604/4263 cut-off events. [2023-08-24 06:42:18,627 INFO L125 PetriNetUnfolderBase]: For 37760/37760 co-relation queries the response was YES. [2023-08-24 06:42:19,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6274 conditions, 4263 events. 604/4263 cut-off events. For 37760/37760 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 15672 event pairs, 0 based on Foata normal form. 0/3537 useless extension candidates. Maximal degree in co-relation 6116. Up to 122 conditions per place. [2023-08-24 06:42:19,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 1805 places, 2048 transitions, 7936 flow [2023-08-24 06:42:19,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1805 places, 2048 transitions, 7936 flow [2023-08-24 06:42:19,148 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:42:19,148 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1805 places, 2048 transitions, 7936 flow [2023-08-24 06:42:19,149 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1805 places, 2048 transitions, 7936 flow [2023-08-24 06:42:19,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1805 places, 2048 transitions, 7936 flow [2023-08-24 06:42:22,883 INFO L124 PetriNetUnfolderBase]: 604/4263 cut-off events. [2023-08-24 06:42:22,884 INFO L125 PetriNetUnfolderBase]: For 37760/37760 co-relation queries the response was YES. [2023-08-24 06:42:23,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6274 conditions, 4263 events. 604/4263 cut-off events. For 37760/37760 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 15672 event pairs, 0 based on Foata normal form. 0/3537 useless extension candidates. Maximal degree in co-relation 6116. Up to 122 conditions per place. [2023-08-24 06:42:24,505 INFO L119 LiptonReduction]: Number of co-enabled transitions 3884160 [2023-08-24 06:42:38,766 INFO L134 LiptonReduction]: Checked pairs total: 9767753 [2023-08-24 06:42:38,766 INFO L136 LiptonReduction]: Total number of compositions: 1238 [2023-08-24 06:42:38,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:42:38,768 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:42:38,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:42:39,479 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:42:39,479 INFO L124 PetriNetUnfolderBase]: 476/1734 cut-off events. [2023-08-24 06:42:39,479 INFO L125 PetriNetUnfolderBase]: For 37760/37760 co-relation queries the response was YES. [2023-08-24 06:42:39,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:42:39,479 INFO L208 CegarLoopForPetriNet]: trace histogram [61, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:42:39,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:42:39,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:42:39,480 INFO L85 PathProgramCache]: Analyzing trace with hash -992264620, now seen corresponding path program 1 times [2023-08-24 06:42:39,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:42:39,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927931594] [2023-08-24 06:42:39,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:42:39,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:42:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:42:39,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:42:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:42:39,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:42:39,688 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:42:39,688 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:42:39,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-08-24 06:42:39,688 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:42:39,688 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:42:39,689 WARN L233 ceAbstractionStarter]: 60 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:42:39,689 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 61 thread instances. [2023-08-24 06:42:39,792 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:42:39,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1834 places, 2081 transitions, 8127 flow [2023-08-24 06:42:43,524 INFO L124 PetriNetUnfolderBase]: 614/4333 cut-off events. [2023-08-24 06:42:43,524 INFO L125 PetriNetUnfolderBase]: For 39650/39650 co-relation queries the response was YES. [2023-08-24 06:42:43,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6408 conditions, 4333 events. 614/4333 cut-off events. For 39650/39650 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 15884 event pairs, 0 based on Foata normal form. 0/3595 useless extension candidates. Maximal degree in co-relation 6249. Up to 124 conditions per place. [2023-08-24 06:42:43,935 INFO L82 GeneralOperation]: Start removeDead. Operand has 1834 places, 2081 transitions, 8127 flow [2023-08-24 06:42:44,046 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1834 places, 2081 transitions, 8127 flow [2023-08-24 06:42:44,046 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:42:44,047 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1834 places, 2081 transitions, 8127 flow [2023-08-24 06:42:44,047 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1834 places, 2081 transitions, 8127 flow [2023-08-24 06:42:44,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1834 places, 2081 transitions, 8127 flow [2023-08-24 06:42:47,899 INFO L124 PetriNetUnfolderBase]: 614/4333 cut-off events. [2023-08-24 06:42:47,900 INFO L125 PetriNetUnfolderBase]: For 39650/39650 co-relation queries the response was YES. [2023-08-24 06:42:48,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6408 conditions, 4333 events. 614/4333 cut-off events. For 39650/39650 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 15884 event pairs, 0 based on Foata normal form. 0/3595 useless extension candidates. Maximal degree in co-relation 6249. Up to 124 conditions per place. [2023-08-24 06:42:49,912 INFO L119 LiptonReduction]: Number of co-enabled transitions 4013312 [2023-08-24 06:43:05,127 INFO L134 LiptonReduction]: Checked pairs total: 10089811 [2023-08-24 06:43:05,128 INFO L136 LiptonReduction]: Total number of compositions: 1259 [2023-08-24 06:43:05,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:43:05,129 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:43:05,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:43:05,905 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:43:05,906 INFO L124 PetriNetUnfolderBase]: 484/1765 cut-off events. [2023-08-24 06:43:05,906 INFO L125 PetriNetUnfolderBase]: For 39650/39650 co-relation queries the response was YES. [2023-08-24 06:43:05,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:43:05,906 INFO L208 CegarLoopForPetriNet]: trace histogram [62, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:43:05,906 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:43:05,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:43:05,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1585075486, now seen corresponding path program 1 times [2023-08-24 06:43:05,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:43:05,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278349313] [2023-08-24 06:43:05,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:43:05,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:43:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:43:05,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:43:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:43:06,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:43:06,139 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:43:06,139 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:43:06,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-08-24 06:43:06,139 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:43:06,139 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:43:06,139 WARN L233 ceAbstractionStarter]: 61 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:43:06,140 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 62 thread instances. [2023-08-24 06:43:06,232 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:43:06,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1863 places, 2114 transitions, 8320 flow [2023-08-24 06:43:10,464 INFO L124 PetriNetUnfolderBase]: 624/4403 cut-off events. [2023-08-24 06:43:10,464 INFO L125 PetriNetUnfolderBase]: For 41602/41602 co-relation queries the response was YES. [2023-08-24 06:43:10,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6543 conditions, 4403 events. 624/4403 cut-off events. For 41602/41602 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 16178 event pairs, 0 based on Foata normal form. 0/3653 useless extension candidates. Maximal degree in co-relation 6383. Up to 126 conditions per place. [2023-08-24 06:43:10,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 1863 places, 2114 transitions, 8320 flow [2023-08-24 06:43:11,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1863 places, 2114 transitions, 8320 flow [2023-08-24 06:43:11,037 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:43:11,037 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1863 places, 2114 transitions, 8320 flow [2023-08-24 06:43:11,038 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1863 places, 2114 transitions, 8320 flow [2023-08-24 06:43:11,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1863 places, 2114 transitions, 8320 flow [2023-08-24 06:43:15,129 INFO L124 PetriNetUnfolderBase]: 624/4403 cut-off events. [2023-08-24 06:43:15,129 INFO L125 PetriNetUnfolderBase]: For 41602/41602 co-relation queries the response was YES. [2023-08-24 06:43:15,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6543 conditions, 4403 events. 624/4403 cut-off events. For 41602/41602 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 16178 event pairs, 0 based on Foata normal form. 0/3653 useless extension candidates. Maximal degree in co-relation 6383. Up to 126 conditions per place. [2023-08-24 06:43:16,902 INFO L119 LiptonReduction]: Number of co-enabled transitions 4144576 [2023-08-24 06:43:31,945 INFO L134 LiptonReduction]: Checked pairs total: 10500423 [2023-08-24 06:43:31,946 INFO L136 LiptonReduction]: Total number of compositions: 1294 [2023-08-24 06:43:31,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:43:31,947 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:43:31,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:43:32,811 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:43:32,812 INFO L124 PetriNetUnfolderBase]: 554/1856 cut-off events. [2023-08-24 06:43:32,812 INFO L125 PetriNetUnfolderBase]: For 41602/41602 co-relation queries the response was YES. [2023-08-24 06:43:32,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:43:32,812 INFO L208 CegarLoopForPetriNet]: trace histogram [63, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:43:32,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:43:32,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:43:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1021912559, now seen corresponding path program 1 times [2023-08-24 06:43:32,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:43:32,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341226674] [2023-08-24 06:43:32,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:43:32,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:43:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:43:32,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:43:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:43:32,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:43:32,994 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:43:32,994 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:43:32,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-08-24 06:43:32,995 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:43:32,995 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:43:32,995 WARN L233 ceAbstractionStarter]: 62 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:43:32,995 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 63 thread instances. [2023-08-24 06:43:33,103 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:43:33,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1892 places, 2147 transitions, 8515 flow [2023-08-24 06:43:37,145 INFO L124 PetriNetUnfolderBase]: 634/4473 cut-off events. [2023-08-24 06:43:37,145 INFO L125 PetriNetUnfolderBase]: For 43617/43617 co-relation queries the response was YES. [2023-08-24 06:43:37,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6679 conditions, 4473 events. 634/4473 cut-off events. For 43617/43617 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 16455 event pairs, 0 based on Foata normal form. 0/3711 useless extension candidates. Maximal degree in co-relation 6518. Up to 128 conditions per place. [2023-08-24 06:43:37,576 INFO L82 GeneralOperation]: Start removeDead. Operand has 1892 places, 2147 transitions, 8515 flow [2023-08-24 06:43:37,684 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1892 places, 2147 transitions, 8515 flow [2023-08-24 06:43:37,684 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:43:37,684 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1892 places, 2147 transitions, 8515 flow [2023-08-24 06:43:37,684 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1892 places, 2147 transitions, 8515 flow [2023-08-24 06:43:37,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1892 places, 2147 transitions, 8515 flow [2023-08-24 06:43:41,621 INFO L124 PetriNetUnfolderBase]: 634/4473 cut-off events. [2023-08-24 06:43:41,622 INFO L125 PetriNetUnfolderBase]: For 43617/43617 co-relation queries the response was YES. [2023-08-24 06:43:42,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6679 conditions, 4473 events. 634/4473 cut-off events. For 43617/43617 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 16455 event pairs, 0 based on Foata normal form. 0/3711 useless extension candidates. Maximal degree in co-relation 6518. Up to 128 conditions per place. [2023-08-24 06:43:43,679 INFO L119 LiptonReduction]: Number of co-enabled transitions 4277952 [2023-08-24 06:43:58,945 INFO L134 LiptonReduction]: Checked pairs total: 11941431 [2023-08-24 06:43:58,946 INFO L136 LiptonReduction]: Total number of compositions: 1310 [2023-08-24 06:43:58,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 06:43:58,947 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;@1162e7ba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 06:43:58,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 06:43:59,789 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 06:43:59,789 INFO L124 PetriNetUnfolderBase]: 563/1886 cut-off events. [2023-08-24 06:43:59,789 INFO L125 PetriNetUnfolderBase]: For 43617/43617 co-relation queries the response was YES. [2023-08-24 06:43:59,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 06:43:59,789 INFO L208 CegarLoopForPetriNet]: trace histogram [64, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:43:59,789 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 06:43:59,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 06:43:59,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1818315765, now seen corresponding path program 1 times [2023-08-24 06:43:59,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 06:43:59,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847685630] [2023-08-24 06:43:59,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 06:43:59,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 06:43:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:43:59,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 06:43:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 06:43:59,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 06:43:59,974 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 06:43:59,974 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 06:43:59,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-08-24 06:43:59,974 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 06:43:59,975 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 06:43:59,975 WARN L233 ceAbstractionStarter]: 63 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 06:43:59,975 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 64 thread instances. [2023-08-24 06:44:00,087 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 06:44:00,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1921 places, 2180 transitions, 8712 flow [2023-08-24 06:44:04,340 INFO L124 PetriNetUnfolderBase]: 644/4543 cut-off events. [2023-08-24 06:44:04,340 INFO L125 PetriNetUnfolderBase]: For 45696/45696 co-relation queries the response was YES. [2023-08-24 06:44:04,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6816 conditions, 4543 events. 644/4543 cut-off events. For 45696/45696 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 16728 event pairs, 0 based on Foata normal form. 0/3769 useless extension candidates. Maximal degree in co-relation 6654. Up to 130 conditions per place. [2023-08-24 06:44:04,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 1921 places, 2180 transitions, 8712 flow [2023-08-24 06:44:04,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1921 places, 2180 transitions, 8712 flow [2023-08-24 06:44:04,912 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 06:44:04,912 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1921 places, 2180 transitions, 8712 flow [2023-08-24 06:44:04,912 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1921 places, 2180 transitions, 8712 flow [2023-08-24 06:44:04,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1921 places, 2180 transitions, 8712 flow Received shutdown request... [2023-08-24 06:44:06,322 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-24 06:44:06,411 FATAL L? ?]: A wrapped exception occured: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction threw an exception: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.computeUnfolding(PetriNetUnfolderBase.java:200) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.(PetriNetUnfolderBase.java:123) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:72) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.partialorder.CoenabledRelation.fromPetriNet(CoenabledRelation.java:79) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:116) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:95) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) ... 18 more [2023-08-24 06:44:06,413 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.computeUnfolding(PetriNetUnfolderBase.java:200) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.(PetriNetUnfolderBase.java:123) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:72) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.partialorder.CoenabledRelation.fromPetriNet(CoenabledRelation.java:79) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:116) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:95) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-24 06:44:06,414 INFO L158 Benchmark]: Toolchain (without parser) took 735611.16ms. Allocated memory was 356.5MB in the beginning and 13.9GB in the end (delta: 13.6GB). Free memory was 329.8MB in the beginning and 8.8GB in the end (delta: -8.4GB). Peak memory consumption was 5.7GB. Max. memory is 16.0GB. [2023-08-24 06:44:06,414 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 356.5MB. Free memory was 334.7MB in the beginning and 334.6MB in the end (delta: 86.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 06:44:06,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.88ms. Allocated memory is still 356.5MB. Free memory was 329.2MB in the beginning and 309.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 06:44:06,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.24ms. Allocated memory is still 356.5MB. Free memory was 309.7MB in the beginning and 307.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 06:44:06,415 INFO L158 Benchmark]: Boogie Preprocessor took 22.58ms. Allocated memory is still 356.5MB. Free memory was 307.6MB in the beginning and 306.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 06:44:06,415 INFO L158 Benchmark]: RCFGBuilder took 368.64ms. Allocated memory is still 356.5MB. Free memory was 306.1MB in the beginning and 291.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-24 06:44:06,415 INFO L158 Benchmark]: TraceAbstraction took 734810.57ms. Allocated memory was 356.5MB in the beginning and 13.9GB in the end (delta: 13.6GB). Free memory was 290.8MB in the beginning and 8.8GB in the end (delta: -8.5GB). Peak memory consumption was 5.7GB. Max. memory is 16.0GB. [2023-08-24 06:44:06,416 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 356.5MB. Free memory was 334.7MB in the beginning and 334.6MB in the end (delta: 86.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 360.88ms. Allocated memory is still 356.5MB. Free memory was 329.2MB in the beginning and 309.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.24ms. Allocated memory is still 356.5MB. Free memory was 309.7MB in the beginning and 307.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.58ms. Allocated memory is still 356.5MB. Free memory was 307.6MB in the beginning and 306.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 368.64ms. Allocated memory is still 356.5MB. Free memory was 306.1MB in the beginning and 291.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 734810.57ms. Allocated memory was 356.5MB in the beginning and 13.9GB in the end (delta: 13.6GB). Free memory was 290.8MB in the beginning and 8.8GB in the end (delta: -8.5GB). Peak memory consumption was 5.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 94 PlacesBefore, 25 PlacesAfterwards, 101 TransitionsBefore, 30 TransitionsAfterwards, 2432 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4475 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2472, independent: 2305, independent conditional: 0, independent unconditional: 2305, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1335, independent: 1293, independent conditional: 0, independent unconditional: 1293, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2472, independent: 1012, independent conditional: 0, independent unconditional: 1012, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 1335, unknown conditional: 0, unknown unconditional: 1335] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 123 PlacesBefore, 40 PlacesAfterwards, 134 TransitionsBefore, 49 TransitionsAfterwards, 6976 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 2 ChoiceCompositions, 104 TotalNumberOfCompositions, 13909 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5842, independent: 5580, independent conditional: 0, independent unconditional: 5580, dependent: 262, dependent conditional: 0, dependent unconditional: 262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3399, independent: 3345, independent conditional: 0, independent unconditional: 3345, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5842, independent: 2235, independent conditional: 0, independent unconditional: 2235, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 3399, unknown conditional: 0, unknown unconditional: 3399] , Statistics on independence cache: Total cache size (in pairs): 123, Positive cache size: 99, Positive conditional cache size: 0, Positive unconditional cache size: 99, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 152 PlacesBefore, 54 PlacesAfterwards, 167 TransitionsBefore, 67 TransitionsAfterwards, 13632 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 2 ChoiceCompositions, 122 TotalNumberOfCompositions, 29300 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11644, independent: 11270, independent conditional: 0, independent unconditional: 11270, dependent: 374, dependent conditional: 0, dependent unconditional: 374, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6515, independent: 6431, independent conditional: 0, independent unconditional: 6431, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11644, independent: 4839, independent conditional: 0, independent unconditional: 4839, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 6515, unknown conditional: 0, unknown unconditional: 6515] , Statistics on independence cache: Total cache size (in pairs): 318, Positive cache size: 284, Positive conditional cache size: 0, Positive unconditional cache size: 284, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 181 PlacesBefore, 68 PlacesAfterwards, 200 TransitionsBefore, 85 TransitionsAfterwards, 22400 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 2 ChoiceCompositions, 144 TotalNumberOfCompositions, 51430 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19915, independent: 19428, independent conditional: 0, independent unconditional: 19428, dependent: 487, dependent conditional: 0, dependent unconditional: 487, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11003, independent: 10884, independent conditional: 0, independent unconditional: 10884, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 19915, independent: 8544, independent conditional: 0, independent unconditional: 8544, dependent: 368, dependent conditional: 0, dependent unconditional: 368, unknown: 11003, unknown conditional: 0, unknown unconditional: 11003] , Statistics on independence cache: Total cache size (in pairs): 625, Positive cache size: 576, Positive conditional cache size: 0, Positive unconditional cache size: 576, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 210 PlacesBefore, 82 PlacesAfterwards, 233 TransitionsBefore, 103 TransitionsAfterwards, 33280 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 105 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 29 ConcurrentYvCompositions, 2 ChoiceCompositions, 165 TotalNumberOfCompositions, 83530 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28357, independent: 27684, independent conditional: 0, independent unconditional: 27684, dependent: 673, dependent conditional: 0, dependent unconditional: 673, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15456, independent: 15334, independent conditional: 0, independent unconditional: 15334, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 28357, independent: 12350, independent conditional: 0, independent unconditional: 12350, dependent: 551, dependent conditional: 0, dependent unconditional: 551, unknown: 15456, unknown conditional: 0, unknown unconditional: 15456] , Statistics on independence cache: Total cache size (in pairs): 721, Positive cache size: 666, Positive conditional cache size: 0, Positive unconditional cache size: 666, Negative cache size: 55, Negative conditional cache size: 0, Negative unconditional cache size: 55, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 239 PlacesBefore, 96 PlacesAfterwards, 266 TransitionsBefore, 121 TransitionsAfterwards, 46272 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 120 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 33 ConcurrentYvCompositions, 2 ChoiceCompositions, 184 TotalNumberOfCompositions, 105461 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34386, independent: 33705, independent conditional: 0, independent unconditional: 33705, dependent: 681, dependent conditional: 0, dependent unconditional: 681, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 20831, independent: 20693, independent conditional: 0, independent unconditional: 20693, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 34386, independent: 13012, independent conditional: 0, independent unconditional: 13012, dependent: 543, dependent conditional: 0, dependent unconditional: 543, unknown: 20831, unknown conditional: 0, unknown unconditional: 20831] , Statistics on independence cache: Total cache size (in pairs): 556, Positive cache size: 491, Positive conditional cache size: 0, Positive unconditional cache size: 491, Negative cache size: 65, Negative conditional cache size: 0, Negative unconditional cache size: 65, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 268 PlacesBefore, 110 PlacesAfterwards, 299 TransitionsBefore, 139 TransitionsAfterwards, 61376 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 135 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 37 ConcurrentYvCompositions, 2 ChoiceCompositions, 203 TotalNumberOfCompositions, 154198 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45239, independent: 44346, independent conditional: 0, independent unconditional: 44346, dependent: 893, dependent conditional: 0, dependent unconditional: 893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 27332, independent: 27158, independent conditional: 0, independent unconditional: 27158, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 45239, independent: 17188, independent conditional: 0, independent unconditional: 17188, dependent: 719, dependent conditional: 0, dependent unconditional: 719, unknown: 27332, unknown conditional: 0, unknown unconditional: 27332] , Statistics on independence cache: Total cache size (in pairs): 625, Positive cache size: 550, Positive conditional cache size: 0, Positive unconditional cache size: 550, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 297 PlacesBefore, 124 PlacesAfterwards, 332 TransitionsBefore, 157 TransitionsAfterwards, 78592 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 152 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 41 ConcurrentYvCompositions, 2 ChoiceCompositions, 224 TotalNumberOfCompositions, 181518 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62473, independent: 61594, independent conditional: 0, independent unconditional: 61594, dependent: 879, dependent conditional: 0, dependent unconditional: 879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 35670, independent: 35504, independent conditional: 0, independent unconditional: 35504, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 62473, independent: 26090, independent conditional: 0, independent unconditional: 26090, dependent: 713, dependent conditional: 0, dependent unconditional: 713, unknown: 35670, unknown conditional: 0, unknown unconditional: 35670] , Statistics on independence cache: Total cache size (in pairs): 1436, Positive cache size: 1351, Positive conditional cache size: 0, Positive unconditional cache size: 1351, Negative cache size: 85, Negative conditional cache size: 0, Negative unconditional cache size: 85, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 326 PlacesBefore, 138 PlacesAfterwards, 365 TransitionsBefore, 175 TransitionsAfterwards, 97920 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 165 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 45 ConcurrentYvCompositions, 2 ChoiceCompositions, 241 TotalNumberOfCompositions, 226486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 82731, independent: 81753, independent conditional: 0, independent unconditional: 81753, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 44680, independent: 44460, independent conditional: 0, independent unconditional: 44460, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 82731, independent: 37293, independent conditional: 0, independent unconditional: 37293, dependent: 758, dependent conditional: 0, dependent unconditional: 758, unknown: 44680, unknown conditional: 0, unknown unconditional: 44680] , Statistics on independence cache: Total cache size (in pairs): 2459, Positive cache size: 2364, Positive conditional cache size: 0, Positive unconditional cache size: 2364, Negative cache size: 95, Negative conditional cache size: 0, Negative unconditional cache size: 95, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 355 PlacesBefore, 152 PlacesAfterwards, 398 TransitionsBefore, 193 TransitionsAfterwards, 119360 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 179 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 49 ConcurrentYvCompositions, 2 ChoiceCompositions, 259 TotalNumberOfCompositions, 311263 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 97195, independent: 95929, independent conditional: 0, independent unconditional: 95929, dependent: 1266, dependent conditional: 0, dependent unconditional: 1266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 54095, independent: 53869, independent conditional: 0, independent unconditional: 53869, dependent: 226, dependent conditional: 0, dependent unconditional: 226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 97195, independent: 42060, independent conditional: 0, independent unconditional: 42060, dependent: 1040, dependent conditional: 0, dependent unconditional: 1040, unknown: 54095, unknown conditional: 0, unknown unconditional: 54095] , Statistics on independence cache: Total cache size (in pairs): 2396, Positive cache size: 2292, Positive conditional cache size: 0, Positive unconditional cache size: 2292, Negative cache size: 104, Negative conditional cache size: 0, Negative unconditional cache size: 104, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 384 PlacesBefore, 166 PlacesAfterwards, 431 TransitionsBefore, 211 TransitionsAfterwards, 142912 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 193 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 53 ConcurrentYvCompositions, 2 ChoiceCompositions, 277 TotalNumberOfCompositions, 328486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 102370, independent: 101201, independent conditional: 0, independent unconditional: 101201, dependent: 1169, dependent conditional: 0, dependent unconditional: 1169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 63165, independent: 62910, independent conditional: 0, independent unconditional: 62910, dependent: 255, dependent conditional: 0, dependent unconditional: 255, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 102370, independent: 38291, independent conditional: 0, independent unconditional: 38291, dependent: 914, dependent conditional: 0, dependent unconditional: 914, unknown: 63165, unknown conditional: 0, unknown unconditional: 63165] , Statistics on independence cache: Total cache size (in pairs): 2033, Positive cache size: 1918, Positive conditional cache size: 0, Positive unconditional cache size: 1918, Negative cache size: 115, Negative conditional cache size: 0, Negative unconditional cache size: 115, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 413 PlacesBefore, 180 PlacesAfterwards, 464 TransitionsBefore, 229 TransitionsAfterwards, 168576 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 214 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 57 ConcurrentYvCompositions, 2 ChoiceCompositions, 302 TotalNumberOfCompositions, 408566 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 122328, independent: 121022, independent conditional: 0, independent unconditional: 121022, dependent: 1306, dependent conditional: 0, dependent unconditional: 1306, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 74358, independent: 74059, independent conditional: 0, independent unconditional: 74059, dependent: 299, dependent conditional: 0, dependent unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 122328, independent: 46963, independent conditional: 0, independent unconditional: 46963, dependent: 1007, dependent conditional: 0, dependent unconditional: 1007, unknown: 74358, unknown conditional: 0, unknown unconditional: 74358] , Statistics on independence cache: Total cache size (in pairs): 2117, Positive cache size: 1990, Positive conditional cache size: 0, Positive unconditional cache size: 1990, Negative cache size: 127, Negative conditional cache size: 0, Negative unconditional cache size: 127, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 442 PlacesBefore, 194 PlacesAfterwards, 497 TransitionsBefore, 247 TransitionsAfterwards, 196352 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 227 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 61 ConcurrentYvCompositions, 2 ChoiceCompositions, 319 TotalNumberOfCompositions, 476113 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 162594, independent: 161181, independent conditional: 0, independent unconditional: 161181, dependent: 1413, dependent conditional: 0, dependent unconditional: 1413, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 88371, independent: 88045, independent conditional: 0, independent unconditional: 88045, dependent: 326, dependent conditional: 0, dependent unconditional: 326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 162594, independent: 73136, independent conditional: 0, independent unconditional: 73136, dependent: 1087, dependent conditional: 0, dependent unconditional: 1087, unknown: 88371, unknown conditional: 0, unknown unconditional: 88371] , Statistics on independence cache: Total cache size (in pairs): 4562, Positive cache size: 4427, Positive conditional cache size: 0, Positive unconditional cache size: 4427, Negative cache size: 135, Negative conditional cache size: 0, Negative unconditional cache size: 135, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 471 PlacesBefore, 208 PlacesAfterwards, 530 TransitionsBefore, 265 TransitionsAfterwards, 226240 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 243 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 65 ConcurrentYvCompositions, 2 ChoiceCompositions, 339 TotalNumberOfCompositions, 553617 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 185153, independent: 183630, independent conditional: 0, independent unconditional: 183630, dependent: 1523, dependent conditional: 0, dependent unconditional: 1523, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 101047, independent: 100722, independent conditional: 0, independent unconditional: 100722, dependent: 325, dependent conditional: 0, dependent unconditional: 325, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 185153, independent: 82908, independent conditional: 0, independent unconditional: 82908, dependent: 1198, dependent conditional: 0, dependent unconditional: 1198, unknown: 101047, unknown conditional: 0, unknown unconditional: 101047] , Statistics on independence cache: Total cache size (in pairs): 4611, Positive cache size: 4466, Positive conditional cache size: 0, Positive unconditional cache size: 4466, Negative cache size: 145, Negative conditional cache size: 0, Negative unconditional cache size: 145, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 500 PlacesBefore, 222 PlacesAfterwards, 563 TransitionsBefore, 283 TransitionsAfterwards, 258240 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 260 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 69 ConcurrentYvCompositions, 2 ChoiceCompositions, 360 TotalNumberOfCompositions, 634361 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 203540, independent: 201912, independent conditional: 0, independent unconditional: 201912, dependent: 1628, dependent conditional: 0, dependent unconditional: 1628, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 114330, independent: 114001, independent conditional: 0, independent unconditional: 114001, dependent: 329, dependent conditional: 0, dependent unconditional: 329, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 203540, independent: 87911, independent conditional: 0, independent unconditional: 87911, dependent: 1299, dependent conditional: 0, dependent unconditional: 1299, unknown: 114330, unknown conditional: 0, unknown unconditional: 114330] , Statistics on independence cache: Total cache size (in pairs): 4835, Positive cache size: 4680, Positive conditional cache size: 0, Positive unconditional cache size: 4680, Negative cache size: 155, Negative conditional cache size: 0, Negative unconditional cache size: 155, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 529 PlacesBefore, 236 PlacesAfterwards, 596 TransitionsBefore, 301 TransitionsAfterwards, 292352 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 277 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 73 ConcurrentYvCompositions, 2 ChoiceCompositions, 381 TotalNumberOfCompositions, 714223 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 232642, independent: 230924, independent conditional: 0, independent unconditional: 230924, dependent: 1718, dependent conditional: 0, dependent unconditional: 1718, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 129234, independent: 128873, independent conditional: 0, independent unconditional: 128873, dependent: 361, dependent conditional: 0, dependent unconditional: 361, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 232642, independent: 102051, independent conditional: 0, independent unconditional: 102051, dependent: 1357, dependent conditional: 0, dependent unconditional: 1357, unknown: 129234, unknown conditional: 0, unknown unconditional: 129234] , Statistics on independence cache: Total cache size (in pairs): 5537, Positive cache size: 5372, Positive conditional cache size: 0, Positive unconditional cache size: 5372, Negative cache size: 165, Negative conditional cache size: 0, Negative unconditional cache size: 165, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 558 PlacesBefore, 250 PlacesAfterwards, 629 TransitionsBefore, 319 TransitionsAfterwards, 328576 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 290 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 77 ConcurrentYvCompositions, 2 ChoiceCompositions, 398 TotalNumberOfCompositions, 803754 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 271472, independent: 269649, independent conditional: 0, independent unconditional: 269649, dependent: 1823, dependent conditional: 0, dependent unconditional: 1823, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 145460, independent: 145135, independent conditional: 0, independent unconditional: 145135, dependent: 325, dependent conditional: 0, dependent unconditional: 325, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 271472, independent: 124514, independent conditional: 0, independent unconditional: 124514, dependent: 1498, dependent conditional: 0, dependent unconditional: 1498, unknown: 145460, unknown conditional: 0, unknown unconditional: 145460] , Statistics on independence cache: Total cache size (in pairs): 6287, Positive cache size: 6113, Positive conditional cache size: 0, Positive unconditional cache size: 6113, Negative cache size: 174, Negative conditional cache size: 0, Negative unconditional cache size: 174, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 587 PlacesBefore, 264 PlacesAfterwards, 662 TransitionsBefore, 337 TransitionsAfterwards, 366912 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 310 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 81 ConcurrentYvCompositions, 2 ChoiceCompositions, 422 TotalNumberOfCompositions, 899021 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 289363, independent: 287443, independent conditional: 0, independent unconditional: 287443, dependent: 1920, dependent conditional: 0, dependent unconditional: 1920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 162672, independent: 162238, independent conditional: 0, independent unconditional: 162238, dependent: 434, dependent conditional: 0, dependent unconditional: 434, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 289363, independent: 125205, independent conditional: 0, independent unconditional: 125205, dependent: 1486, dependent conditional: 0, dependent unconditional: 1486, unknown: 162672, unknown conditional: 0, unknown unconditional: 162672] , Statistics on independence cache: Total cache size (in pairs): 7551, Positive cache size: 7366, Positive conditional cache size: 0, Positive unconditional cache size: 7366, Negative cache size: 185, Negative conditional cache size: 0, Negative unconditional cache size: 185, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 616 PlacesBefore, 278 PlacesAfterwards, 695 TransitionsBefore, 355 TransitionsAfterwards, 407360 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 323 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 85 ConcurrentYvCompositions, 2 ChoiceCompositions, 439 TotalNumberOfCompositions, 1006082 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 336988, independent: 334946, independent conditional: 0, independent unconditional: 334946, dependent: 2042, dependent conditional: 0, dependent unconditional: 2042, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 179976, independent: 179570, independent conditional: 0, independent unconditional: 179570, dependent: 406, dependent conditional: 0, dependent unconditional: 406, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 336988, independent: 155376, independent conditional: 0, independent unconditional: 155376, dependent: 1636, dependent conditional: 0, dependent unconditional: 1636, unknown: 179976, unknown conditional: 0, unknown unconditional: 179976] , Statistics on independence cache: Total cache size (in pairs): 8495, Positive cache size: 8300, Positive conditional cache size: 0, Positive unconditional cache size: 8300, Negative cache size: 195, Negative conditional cache size: 0, Negative unconditional cache size: 195, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 645 PlacesBefore, 292 PlacesAfterwards, 728 TransitionsBefore, 373 TransitionsAfterwards, 449920 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 333 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 89 ConcurrentYvCompositions, 2 ChoiceCompositions, 453 TotalNumberOfCompositions, 1103578 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 305103, independent: 302970, independent conditional: 0, independent unconditional: 302970, dependent: 2133, dependent conditional: 0, dependent unconditional: 2133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 193280, independent: 192843, independent conditional: 0, independent unconditional: 192843, dependent: 437, dependent conditional: 0, dependent unconditional: 437, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 305103, independent: 110127, independent conditional: 0, independent unconditional: 110127, dependent: 1696, dependent conditional: 0, dependent unconditional: 1696, unknown: 193280, unknown conditional: 0, unknown unconditional: 193280] , Statistics on independence cache: Total cache size (in pairs): 4080, Positive cache size: 3875, Positive conditional cache size: 0, Positive unconditional cache size: 3875, Negative cache size: 205, Negative conditional cache size: 0, Negative unconditional cache size: 205, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6s, 674 PlacesBefore, 306 PlacesAfterwards, 761 TransitionsBefore, 391 TransitionsAfterwards, 494592 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 354 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 93 ConcurrentYvCompositions, 2 ChoiceCompositions, 478 TotalNumberOfCompositions, 1363915 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 401710, independent: 399095, independent conditional: 0, independent unconditional: 399095, dependent: 2615, dependent conditional: 0, dependent unconditional: 2615, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 218118, independent: 217607, independent conditional: 0, independent unconditional: 217607, dependent: 511, dependent conditional: 0, dependent unconditional: 511, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 401710, independent: 181488, independent conditional: 0, independent unconditional: 181488, dependent: 2104, dependent conditional: 0, dependent unconditional: 2104, unknown: 218118, unknown conditional: 0, unknown unconditional: 218118] , Statistics on independence cache: Total cache size (in pairs): 9690, Positive cache size: 9475, Positive conditional cache size: 0, Positive unconditional cache size: 9475, Negative cache size: 215, Negative conditional cache size: 0, Negative unconditional cache size: 215, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 703 PlacesBefore, 320 PlacesAfterwards, 794 TransitionsBefore, 409 TransitionsAfterwards, 541376 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 368 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 97 ConcurrentYvCompositions, 2 ChoiceCompositions, 496 TotalNumberOfCompositions, 1493778 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 420863, independent: 418127, independent conditional: 0, independent unconditional: 418127, dependent: 2736, dependent conditional: 0, dependent unconditional: 2736, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 236992, independent: 236499, independent conditional: 0, independent unconditional: 236499, dependent: 493, dependent conditional: 0, dependent unconditional: 493, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 420863, independent: 181628, independent conditional: 0, independent unconditional: 181628, dependent: 2243, dependent conditional: 0, dependent unconditional: 2243, unknown: 236992, unknown conditional: 0, unknown unconditional: 236992] , Statistics on independence cache: Total cache size (in pairs): 8521, Positive cache size: 8296, Positive conditional cache size: 0, Positive unconditional cache size: 8296, Negative cache size: 225, Negative conditional cache size: 0, Negative unconditional cache size: 225, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0s, 732 PlacesBefore, 334 PlacesAfterwards, 827 TransitionsBefore, 427 TransitionsAfterwards, 590272 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 381 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 101 ConcurrentYvCompositions, 2 ChoiceCompositions, 513 TotalNumberOfCompositions, 1458520 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 397573, independent: 395113, independent conditional: 0, independent unconditional: 395113, dependent: 2460, dependent conditional: 0, dependent unconditional: 2460, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 252986, independent: 252419, independent conditional: 0, independent unconditional: 252419, dependent: 567, dependent conditional: 0, dependent unconditional: 567, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 397573, independent: 142694, independent conditional: 0, independent unconditional: 142694, dependent: 1893, dependent conditional: 0, dependent unconditional: 1893, unknown: 252986, unknown conditional: 0, unknown unconditional: 252986] , Statistics on independence cache: Total cache size (in pairs): 5476, Positive cache size: 5240, Positive conditional cache size: 0, Positive unconditional cache size: 5240, Negative cache size: 236, Negative conditional cache size: 0, Negative unconditional cache size: 236, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2s, 761 PlacesBefore, 348 PlacesAfterwards, 860 TransitionsBefore, 445 TransitionsAfterwards, 641280 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 395 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 105 ConcurrentYvCompositions, 2 ChoiceCompositions, 531 TotalNumberOfCompositions, 1593189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 491637, independent: 489063, independent conditional: 0, independent unconditional: 489063, dependent: 2574, dependent conditional: 0, dependent unconditional: 2574, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 282297, independent: 281703, independent conditional: 0, independent unconditional: 281703, dependent: 594, dependent conditional: 0, dependent unconditional: 594, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 491637, independent: 207360, independent conditional: 0, independent unconditional: 207360, dependent: 1980, dependent conditional: 0, dependent unconditional: 1980, unknown: 282297, unknown conditional: 0, unknown unconditional: 282297] , Statistics on independence cache: Total cache size (in pairs): 13134, Positive cache size: 12889, Positive conditional cache size: 0, Positive unconditional cache size: 12889, Negative cache size: 245, Negative conditional cache size: 0, Negative unconditional cache size: 245, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 790 PlacesBefore, 362 PlacesAfterwards, 893 TransitionsBefore, 463 TransitionsAfterwards, 694400 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 419 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 109 ConcurrentYvCompositions, 2 ChoiceCompositions, 559 TotalNumberOfCompositions, 1730889 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 534759, independent: 532085, independent conditional: 0, independent unconditional: 532085, dependent: 2674, dependent conditional: 0, dependent unconditional: 2674, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 301826, independent: 301265, independent conditional: 0, independent unconditional: 301265, dependent: 561, dependent conditional: 0, dependent unconditional: 561, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 534759, independent: 230820, independent conditional: 0, independent unconditional: 230820, dependent: 2113, dependent conditional: 0, dependent unconditional: 2113, unknown: 301826, unknown conditional: 0, unknown unconditional: 301826] , Statistics on independence cache: Total cache size (in pairs): 10347, Positive cache size: 10092, Positive conditional cache size: 0, Positive unconditional cache size: 10092, Negative cache size: 255, Negative conditional cache size: 0, Negative unconditional cache size: 255, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 819 PlacesBefore, 376 PlacesAfterwards, 926 TransitionsBefore, 481 TransitionsAfterwards, 749632 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 431 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 113 ConcurrentYvCompositions, 2 ChoiceCompositions, 575 TotalNumberOfCompositions, 1864572 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 505597, independent: 502829, independent conditional: 0, independent unconditional: 502829, dependent: 2768, dependent conditional: 0, dependent unconditional: 2768, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 320920, independent: 320362, independent conditional: 0, independent unconditional: 320362, dependent: 558, dependent conditional: 0, dependent unconditional: 558, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 505597, independent: 182467, independent conditional: 0, independent unconditional: 182467, dependent: 2210, dependent conditional: 0, dependent unconditional: 2210, unknown: 320920, unknown conditional: 0, unknown unconditional: 320920] , Statistics on independence cache: Total cache size (in pairs): 6478, Positive cache size: 6213, Positive conditional cache size: 0, Positive unconditional cache size: 6213, Negative cache size: 265, Negative conditional cache size: 0, Negative unconditional cache size: 265, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 848 PlacesBefore, 390 PlacesAfterwards, 959 TransitionsBefore, 500 TransitionsAfterwards, 806976 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 446 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 117 ConcurrentYvCompositions, 1 ChoiceCompositions, 593 TotalNumberOfCompositions, 2238361 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 648504, independent: 645174, independent conditional: 0, independent unconditional: 645174, dependent: 3330, dependent conditional: 0, dependent unconditional: 3330, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 353782, independent: 353160, independent conditional: 0, independent unconditional: 353160, dependent: 622, dependent conditional: 0, dependent unconditional: 622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 648504, independent: 292014, independent conditional: 0, independent unconditional: 292014, dependent: 2708, dependent conditional: 0, dependent unconditional: 2708, unknown: 353782, unknown conditional: 0, unknown unconditional: 353782] , Statistics on independence cache: Total cache size (in pairs): 14931, Positive cache size: 14657, Positive conditional cache size: 0, Positive unconditional cache size: 14657, Negative cache size: 274, Negative conditional cache size: 0, Negative unconditional cache size: 274, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 877 PlacesBefore, 404 PlacesAfterwards, 992 TransitionsBefore, 518 TransitionsAfterwards, 866432 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 468 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 121 ConcurrentYvCompositions, 1 ChoiceCompositions, 619 TotalNumberOfCompositions, 2153371 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 684223, independent: 681258, independent conditional: 0, independent unconditional: 681258, dependent: 2965, dependent conditional: 0, dependent unconditional: 2965, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 379864, independent: 379284, independent conditional: 0, independent unconditional: 379284, dependent: 580, dependent conditional: 0, dependent unconditional: 580, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 684223, independent: 301974, independent conditional: 0, independent unconditional: 301974, dependent: 2385, dependent conditional: 0, dependent unconditional: 2385, unknown: 379864, unknown conditional: 0, unknown unconditional: 379864] , Statistics on independence cache: Total cache size (in pairs): 16154, Positive cache size: 15870, Positive conditional cache size: 0, Positive unconditional cache size: 15870, Negative cache size: 284, Negative conditional cache size: 0, Negative unconditional cache size: 284, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 906 PlacesBefore, 418 PlacesAfterwards, 1025 TransitionsBefore, 536 TransitionsAfterwards, 928000 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 480 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 125 ConcurrentYvCompositions, 1 ChoiceCompositions, 635 TotalNumberOfCompositions, 2304542 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 710002, independent: 706935, independent conditional: 0, independent unconditional: 706935, dependent: 3067, dependent conditional: 0, dependent unconditional: 3067, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 404008, independent: 403404, independent conditional: 0, independent unconditional: 403404, dependent: 604, dependent conditional: 0, dependent unconditional: 604, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 710002, independent: 303531, independent conditional: 0, independent unconditional: 303531, dependent: 2463, dependent conditional: 0, dependent unconditional: 2463, unknown: 404008, unknown conditional: 0, unknown unconditional: 404008] , Statistics on independence cache: Total cache size (in pairs): 14724, Positive cache size: 14430, Positive conditional cache size: 0, Positive unconditional cache size: 14430, Negative cache size: 294, Negative conditional cache size: 0, Negative unconditional cache size: 294, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1s, 935 PlacesBefore, 432 PlacesAfterwards, 1058 TransitionsBefore, 553 TransitionsAfterwards, 991680 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 497 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 129 ConcurrentYvCompositions, 2 ChoiceCompositions, 657 TotalNumberOfCompositions, 2481711 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 725615, independent: 722427, independent conditional: 0, independent unconditional: 722427, dependent: 3188, dependent conditional: 0, dependent unconditional: 3188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 427987, independent: 427313, independent conditional: 0, independent unconditional: 427313, dependent: 674, dependent conditional: 0, dependent unconditional: 674, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 725615, independent: 295114, independent conditional: 0, independent unconditional: 295114, dependent: 2514, dependent conditional: 0, dependent unconditional: 2514, unknown: 427987, unknown conditional: 0, unknown unconditional: 427987] , Statistics on independence cache: Total cache size (in pairs): 12289, Positive cache size: 11984, Positive conditional cache size: 0, Positive unconditional cache size: 11984, Negative cache size: 305, Negative conditional cache size: 0, Negative unconditional cache size: 305, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1s, 964 PlacesBefore, 446 PlacesAfterwards, 1091 TransitionsBefore, 572 TransitionsAfterwards, 1057472 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 514 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 133 ConcurrentYvCompositions, 1 ChoiceCompositions, 677 TotalNumberOfCompositions, 2648435 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 719723, independent: 716430, independent conditional: 0, independent unconditional: 716430, dependent: 3293, dependent conditional: 0, dependent unconditional: 3293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 451939, independent: 451336, independent conditional: 0, independent unconditional: 451336, dependent: 603, dependent conditional: 0, dependent unconditional: 603, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 719723, independent: 265094, independent conditional: 0, independent unconditional: 265094, dependent: 2690, dependent conditional: 0, dependent unconditional: 2690, unknown: 451939, unknown conditional: 0, unknown unconditional: 451939] , Statistics on independence cache: Total cache size (in pairs): 9024, Positive cache size: 8710, Positive conditional cache size: 0, Positive unconditional cache size: 8710, Negative cache size: 314, Negative conditional cache size: 0, Negative unconditional cache size: 314, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.2s, 993 PlacesBefore, 460 PlacesAfterwards, 1124 TransitionsBefore, 590 TransitionsAfterwards, 1125376 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 533 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 137 ConcurrentYvCompositions, 1 ChoiceCompositions, 700 TotalNumberOfCompositions, 2801452 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 765231, independent: 761863, independent conditional: 0, independent unconditional: 761863, dependent: 3368, dependent conditional: 0, dependent unconditional: 3368, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 481780, independent: 481120, independent conditional: 0, independent unconditional: 481120, dependent: 660, dependent conditional: 0, dependent unconditional: 660, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 765231, independent: 280743, independent conditional: 0, independent unconditional: 280743, dependent: 2708, dependent conditional: 0, dependent unconditional: 2708, unknown: 481780, unknown conditional: 0, unknown unconditional: 481780] , Statistics on independence cache: Total cache size (in pairs): 10113, Positive cache size: 9789, Positive conditional cache size: 0, Positive unconditional cache size: 9789, Negative cache size: 324, Negative conditional cache size: 0, Negative unconditional cache size: 324, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1s, 1022 PlacesBefore, 474 PlacesAfterwards, 1157 TransitionsBefore, 608 TransitionsAfterwards, 1195392 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 545 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 141 ConcurrentYvCompositions, 1 ChoiceCompositions, 716 TotalNumberOfCompositions, 2970445 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 806256, independent: 802789, independent conditional: 0, independent unconditional: 802789, dependent: 3467, dependent conditional: 0, dependent unconditional: 3467, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 511213, independent: 510528, independent conditional: 0, independent unconditional: 510528, dependent: 685, dependent conditional: 0, dependent unconditional: 685, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 806256, independent: 292261, independent conditional: 0, independent unconditional: 292261, dependent: 2782, dependent conditional: 0, dependent unconditional: 2782, unknown: 511213, unknown conditional: 0, unknown unconditional: 511213] , Statistics on independence cache: Total cache size (in pairs): 10173, Positive cache size: 9839, Positive conditional cache size: 0, Positive unconditional cache size: 9839, 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: 9.1s, 1051 PlacesBefore, 488 PlacesAfterwards, 1190 TransitionsBefore, 626 TransitionsAfterwards, 1267520 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 566 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 145 ConcurrentYvCompositions, 1 ChoiceCompositions, 741 TotalNumberOfCompositions, 3176615 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 864718, independent: 861125, independent conditional: 0, independent unconditional: 861125, dependent: 3593, dependent conditional: 0, dependent unconditional: 3593, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 541903, independent: 541084, independent conditional: 0, independent unconditional: 541084, dependent: 819, dependent conditional: 0, dependent unconditional: 819, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 864718, independent: 320041, independent conditional: 0, independent unconditional: 320041, dependent: 2774, dependent conditional: 0, dependent unconditional: 2774, unknown: 541903, unknown conditional: 0, unknown unconditional: 541903] , Statistics on independence cache: Total cache size (in pairs): 11095, Positive cache size: 10683, Positive conditional cache size: 0, Positive unconditional cache size: 10683, Negative cache size: 412, Negative conditional cache size: 0, Negative unconditional cache size: 412, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.3s, 1080 PlacesBefore, 502 PlacesAfterwards, 1223 TransitionsBefore, 644 TransitionsAfterwards, 1341760 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 575 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 149 ConcurrentYvCompositions, 1 ChoiceCompositions, 754 TotalNumberOfCompositions, 3362065 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1024671, independent: 1020969, independent conditional: 0, independent unconditional: 1020969, dependent: 3702, dependent conditional: 0, dependent unconditional: 3702, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 585324, independent: 584533, independent conditional: 0, independent unconditional: 584533, dependent: 791, dependent conditional: 0, dependent unconditional: 791, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1024671, independent: 436436, independent conditional: 0, independent unconditional: 436436, dependent: 2911, dependent conditional: 0, dependent unconditional: 2911, unknown: 585324, unknown conditional: 0, unknown unconditional: 585324] , Statistics on independence cache: Total cache size (in pairs): 24330, Positive cache size: 23977, Positive conditional cache size: 0, Positive unconditional cache size: 23977, Negative cache size: 353, Negative conditional cache size: 0, Negative unconditional cache size: 353, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.6s, 1109 PlacesBefore, 516 PlacesAfterwards, 1256 TransitionsBefore, 662 TransitionsAfterwards, 1418112 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 596 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 153 ConcurrentYvCompositions, 1 ChoiceCompositions, 779 TotalNumberOfCompositions, 3564486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 963991, independent: 960182, independent conditional: 0, independent unconditional: 960182, dependent: 3809, dependent conditional: 0, dependent unconditional: 3809, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 606449, independent: 605371, independent conditional: 0, independent unconditional: 605371, dependent: 1078, dependent conditional: 0, dependent unconditional: 1078, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 963991, independent: 354811, independent conditional: 0, independent unconditional: 354811, dependent: 2731, dependent conditional: 0, dependent unconditional: 2731, unknown: 606449, unknown conditional: 0, unknown unconditional: 606449] , Statistics on independence cache: Total cache size (in pairs): 12564, Positive cache size: 12126, Positive conditional cache size: 0, Positive unconditional cache size: 12126, Negative cache size: 438, Negative conditional cache size: 0, Negative unconditional cache size: 438, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.5s, 1138 PlacesBefore, 530 PlacesAfterwards, 1289 TransitionsBefore, 679 TransitionsAfterwards, 1496576 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 606 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 157 ConcurrentYvCompositions, 2 ChoiceCompositions, 794 TotalNumberOfCompositions, 4191691 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1188089, independent: 1183515, independent conditional: 0, independent unconditional: 1183515, dependent: 4574, dependent conditional: 0, dependent unconditional: 4574, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 650684, independent: 649852, independent conditional: 0, independent unconditional: 649852, dependent: 832, dependent conditional: 0, dependent unconditional: 832, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1188089, independent: 533663, independent conditional: 0, independent unconditional: 533663, dependent: 3742, dependent conditional: 0, dependent unconditional: 3742, unknown: 650684, unknown conditional: 0, unknown unconditional: 650684] , Statistics on independence cache: Total cache size (in pairs): 26383, Positive cache size: 26008, Positive conditional cache size: 0, Positive unconditional cache size: 26008, 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: 10.4s, 1167 PlacesBefore, 544 PlacesAfterwards, 1322 TransitionsBefore, 698 TransitionsAfterwards, 1577152 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 626 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 161 ConcurrentYvCompositions, 1 ChoiceCompositions, 817 TotalNumberOfCompositions, 3966257 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1082578, independent: 1078557, independent conditional: 0, independent unconditional: 1078557, dependent: 4021, dependent conditional: 0, dependent unconditional: 4021, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 674241, independent: 673438, independent conditional: 0, independent unconditional: 673438, dependent: 803, dependent conditional: 0, dependent unconditional: 803, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1082578, independent: 405119, independent conditional: 0, independent unconditional: 405119, dependent: 3218, dependent conditional: 0, dependent unconditional: 3218, unknown: 674241, unknown conditional: 0, unknown unconditional: 674241] , Statistics on independence cache: Total cache size (in pairs): 14396, Positive cache size: 14012, Positive conditional cache size: 0, Positive unconditional cache size: 14012, Negative cache size: 384, Negative conditional cache size: 0, Negative unconditional cache size: 384, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6s, 1196 PlacesBefore, 558 PlacesAfterwards, 1355 TransitionsBefore, 716 TransitionsAfterwards, 1659840 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 647 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 165 ConcurrentYvCompositions, 1 ChoiceCompositions, 842 TotalNumberOfCompositions, 4159524 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1280731, independent: 1276625, independent conditional: 0, independent unconditional: 1276625, dependent: 4106, dependent conditional: 0, dependent unconditional: 4106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 723971, independent: 723113, independent conditional: 0, independent unconditional: 723113, dependent: 858, dependent conditional: 0, dependent unconditional: 858, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1280731, independent: 553512, independent conditional: 0, independent unconditional: 553512, dependent: 3248, dependent conditional: 0, dependent unconditional: 3248, unknown: 723971, unknown conditional: 0, unknown unconditional: 723971] , Statistics on independence cache: Total cache size (in pairs): 30960, Positive cache size: 30566, Positive conditional cache size: 0, Positive unconditional cache size: 30566, Negative cache size: 394, Negative conditional cache size: 0, Negative unconditional cache size: 394, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1s, 1225 PlacesBefore, 572 PlacesAfterwards, 1388 TransitionsBefore, 734 TransitionsAfterwards, 1744640 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 650 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 169 ConcurrentYvCompositions, 1 ChoiceCompositions, 849 TotalNumberOfCompositions, 4874748 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1213168, independent: 1208256, independent conditional: 0, independent unconditional: 1208256, dependent: 4912, dependent conditional: 0, dependent unconditional: 4912, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 743825, independent: 742980, independent conditional: 0, independent unconditional: 742980, dependent: 845, dependent conditional: 0, dependent unconditional: 845, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1213168, independent: 465276, independent conditional: 0, independent unconditional: 465276, dependent: 4067, dependent conditional: 0, dependent unconditional: 4067, unknown: 743825, unknown conditional: 0, unknown unconditional: 743825] , Statistics on independence cache: Total cache size (in pairs): 15681, Positive cache size: 15277, Positive conditional cache size: 0, Positive unconditional cache size: 15277, Negative cache size: 404, Negative conditional cache size: 0, Negative unconditional cache size: 404, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4s, 1254 PlacesBefore, 586 PlacesAfterwards, 1421 TransitionsBefore, 752 TransitionsAfterwards, 1831552 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 669 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 173 ConcurrentYvCompositions, 1 ChoiceCompositions, 872 TotalNumberOfCompositions, 4599818 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1393027, independent: 1388692, independent conditional: 0, independent unconditional: 1388692, dependent: 4335, dependent conditional: 0, dependent unconditional: 4335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 796901, independent: 795988, independent conditional: 0, independent unconditional: 795988, dependent: 913, dependent conditional: 0, dependent unconditional: 913, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1393027, independent: 592704, independent conditional: 0, independent unconditional: 592704, dependent: 3422, dependent conditional: 0, dependent unconditional: 3422, unknown: 796901, unknown conditional: 0, unknown unconditional: 796901] , Statistics on independence cache: Total cache size (in pairs): 32893, Positive cache size: 32479, Positive conditional cache size: 0, Positive unconditional cache size: 32479, Negative cache size: 414, Negative conditional cache size: 0, Negative unconditional cache size: 414, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.8s, 1283 PlacesBefore, 600 PlacesAfterwards, 1454 TransitionsBefore, 770 TransitionsAfterwards, 1920576 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 690 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 177 ConcurrentYvCompositions, 1 ChoiceCompositions, 897 TotalNumberOfCompositions, 4843358 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1398667, independent: 1394224, independent conditional: 0, independent unconditional: 1394224, dependent: 4443, dependent conditional: 0, dependent unconditional: 4443, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 828195, independent: 827301, independent conditional: 0, independent unconditional: 827301, dependent: 894, dependent conditional: 0, dependent unconditional: 894, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1398667, independent: 566923, independent conditional: 0, independent unconditional: 566923, dependent: 3549, dependent conditional: 0, dependent unconditional: 3549, unknown: 828195, unknown conditional: 0, unknown unconditional: 828195] , Statistics on independence cache: Total cache size (in pairs): 24710, Positive cache size: 24286, Positive conditional cache size: 0, Positive unconditional cache size: 24286, Negative cache size: 424, Negative conditional cache size: 0, Negative unconditional cache size: 424, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3s, 1312 PlacesBefore, 614 PlacesAfterwards, 1487 TransitionsBefore, 788 TransitionsAfterwards, 2011712 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 691 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 181 ConcurrentYvCompositions, 1 ChoiceCompositions, 902 TotalNumberOfCompositions, 5051854 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1543682, independent: 1539123, independent conditional: 0, independent unconditional: 1539123, dependent: 4559, dependent conditional: 0, dependent unconditional: 4559, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 876097, independent: 875145, independent conditional: 0, independent unconditional: 875145, dependent: 952, dependent conditional: 0, dependent unconditional: 952, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1543682, independent: 663978, independent conditional: 0, independent unconditional: 663978, dependent: 3607, dependent conditional: 0, dependent unconditional: 3607, unknown: 876097, unknown conditional: 0, unknown unconditional: 876097] , Statistics on independence cache: Total cache size (in pairs): 38667, Positive cache size: 38233, Positive conditional cache size: 0, Positive unconditional cache size: 38233, Negative cache size: 434, Negative conditional cache size: 0, Negative unconditional cache size: 434, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.4s, 1341 PlacesBefore, 628 PlacesAfterwards, 1520 TransitionsBefore, 805 TransitionsAfterwards, 2104960 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 706 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 185 ConcurrentYvCompositions, 2 ChoiceCompositions, 922 TotalNumberOfCompositions, 5223476 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1649524, independent: 1644925, independent conditional: 0, independent unconditional: 1644925, dependent: 4599, dependent conditional: 0, dependent unconditional: 4599, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 917093, independent: 916154, independent conditional: 0, independent unconditional: 916154, dependent: 939, dependent conditional: 0, dependent unconditional: 939, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1649524, independent: 728771, independent conditional: 0, independent unconditional: 728771, dependent: 3660, dependent conditional: 0, dependent unconditional: 3660, unknown: 917093, unknown conditional: 0, unknown unconditional: 917093] , Statistics on independence cache: Total cache size (in pairs): 38602, Positive cache size: 38159, Positive conditional cache size: 0, Positive unconditional cache size: 38159, Negative cache size: 443, Negative conditional cache size: 0, Negative unconditional cache size: 443, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.2s, 1370 PlacesBefore, 642 PlacesAfterwards, 1553 TransitionsBefore, 824 TransitionsAfterwards, 2200320 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 735 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 189 ConcurrentYvCompositions, 1 ChoiceCompositions, 954 TotalNumberOfCompositions, 5554440 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1496561, independent: 1491798, independent conditional: 0, independent unconditional: 1491798, dependent: 4763, dependent conditional: 0, dependent unconditional: 4763, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 937760, independent: 936754, independent conditional: 0, independent unconditional: 936754, dependent: 1006, dependent conditional: 0, dependent unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1496561, independent: 555044, independent conditional: 0, independent unconditional: 555044, dependent: 3757, dependent conditional: 0, dependent unconditional: 3757, unknown: 937760, unknown conditional: 0, unknown unconditional: 937760] , Statistics on independence cache: Total cache size (in pairs): 19251, Positive cache size: 18797, Positive conditional cache size: 0, Positive unconditional cache size: 18797, Negative cache size: 454, Negative conditional cache size: 0, Negative unconditional cache size: 454, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.8s, 1399 PlacesBefore, 656 PlacesAfterwards, 1586 TransitionsBefore, 841 TransitionsAfterwards, 2297792 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 747 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 193 ConcurrentYvCompositions, 2 ChoiceCompositions, 971 TotalNumberOfCompositions, 5795023 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1759094, independent: 1754221, independent conditional: 0, independent unconditional: 1754221, dependent: 4873, dependent conditional: 0, dependent unconditional: 4873, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1000629, independent: 999603, independent conditional: 0, independent unconditional: 999603, dependent: 1026, dependent conditional: 0, dependent unconditional: 1026, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1759094, independent: 754618, independent conditional: 0, independent unconditional: 754618, dependent: 3847, dependent conditional: 0, dependent unconditional: 3847, unknown: 1000629, unknown conditional: 0, unknown unconditional: 1000629] , Statistics on independence cache: Total cache size (in pairs): 42363, Positive cache size: 41898, Positive conditional cache size: 0, Positive unconditional cache size: 41898, Negative cache size: 465, Negative conditional cache size: 0, Negative unconditional cache size: 465, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.2s, 1428 PlacesBefore, 670 PlacesAfterwards, 1619 TransitionsBefore, 859 TransitionsAfterwards, 2397376 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 754 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 197 ConcurrentYvCompositions, 2 ChoiceCompositions, 982 TotalNumberOfCompositions, 6037023 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1770679, independent: 1765705, independent conditional: 0, independent unconditional: 1765705, dependent: 4974, dependent conditional: 0, dependent unconditional: 4974, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1032415, independent: 1031362, independent conditional: 0, independent unconditional: 1031362, dependent: 1053, dependent conditional: 0, dependent unconditional: 1053, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1770679, independent: 734343, independent conditional: 0, independent unconditional: 734343, dependent: 3921, dependent conditional: 0, dependent unconditional: 3921, unknown: 1032415, unknown conditional: 0, unknown unconditional: 1032415] , Statistics on independence cache: Total cache size (in pairs): 33727, Positive cache size: 33252, Positive conditional cache size: 0, Positive unconditional cache size: 33252, Negative cache size: 475, Negative conditional cache size: 0, Negative unconditional cache size: 475, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.3s, 1457 PlacesBefore, 684 PlacesAfterwards, 1652 TransitionsBefore, 877 TransitionsAfterwards, 2499072 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 781 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 201 ConcurrentYvCompositions, 2 ChoiceCompositions, 1013 TotalNumberOfCompositions, 6271145 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1686155, independent: 1681110, independent conditional: 0, independent unconditional: 1681110, dependent: 5045, dependent conditional: 0, dependent unconditional: 5045, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1062875, independent: 1061971, independent conditional: 0, independent unconditional: 1061971, dependent: 904, dependent conditional: 0, dependent unconditional: 904, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1686155, independent: 619139, independent conditional: 0, independent unconditional: 619139, dependent: 4141, dependent conditional: 0, dependent unconditional: 4141, unknown: 1062875, unknown conditional: 0, unknown unconditional: 1062875] , Statistics on independence cache: Total cache size (in pairs): 21331, Positive cache size: 20846, Positive conditional cache size: 0, Positive unconditional cache size: 20846, Negative cache size: 485, Negative conditional cache size: 0, Negative unconditional cache size: 485, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.1s, 1486 PlacesBefore, 698 PlacesAfterwards, 1685 TransitionsBefore, 896 TransitionsAfterwards, 2602880 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 789 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 205 ConcurrentYvCompositions, 1 ChoiceCompositions, 1024 TotalNumberOfCompositions, 6528482 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1997373, independent: 1992213, independent conditional: 0, independent unconditional: 1992213, dependent: 5160, dependent conditional: 0, dependent unconditional: 5160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1132740, independent: 1131661, independent conditional: 0, independent unconditional: 1131661, dependent: 1079, dependent conditional: 0, dependent unconditional: 1079, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1997373, independent: 860552, independent conditional: 0, independent unconditional: 860552, dependent: 4081, dependent conditional: 0, dependent unconditional: 4081, unknown: 1132740, unknown conditional: 0, unknown unconditional: 1132740] , Statistics on independence cache: Total cache size (in pairs): 48137, Positive cache size: 47643, Positive conditional cache size: 0, Positive unconditional cache size: 47643, Negative cache size: 494, Negative conditional cache size: 0, Negative unconditional cache size: 494, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.1s, 1515 PlacesBefore, 712 PlacesAfterwards, 1718 TransitionsBefore, 914 TransitionsAfterwards, 2708800 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 806 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 209 ConcurrentYvCompositions, 1 ChoiceCompositions, 1045 TotalNumberOfCompositions, 6801329 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2004082, independent: 1998831, independent conditional: 0, independent unconditional: 1998831, dependent: 5251, dependent conditional: 0, dependent unconditional: 5251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1168570, independent: 1167466, independent conditional: 0, independent unconditional: 1167466, dependent: 1104, dependent conditional: 0, dependent unconditional: 1104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2004082, independent: 831365, independent conditional: 0, independent unconditional: 831365, dependent: 4147, dependent conditional: 0, dependent unconditional: 4147, unknown: 1168570, unknown conditional: 0, unknown unconditional: 1168570] , Statistics on independence cache: Total cache size (in pairs): 37875, Positive cache size: 37371, Positive conditional cache size: 0, Positive unconditional cache size: 37371, Negative cache size: 504, Negative conditional cache size: 0, Negative unconditional cache size: 504, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.6s, 1544 PlacesBefore, 726 PlacesAfterwards, 1751 TransitionsBefore, 932 TransitionsAfterwards, 2816832 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 822 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 213 ConcurrentYvCompositions, 1 ChoiceCompositions, 1065 TotalNumberOfCompositions, 7035809 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1889879, independent: 1884541, independent conditional: 0, independent unconditional: 1884541, dependent: 5338, dependent conditional: 0, dependent unconditional: 5338, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1198300, independent: 1197243, independent conditional: 0, independent unconditional: 1197243, dependent: 1057, dependent conditional: 0, dependent unconditional: 1057, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1889879, independent: 687298, independent conditional: 0, independent unconditional: 687298, dependent: 4281, dependent conditional: 0, dependent unconditional: 4281, unknown: 1198300, unknown conditional: 0, unknown unconditional: 1198300] , Statistics on independence cache: Total cache size (in pairs): 24664, Positive cache size: 24150, Positive conditional cache size: 0, Positive unconditional cache size: 24150, Negative cache size: 514, Negative conditional cache size: 0, Negative unconditional cache size: 514, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.1s, 1573 PlacesBefore, 740 PlacesAfterwards, 1784 TransitionsBefore, 950 TransitionsAfterwards, 2926976 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 841 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 217 ConcurrentYvCompositions, 1 ChoiceCompositions, 1088 TotalNumberOfCompositions, 7358444 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2223183, independent: 2217716, independent conditional: 0, independent unconditional: 2217716, dependent: 5467, dependent conditional: 0, dependent unconditional: 5467, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1272099, independent: 1270950, independent conditional: 0, independent unconditional: 1270950, dependent: 1149, dependent conditional: 0, dependent unconditional: 1149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2223183, independent: 946766, independent conditional: 0, independent unconditional: 946766, dependent: 4318, dependent conditional: 0, dependent unconditional: 4318, unknown: 1272099, unknown conditional: 0, unknown unconditional: 1272099] , Statistics on independence cache: Total cache size (in pairs): 53045, Positive cache size: 52521, Positive conditional cache size: 0, Positive unconditional cache size: 52521, 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: 16.3s, 1602 PlacesBefore, 754 PlacesAfterwards, 1817 TransitionsBefore, 968 TransitionsAfterwards, 3039232 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 853 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 221 ConcurrentYvCompositions, 1 ChoiceCompositions, 1104 TotalNumberOfCompositions, 7616342 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2290728, independent: 2285160, independent conditional: 0, independent unconditional: 2285160, dependent: 5568, dependent conditional: 0, dependent unconditional: 5568, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1312585, independent: 1311488, independent conditional: 0, independent unconditional: 1311488, dependent: 1097, dependent conditional: 0, dependent unconditional: 1097, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2290728, independent: 973672, independent conditional: 0, independent unconditional: 973672, dependent: 4471, dependent conditional: 0, dependent unconditional: 4471, unknown: 1312585, unknown conditional: 0, unknown unconditional: 1312585] , Statistics on independence cache: Total cache size (in pairs): 47792, Positive cache size: 47260, Positive conditional cache size: 0, Positive unconditional cache size: 47260, Negative cache size: 532, Negative conditional cache size: 0, Negative unconditional cache size: 532, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.2s, 1631 PlacesBefore, 768 PlacesAfterwards, 1850 TransitionsBefore, 986 TransitionsAfterwards, 3153600 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 868 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 225 ConcurrentYvCompositions, 1 ChoiceCompositions, 1123 TotalNumberOfCompositions, 7942002 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2169702, independent: 2164013, independent conditional: 0, independent unconditional: 2164013, dependent: 5689, dependent conditional: 0, dependent unconditional: 5689, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1340690, independent: 1339661, independent conditional: 0, independent unconditional: 1339661, dependent: 1029, dependent conditional: 0, dependent unconditional: 1029, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2169702, independent: 824352, independent conditional: 0, independent unconditional: 824352, dependent: 4660, dependent conditional: 0, dependent unconditional: 4660, unknown: 1340690, unknown conditional: 0, unknown unconditional: 1340690] , Statistics on independence cache: Total cache size (in pairs): 28064, Positive cache size: 27520, Positive conditional cache size: 0, Positive unconditional cache size: 27520, Negative cache size: 544, Negative conditional cache size: 0, Negative unconditional cache size: 544, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.3s, 1660 PlacesBefore, 782 PlacesAfterwards, 1883 TransitionsBefore, 1004 TransitionsAfterwards, 3270080 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 885 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 228 ConcurrentYvCompositions, 1 ChoiceCompositions, 1143 TotalNumberOfCompositions, 8200457 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2226431, independent: 2220660, independent conditional: 0, independent unconditional: 2220660, dependent: 5771, dependent conditional: 0, dependent unconditional: 5771, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1400361, independent: 1399047, independent conditional: 0, independent unconditional: 1399047, dependent: 1314, dependent conditional: 0, dependent unconditional: 1314, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2226431, independent: 821613, independent conditional: 0, independent unconditional: 821613, dependent: 4457, dependent conditional: 0, dependent unconditional: 4457, unknown: 1400361, unknown conditional: 0, unknown unconditional: 1400361] , Statistics on independence cache: Total cache size (in pairs): 34574, Positive cache size: 33956, Positive conditional cache size: 0, Positive unconditional cache size: 33956, Negative cache size: 618, Negative conditional cache size: 0, Negative unconditional cache size: 618, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.8s, 1689 PlacesBefore, 796 PlacesAfterwards, 1916 TransitionsBefore, 1021 TransitionsAfterwards, 3388672 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 904 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 232 ConcurrentYvCompositions, 2 ChoiceCompositions, 1167 TotalNumberOfCompositions, 9541250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2788259, independent: 2781390, independent conditional: 0, independent unconditional: 2781390, dependent: 6869, dependent conditional: 0, dependent unconditional: 6869, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1477456, independent: 1476171, independent conditional: 0, independent unconditional: 1476171, dependent: 1285, dependent conditional: 0, dependent unconditional: 1285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2788259, independent: 1305219, independent conditional: 0, independent unconditional: 1305219, dependent: 5584, dependent conditional: 0, dependent unconditional: 5584, unknown: 1477456, unknown conditional: 0, unknown unconditional: 1477456] , Statistics on independence cache: Total cache size (in pairs): 61812, Positive cache size: 61247, Positive conditional cache size: 0, Positive unconditional cache size: 61247, Negative cache size: 565, Negative conditional cache size: 0, Negative unconditional cache size: 565, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.3s, 1718 PlacesBefore, 810 PlacesAfterwards, 1949 TransitionsBefore, 1040 TransitionsAfterwards, 3509376 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 918 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 236 ConcurrentYvCompositions, 1 ChoiceCompositions, 1184 TotalNumberOfCompositions, 9759171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2715302, independent: 2708391, independent conditional: 0, independent unconditional: 2708391, dependent: 6911, dependent conditional: 0, dependent unconditional: 6911, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1522966, independent: 1521768, independent conditional: 0, independent unconditional: 1521768, dependent: 1198, dependent conditional: 0, dependent unconditional: 1198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2715302, independent: 1186623, independent conditional: 0, independent unconditional: 1186623, dependent: 5713, dependent conditional: 0, dependent unconditional: 5713, unknown: 1522966, unknown conditional: 0, unknown unconditional: 1522966] , Statistics on independence cache: Total cache size (in pairs): 54789, Positive cache size: 54215, Positive conditional cache size: 0, Positive unconditional cache size: 54215, Negative cache size: 574, Negative conditional cache size: 0, Negative unconditional cache size: 574, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.8s, 1747 PlacesBefore, 824 PlacesAfterwards, 1982 TransitionsBefore, 1058 TransitionsAfterwards, 3632192 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 940 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 240 ConcurrentYvCompositions, 1 ChoiceCompositions, 1210 TotalNumberOfCompositions, 10214905 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2634211, independent: 2627130, independent conditional: 0, independent unconditional: 2627130, dependent: 7081, dependent conditional: 0, dependent unconditional: 7081, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1554929, independent: 1553649, independent conditional: 0, independent unconditional: 1553649, dependent: 1280, dependent conditional: 0, dependent unconditional: 1280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2634211, independent: 1073481, independent conditional: 0, independent unconditional: 1073481, dependent: 5801, dependent conditional: 0, dependent unconditional: 5801, unknown: 1554929, unknown conditional: 0, unknown unconditional: 1554929] , Statistics on independence cache: Total cache size (in pairs): 37050, Positive cache size: 36466, Positive conditional cache size: 0, Positive unconditional cache size: 36466, Negative cache size: 584, Negative conditional cache size: 0, Negative unconditional cache size: 584, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.1s, 1776 PlacesBefore, 838 PlacesAfterwards, 2015 TransitionsBefore, 1075 TransitionsAfterwards, 3757120 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 951 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 244 ConcurrentYvCompositions, 2 ChoiceCompositions, 1226 TotalNumberOfCompositions, 9409736 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2536079, independent: 2529911, independent conditional: 0, independent unconditional: 2529911, dependent: 6168, dependent conditional: 0, dependent unconditional: 6168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1600633, independent: 1599420, independent conditional: 0, independent unconditional: 1599420, dependent: 1213, dependent conditional: 0, dependent unconditional: 1213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2536079, independent: 930491, independent conditional: 0, independent unconditional: 930491, dependent: 4955, dependent conditional: 0, dependent unconditional: 4955, unknown: 1600633, unknown conditional: 0, unknown unconditional: 1600633] , Statistics on independence cache: Total cache size (in pairs): 33369, Positive cache size: 32775, Positive conditional cache size: 0, Positive unconditional cache size: 32775, Negative cache size: 594, Negative conditional cache size: 0, Negative unconditional cache size: 594, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.6s, 1805 PlacesBefore, 852 PlacesAfterwards, 2048 TransitionsBefore, 1093 TransitionsAfterwards, 3884160 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 959 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 248 ConcurrentYvCompositions, 2 ChoiceCompositions, 1238 TotalNumberOfCompositions, 9767753 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3072479, independent: 3066163, independent conditional: 0, independent unconditional: 3066163, dependent: 6316, dependent conditional: 0, dependent unconditional: 6316, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1694648, independent: 1693224, independent conditional: 0, independent unconditional: 1693224, dependent: 1424, dependent conditional: 0, dependent unconditional: 1424, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3072479, independent: 1372939, independent conditional: 0, independent unconditional: 1372939, dependent: 4892, dependent conditional: 0, dependent unconditional: 4892, unknown: 1694648, unknown conditional: 0, unknown unconditional: 1694648] , Statistics on independence cache: Total cache size (in pairs): 75388, Positive cache size: 74783, Positive conditional cache size: 0, Positive unconditional cache size: 74783, Negative cache size: 605, Negative conditional cache size: 0, Negative unconditional cache size: 605, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.1s, 1834 PlacesBefore, 866 PlacesAfterwards, 2081 TransitionsBefore, 1111 TransitionsAfterwards, 4013312 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 976 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 252 ConcurrentYvCompositions, 2 ChoiceCompositions, 1259 TotalNumberOfCompositions, 10089811 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3208316, independent: 3201902, independent conditional: 0, independent unconditional: 3201902, dependent: 6414, dependent conditional: 0, dependent unconditional: 6414, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1750386, independent: 1748923, independent conditional: 0, independent unconditional: 1748923, dependent: 1463, dependent conditional: 0, dependent unconditional: 1463, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3208316, independent: 1452979, independent conditional: 0, independent unconditional: 1452979, dependent: 4951, dependent conditional: 0, dependent unconditional: 4951, unknown: 1750386, unknown conditional: 0, unknown unconditional: 1750386] , Statistics on independence cache: Total cache size (in pairs): 78115, Positive cache size: 77500, Positive conditional cache size: 0, Positive unconditional cache size: 77500, Negative cache size: 615, Negative conditional cache size: 0, Negative unconditional cache size: 615, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.9s, 1863 PlacesBefore, 880 PlacesAfterwards, 2114 TransitionsBefore, 1130 TransitionsAfterwards, 4144576 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 1008 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 256 ConcurrentYvCompositions, 1 ChoiceCompositions, 1294 TotalNumberOfCompositions, 10500423 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3168758, independent: 3162220, independent conditional: 0, independent unconditional: 3162220, dependent: 6538, dependent conditional: 0, dependent unconditional: 6538, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1798063, independent: 1796770, independent conditional: 0, independent unconditional: 1796770, dependent: 1293, dependent conditional: 0, dependent unconditional: 1293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3168758, independent: 1365450, independent conditional: 0, independent unconditional: 1365450, dependent: 5245, dependent conditional: 0, dependent unconditional: 5245, unknown: 1798063, unknown conditional: 0, unknown unconditional: 1798063] , Statistics on independence cache: Total cache size (in pairs): 67158, Positive cache size: 66534, Positive conditional cache size: 0, Positive unconditional cache size: 66534, Negative cache size: 624, Negative conditional cache size: 0, Negative unconditional cache size: 624, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.3s, 1892 PlacesBefore, 894 PlacesAfterwards, 2147 TransitionsBefore, 1148 TransitionsAfterwards, 4277952 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 1020 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 260 ConcurrentYvCompositions, 1 ChoiceCompositions, 1310 TotalNumberOfCompositions, 11941431 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3141990, independent: 3134347, independent conditional: 0, independent unconditional: 3134347, dependent: 7643, dependent conditional: 0, dependent unconditional: 7643, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1837492, independent: 1836166, independent conditional: 0, independent unconditional: 1836166, dependent: 1326, dependent conditional: 0, dependent unconditional: 1326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3141990, independent: 1298181, independent conditional: 0, independent unconditional: 1298181, dependent: 6317, dependent conditional: 0, dependent unconditional: 6317, unknown: 1837492, unknown conditional: 0, unknown unconditional: 1837492] , Statistics on independence cache: Total cache size (in pairs): 50510, Positive cache size: 49877, Positive conditional cache size: 0, Positive unconditional cache size: 49877, Negative cache size: 633, Negative conditional cache size: 0, Negative unconditional cache size: 633, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: AutomataOperationCanceledException: Timeout or canceled by user. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AutomataOperationCanceledException: Timeout or canceled by user.: de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.computeUnfolding(PetriNetUnfolderBase.java:200) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown