/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.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 00:07:01,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 00:07:01,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 00:07:01,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 00:07:01,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 00:07:01,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 00:07:01,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 00:07:01,461 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 00:07:01,478 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 00:07:01,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 00:07:01,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 00:07:01,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 00:07:01,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 00:07:01,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 00:07:01,480 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 00:07:01,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 00:07:01,480 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 00:07:01,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 00:07:01,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 00:07:01,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 00:07:01,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 00:07:01,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 00:07:01,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 00:07:01,481 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 00:07:01,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 00:07:01,482 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 00:07:01,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 00:07:01,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 00:07:01,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 00:07:01,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 00:07:01,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 00:07:01,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:07:01,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 00:07:01,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 00:07:01,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 00:07:01,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 00:07:01,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 00:07:01,483 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 00:07:01,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 00:07:01,484 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 00:07:01,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 00:07:01,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 00:07:01,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 00:07:01,729 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 00:07:01,730 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 00:07:01,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i [2023-01-28 00:07:03,017 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 00:07:03,308 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 00:07:03,308 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i [2023-01-28 00:07:03,325 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a511eb6e/9d7e2a109b6148c19c08368ebea6af69/FLAGd0531f9a4 [2023-01-28 00:07:03,342 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a511eb6e/9d7e2a109b6148c19c08368ebea6af69 [2023-01-28 00:07:03,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 00:07:03,346 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 00:07:03,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 00:07:03,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 00:07:03,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 00:07:03,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a7864b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03, skipping insertion in model container [2023-01-28 00:07:03,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 00:07:03,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 00:07:03,737 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i[31166,31179] [2023-01-28 00:07:03,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:07:03,763 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 00:07:03,808 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i[31166,31179] [2023-01-28 00:07:03,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:07:03,840 INFO L208 MainTranslator]: Completed translation [2023-01-28 00:07:03,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03 WrapperNode [2023-01-28 00:07:03,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 00:07:03,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 00:07:03,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 00:07:03,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 00:07:03,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,920 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 188 [2023-01-28 00:07:03,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 00:07:03,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 00:07:03,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 00:07:03,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 00:07:03,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,977 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 00:07:03,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 00:07:03,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 00:07:03,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 00:07:03,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (1/1) ... [2023-01-28 00:07:03,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:07:04,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 00:07:04,029 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) [2023-01-28 00:07:04,049 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 [2023-01-28 00:07:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 00:07:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-01-28 00:07:04,065 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-01-28 00:07:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 00:07:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 00:07:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 00:07:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 00:07:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 00:07:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 00:07:04,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 00:07:04,067 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 00:07:04,268 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 00:07:04,269 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 00:07:04,593 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 00:07:04,765 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 00:07:04,766 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-01-28 00:07:04,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:07:04 BoogieIcfgContainer [2023-01-28 00:07:04,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 00:07:04,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 00:07:04,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 00:07:04,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 00:07:04,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:07:03" (1/3) ... [2023-01-28 00:07:04,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1489ddfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:07:04, skipping insertion in model container [2023-01-28 00:07:04,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:03" (2/3) ... [2023-01-28 00:07:04,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1489ddfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:07:04, skipping insertion in model container [2023-01-28 00:07:04,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:07:04" (3/3) ... [2023-01-28 00:07:04,775 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-1.i [2023-01-28 00:07:04,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 00:07:04,793 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 00:07:04,793 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 00:07:04,861 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:04,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:04,953 INFO L130 PetriNetUnfolder]: 11/124 cut-off events. [2023-01-28 00:07:04,954 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:07:04,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 11/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2023-01-28 00:07:04,959 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:04,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:04,965 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:04,973 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:04,977 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:04,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:05,007 INFO L130 PetriNetUnfolder]: 11/124 cut-off events. [2023-01-28 00:07:05,007 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:07:05,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 11/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2023-01-28 00:07:05,010 INFO L119 LiptonReduction]: Number of co-enabled transitions 2028 [2023-01-28 00:07:09,050 INFO L134 LiptonReduction]: Checked pairs total: 2167 [2023-01-28 00:07:09,051 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-01-28 00:07:09,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:07:09,069 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:07:09,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:07:09,073 INFO L130 PetriNetUnfolder]: 2/13 cut-off events. [2023-01-28 00:07:09,073 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:07:09,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:07:09,074 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-28 00:07:09,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:07:09,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:07:09,079 INFO L85 PathProgramCache]: Analyzing trace with hash 174361225, now seen corresponding path program 1 times [2023-01-28 00:07:09,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:07:09,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632351312] [2023-01-28 00:07:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:07:09,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:07:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:09,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:07:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:09,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:07:09,220 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:07:09,221 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:07:09,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 00:07:09,222 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:07:09,225 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:07:09,225 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:07:09,226 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-28 00:07:09,274 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:09,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:09,312 INFO L130 PetriNetUnfolder]: 21/215 cut-off events. [2023-01-28 00:07:09,312 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:07:09,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2023-01-28 00:07:09,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:09,318 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:09,318 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:09,318 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:09,318 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:09,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:09,347 INFO L130 PetriNetUnfolder]: 21/215 cut-off events. [2023-01-28 00:07:09,348 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:07:09,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2023-01-28 00:07:09,359 INFO L119 LiptonReduction]: Number of co-enabled transitions 16380 [2023-01-28 00:07:14,321 INFO L134 LiptonReduction]: Checked pairs total: 33585 [2023-01-28 00:07:14,321 INFO L136 LiptonReduction]: Total number of compositions: 155 [2023-01-28 00:07:14,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:07:14,325 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:07:14,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:07:14,329 INFO L130 PetriNetUnfolder]: 4/34 cut-off events. [2023-01-28 00:07:14,330 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:07:14,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:07:14,330 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-01-28 00:07:14,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:07:14,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:07:14,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1971217253, now seen corresponding path program 1 times [2023-01-28 00:07:14,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:07:14,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717065234] [2023-01-28 00:07:14,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:07:14,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:07:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:14,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:07:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:14,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:07:14,384 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:07:14,384 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:07:14,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 00:07:14,384 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:07:14,393 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:07:14,393 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:07:14,393 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-28 00:07:14,495 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:14,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:14,541 INFO L130 PetriNetUnfolder]: 31/306 cut-off events. [2023-01-28 00:07:14,542 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:07:14,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 306 events. 31/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 814 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2023-01-28 00:07:14,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:14,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:14,551 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:14,551 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:14,551 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:14,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:14,606 INFO L130 PetriNetUnfolder]: 31/306 cut-off events. [2023-01-28 00:07:14,606 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:07:14,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 306 events. 31/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 814 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2023-01-28 00:07:14,628 INFO L119 LiptonReduction]: Number of co-enabled transitions 43056 [2023-01-28 00:07:21,073 INFO L134 LiptonReduction]: Checked pairs total: 78907 [2023-01-28 00:07:21,073 INFO L136 LiptonReduction]: Total number of compositions: 218 [2023-01-28 00:07:21,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:07:21,080 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:07:21,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:07:21,086 INFO L130 PetriNetUnfolder]: 8/62 cut-off events. [2023-01-28 00:07:21,087 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:07:21,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:07:21,087 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-01-28 00:07:21,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:07:21,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:07:21,090 INFO L85 PathProgramCache]: Analyzing trace with hash -271960691, now seen corresponding path program 1 times [2023-01-28 00:07:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:07:21,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823313914] [2023-01-28 00:07:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:07:21,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:07:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:21,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:07:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:21,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:07:21,156 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:07:21,161 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:07:21,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 00:07:21,162 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:07:21,163 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:07:21,163 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:07:21,163 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-28 00:07:21,218 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:21,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:21,283 INFO L130 PetriNetUnfolder]: 41/397 cut-off events. [2023-01-28 00:07:21,283 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:07:21,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 397 events. 41/397 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1280 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 324. Up to 10 conditions per place. [2023-01-28 00:07:21,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:21,293 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:21,293 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:21,293 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:21,294 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:21,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:21,357 INFO L130 PetriNetUnfolder]: 41/397 cut-off events. [2023-01-28 00:07:21,358 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:07:21,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 397 events. 41/397 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1280 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 324. Up to 10 conditions per place. [2023-01-28 00:07:21,384 INFO L119 LiptonReduction]: Number of co-enabled transitions 82056 [2023-01-28 00:07:28,850 INFO L134 LiptonReduction]: Checked pairs total: 163123 [2023-01-28 00:07:28,851 INFO L136 LiptonReduction]: Total number of compositions: 282 [2023-01-28 00:07:28,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:07:28,853 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:07:28,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:07:28,863 INFO L130 PetriNetUnfolder]: 16/101 cut-off events. [2023-01-28 00:07:28,863 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:07:28,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:07:28,863 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-01-28 00:07:28,863 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:07:28,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:07:28,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1535314522, now seen corresponding path program 1 times [2023-01-28 00:07:28,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:07:28,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469497581] [2023-01-28 00:07:28,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:07:28,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:07:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:28,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:07:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:28,911 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:07:28,911 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:07:28,912 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:07:28,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 00:07:28,912 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:07:28,912 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:07:28,913 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:07:28,913 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-01-28 00:07:28,977 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:28,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 430 transitions, 905 flow [2023-01-28 00:07:29,070 INFO L130 PetriNetUnfolder]: 51/488 cut-off events. [2023-01-28 00:07:29,070 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:07:29,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 488 events. 51/488 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1751 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 410. Up to 12 conditions per place. [2023-01-28 00:07:29,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 395 places, 430 transitions, 905 flow [2023-01-28 00:07:29,085 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 395 places, 430 transitions, 905 flow [2023-01-28 00:07:29,085 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:29,086 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 430 transitions, 905 flow [2023-01-28 00:07:29,086 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 430 transitions, 905 flow [2023-01-28 00:07:29,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 430 transitions, 905 flow [2023-01-28 00:07:29,172 INFO L130 PetriNetUnfolder]: 51/488 cut-off events. [2023-01-28 00:07:29,172 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:07:29,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 488 events. 51/488 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1751 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 410. Up to 12 conditions per place. [2023-01-28 00:07:29,286 INFO L119 LiptonReduction]: Number of co-enabled transitions 133380 [2023-01-28 00:07:38,507 INFO L134 LiptonReduction]: Checked pairs total: 266074 [2023-01-28 00:07:38,507 INFO L136 LiptonReduction]: Total number of compositions: 342 [2023-01-28 00:07:38,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:07:38,510 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:07:38,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:07:38,521 INFO L130 PetriNetUnfolder]: 22/128 cut-off events. [2023-01-28 00:07:38,521 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:07:38,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:07:38,521 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:07:38,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:07:38,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:07:38,522 INFO L85 PathProgramCache]: Analyzing trace with hash -821437459, now seen corresponding path program 1 times [2023-01-28 00:07:38,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:07:38,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247361798] [2023-01-28 00:07:38,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:07:38,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:07:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:38,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:07:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:38,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:07:38,577 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:07:38,577 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:07:38,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 00:07:38,577 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:07:38,578 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:07:38,578 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:07:38,578 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-01-28 00:07:38,655 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:38,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 509 transitions, 1078 flow [2023-01-28 00:07:38,790 INFO L130 PetriNetUnfolder]: 61/579 cut-off events. [2023-01-28 00:07:38,791 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:07:38,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 579 events. 61/579 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2262 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 507. Up to 14 conditions per place. [2023-01-28 00:07:38,805 INFO L82 GeneralOperation]: Start removeDead. Operand has 467 places, 509 transitions, 1078 flow [2023-01-28 00:07:38,816 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 467 places, 509 transitions, 1078 flow [2023-01-28 00:07:38,816 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:38,816 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 467 places, 509 transitions, 1078 flow [2023-01-28 00:07:38,816 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 467 places, 509 transitions, 1078 flow [2023-01-28 00:07:38,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 509 transitions, 1078 flow [2023-01-28 00:07:38,946 INFO L130 PetriNetUnfolder]: 61/579 cut-off events. [2023-01-28 00:07:38,946 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:07:38,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 579 events. 61/579 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2262 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 507. Up to 14 conditions per place. [2023-01-28 00:07:39,015 INFO L119 LiptonReduction]: Number of co-enabled transitions 197028 [2023-01-28 00:07:49,594 INFO L134 LiptonReduction]: Checked pairs total: 408501 [2023-01-28 00:07:49,594 INFO L136 LiptonReduction]: Total number of compositions: 409 [2023-01-28 00:07:49,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:07:49,596 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:07:49,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:07:49,618 INFO L130 PetriNetUnfolder]: 28/162 cut-off events. [2023-01-28 00:07:49,618 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:07:49,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:07:49,618 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:07:49,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:07:49,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:07:49,619 INFO L85 PathProgramCache]: Analyzing trace with hash 657747243, now seen corresponding path program 1 times [2023-01-28 00:07:49,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:07:49,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740949191] [2023-01-28 00:07:49,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:07:49,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:07:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:49,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:07:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:49,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:07:49,695 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:07:49,695 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:07:49,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 00:07:49,696 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:07:49,699 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:07:49,699 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:07:49,699 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-01-28 00:07:49,788 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:49,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 588 transitions, 1253 flow [2023-01-28 00:07:49,981 INFO L130 PetriNetUnfolder]: 71/670 cut-off events. [2023-01-28 00:07:49,981 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:07:50,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 670 events. 71/670 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2752 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-01-28 00:07:50,001 INFO L82 GeneralOperation]: Start removeDead. Operand has 539 places, 588 transitions, 1253 flow [2023-01-28 00:07:50,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 539 places, 588 transitions, 1253 flow [2023-01-28 00:07:50,009 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:50,010 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 539 places, 588 transitions, 1253 flow [2023-01-28 00:07:50,010 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 539 places, 588 transitions, 1253 flow [2023-01-28 00:07:50,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 588 transitions, 1253 flow [2023-01-28 00:07:50,221 INFO L130 PetriNetUnfolder]: 71/670 cut-off events. [2023-01-28 00:07:50,221 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:07:50,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 670 events. 71/670 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2752 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-01-28 00:07:50,292 INFO L119 LiptonReduction]: Number of co-enabled transitions 273000 [2023-01-28 00:08:02,998 INFO L134 LiptonReduction]: Checked pairs total: 601155 [2023-01-28 00:08:02,998 INFO L136 LiptonReduction]: Total number of compositions: 471 [2023-01-28 00:08:03,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:03,000 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:03,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:03,065 INFO L130 PetriNetUnfolder]: 36/197 cut-off events. [2023-01-28 00:08:03,065 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:08:03,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:03,065 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:03,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:03,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:03,066 INFO L85 PathProgramCache]: Analyzing trace with hash 31876957, now seen corresponding path program 1 times [2023-01-28 00:08:03,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:03,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479482215] [2023-01-28 00:08:03,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:03,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:03,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:03,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:03,142 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:03,142 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:03,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 00:08:03,143 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:03,143 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:03,143 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:03,144 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-01-28 00:08:03,249 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:03,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:03,456 INFO L130 PetriNetUnfolder]: 81/761 cut-off events. [2023-01-28 00:08:03,456 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:08:03,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 761 events. 81/761 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3271 event pairs, 0 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 704. Up to 18 conditions per place. [2023-01-28 00:08:03,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:03,487 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:03,487 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:03,488 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:03,488 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:03,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:03,682 INFO L130 PetriNetUnfolder]: 81/761 cut-off events. [2023-01-28 00:08:03,682 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:08:03,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 761 events. 81/761 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3271 event pairs, 0 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 704. Up to 18 conditions per place. [2023-01-28 00:08:03,762 INFO L119 LiptonReduction]: Number of co-enabled transitions 361296 [2023-01-28 00:08:17,113 INFO L134 LiptonReduction]: Checked pairs total: 812240 [2023-01-28 00:08:17,114 INFO L136 LiptonReduction]: Total number of compositions: 534 [2023-01-28 00:08:17,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:17,116 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:17,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:17,145 INFO L130 PetriNetUnfolder]: 43/234 cut-off events. [2023-01-28 00:08:17,145 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:08:17,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:17,145 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:17,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:17,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:17,146 INFO L85 PathProgramCache]: Analyzing trace with hash -277617304, now seen corresponding path program 1 times [2023-01-28 00:08:17,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:17,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448890064] [2023-01-28 00:08:17,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:17,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:17,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:17,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:17,188 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:17,188 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:17,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 00:08:17,189 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:17,189 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:17,189 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:17,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-01-28 00:08:17,311 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:17,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:17,590 INFO L130 PetriNetUnfolder]: 91/852 cut-off events. [2023-01-28 00:08:17,590 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:08:17,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 852 events. 91/852 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3787 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 804. Up to 20 conditions per place. [2023-01-28 00:08:17,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:17,612 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:17,612 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:17,612 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:17,613 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:17,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:17,861 INFO L130 PetriNetUnfolder]: 91/852 cut-off events. [2023-01-28 00:08:17,861 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:08:17,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 852 events. 91/852 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3787 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 804. Up to 20 conditions per place. [2023-01-28 00:08:17,955 INFO L119 LiptonReduction]: Number of co-enabled transitions 461916 [2023-01-28 00:08:33,861 INFO L134 LiptonReduction]: Checked pairs total: 929047 [2023-01-28 00:08:33,861 INFO L136 LiptonReduction]: Total number of compositions: 598 [2023-01-28 00:08:33,863 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:33,863 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:33,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:33,892 INFO L130 PetriNetUnfolder]: 50/267 cut-off events. [2023-01-28 00:08:33,892 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:08:33,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:33,893 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:33,893 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:33,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:33,893 INFO L85 PathProgramCache]: Analyzing trace with hash -392173397, now seen corresponding path program 1 times [2023-01-28 00:08:33,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:33,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121160419] [2023-01-28 00:08:33,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:33,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:33,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:33,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:33,944 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:33,944 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:33,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 00:08:33,944 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:33,945 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:33,945 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:33,945 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-01-28 00:08:34,074 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:34,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 755 places, 825 transitions, 1790 flow [2023-01-28 00:08:34,402 INFO L130 PetriNetUnfolder]: 101/943 cut-off events. [2023-01-28 00:08:34,402 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:08:34,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 943 events. 101/943 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4319 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 905. Up to 22 conditions per place. [2023-01-28 00:08:34,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 755 places, 825 transitions, 1790 flow [2023-01-28 00:08:34,449 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 755 places, 825 transitions, 1790 flow [2023-01-28 00:08:34,449 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:34,450 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 755 places, 825 transitions, 1790 flow [2023-01-28 00:08:34,450 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 755 places, 825 transitions, 1790 flow [2023-01-28 00:08:34,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 755 places, 825 transitions, 1790 flow [2023-01-28 00:08:34,850 INFO L130 PetriNetUnfolder]: 101/943 cut-off events. [2023-01-28 00:08:34,850 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:08:34,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 943 events. 101/943 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4319 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 905. Up to 22 conditions per place. [2023-01-28 00:08:34,954 INFO L119 LiptonReduction]: Number of co-enabled transitions 574860 [2023-01-28 00:08:52,503 INFO L134 LiptonReduction]: Checked pairs total: 1167442 [2023-01-28 00:08:52,503 INFO L136 LiptonReduction]: Total number of compositions: 663 [2023-01-28 00:08:52,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:52,505 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:52,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:52,540 INFO L130 PetriNetUnfolder]: 57/301 cut-off events. [2023-01-28 00:08:52,540 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:08:52,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:52,540 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:52,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:52,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:52,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1279378807, now seen corresponding path program 1 times [2023-01-28 00:08:52,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:52,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152701545] [2023-01-28 00:08:52,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:52,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:52,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:52,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:52,613 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:52,614 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:52,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 00:08:52,614 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:52,615 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:52,632 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:52,632 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-01-28 00:08:52,762 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:52,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 827 places, 904 transitions, 1973 flow [2023-01-28 00:08:53,112 INFO L130 PetriNetUnfolder]: 111/1034 cut-off events. [2023-01-28 00:08:53,113 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:08:53,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1034 events. 111/1034 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4832 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1009. Up to 24 conditions per place. [2023-01-28 00:08:53,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 827 places, 904 transitions, 1973 flow [2023-01-28 00:08:53,164 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 827 places, 904 transitions, 1973 flow [2023-01-28 00:08:53,164 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:53,164 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 827 places, 904 transitions, 1973 flow [2023-01-28 00:08:53,164 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 827 places, 904 transitions, 1973 flow [2023-01-28 00:08:53,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 827 places, 904 transitions, 1973 flow [2023-01-28 00:08:53,466 INFO L130 PetriNetUnfolder]: 111/1034 cut-off events. [2023-01-28 00:08:53,466 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:08:53,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1034 events. 111/1034 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4832 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1009. Up to 24 conditions per place. [2023-01-28 00:08:53,689 INFO L119 LiptonReduction]: Number of co-enabled transitions 700128 [2023-01-28 00:09:12,065 INFO L134 LiptonReduction]: Checked pairs total: 1457710 [2023-01-28 00:09:12,065 INFO L136 LiptonReduction]: Total number of compositions: 726 [2023-01-28 00:09:12,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:12,067 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:12,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:12,146 INFO L130 PetriNetUnfolder]: 64/332 cut-off events. [2023-01-28 00:09:12,146 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:09:12,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:12,146 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:12,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:12,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:12,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2091456884, now seen corresponding path program 1 times [2023-01-28 00:09:12,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:12,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245694331] [2023-01-28 00:09:12,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:12,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:12,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:12,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:12,223 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:12,223 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:12,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 00:09:12,224 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:12,224 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:12,224 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:12,224 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-01-28 00:09:12,382 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:12,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:12,805 INFO L130 PetriNetUnfolder]: 121/1125 cut-off events. [2023-01-28 00:09:12,806 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:09:12,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1125 events. 121/1125 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5341 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1114. Up to 26 conditions per place. [2023-01-28 00:09:12,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:12,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:12,870 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:12,870 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:12,870 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:12,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:13,250 INFO L130 PetriNetUnfolder]: 121/1125 cut-off events. [2023-01-28 00:09:13,250 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:09:13,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1125 events. 121/1125 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5341 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1114. Up to 26 conditions per place. [2023-01-28 00:09:13,511 INFO L119 LiptonReduction]: Number of co-enabled transitions 837720 [2023-01-28 00:09:34,082 INFO L134 LiptonReduction]: Checked pairs total: 1744929 [2023-01-28 00:09:34,082 INFO L136 LiptonReduction]: Total number of compositions: 788 [2023-01-28 00:09:34,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:34,084 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:34,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:34,135 INFO L130 PetriNetUnfolder]: 70/367 cut-off events. [2023-01-28 00:09:34,135 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:09:34,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:34,135 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:34,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:34,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:34,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1844041229, now seen corresponding path program 1 times [2023-01-28 00:09:34,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:34,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679767564] [2023-01-28 00:09:34,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:34,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:34,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:34,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:34,205 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:34,205 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:34,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 00:09:34,205 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:34,206 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:34,206 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:34,206 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-01-28 00:09:34,367 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:34,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:09:34,891 INFO L130 PetriNetUnfolder]: 131/1216 cut-off events. [2023-01-28 00:09:34,891 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:09:34,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1216 events. 131/1216 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5848 event pairs, 0 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1220. Up to 28 conditions per place. [2023-01-28 00:09:34,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:09:34,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:09:34,958 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:34,958 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:09:34,958 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:09:34,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:09:35,444 INFO L130 PetriNetUnfolder]: 131/1216 cut-off events. [2023-01-28 00:09:35,445 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:09:35,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1216 events. 131/1216 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5848 event pairs, 0 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1220. Up to 28 conditions per place. [2023-01-28 00:09:35,628 INFO L119 LiptonReduction]: Number of co-enabled transitions 987636 [2023-01-28 00:09:57,857 INFO L134 LiptonReduction]: Checked pairs total: 2255991 [2023-01-28 00:09:57,857 INFO L136 LiptonReduction]: Total number of compositions: 848 [2023-01-28 00:09:57,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:57,862 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:57,862 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:57,934 INFO L130 PetriNetUnfolder]: 79/407 cut-off events. [2023-01-28 00:09:57,934 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:09:57,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:57,935 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:57,935 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:57,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:57,935 INFO L85 PathProgramCache]: Analyzing trace with hash -268375454, now seen corresponding path program 1 times [2023-01-28 00:09:57,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:57,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129190003] [2023-01-28 00:09:57,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:57,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:57,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:57,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:57,997 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:57,997 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:57,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-28 00:09:57,997 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:57,997 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:57,998 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:57,998 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-01-28 00:09:58,153 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:58,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:09:58,649 INFO L130 PetriNetUnfolder]: 141/1307 cut-off events. [2023-01-28 00:09:58,649 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:09:58,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1307 events. 141/1307 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6367 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1327. Up to 30 conditions per place. [2023-01-28 00:09:58,704 INFO L82 GeneralOperation]: Start removeDead. Operand has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:09:58,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:09:58,723 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:58,723 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:09:58,724 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:09:58,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:09:59,196 INFO L130 PetriNetUnfolder]: 141/1307 cut-off events. [2023-01-28 00:09:59,196 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:09:59,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1307 events. 141/1307 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6367 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1327. Up to 30 conditions per place. [2023-01-28 00:09:59,438 INFO L119 LiptonReduction]: Number of co-enabled transitions 1149876 [2023-01-28 00:10:23,442 INFO L134 LiptonReduction]: Checked pairs total: 2617201 [2023-01-28 00:10:23,442 INFO L136 LiptonReduction]: Total number of compositions: 914 [2023-01-28 00:10:23,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:23,443 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:23,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:23,528 INFO L130 PetriNetUnfolder]: 84/437 cut-off events. [2023-01-28 00:10:23,528 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:10:23,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:23,529 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:23,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:23,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:23,529 INFO L85 PathProgramCache]: Analyzing trace with hash 72312746, now seen corresponding path program 1 times [2023-01-28 00:10:23,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:23,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446417997] [2023-01-28 00:10:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:23,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:23,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:23,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:23,594 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:23,595 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:23,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-28 00:10:23,595 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:23,595 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:23,595 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:23,595 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-01-28 00:10:23,797 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:23,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:24,381 INFO L130 PetriNetUnfolder]: 151/1398 cut-off events. [2023-01-28 00:10:24,382 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:10:24,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1398 events. 151/1398 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6913 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1435. Up to 32 conditions per place. [2023-01-28 00:10:24,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:24,463 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:24,463 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:24,463 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:24,463 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:24,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:25,050 INFO L130 PetriNetUnfolder]: 151/1398 cut-off events. [2023-01-28 00:10:25,051 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:10:25,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1398 events. 151/1398 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6913 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1435. Up to 32 conditions per place. [2023-01-28 00:10:25,396 INFO L119 LiptonReduction]: Number of co-enabled transitions 1324440 [2023-01-28 00:10:51,341 INFO L134 LiptonReduction]: Checked pairs total: 2975786 [2023-01-28 00:10:51,341 INFO L136 LiptonReduction]: Total number of compositions: 974 [2023-01-28 00:10:51,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:51,343 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:51,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:51,469 INFO L130 PetriNetUnfolder]: 91/469 cut-off events. [2023-01-28 00:10:51,469 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:10:51,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:51,470 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] [2023-01-28 00:10:51,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:51,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:51,470 INFO L85 PathProgramCache]: Analyzing trace with hash 459114490, now seen corresponding path program 1 times [2023-01-28 00:10:51,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:51,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386248219] [2023-01-28 00:10:51,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:51,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:51,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:51,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:51,540 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:51,540 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:51,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-28 00:10:51,540 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:51,541 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:51,541 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:51,541 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-01-28 00:10:51,715 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:51,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:10:52,418 INFO L130 PetriNetUnfolder]: 161/1489 cut-off events. [2023-01-28 00:10:52,418 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:10:52,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1489 events. 161/1489 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7400 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1544. Up to 34 conditions per place. [2023-01-28 00:10:52,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:10:52,533 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:10:52,534 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:52,534 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:10:52,534 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:10:52,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:10:53,290 INFO L130 PetriNetUnfolder]: 161/1489 cut-off events. [2023-01-28 00:10:53,290 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:10:53,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1489 events. 161/1489 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7400 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1544. Up to 34 conditions per place. [2023-01-28 00:10:53,576 INFO L119 LiptonReduction]: Number of co-enabled transitions 1511328 [2023-01-28 00:11:20,725 INFO L134 LiptonReduction]: Checked pairs total: 3418394 [2023-01-28 00:11:20,726 INFO L136 LiptonReduction]: Total number of compositions: 1043 [2023-01-28 00:11:20,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:20,728 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:20,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:20,809 INFO L130 PetriNetUnfolder]: 98/507 cut-off events. [2023-01-28 00:11:20,809 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:11:20,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:20,810 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] [2023-01-28 00:11:20,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:20,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:20,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1151175113, now seen corresponding path program 1 times [2023-01-28 00:11:20,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:20,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547584336] [2023-01-28 00:11:20,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:20,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:20,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:20,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:20,889 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:20,889 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:20,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-28 00:11:20,889 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:20,889 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:20,889 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:20,889 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-01-28 00:11:21,073 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:21,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:21,785 INFO L130 PetriNetUnfolder]: 171/1580 cut-off events. [2023-01-28 00:11:21,785 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:11:21,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 1580 events. 171/1580 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7910 event pairs, 0 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 1654. Up to 36 conditions per place. [2023-01-28 00:11:21,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:21,877 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:21,877 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:21,877 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:21,878 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:21,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:22,663 INFO L130 PetriNetUnfolder]: 171/1580 cut-off events. [2023-01-28 00:11:22,664 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:11:22,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 1580 events. 171/1580 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7910 event pairs, 0 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 1654. Up to 36 conditions per place. [2023-01-28 00:11:23,256 INFO L119 LiptonReduction]: Number of co-enabled transitions 1710540 [2023-01-28 00:11:51,188 INFO L134 LiptonReduction]: Checked pairs total: 3860000 [2023-01-28 00:11:51,198 INFO L136 LiptonReduction]: Total number of compositions: 1094 [2023-01-28 00:11:51,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:51,200 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:51,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:51,356 INFO L130 PetriNetUnfolder]: 106/540 cut-off events. [2023-01-28 00:11:51,356 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:11:51,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:51,357 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] [2023-01-28 00:11:51,357 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:51,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:51,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2044922245, now seen corresponding path program 1 times [2023-01-28 00:11:51,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:51,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167700659] [2023-01-28 00:11:51,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:51,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:51,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:51,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:51,430 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:51,430 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:51,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-28 00:11:51,430 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:51,430 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:51,431 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:51,431 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-01-28 00:11:51,616 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:51,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:11:52,365 INFO L130 PetriNetUnfolder]: 181/1671 cut-off events. [2023-01-28 00:11:52,365 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:11:52,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1671 events. 181/1671 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8434 event pairs, 0 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1765. Up to 38 conditions per place. [2023-01-28 00:11:52,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:11:52,494 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:11:52,495 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:52,495 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:11:52,495 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:11:52,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:11:53,321 INFO L130 PetriNetUnfolder]: 181/1671 cut-off events. [2023-01-28 00:11:53,322 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:11:53,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1671 events. 181/1671 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8434 event pairs, 0 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1765. Up to 38 conditions per place. [2023-01-28 00:11:53,644 INFO L119 LiptonReduction]: Number of co-enabled transitions 1922076 [2023-01-28 00:12:25,018 INFO L134 LiptonReduction]: Checked pairs total: 4368552 [2023-01-28 00:12:25,018 INFO L136 LiptonReduction]: Total number of compositions: 1165 [2023-01-28 00:12:25,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:25,020 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:25,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:25,127 INFO L130 PetriNetUnfolder]: 113/575 cut-off events. [2023-01-28 00:12:25,127 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:12:25,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:25,127 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] [2023-01-28 00:12:25,127 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:25,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:25,127 INFO L85 PathProgramCache]: Analyzing trace with hash -28340825, now seen corresponding path program 1 times [2023-01-28 00:12:25,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:25,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909191668] [2023-01-28 00:12:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:25,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:25,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:25,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:25,203 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:25,203 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:25,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-28 00:12:25,203 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:25,204 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:25,204 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:25,204 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-01-28 00:12:25,508 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:12:25,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:26,593 INFO L130 PetriNetUnfolder]: 191/1762 cut-off events. [2023-01-28 00:12:26,593 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:12:26,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1762 events. 191/1762 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8943 event pairs, 0 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 1877. Up to 40 conditions per place. [2023-01-28 00:12:26,753 INFO L82 GeneralOperation]: Start removeDead. Operand has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:26,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:26,802 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:12:26,802 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:26,802 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:26,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:27,727 INFO L130 PetriNetUnfolder]: 191/1762 cut-off events. [2023-01-28 00:12:27,728 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:12:27,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1762 events. 191/1762 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8943 event pairs, 0 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 1877. Up to 40 conditions per place. [2023-01-28 00:12:28,142 INFO L119 LiptonReduction]: Number of co-enabled transitions 2145936 [2023-01-28 00:12:59,647 INFO L134 LiptonReduction]: Checked pairs total: 4909396 [2023-01-28 00:12:59,647 INFO L136 LiptonReduction]: Total number of compositions: 1227 [2023-01-28 00:12:59,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:59,649 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:59,649 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:59,771 INFO L130 PetriNetUnfolder]: 120/608 cut-off events. [2023-01-28 00:12:59,771 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:12:59,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:59,771 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] [2023-01-28 00:12:59,771 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:59,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:59,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1576653855, now seen corresponding path program 1 times [2023-01-28 00:12:59,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:59,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966008768] [2023-01-28 00:12:59,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:59,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:59,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:59,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:59,853 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:59,853 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:59,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-01-28 00:12:59,854 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:59,854 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:59,854 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:59,854 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-01-28 00:13:00,057 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:13:00,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:01,084 INFO L130 PetriNetUnfolder]: 201/1853 cut-off events. [2023-01-28 00:13:01,084 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:13:01,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1853 events. 201/1853 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9439 event pairs, 0 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 1990. Up to 42 conditions per place. [2023-01-28 00:13:01,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:01,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:01,181 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:13:01,181 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:01,181 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:01,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:02,084 INFO L130 PetriNetUnfolder]: 201/1853 cut-off events. [2023-01-28 00:13:02,084 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:13:02,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1853 events. 201/1853 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9439 event pairs, 0 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 1990. Up to 42 conditions per place. [2023-01-28 00:13:02,754 INFO L119 LiptonReduction]: Number of co-enabled transitions 2382120 [2023-01-28 00:13:35,899 INFO L134 LiptonReduction]: Checked pairs total: 5438150 [2023-01-28 00:13:35,899 INFO L136 LiptonReduction]: Total number of compositions: 1292 [2023-01-28 00:13:35,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:13:35,901 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:13:35,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:13:36,050 INFO L130 PetriNetUnfolder]: 126/642 cut-off events. [2023-01-28 00:13:36,051 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:13:36,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:13:36,051 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] [2023-01-28 00:13:36,051 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:13:36,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:13:36,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1517417906, now seen corresponding path program 1 times [2023-01-28 00:13:36,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:13:36,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495647677] [2023-01-28 00:13:36,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:13:36,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:13:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:36,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:13:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:36,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:13:36,142 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:13:36,142 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:13:36,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-01-28 00:13:36,142 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:13:36,142 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:13:36,142 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:13:36,143 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-01-28 00:13:36,383 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:13:36,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:37,576 INFO L130 PetriNetUnfolder]: 211/1944 cut-off events. [2023-01-28 00:13:37,576 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:13:37,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1944 events. 211/1944 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9979 event pairs, 0 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 2104. Up to 44 conditions per place. [2023-01-28 00:13:37,655 INFO L82 GeneralOperation]: Start removeDead. Operand has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:37,684 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:37,684 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:13:37,685 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:37,685 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:37,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:38,835 INFO L130 PetriNetUnfolder]: 211/1944 cut-off events. [2023-01-28 00:13:38,835 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:13:38,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1944 events. 211/1944 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9979 event pairs, 0 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 2104. Up to 44 conditions per place. [2023-01-28 00:13:39,459 INFO L119 LiptonReduction]: Number of co-enabled transitions 2630628 [2023-01-28 00:14:14,224 INFO L134 LiptonReduction]: Checked pairs total: 6023620 [2023-01-28 00:14:14,224 INFO L136 LiptonReduction]: Total number of compositions: 1352 [2023-01-28 00:14:14,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:14:14,226 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:14:14,226 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:14:14,435 INFO L130 PetriNetUnfolder]: 133/679 cut-off events. [2023-01-28 00:14:14,435 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:14:14,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:14:14,435 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] [2023-01-28 00:14:14,435 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:14:14,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:14:14,437 INFO L85 PathProgramCache]: Analyzing trace with hash 487342399, now seen corresponding path program 1 times [2023-01-28 00:14:14,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:14:14,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056213779] [2023-01-28 00:14:14,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:14:14,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:14:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:14,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:14:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:14,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:14:14,523 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:14:14,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:14:14,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-01-28 00:14:14,523 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:14:14,524 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:14:14,524 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:14:14,524 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-01-28 00:14:14,738 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:14:14,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:16,186 INFO L130 PetriNetUnfolder]: 221/2035 cut-off events. [2023-01-28 00:14:16,186 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:14:16,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 2035 events. 221/2035 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10464 event pairs, 0 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 2219. Up to 46 conditions per place. [2023-01-28 00:14:16,267 INFO L82 GeneralOperation]: Start removeDead. Operand has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:16,296 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:16,297 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:14:16,297 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:16,297 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:16,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:17,504 INFO L130 PetriNetUnfolder]: 221/2035 cut-off events. [2023-01-28 00:14:17,504 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:14:17,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 2035 events. 221/2035 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10464 event pairs, 0 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 2219. Up to 46 conditions per place. [2023-01-28 00:14:18,174 INFO L119 LiptonReduction]: Number of co-enabled transitions 2891460 [2023-01-28 00:14:55,585 INFO L134 LiptonReduction]: Checked pairs total: 5961511 [2023-01-28 00:14:55,586 INFO L136 LiptonReduction]: Total number of compositions: 1418 [2023-01-28 00:14:55,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:14:55,587 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:14:55,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:14:55,734 INFO L130 PetriNetUnfolder]: 141/711 cut-off events. [2023-01-28 00:14:55,734 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:14:55,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:14:55,734 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] [2023-01-28 00:14:55,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:14:55,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:14:55,735 INFO L85 PathProgramCache]: Analyzing trace with hash -232205019, now seen corresponding path program 1 times [2023-01-28 00:14:55,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:14:55,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561061808] [2023-01-28 00:14:55,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:14:55,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:14:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:55,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:14:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:55,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:14:55,823 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:14:55,824 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:14:55,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-01-28 00:14:55,824 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:14:55,824 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:14:55,824 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:14:55,824 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-01-28 00:14:56,038 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:14:56,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:57,602 INFO L130 PetriNetUnfolder]: 231/2126 cut-off events. [2023-01-28 00:14:57,602 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:14:57,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 2126 events. 231/2126 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10988 event pairs, 0 based on Foata normal form. 0/1848 useless extension candidates. Maximal degree in co-relation 2335. Up to 48 conditions per place. [2023-01-28 00:14:57,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:57,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:57,724 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:14:57,724 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:57,724 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:57,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:59,076 INFO L130 PetriNetUnfolder]: 231/2126 cut-off events. [2023-01-28 00:14:59,076 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:14:59,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 2126 events. 231/2126 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10988 event pairs, 0 based on Foata normal form. 0/1848 useless extension candidates. Maximal degree in co-relation 2335. Up to 48 conditions per place. [2023-01-28 00:14:59,851 INFO L119 LiptonReduction]: Number of co-enabled transitions 3164616 [2023-01-28 00:15:40,033 INFO L134 LiptonReduction]: Checked pairs total: 6441936 [2023-01-28 00:15:40,033 INFO L136 LiptonReduction]: Total number of compositions: 1478 [2023-01-28 00:15:40,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:15:40,035 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:15:40,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:15:40,199 INFO L130 PetriNetUnfolder]: 148/745 cut-off events. [2023-01-28 00:15:40,199 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:15:40,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:15:40,200 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] [2023-01-28 00:15:40,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:15:40,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:15:40,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1237637143, now seen corresponding path program 1 times [2023-01-28 00:15:40,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:15:40,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173948109] [2023-01-28 00:15:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:15:40,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:15:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:40,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:15:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:40,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:15:40,308 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:15:40,308 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:15:40,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-01-28 00:15:40,308 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:15:40,309 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:15:40,309 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:15:40,309 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-01-28 00:15:40,550 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:15:40,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:42,358 INFO L130 PetriNetUnfolder]: 241/2217 cut-off events. [2023-01-28 00:15:42,359 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:15:42,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2217 events. 241/2217 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 11496 event pairs, 0 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2452. Up to 50 conditions per place. [2023-01-28 00:15:42,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:42,497 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:42,497 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:15:42,498 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:42,498 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:42,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:44,114 INFO L130 PetriNetUnfolder]: 241/2217 cut-off events. [2023-01-28 00:15:44,114 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:15:44,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2217 events. 241/2217 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 11496 event pairs, 0 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2452. Up to 50 conditions per place. [2023-01-28 00:15:44,846 INFO L119 LiptonReduction]: Number of co-enabled transitions 3450096 [2023-01-28 00:16:27,246 INFO L134 LiptonReduction]: Checked pairs total: 7116348 [2023-01-28 00:16:27,247 INFO L136 LiptonReduction]: Total number of compositions: 1545 [2023-01-28 00:16:27,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:16:27,248 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:16:27,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:16:27,422 INFO L130 PetriNetUnfolder]: 155/780 cut-off events. [2023-01-28 00:16:27,423 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:16:27,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:16:27,423 INFO L208 CegarLoopForPetriNet]: trace histogram [25, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:16:27,423 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:16:27,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:16:27,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1713990933, now seen corresponding path program 1 times [2023-01-28 00:16:27,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:16:27,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107228305] [2023-01-28 00:16:27,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:16:27,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:16:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:27,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:16:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:27,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:16:27,557 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:16:27,557 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:16:27,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-01-28 00:16:27,557 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:16:27,558 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:16:27,558 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:16:27,558 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-01-28 00:16:27,820 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:16:27,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:29,709 INFO L130 PetriNetUnfolder]: 251/2308 cut-off events. [2023-01-28 00:16:29,709 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:16:29,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2308 events. 251/2308 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11993 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 2570. Up to 52 conditions per place. [2023-01-28 00:16:29,824 INFO L82 GeneralOperation]: Start removeDead. Operand has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:29,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:29,863 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:16:29,863 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:29,863 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:29,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:31,678 INFO L130 PetriNetUnfolder]: 251/2308 cut-off events. [2023-01-28 00:16:31,679 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:16:31,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2308 events. 251/2308 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11993 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 2570. Up to 52 conditions per place. [2023-01-28 00:16:32,510 INFO L119 LiptonReduction]: Number of co-enabled transitions 3747900 [2023-01-28 00:17:18,416 INFO L134 LiptonReduction]: Checked pairs total: 7669208 [2023-01-28 00:17:18,417 INFO L136 LiptonReduction]: Total number of compositions: 1604 [2023-01-28 00:17:18,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:18,419 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:18,419 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:18,612 INFO L130 PetriNetUnfolder]: 162/816 cut-off events. [2023-01-28 00:17:18,612 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:17:18,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:18,613 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] [2023-01-28 00:17:18,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:18,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:18,613 INFO L85 PathProgramCache]: Analyzing trace with hash 782955840, now seen corresponding path program 1 times [2023-01-28 00:17:18,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:18,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594706263] [2023-01-28 00:17:18,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:18,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:18,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:18,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:18,748 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:18,748 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:18,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-01-28 00:17:18,748 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:18,749 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:18,749 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:18,749 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-01-28 00:17:19,036 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:19,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:21,086 INFO L130 PetriNetUnfolder]: 261/2399 cut-off events. [2023-01-28 00:17:21,087 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:17:21,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2399 events. 261/2399 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12492 event pairs, 0 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 2689. Up to 54 conditions per place. [2023-01-28 00:17:21,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:21,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:21,330 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:21,331 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:21,331 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:21,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:23,861 INFO L130 PetriNetUnfolder]: 261/2399 cut-off events. [2023-01-28 00:17:23,861 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:17:23,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2399 events. 261/2399 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12492 event pairs, 0 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 2689. Up to 54 conditions per place. [2023-01-28 00:17:24,680 INFO L119 LiptonReduction]: Number of co-enabled transitions 4058028 [2023-01-28 00:18:11,402 INFO L134 LiptonReduction]: Checked pairs total: 9032144 [2023-01-28 00:18:11,402 INFO L136 LiptonReduction]: Total number of compositions: 1674 [2023-01-28 00:18:11,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:11,404 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;@286fc312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:11,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:11,618 INFO L130 PetriNetUnfolder]: 170/850 cut-off events. [2023-01-28 00:18:11,619 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:18:11,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:11,619 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] [2023-01-28 00:18:11,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:11,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:11,619 INFO L85 PathProgramCache]: Analyzing trace with hash -376605358, now seen corresponding path program 1 times [2023-01-28 00:18:11,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:11,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838569407] [2023-01-28 00:18:11,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:11,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:11,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:11,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:11,739 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:11,739 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:11,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-01-28 00:18:11,739 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:11,740 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:11,740 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:11,740 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-01-28 00:18:12,128 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:12,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:14,252 INFO L130 PetriNetUnfolder]: 271/2490 cut-off events. [2023-01-28 00:18:14,252 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:18:14,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 2490 events. 271/2490 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13032 event pairs, 0 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2809. Up to 56 conditions per place. [2023-01-28 00:18:14,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:14,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:14,448 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:14,448 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:14,448 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:14,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:16,461 INFO L130 PetriNetUnfolder]: 271/2490 cut-off events. [2023-01-28 00:18:16,461 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:18:16,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 2490 events. 271/2490 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13032 event pairs, 0 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2809. Up to 56 conditions per place. [2023-01-28 00:18:17,492 INFO L119 LiptonReduction]: Number of co-enabled transitions 4380480 Received shutdown request... [2023-01-28 00:18:28,436 WARN L238 SmtUtils]: Removed 7 from assertion stack [2023-01-28 00:18:28,437 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-01-28 00:18:28,438 INFO L158 Benchmark]: Toolchain (without parser) took 685092.38ms. Allocated memory was 341.8MB in the beginning and 7.7GB in the end (delta: 7.4GB). Free memory was 279.9MB in the beginning and 5.2GB in the end (delta: -4.9GB). Peak memory consumption was 2.8GB. Max. memory is 16.0GB. [2023-01-28 00:18:28,438 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 341.8MB. Free memory was 291.5MB in the beginning and 291.4MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:18:28,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.14ms. Allocated memory is still 341.8MB. Free memory was 279.9MB in the beginning and 259.6MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 00:18:28,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.43ms. Allocated memory was 341.8MB in the beginning and 499.1MB in the end (delta: 157.3MB). Free memory was 259.6MB in the beginning and 465.7MB in the end (delta: -206.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.0GB. [2023-01-28 00:18:28,439 INFO L158 Benchmark]: Boogie Preprocessor took 61.15ms. Allocated memory is still 499.1MB. Free memory was 465.7MB in the beginning and 464.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:18:28,439 INFO L158 Benchmark]: RCFGBuilder took 784.93ms. Allocated memory is still 499.1MB. Free memory was 464.6MB in the beginning and 425.2MB in the end (delta: 39.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2023-01-28 00:18:28,440 INFO L158 Benchmark]: TraceAbstraction took 683667.93ms. Allocated memory was 499.1MB in the beginning and 7.7GB in the end (delta: 7.2GB). Free memory was 425.2MB in the beginning and 5.2GB in the end (delta: -4.8GB). Peak memory consumption was 2.8GB. Max. memory is 16.0GB. [2023-01-28 00:18:28,441 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 341.8MB. Free memory was 291.5MB in the beginning and 291.4MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 491.14ms. Allocated memory is still 341.8MB. Free memory was 279.9MB in the beginning and 259.6MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 79.43ms. Allocated memory was 341.8MB in the beginning and 499.1MB in the end (delta: 157.3MB). Free memory was 259.6MB in the beginning and 465.7MB in the end (delta: -206.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.0GB. * Boogie Preprocessor took 61.15ms. Allocated memory is still 499.1MB. Free memory was 465.7MB in the beginning and 464.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 784.93ms. Allocated memory is still 499.1MB. Free memory was 464.6MB in the beginning and 425.2MB in the end (delta: 39.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * TraceAbstraction took 683667.93ms. Allocated memory was 499.1MB in the beginning and 7.7GB in the end (delta: 7.2GB). Free memory was 425.2MB in the beginning and 5.2GB in the end (delta: -4.8GB). Peak memory consumption was 2.8GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 107 PlacesBefore, 24 PlacesAfterwards, 114 TransitionsBefore, 28 TransitionsAfterwards, 2028 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 104 TotalNumberOfCompositions, 2167 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1862, independent: 1748, independent conditional: 0, independent unconditional: 1748, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1107, independent: 1072, independent conditional: 0, independent unconditional: 1072, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1862, independent: 676, independent conditional: 0, independent unconditional: 676, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 1107, unknown conditional: 0, unknown unconditional: 1107] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 179 PlacesBefore, 57 PlacesAfterwards, 193 TransitionsBefore, 66 TransitionsAfterwards, 16380 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 31 ConcurrentYvCompositions, 5 ChoiceCompositions, 155 TotalNumberOfCompositions, 33585 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17106, independent: 16608, independent conditional: 0, independent unconditional: 16608, dependent: 498, dependent conditional: 0, dependent unconditional: 498, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8710, independent: 8626, independent conditional: 0, independent unconditional: 8626, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17106, independent: 7982, independent conditional: 0, independent unconditional: 7982, dependent: 414, dependent conditional: 0, dependent unconditional: 414, unknown: 8710, unknown conditional: 0, unknown unconditional: 8710] , Statistics on independence cache: Total cache size (in pairs): 581, Positive cache size: 543, Positive conditional cache size: 0, Positive unconditional cache size: 543, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 251 PlacesBefore, 82 PlacesAfterwards, 272 TransitionsBefore, 96 TransitionsAfterwards, 43056 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 141 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 49 ConcurrentYvCompositions, 7 ChoiceCompositions, 218 TotalNumberOfCompositions, 78907 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40460, independent: 39863, independent conditional: 0, independent unconditional: 39863, dependent: 597, dependent conditional: 0, dependent unconditional: 597, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 22473, independent: 22323, independent conditional: 0, independent unconditional: 22323, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 40460, independent: 17540, independent conditional: 0, independent unconditional: 17540, dependent: 447, dependent conditional: 0, dependent unconditional: 447, unknown: 22473, unknown conditional: 0, unknown unconditional: 22473] , Statistics on independence cache: Total cache size (in pairs): 1432, Positive cache size: 1371, Positive conditional cache size: 0, Positive unconditional cache size: 1371, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6s, 323 PlacesBefore, 109 PlacesAfterwards, 351 TransitionsBefore, 128 TransitionsAfterwards, 82056 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 186 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 66 ConcurrentYvCompositions, 9 ChoiceCompositions, 282 TotalNumberOfCompositions, 163123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67650, independent: 66806, independent conditional: 0, independent unconditional: 66806, dependent: 844, dependent conditional: 0, dependent unconditional: 844, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41876, independent: 41693, independent conditional: 0, independent unconditional: 41693, dependent: 183, dependent conditional: 0, dependent unconditional: 183, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 67650, independent: 25113, independent conditional: 0, independent unconditional: 25113, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 41876, unknown conditional: 0, unknown unconditional: 41876] , Statistics on independence cache: Total cache size (in pairs): 1501, Positive cache size: 1419, Positive conditional cache size: 0, Positive unconditional cache size: 1419, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.4s, 395 PlacesBefore, 132 PlacesAfterwards, 430 TransitionsBefore, 156 TransitionsAfterwards, 133380 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 235 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 75 ConcurrentYvCompositions, 11 ChoiceCompositions, 342 TotalNumberOfCompositions, 266074 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 119031, independent: 117969, independent conditional: 0, independent unconditional: 117969, dependent: 1062, dependent conditional: 0, dependent unconditional: 1062, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 68894, independent: 68657, independent conditional: 0, independent unconditional: 68657, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 119031, independent: 49312, independent conditional: 0, independent unconditional: 49312, dependent: 825, dependent conditional: 0, dependent unconditional: 825, unknown: 68894, unknown conditional: 0, unknown unconditional: 68894] , Statistics on independence cache: Total cache size (in pairs): 3926, Positive cache size: 3813, Positive conditional cache size: 0, Positive unconditional cache size: 3813, Negative cache size: 113, Negative conditional cache size: 0, Negative unconditional cache size: 113, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.8s, 467 PlacesBefore, 158 PlacesAfterwards, 509 TransitionsBefore, 187 TransitionsAfterwards, 197028 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 277 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 98 ConcurrentYvCompositions, 13 ChoiceCompositions, 409 TotalNumberOfCompositions, 408501 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170237, independent: 168939, independent conditional: 0, independent unconditional: 168939, dependent: 1298, dependent conditional: 0, dependent unconditional: 1298, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 102255, independent: 101935, independent conditional: 0, independent unconditional: 101935, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170237, independent: 67004, independent conditional: 0, independent unconditional: 67004, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 102255, unknown conditional: 0, unknown unconditional: 102255] , Statistics on independence cache: Total cache size (in pairs): 5413, Positive cache size: 5283, Positive conditional cache size: 0, Positive unconditional cache size: 5283, Negative cache size: 130, Negative conditional cache size: 0, Negative unconditional cache size: 130, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0s, 539 PlacesBefore, 182 PlacesAfterwards, 588 TransitionsBefore, 216 TransitionsAfterwards, 273000 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 328 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 107 ConcurrentYvCompositions, 15 ChoiceCompositions, 471 TotalNumberOfCompositions, 601155 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 255944, independent: 254194, independent conditional: 0, independent unconditional: 254194, dependent: 1750, dependent conditional: 0, dependent unconditional: 1750, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 140512, independent: 140155, independent conditional: 0, independent unconditional: 140155, dependent: 357, dependent conditional: 0, dependent unconditional: 357, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 255944, independent: 114039, independent conditional: 0, independent unconditional: 114039, dependent: 1393, dependent conditional: 0, dependent unconditional: 1393, unknown: 140512, unknown conditional: 0, unknown unconditional: 140512] , Statistics on independence cache: Total cache size (in pairs): 7374, Positive cache size: 7226, Positive conditional cache size: 0, Positive unconditional cache size: 7226, Negative cache size: 148, Negative conditional cache size: 0, Negative unconditional cache size: 148, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.6s, 611 PlacesBefore, 209 PlacesAfterwards, 667 TransitionsBefore, 248 TransitionsAfterwards, 361296 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 371 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 125 ConcurrentYvCompositions, 17 ChoiceCompositions, 534 TotalNumberOfCompositions, 812240 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 371076, independent: 369044, independent conditional: 0, independent unconditional: 369044, dependent: 2032, dependent conditional: 0, dependent unconditional: 2032, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 188435, independent: 188069, independent conditional: 0, independent unconditional: 188069, dependent: 366, dependent conditional: 0, dependent unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 371076, independent: 180975, independent conditional: 0, independent unconditional: 180975, dependent: 1666, dependent conditional: 0, dependent unconditional: 1666, unknown: 188435, unknown conditional: 0, unknown unconditional: 188435] , Statistics on independence cache: Total cache size (in pairs): 10489, Positive cache size: 10309, Positive conditional cache size: 0, Positive unconditional cache size: 10309, Negative cache size: 180, Negative conditional cache size: 0, Negative unconditional cache size: 180, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.2s, 683 PlacesBefore, 234 PlacesAfterwards, 746 TransitionsBefore, 278 TransitionsAfterwards, 461916 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 413 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 145 ConcurrentYvCompositions, 19 ChoiceCompositions, 598 TotalNumberOfCompositions, 929047 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 328600, independent: 326715, independent conditional: 0, independent unconditional: 326715, dependent: 1885, dependent conditional: 0, dependent unconditional: 1885, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 229820, independent: 229385, independent conditional: 0, independent unconditional: 229385, dependent: 435, dependent conditional: 0, dependent unconditional: 435, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328600, independent: 97330, independent conditional: 0, independent unconditional: 97330, dependent: 1450, dependent conditional: 0, dependent unconditional: 1450, unknown: 229820, unknown conditional: 0, unknown unconditional: 229820] , Statistics on independence cache: Total cache size (in pairs): 5890, Positive cache size: 5653, Positive conditional cache size: 0, Positive unconditional cache size: 5653, Negative cache size: 237, Negative conditional cache size: 0, Negative unconditional cache size: 237, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.1s, 755 PlacesBefore, 259 PlacesAfterwards, 825 TransitionsBefore, 308 TransitionsAfterwards, 574860 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 469 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 152 ConcurrentYvCompositions, 21 ChoiceCompositions, 663 TotalNumberOfCompositions, 1167442 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 408681, independent: 406564, independent conditional: 0, independent unconditional: 406564, dependent: 2117, dependent conditional: 0, dependent unconditional: 2117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 286548, independent: 286087, independent conditional: 0, independent unconditional: 286087, dependent: 461, dependent conditional: 0, dependent unconditional: 461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 408681, independent: 120477, independent conditional: 0, independent unconditional: 120477, dependent: 1656, dependent conditional: 0, dependent unconditional: 1656, unknown: 286548, unknown conditional: 0, unknown unconditional: 286548] , Statistics on independence cache: Total cache size (in pairs): 6246, Positive cache size: 6040, Positive conditional cache size: 0, Positive unconditional cache size: 6040, Negative cache size: 206, Negative conditional cache size: 0, Negative unconditional cache size: 206, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.9s, 827 PlacesBefore, 282 PlacesAfterwards, 904 TransitionsBefore, 336 TransitionsAfterwards, 700128 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 521 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 161 ConcurrentYvCompositions, 23 ChoiceCompositions, 726 TotalNumberOfCompositions, 1457710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 496854, independent: 494488, independent conditional: 0, independent unconditional: 494488, dependent: 2366, dependent conditional: 0, dependent unconditional: 2366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 345217, independent: 344662, independent conditional: 0, independent unconditional: 344662, dependent: 555, dependent conditional: 0, dependent unconditional: 555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 496854, independent: 149826, independent conditional: 0, independent unconditional: 149826, dependent: 1811, dependent conditional: 0, dependent unconditional: 1811, unknown: 345217, unknown conditional: 0, unknown unconditional: 345217] , Statistics on independence cache: Total cache size (in pairs): 4736, Positive cache size: 4459, Positive conditional cache size: 0, Positive unconditional cache size: 4459, Negative cache size: 277, Negative conditional cache size: 0, Negative unconditional cache size: 277, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.2s, 899 PlacesBefore, 309 PlacesAfterwards, 983 TransitionsBefore, 368 TransitionsAfterwards, 837720 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 553 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 189 ConcurrentYvCompositions, 25 ChoiceCompositions, 788 TotalNumberOfCompositions, 1744929 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 608992, independent: 606412, independent conditional: 0, independent unconditional: 606412, dependent: 2580, dependent conditional: 0, dependent unconditional: 2580, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 422154, independent: 421613, independent conditional: 0, independent unconditional: 421613, dependent: 541, dependent conditional: 0, dependent unconditional: 541, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 608992, independent: 184799, independent conditional: 0, independent unconditional: 184799, dependent: 2039, dependent conditional: 0, dependent unconditional: 2039, unknown: 422154, unknown conditional: 0, unknown unconditional: 422154] , Statistics on independence cache: Total cache size (in pairs): 9936, Positive cache size: 9688, Positive conditional cache size: 0, Positive unconditional cache size: 9688, Negative cache size: 248, Negative conditional cache size: 0, Negative unconditional cache size: 248, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.9s, 971 PlacesBefore, 336 PlacesAfterwards, 1062 TransitionsBefore, 400 TransitionsAfterwards, 987636 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 602 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 198 ConcurrentYvCompositions, 27 ChoiceCompositions, 848 TotalNumberOfCompositions, 2255991 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1043298, independent: 1039985, independent conditional: 0, independent unconditional: 1039985, dependent: 3313, dependent conditional: 0, dependent unconditional: 3313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 516508, independent: 515973, independent conditional: 0, independent unconditional: 515973, dependent: 535, dependent conditional: 0, dependent unconditional: 535, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1043298, independent: 524012, independent conditional: 0, independent unconditional: 524012, dependent: 2778, dependent conditional: 0, dependent unconditional: 2778, unknown: 516508, unknown conditional: 0, unknown unconditional: 516508] , Statistics on independence cache: Total cache size (in pairs): 31596, Positive cache size: 31324, Positive conditional cache size: 0, Positive unconditional cache size: 31324, Negative cache size: 272, Negative conditional cache size: 0, Negative unconditional cache size: 272, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.7s, 1043 PlacesBefore, 362 PlacesAfterwards, 1141 TransitionsBefore, 431 TransitionsAfterwards, 1149876 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 648 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 216 ConcurrentYvCompositions, 29 ChoiceCompositions, 914 TotalNumberOfCompositions, 2617201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1006326, independent: 1002790, independent conditional: 0, independent unconditional: 1002790, dependent: 3536, dependent conditional: 0, dependent unconditional: 3536, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 586609, independent: 585980, independent conditional: 0, independent unconditional: 585980, dependent: 629, dependent conditional: 0, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1006326, independent: 416810, independent conditional: 0, independent unconditional: 416810, dependent: 2907, dependent conditional: 0, dependent unconditional: 2907, unknown: 586609, unknown conditional: 0, unknown unconditional: 586609] , Statistics on independence cache: Total cache size (in pairs): 23886, Positive cache size: 23580, Positive conditional cache size: 0, Positive unconditional cache size: 23580, Negative cache size: 306, Negative conditional cache size: 0, Negative unconditional cache size: 306, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.9s, 1115 PlacesBefore, 384 PlacesAfterwards, 1220 TransitionsBefore, 458 TransitionsAfterwards, 1324440 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 691 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 231 ConcurrentYvCompositions, 31 ChoiceCompositions, 974 TotalNumberOfCompositions, 2975786 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 936499, independent: 932727, independent conditional: 0, independent unconditional: 932727, dependent: 3772, dependent conditional: 0, dependent unconditional: 3772, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 654467, independent: 653636, independent conditional: 0, independent unconditional: 653636, dependent: 831, dependent conditional: 0, dependent unconditional: 831, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 936499, independent: 279091, independent conditional: 0, independent unconditional: 279091, dependent: 2941, dependent conditional: 0, dependent unconditional: 2941, unknown: 654467, unknown conditional: 0, unknown unconditional: 654467] , Statistics on independence cache: Total cache size (in pairs): 8504, Positive cache size: 8115, Positive conditional cache size: 0, Positive unconditional cache size: 8115, Negative cache size: 389, Negative conditional cache size: 0, Negative unconditional cache size: 389, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.2s, 1187 PlacesBefore, 411 PlacesAfterwards, 1299 TransitionsBefore, 490 TransitionsAfterwards, 1511328 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 737 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 252 ConcurrentYvCompositions, 33 ChoiceCompositions, 1043 TotalNumberOfCompositions, 3418394 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1081493, independent: 1077484, independent conditional: 0, independent unconditional: 1077484, dependent: 4009, dependent conditional: 0, dependent unconditional: 4009, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 754071, independent: 753358, independent conditional: 0, independent unconditional: 753358, dependent: 713, dependent conditional: 0, dependent unconditional: 713, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1081493, independent: 324126, independent conditional: 0, independent unconditional: 324126, dependent: 3296, dependent conditional: 0, dependent unconditional: 3296, unknown: 754071, unknown conditional: 0, unknown unconditional: 754071] , Statistics on independence cache: Total cache size (in pairs): 12595, Positive cache size: 12261, Positive conditional cache size: 0, Positive unconditional cache size: 12261, Negative cache size: 334, Negative conditional cache size: 0, Negative unconditional cache size: 334, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.3s, 1259 PlacesBefore, 435 PlacesAfterwards, 1378 TransitionsBefore, 519 TransitionsAfterwards, 1710540 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 780 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 258 ConcurrentYvCompositions, 35 ChoiceCompositions, 1094 TotalNumberOfCompositions, 3860000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1209719, independent: 1205420, independent conditional: 0, independent unconditional: 1205420, dependent: 4299, dependent conditional: 0, dependent unconditional: 4299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 842621, independent: 841510, independent conditional: 0, independent unconditional: 841510, dependent: 1111, dependent conditional: 0, dependent unconditional: 1111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1209719, independent: 363910, independent conditional: 0, independent unconditional: 363910, dependent: 3188, dependent conditional: 0, dependent unconditional: 3188, unknown: 842621, unknown conditional: 0, unknown unconditional: 842621] , Statistics on independence cache: Total cache size (in pairs): 13044, Positive cache size: 12394, Positive conditional cache size: 0, Positive unconditional cache size: 12394, Negative cache size: 650, Negative conditional cache size: 0, Negative unconditional cache size: 650, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.5s, 1331 PlacesBefore, 460 PlacesAfterwards, 1457 TransitionsBefore, 549 TransitionsAfterwards, 1922076 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 822 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 285 ConcurrentYvCompositions, 37 ChoiceCompositions, 1165 TotalNumberOfCompositions, 4368552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1371150, independent: 1366584, independent conditional: 0, independent unconditional: 1366584, dependent: 4566, dependent conditional: 0, dependent unconditional: 4566, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 954516, independent: 953668, independent conditional: 0, independent unconditional: 953668, dependent: 848, dependent conditional: 0, dependent unconditional: 848, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1371150, independent: 412916, independent conditional: 0, independent unconditional: 412916, dependent: 3718, dependent conditional: 0, dependent unconditional: 3718, unknown: 954516, unknown conditional: 0, unknown unconditional: 954516] , Statistics on independence cache: Total cache size (in pairs): 15525, Positive cache size: 15150, Positive conditional cache size: 0, Positive unconditional cache size: 15150, Negative cache size: 375, Negative conditional cache size: 0, Negative unconditional cache size: 375, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.8s, 1403 PlacesBefore, 486 PlacesAfterwards, 1536 TransitionsBefore, 580 TransitionsAfterwards, 2145936 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 866 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 301 ConcurrentYvCompositions, 39 ChoiceCompositions, 1227 TotalNumberOfCompositions, 4909396 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1533663, independent: 1528833, independent conditional: 0, independent unconditional: 1528833, dependent: 4830, dependent conditional: 0, dependent unconditional: 4830, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1066939, independent: 1066086, independent conditional: 0, independent unconditional: 1066086, dependent: 853, dependent conditional: 0, dependent unconditional: 853, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1533663, independent: 462747, independent conditional: 0, independent unconditional: 462747, dependent: 3977, dependent conditional: 0, dependent unconditional: 3977, unknown: 1066939, unknown conditional: 0, unknown unconditional: 1066939] , Statistics on independence cache: Total cache size (in pairs): 18759, Positive cache size: 18362, Positive conditional cache size: 0, Positive unconditional cache size: 18362, Negative cache size: 397, Negative conditional cache size: 0, Negative unconditional cache size: 397, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.7s, 1475 PlacesBefore, 512 PlacesAfterwards, 1615 TransitionsBefore, 611 TransitionsAfterwards, 2382120 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 923 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 307 ConcurrentYvCompositions, 41 ChoiceCompositions, 1292 TotalNumberOfCompositions, 5438150 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1979618, independent: 1974553, independent conditional: 0, independent unconditional: 1974553, dependent: 5065, dependent conditional: 0, dependent unconditional: 5065, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1211333, independent: 1210201, independent conditional: 0, independent unconditional: 1210201, dependent: 1132, dependent conditional: 0, dependent unconditional: 1132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1979618, independent: 764352, independent conditional: 0, independent unconditional: 764352, dependent: 3933, dependent conditional: 0, dependent unconditional: 3933, unknown: 1211333, unknown conditional: 0, unknown unconditional: 1211333] , Statistics on independence cache: Total cache size (in pairs): 46643, Positive cache size: 46102, Positive conditional cache size: 0, Positive unconditional cache size: 46102, Negative cache size: 541, Negative conditional cache size: 0, Negative unconditional cache size: 541, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.5s, 1547 PlacesBefore, 539 PlacesAfterwards, 1694 TransitionsBefore, 643 TransitionsAfterwards, 2630628 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 963 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 325 ConcurrentYvCompositions, 43 ChoiceCompositions, 1352 TotalNumberOfCompositions, 6023620 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1869483, independent: 1864134, independent conditional: 0, independent unconditional: 1864134, dependent: 5349, dependent conditional: 0, dependent unconditional: 5349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1301424, independent: 1300446, independent conditional: 0, independent unconditional: 1300446, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1869483, independent: 563688, independent conditional: 0, independent unconditional: 563688, dependent: 4371, dependent conditional: 0, dependent unconditional: 4371, unknown: 1301424, unknown conditional: 0, unknown unconditional: 1301424] , Statistics on independence cache: Total cache size (in pairs): 22128, Positive cache size: 21686, Positive conditional cache size: 0, Positive unconditional cache size: 21686, Negative cache size: 442, Negative conditional cache size: 0, Negative unconditional cache size: 442, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.3s, 1619 PlacesBefore, 562 PlacesAfterwards, 1773 TransitionsBefore, 671 TransitionsAfterwards, 2891460 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1007 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 345 ConcurrentYvCompositions, 45 ChoiceCompositions, 1418 TotalNumberOfCompositions, 5961511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1977376, independent: 1972699, independent conditional: 0, independent unconditional: 1972699, dependent: 4677, dependent conditional: 0, dependent unconditional: 4677, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1437402, independent: 1436305, independent conditional: 0, independent unconditional: 1436305, dependent: 1097, dependent conditional: 0, dependent unconditional: 1097, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1977376, independent: 536394, independent conditional: 0, independent unconditional: 536394, dependent: 3580, dependent conditional: 0, dependent unconditional: 3580, unknown: 1437402, unknown conditional: 0, unknown unconditional: 1437402] , Statistics on independence cache: Total cache size (in pairs): 20544, Positive cache size: 20084, Positive conditional cache size: 0, Positive unconditional cache size: 20084, Negative cache size: 460, Negative conditional cache size: 0, Negative unconditional cache size: 460, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.3s, 1691 PlacesBefore, 585 PlacesAfterwards, 1852 TransitionsBefore, 699 TransitionsAfterwards, 3164616 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1056 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 354 ConcurrentYvCompositions, 47 ChoiceCompositions, 1478 TotalNumberOfCompositions, 6441936 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2178584, independent: 2173741, independent conditional: 0, independent unconditional: 2173741, dependent: 4843, dependent conditional: 0, dependent unconditional: 4843, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1574360, independent: 1573395, independent conditional: 0, independent unconditional: 1573395, dependent: 965, dependent conditional: 0, dependent unconditional: 965, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2178584, independent: 600346, independent conditional: 0, independent unconditional: 600346, dependent: 3878, dependent conditional: 0, dependent unconditional: 3878, unknown: 1574360, unknown conditional: 0, unknown unconditional: 1574360] , Statistics on independence cache: Total cache size (in pairs): 31974, Positive cache size: 31494, Positive conditional cache size: 0, Positive unconditional cache size: 31494, Negative cache size: 480, Negative conditional cache size: 0, Negative unconditional cache size: 480, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.7s, 1763 PlacesBefore, 610 PlacesAfterwards, 1931 TransitionsBefore, 729 TransitionsAfterwards, 3450096 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1112 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 363 ConcurrentYvCompositions, 49 ChoiceCompositions, 1545 TotalNumberOfCompositions, 7116348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3255295, independent: 3250185, independent conditional: 0, independent unconditional: 3250185, dependent: 5110, dependent conditional: 0, dependent unconditional: 5110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1793678, independent: 1792473, independent conditional: 0, independent unconditional: 1792473, dependent: 1205, dependent conditional: 0, dependent unconditional: 1205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3255295, independent: 1457712, independent conditional: 0, independent unconditional: 1457712, dependent: 3905, dependent conditional: 0, dependent unconditional: 3905, unknown: 1793678, unknown conditional: 0, unknown unconditional: 1793678] , Statistics on independence cache: Total cache size (in pairs): 102175, Positive cache size: 101651, Positive conditional cache size: 0, Positive unconditional cache size: 101651, Negative cache size: 524, Negative conditional cache size: 0, Negative unconditional cache size: 524, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.6s, 1835 PlacesBefore, 637 PlacesAfterwards, 2010 TransitionsBefore, 761 TransitionsAfterwards, 3747900 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1144 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 388 ConcurrentYvCompositions, 51 ChoiceCompositions, 1604 TotalNumberOfCompositions, 7669208 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3292501, independent: 3287238, independent conditional: 0, independent unconditional: 3287238, dependent: 5263, dependent conditional: 0, dependent unconditional: 5263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1944403, independent: 1943259, independent conditional: 0, independent unconditional: 1943259, dependent: 1144, dependent conditional: 0, dependent unconditional: 1144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3292501, independent: 1343979, independent conditional: 0, independent unconditional: 1343979, dependent: 4119, dependent conditional: 0, dependent unconditional: 4119, unknown: 1944403, unknown conditional: 0, unknown unconditional: 1944403] , Statistics on independence cache: Total cache size (in pairs): 98452, Positive cache size: 97903, Positive conditional cache size: 0, Positive unconditional cache size: 97903, Negative cache size: 549, Negative conditional cache size: 0, Negative unconditional cache size: 549, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.1s, 1907 PlacesBefore, 661 PlacesAfterwards, 2089 TransitionsBefore, 790 TransitionsAfterwards, 4058028 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 1190 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 410 ConcurrentYvCompositions, 53 ChoiceCompositions, 1674 TotalNumberOfCompositions, 9032144 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3639342, independent: 3632892, independent conditional: 0, independent unconditional: 3632892, dependent: 6450, dependent conditional: 0, dependent unconditional: 6450, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2097690, independent: 2096081, independent conditional: 0, independent unconditional: 2096081, dependent: 1609, dependent conditional: 0, dependent unconditional: 1609, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3639342, independent: 1536811, independent conditional: 0, independent unconditional: 1536811, dependent: 4841, dependent conditional: 0, dependent unconditional: 4841, unknown: 2097690, unknown conditional: 0, unknown unconditional: 2097690] , Statistics on independence cache: Total cache size (in pairs): 103634, Positive cache size: 102988, Positive conditional cache size: 0, Positive unconditional cache size: 102988, Negative cache size: 646, Negative conditional cache size: 0, Negative unconditional cache size: 646, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while CegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 1979 places, 2168 transitions, 5173 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 1979 places, 2168 transitions, 5173 flow and 4380480 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 53 for 13ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown