/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 05:17:55,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 05:17:55,785 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 05:17:55,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 05:17:55,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 05:17:55,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 05:17:55,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 05:17:55,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 05:17:55,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 05:17:55,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 05:17:55,825 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 05:17:55,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 05:17:55,826 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 05:17:55,827 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 05:17:55,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 05:17:55,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 05:17:55,827 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 05:17:55,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 05:17:55,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 05:17:55,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 05:17:55,828 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 05:17:55,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 05:17:55,829 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 05:17:55,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 05:17:55,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 05:17:55,830 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 05:17:55,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 05:17:55,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 05:17:55,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 05:17:55,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 05:17:55,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 05:17:55,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 05:17:55,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 05:17:55,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 05:17:55,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 05:17:55,833 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-24 05:17:56,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 05:17:56,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 05:17:56,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 05:17:56,154 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 05:17:56,156 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 05:17:56,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2023-08-24 05:17:57,292 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 05:17:57,526 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 05:17:57,526 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2023-08-24 05:17:57,540 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61830039b/dcd0c1e44e3048f190983b761c212c97/FLAGcc8591647 [2023-08-24 05:17:57,553 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61830039b/dcd0c1e44e3048f190983b761c212c97 [2023-08-24 05:17:57,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 05:17:57,556 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 05:17:57,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 05:17:57,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 05:17:57,560 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 05:17:57,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 05:17:57" (1/1) ... [2023-08-24 05:17:57,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6538f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:57, skipping insertion in model container [2023-08-24 05:17:57,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 05:17:57" (1/1) ... [2023-08-24 05:17:57,613 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 05:17:57,792 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 05:17:57,929 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i[30633,30646] [2023-08-24 05:17:57,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 05:17:57,943 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 05:17:57,963 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 05:17:57,975 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [266] [2023-08-24 05:17:57,976 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [266] [2023-08-24 05:17:57,984 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i[30633,30646] [2023-08-24 05:17:57,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 05:17:58,021 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 05:17:58,022 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 05:17:58,022 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 05:17:58,027 INFO L206 MainTranslator]: Completed translation [2023-08-24 05:17:58,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58 WrapperNode [2023-08-24 05:17:58,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 05:17:58,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 05:17:58,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 05:17:58,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 05:17:58,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,085 INFO L138 Inliner]: procedures = 171, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-08-24 05:17:58,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 05:17:58,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 05:17:58,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 05:17:58,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 05:17:58,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 05:17:58,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 05:17:58,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 05:17:58,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 05:17:58,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (1/1) ... [2023-08-24 05:17:58,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 05:17:58,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 05:17:58,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-24 05:17:58,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-24 05:17:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-24 05:17:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-24 05:17:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 05:17:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 05:17:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 05:17:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 05:17:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 05:17:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 05:17:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 05:17:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 05:17:58,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 05:17:58,201 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 05:17:58,300 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 05:17:58,302 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 05:17:58,421 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 05:17:58,435 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 05:17:58,435 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-24 05:17:58,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 05:17:58 BoogieIcfgContainer [2023-08-24 05:17:58,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 05:17:58,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 05:17:58,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 05:17:58,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 05:17:58,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 05:17:57" (1/3) ... [2023-08-24 05:17:58,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e85a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 05:17:58, skipping insertion in model container [2023-08-24 05:17:58,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:17:58" (2/3) ... [2023-08-24 05:17:58,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e85a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 05:17:58, skipping insertion in model container [2023-08-24 05:17:58,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 05:17:58" (3/3) ... [2023-08-24 05:17:58,446 INFO L112 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs.i [2023-08-24 05:17:58,461 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 05:17:58,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 05:17:58,462 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 05:17:58,523 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:17:58,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 40 transitions, 85 flow [2023-08-24 05:17:58,603 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2023-08-24 05:17:58,603 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 05:17:58,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2023-08-24 05:17:58,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 40 transitions, 85 flow [2023-08-24 05:17:58,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 34 transitions, 73 flow [2023-08-24 05:17:58,614 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:17:58,626 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 34 transitions, 73 flow [2023-08-24 05:17:58,629 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 34 transitions, 73 flow [2023-08-24 05:17:58,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 34 transitions, 73 flow [2023-08-24 05:17:58,651 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2023-08-24 05:17:58,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 05:17:58,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-24 05:17:58,652 INFO L119 LiptonReduction]: Number of co-enabled transitions 154 [2023-08-24 05:17:59,882 INFO L134 LiptonReduction]: Checked pairs total: 140 [2023-08-24 05:17:59,883 INFO L136 LiptonReduction]: Total number of compositions: 35 [2023-08-24 05:17:59,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:17:59,906 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:17:59,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:17:59,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:17:59,909 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-24 05:17:59,909 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 05:17:59,909 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:17:59,909 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 05:17:59,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:17:59,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:17:59,914 INFO L85 PathProgramCache]: Analyzing trace with hash 5445696, now seen corresponding path program 1 times [2023-08-24 05:17:59,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:17:59,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126198580] [2023-08-24 05:17:59,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:17:59,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:17:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:17:59,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:00,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:00,030 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:00,031 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:00,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 05:18:00,033 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:00,035 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:00,036 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:00,036 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-24 05:18:00,047 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:00,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 116 flow [2023-08-24 05:18:00,061 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2023-08-24 05:18:00,061 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 05:18:00,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 51. Up to 6 conditions per place. [2023-08-24 05:18:00,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 52 transitions, 116 flow [2023-08-24 05:18:00,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 46 transitions, 104 flow [2023-08-24 05:18:00,063 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:00,064 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 46 transitions, 104 flow [2023-08-24 05:18:00,064 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 46 transitions, 104 flow [2023-08-24 05:18:00,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 46 transitions, 104 flow [2023-08-24 05:18:00,071 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2023-08-24 05:18:00,072 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 05:18:00,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 56 events. 0/56 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-08-24 05:18:00,072 INFO L119 LiptonReduction]: Number of co-enabled transitions 572 [2023-08-24 05:18:01,254 INFO L134 LiptonReduction]: Checked pairs total: 898 [2023-08-24 05:18:01,255 INFO L136 LiptonReduction]: Total number of compositions: 37 [2023-08-24 05:18:01,257 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:01,258 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:01,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:01,261 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:01,261 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-08-24 05:18:01,262 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 05:18:01,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:01,262 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2023-08-24 05:18:01,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:01,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:01,263 INFO L85 PathProgramCache]: Analyzing trace with hash -2122319815, now seen corresponding path program 1 times [2023-08-24 05:18:01,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:01,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048390887] [2023-08-24 05:18:01,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:01,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:01,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:01,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:01,302 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:01,302 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:01,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 05:18:01,302 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:01,303 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:01,303 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:01,303 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-24 05:18:01,316 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:01,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 64 transitions, 149 flow [2023-08-24 05:18:01,332 INFO L124 PetriNetUnfolderBase]: 4/98 cut-off events. [2023-08-24 05:18:01,333 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 05:18:01,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 98 events. 4/98 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 149 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 78. Up to 8 conditions per place. [2023-08-24 05:18:01,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 64 transitions, 149 flow [2023-08-24 05:18:01,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 58 transitions, 137 flow [2023-08-24 05:18:01,334 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:01,335 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 58 transitions, 137 flow [2023-08-24 05:18:01,335 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 58 transitions, 137 flow [2023-08-24 05:18:01,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 58 transitions, 137 flow [2023-08-24 05:18:01,351 INFO L124 PetriNetUnfolderBase]: 0/74 cut-off events. [2023-08-24 05:18:01,351 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 05:18:01,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 74 events. 0/74 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-24 05:18:01,353 INFO L119 LiptonReduction]: Number of co-enabled transitions 1254 [2023-08-24 05:18:02,508 INFO L134 LiptonReduction]: Checked pairs total: 2000 [2023-08-24 05:18:02,508 INFO L136 LiptonReduction]: Total number of compositions: 45 [2023-08-24 05:18:02,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:02,512 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:02,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:02,515 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:02,515 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-08-24 05:18:02,515 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 05:18:02,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:02,516 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2023-08-24 05:18:02,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:02,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:02,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1147924095, now seen corresponding path program 1 times [2023-08-24 05:18:02,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:02,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394061991] [2023-08-24 05:18:02,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:02,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:02,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:02,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:02,560 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:02,560 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:02,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 05:18:02,561 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:02,561 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:02,561 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:02,562 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-24 05:18:02,577 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:02,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 184 flow [2023-08-24 05:18:02,598 INFO L124 PetriNetUnfolderBase]: 5/122 cut-off events. [2023-08-24 05:18:02,599 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 05:18:02,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 122 events. 5/122 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 205 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 106. Up to 10 conditions per place. [2023-08-24 05:18:02,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 184 flow [2023-08-24 05:18:02,600 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 172 flow [2023-08-24 05:18:02,601 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:02,601 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 70 transitions, 172 flow [2023-08-24 05:18:02,601 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 70 transitions, 172 flow [2023-08-24 05:18:02,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 172 flow [2023-08-24 05:18:02,611 INFO L124 PetriNetUnfolderBase]: 0/92 cut-off events. [2023-08-24 05:18:02,611 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 05:18:02,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 92 events. 0/92 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-08-24 05:18:02,613 INFO L119 LiptonReduction]: Number of co-enabled transitions 2200 [2023-08-24 05:18:03,808 INFO L134 LiptonReduction]: Checked pairs total: 3509 [2023-08-24 05:18:03,808 INFO L136 LiptonReduction]: Total number of compositions: 53 [2023-08-24 05:18:03,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:03,811 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:03,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:03,815 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:03,815 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-08-24 05:18:03,815 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 05:18:03,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:03,815 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:03,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:03,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:03,816 INFO L85 PathProgramCache]: Analyzing trace with hash 648710502, now seen corresponding path program 1 times [2023-08-24 05:18:03,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:03,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833782692] [2023-08-24 05:18:03,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:03,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:03,841 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:03,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:03,865 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:03,866 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:03,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 05:18:03,866 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:03,867 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:03,867 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:03,867 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-24 05:18:03,892 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:03,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 88 transitions, 221 flow [2023-08-24 05:18:03,920 INFO L124 PetriNetUnfolderBase]: 6/146 cut-off events. [2023-08-24 05:18:03,920 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 05:18:03,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 146 events. 6/146 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 260 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 135. Up to 12 conditions per place. [2023-08-24 05:18:03,921 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 88 transitions, 221 flow [2023-08-24 05:18:03,922 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 82 transitions, 209 flow [2023-08-24 05:18:03,922 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:03,923 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 209 flow [2023-08-24 05:18:03,923 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 209 flow [2023-08-24 05:18:03,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 209 flow [2023-08-24 05:18:03,949 INFO L124 PetriNetUnfolderBase]: 0/110 cut-off events. [2023-08-24 05:18:03,949 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 05:18:03,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 110 events. 0/110 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 139 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-08-24 05:18:03,952 INFO L119 LiptonReduction]: Number of co-enabled transitions 3410 [2023-08-24 05:18:05,321 INFO L134 LiptonReduction]: Checked pairs total: 5066 [2023-08-24 05:18:05,321 INFO L136 LiptonReduction]: Total number of compositions: 61 [2023-08-24 05:18:05,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:05,324 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:05,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:05,327 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:05,327 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2023-08-24 05:18:05,328 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 05:18:05,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:05,328 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:05,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:05,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:05,328 INFO L85 PathProgramCache]: Analyzing trace with hash -545520245, now seen corresponding path program 1 times [2023-08-24 05:18:05,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:05,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880266530] [2023-08-24 05:18:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:05,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:05,350 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:05,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:05,368 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:05,368 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:05,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 05:18:05,368 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:05,369 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:05,369 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:05,369 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-24 05:18:05,387 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:05,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 100 transitions, 260 flow [2023-08-24 05:18:05,404 INFO L124 PetriNetUnfolderBase]: 7/170 cut-off events. [2023-08-24 05:18:05,404 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 05:18:05,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 170 events. 7/170 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 310 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 165. Up to 14 conditions per place. [2023-08-24 05:18:05,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 100 transitions, 260 flow [2023-08-24 05:18:05,406 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 94 transitions, 248 flow [2023-08-24 05:18:05,406 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:05,406 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 94 transitions, 248 flow [2023-08-24 05:18:05,407 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 94 transitions, 248 flow [2023-08-24 05:18:05,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 94 transitions, 248 flow [2023-08-24 05:18:05,418 INFO L124 PetriNetUnfolderBase]: 0/128 cut-off events. [2023-08-24 05:18:05,418 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 05:18:05,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 128 events. 0/128 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 158 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-08-24 05:18:05,424 INFO L119 LiptonReduction]: Number of co-enabled transitions 4884 [2023-08-24 05:18:06,951 INFO L134 LiptonReduction]: Checked pairs total: 7171 [2023-08-24 05:18:06,951 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-24 05:18:06,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:06,953 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:06,953 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:06,957 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:06,957 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2023-08-24 05:18:06,957 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 05:18:06,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:06,957 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:06,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:06,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:06,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2042940141, now seen corresponding path program 1 times [2023-08-24 05:18:06,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:06,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639160120] [2023-08-24 05:18:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:06,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:06,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:07,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:07,030 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:07,030 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:07,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 05:18:07,030 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:07,031 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:07,031 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:07,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-24 05:18:07,051 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:07,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 112 transitions, 301 flow [2023-08-24 05:18:07,099 INFO L124 PetriNetUnfolderBase]: 8/194 cut-off events. [2023-08-24 05:18:07,100 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 05:18:07,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 194 events. 8/194 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 386 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 197. Up to 16 conditions per place. [2023-08-24 05:18:07,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 112 transitions, 301 flow [2023-08-24 05:18:07,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 106 transitions, 289 flow [2023-08-24 05:18:07,104 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:07,105 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 106 transitions, 289 flow [2023-08-24 05:18:07,105 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 106 transitions, 289 flow [2023-08-24 05:18:07,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 106 transitions, 289 flow [2023-08-24 05:18:07,122 INFO L124 PetriNetUnfolderBase]: 0/146 cut-off events. [2023-08-24 05:18:07,122 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 05:18:07,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 146 events. 0/146 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 202 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2023-08-24 05:18:07,126 INFO L119 LiptonReduction]: Number of co-enabled transitions 6622 [2023-08-24 05:18:08,755 INFO L134 LiptonReduction]: Checked pairs total: 11535 [2023-08-24 05:18:08,755 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-08-24 05:18:08,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:08,757 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:08,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:08,761 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:08,762 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2023-08-24 05:18:08,762 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 05:18:08,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:08,762 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:08,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:08,763 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:08,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1825454941, now seen corresponding path program 1 times [2023-08-24 05:18:08,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:08,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666558637] [2023-08-24 05:18:08,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:08,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:08,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:08,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:08,833 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:08,833 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:08,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 05:18:08,833 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:08,834 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:08,834 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:08,834 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-24 05:18:08,854 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:08,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 124 transitions, 344 flow [2023-08-24 05:18:08,876 INFO L124 PetriNetUnfolderBase]: 9/218 cut-off events. [2023-08-24 05:18:08,876 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 05:18:08,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 218 events. 9/218 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 444 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 231. Up to 18 conditions per place. [2023-08-24 05:18:08,878 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 124 transitions, 344 flow [2023-08-24 05:18:08,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 118 transitions, 332 flow [2023-08-24 05:18:08,879 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:08,879 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 118 transitions, 332 flow [2023-08-24 05:18:08,880 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 118 transitions, 332 flow [2023-08-24 05:18:08,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 118 transitions, 332 flow [2023-08-24 05:18:08,899 INFO L124 PetriNetUnfolderBase]: 0/164 cut-off events. [2023-08-24 05:18:08,900 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 05:18:08,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 164 events. 0/164 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 236 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2023-08-24 05:18:08,905 INFO L119 LiptonReduction]: Number of co-enabled transitions 8624 [2023-08-24 05:18:10,600 INFO L134 LiptonReduction]: Checked pairs total: 14244 [2023-08-24 05:18:10,600 INFO L136 LiptonReduction]: Total number of compositions: 85 [2023-08-24 05:18:10,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:10,602 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:10,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:10,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:10,607 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2023-08-24 05:18:10,607 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 05:18:10,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:10,607 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:10,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:10,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:10,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2056706496, now seen corresponding path program 1 times [2023-08-24 05:18:10,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:10,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774433175] [2023-08-24 05:18:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:10,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:10,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:10,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:10,669 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:10,669 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:10,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 05:18:10,670 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:10,670 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:10,670 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:10,670 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-24 05:18:10,702 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:10,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 136 transitions, 389 flow [2023-08-24 05:18:10,727 INFO L124 PetriNetUnfolderBase]: 10/242 cut-off events. [2023-08-24 05:18:10,727 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 05:18:10,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 242 events. 10/242 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 488 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 266. Up to 20 conditions per place. [2023-08-24 05:18:10,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 136 transitions, 389 flow [2023-08-24 05:18:10,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 130 transitions, 377 flow [2023-08-24 05:18:10,730 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:10,730 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 130 transitions, 377 flow [2023-08-24 05:18:10,731 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 130 transitions, 377 flow [2023-08-24 05:18:10,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 130 transitions, 377 flow [2023-08-24 05:18:10,749 INFO L124 PetriNetUnfolderBase]: 0/182 cut-off events. [2023-08-24 05:18:10,750 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 05:18:10,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 182 events. 0/182 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 259 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2023-08-24 05:18:10,756 INFO L119 LiptonReduction]: Number of co-enabled transitions 10890 [2023-08-24 05:18:12,517 INFO L134 LiptonReduction]: Checked pairs total: 16636 [2023-08-24 05:18:12,517 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-08-24 05:18:12,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:12,519 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:12,519 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:12,524 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:12,525 INFO L124 PetriNetUnfolderBase]: 0/55 cut-off events. [2023-08-24 05:18:12,525 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 05:18:12,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:12,525 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:12,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:12,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:12,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1398978313, now seen corresponding path program 1 times [2023-08-24 05:18:12,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:12,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486540214] [2023-08-24 05:18:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:12,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:12,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:12,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:12,558 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:12,558 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:12,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 05:18:12,559 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:12,559 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:12,559 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:12,559 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-24 05:18:12,581 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:12,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 148 transitions, 436 flow [2023-08-24 05:18:12,632 INFO L124 PetriNetUnfolderBase]: 11/266 cut-off events. [2023-08-24 05:18:12,632 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 05:18:12,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 266 events. 11/266 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 535 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 302. Up to 22 conditions per place. [2023-08-24 05:18:12,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 148 transitions, 436 flow [2023-08-24 05:18:12,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 142 transitions, 424 flow [2023-08-24 05:18:12,635 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:12,635 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 142 transitions, 424 flow [2023-08-24 05:18:12,636 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 142 transitions, 424 flow [2023-08-24 05:18:12,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 142 transitions, 424 flow [2023-08-24 05:18:12,660 INFO L124 PetriNetUnfolderBase]: 0/200 cut-off events. [2023-08-24 05:18:12,660 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 05:18:12,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 200 events. 0/200 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 283 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2023-08-24 05:18:12,666 INFO L119 LiptonReduction]: Number of co-enabled transitions 13420 [2023-08-24 05:18:14,579 INFO L134 LiptonReduction]: Checked pairs total: 23030 [2023-08-24 05:18:14,579 INFO L136 LiptonReduction]: Total number of compositions: 101 [2023-08-24 05:18:14,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:14,581 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:14,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:14,587 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:14,587 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2023-08-24 05:18:14,588 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 05:18:14,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:14,588 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:14,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:14,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:14,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1128663187, now seen corresponding path program 1 times [2023-08-24 05:18:14,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:14,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161094977] [2023-08-24 05:18:14,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:14,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:14,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:14,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:14,647 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:14,647 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:14,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 05:18:14,647 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:14,647 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:14,648 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:14,648 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-24 05:18:14,674 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:14,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 160 transitions, 485 flow [2023-08-24 05:18:14,711 INFO L124 PetriNetUnfolderBase]: 12/290 cut-off events. [2023-08-24 05:18:14,712 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 05:18:14,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 290 events. 12/290 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 596 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 339. Up to 24 conditions per place. [2023-08-24 05:18:14,714 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 160 transitions, 485 flow [2023-08-24 05:18:14,714 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 154 transitions, 473 flow [2023-08-24 05:18:14,715 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:14,715 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 154 transitions, 473 flow [2023-08-24 05:18:14,715 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 154 transitions, 473 flow [2023-08-24 05:18:14,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 154 transitions, 473 flow [2023-08-24 05:18:14,737 INFO L124 PetriNetUnfolderBase]: 0/218 cut-off events. [2023-08-24 05:18:14,738 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 05:18:14,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 218 events. 0/218 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 318 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-08-24 05:18:14,743 INFO L119 LiptonReduction]: Number of co-enabled transitions 16214 [2023-08-24 05:18:16,903 INFO L134 LiptonReduction]: Checked pairs total: 28920 [2023-08-24 05:18:16,903 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-08-24 05:18:16,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:16,905 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:16,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:16,912 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:16,912 INFO L124 PetriNetUnfolderBase]: 0/67 cut-off events. [2023-08-24 05:18:16,912 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 05:18:16,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:16,912 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:16,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:16,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:16,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1923067136, now seen corresponding path program 1 times [2023-08-24 05:18:16,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:16,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605153956] [2023-08-24 05:18:16,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:16,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:16,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:16,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:16,962 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:16,962 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:16,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 05:18:16,962 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:16,965 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:16,965 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:16,965 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-24 05:18:16,990 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:16,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 172 transitions, 536 flow [2023-08-24 05:18:17,029 INFO L124 PetriNetUnfolderBase]: 13/314 cut-off events. [2023-08-24 05:18:17,030 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 05:18:17,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 314 events. 13/314 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 641 event pairs, 0 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 377. Up to 26 conditions per place. [2023-08-24 05:18:17,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 172 transitions, 536 flow [2023-08-24 05:18:17,033 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 166 transitions, 524 flow [2023-08-24 05:18:17,034 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:17,034 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 166 transitions, 524 flow [2023-08-24 05:18:17,034 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 166 transitions, 524 flow [2023-08-24 05:18:17,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 166 transitions, 524 flow [2023-08-24 05:18:17,064 INFO L124 PetriNetUnfolderBase]: 0/236 cut-off events. [2023-08-24 05:18:17,065 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 05:18:17,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 236 events. 0/236 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 343 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2023-08-24 05:18:17,070 INFO L119 LiptonReduction]: Number of co-enabled transitions 19272 [2023-08-24 05:18:19,232 INFO L134 LiptonReduction]: Checked pairs total: 30445 [2023-08-24 05:18:19,233 INFO L136 LiptonReduction]: Total number of compositions: 117 [2023-08-24 05:18:19,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:19,234 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:19,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:19,242 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:19,242 INFO L124 PetriNetUnfolderBase]: 0/73 cut-off events. [2023-08-24 05:18:19,243 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 05:18:19,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:19,243 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:19,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:19,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:19,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1288356902, now seen corresponding path program 1 times [2023-08-24 05:18:19,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:19,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629894387] [2023-08-24 05:18:19,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:19,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:19,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:19,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:19,294 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:19,296 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:19,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 05:18:19,301 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:19,303 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:19,303 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:19,303 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-24 05:18:19,331 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:19,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 184 transitions, 589 flow [2023-08-24 05:18:19,375 INFO L124 PetriNetUnfolderBase]: 14/338 cut-off events. [2023-08-24 05:18:19,376 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 05:18:19,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 338 events. 14/338 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 704 event pairs, 0 based on Foata normal form. 0/297 useless extension candidates. Maximal degree in co-relation 416. Up to 28 conditions per place. [2023-08-24 05:18:19,379 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 184 transitions, 589 flow [2023-08-24 05:18:19,380 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 205 places, 178 transitions, 577 flow [2023-08-24 05:18:19,380 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:19,380 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 178 transitions, 577 flow [2023-08-24 05:18:19,380 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 178 transitions, 577 flow [2023-08-24 05:18:19,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 178 transitions, 577 flow [2023-08-24 05:18:19,417 INFO L124 PetriNetUnfolderBase]: 0/254 cut-off events. [2023-08-24 05:18:19,417 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 05:18:19,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 254 events. 0/254 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 376 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2023-08-24 05:18:19,424 INFO L119 LiptonReduction]: Number of co-enabled transitions 22594 [2023-08-24 05:18:21,846 INFO L134 LiptonReduction]: Checked pairs total: 34937 [2023-08-24 05:18:21,846 INFO L136 LiptonReduction]: Total number of compositions: 125 [2023-08-24 05:18:21,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:21,848 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:21,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:21,857 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:21,857 INFO L124 PetriNetUnfolderBase]: 0/79 cut-off events. [2023-08-24 05:18:21,857 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 05:18:21,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:21,857 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:21,857 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:21,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:21,858 INFO L85 PathProgramCache]: Analyzing trace with hash -871293175, now seen corresponding path program 1 times [2023-08-24 05:18:21,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:21,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853065043] [2023-08-24 05:18:21,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:21,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:21,881 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:21,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:21,900 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:21,900 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:21,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-24 05:18:21,900 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:21,902 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:21,902 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:21,902 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-24 05:18:21,933 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:21,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 224 places, 196 transitions, 644 flow [2023-08-24 05:18:21,987 INFO L124 PetriNetUnfolderBase]: 15/362 cut-off events. [2023-08-24 05:18:21,987 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 05:18:21,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 362 events. 15/362 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 725 event pairs, 0 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 456. Up to 30 conditions per place. [2023-08-24 05:18:21,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 224 places, 196 transitions, 644 flow [2023-08-24 05:18:21,992 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 190 transitions, 632 flow [2023-08-24 05:18:21,992 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:21,992 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 190 transitions, 632 flow [2023-08-24 05:18:21,993 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 190 transitions, 632 flow [2023-08-24 05:18:21,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 190 transitions, 632 flow [2023-08-24 05:18:22,030 INFO L124 PetriNetUnfolderBase]: 0/272 cut-off events. [2023-08-24 05:18:22,031 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 05:18:22,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 272 events. 0/272 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 384 event pairs, 0 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2023-08-24 05:18:22,039 INFO L119 LiptonReduction]: Number of co-enabled transitions 26180 [2023-08-24 05:18:24,415 INFO L134 LiptonReduction]: Checked pairs total: 41158 [2023-08-24 05:18:24,415 INFO L136 LiptonReduction]: Total number of compositions: 133 [2023-08-24 05:18:24,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:24,416 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:24,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:24,426 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:24,426 INFO L124 PetriNetUnfolderBase]: 0/85 cut-off events. [2023-08-24 05:18:24,426 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 05:18:24,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:24,426 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:24,426 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:24,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:24,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1654611129, now seen corresponding path program 1 times [2023-08-24 05:18:24,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:24,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082842592] [2023-08-24 05:18:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:24,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:24,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:24,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:24,460 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:24,460 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:24,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-24 05:18:24,461 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:24,461 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:24,461 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:24,461 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-24 05:18:24,490 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:24,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 208 transitions, 701 flow [2023-08-24 05:18:24,543 INFO L124 PetriNetUnfolderBase]: 16/386 cut-off events. [2023-08-24 05:18:24,543 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 05:18:24,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 386 events. 16/386 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 779 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 497. Up to 32 conditions per place. [2023-08-24 05:18:24,547 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 208 transitions, 701 flow [2023-08-24 05:18:24,548 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 202 transitions, 689 flow [2023-08-24 05:18:24,548 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:24,548 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 202 transitions, 689 flow [2023-08-24 05:18:24,549 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 202 transitions, 689 flow [2023-08-24 05:18:24,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 202 transitions, 689 flow [2023-08-24 05:18:24,587 INFO L124 PetriNetUnfolderBase]: 0/290 cut-off events. [2023-08-24 05:18:24,587 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 05:18:24,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 290 events. 0/290 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 413 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2023-08-24 05:18:24,596 INFO L119 LiptonReduction]: Number of co-enabled transitions 30030 [2023-08-24 05:18:27,152 INFO L134 LiptonReduction]: Checked pairs total: 52732 [2023-08-24 05:18:27,152 INFO L136 LiptonReduction]: Total number of compositions: 141 [2023-08-24 05:18:27,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:27,154 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:27,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:27,163 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:27,163 INFO L124 PetriNetUnfolderBase]: 0/91 cut-off events. [2023-08-24 05:18:27,163 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 05:18:27,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:27,164 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:27,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:27,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:27,164 INFO L85 PathProgramCache]: Analyzing trace with hash -196853922, now seen corresponding path program 1 times [2023-08-24 05:18:27,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:27,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301618359] [2023-08-24 05:18:27,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:27,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:27,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:27,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:27,209 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:27,212 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:27,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-24 05:18:27,212 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:27,213 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:27,213 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:27,213 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-24 05:18:27,244 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:27,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 220 transitions, 760 flow [2023-08-24 05:18:27,303 INFO L124 PetriNetUnfolderBase]: 17/410 cut-off events. [2023-08-24 05:18:27,303 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 05:18:27,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 410 events. 17/410 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 838 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 539. Up to 34 conditions per place. [2023-08-24 05:18:27,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 220 transitions, 760 flow [2023-08-24 05:18:27,309 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 247 places, 214 transitions, 748 flow [2023-08-24 05:18:27,309 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:27,309 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 214 transitions, 748 flow [2023-08-24 05:18:27,310 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 214 transitions, 748 flow [2023-08-24 05:18:27,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 214 transitions, 748 flow [2023-08-24 05:18:27,354 INFO L124 PetriNetUnfolderBase]: 0/308 cut-off events. [2023-08-24 05:18:27,355 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 05:18:27,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 308 events. 0/308 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 447 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2023-08-24 05:18:27,365 INFO L119 LiptonReduction]: Number of co-enabled transitions 34144 [2023-08-24 05:18:29,897 INFO L134 LiptonReduction]: Checked pairs total: 56549 [2023-08-24 05:18:29,898 INFO L136 LiptonReduction]: Total number of compositions: 149 [2023-08-24 05:18:29,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:29,899 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:29,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:29,910 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:29,910 INFO L124 PetriNetUnfolderBase]: 0/97 cut-off events. [2023-08-24 05:18:29,910 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 05:18:29,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:29,911 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:29,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:29,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:29,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1158000244, now seen corresponding path program 1 times [2023-08-24 05:18:29,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:29,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167998502] [2023-08-24 05:18:29,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:29,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:29,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:29,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:29,957 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:29,957 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:29,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-24 05:18:29,957 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:29,958 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:29,958 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:29,958 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-24 05:18:29,990 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:29,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 266 places, 232 transitions, 821 flow [2023-08-24 05:18:30,057 INFO L124 PetriNetUnfolderBase]: 18/434 cut-off events. [2023-08-24 05:18:30,057 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 05:18:30,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 434 events. 18/434 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 888 event pairs, 0 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 582. Up to 36 conditions per place. [2023-08-24 05:18:30,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 266 places, 232 transitions, 821 flow [2023-08-24 05:18:30,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 226 transitions, 809 flow [2023-08-24 05:18:30,064 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:30,065 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 226 transitions, 809 flow [2023-08-24 05:18:30,065 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 226 transitions, 809 flow [2023-08-24 05:18:30,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 226 transitions, 809 flow [2023-08-24 05:18:30,113 INFO L124 PetriNetUnfolderBase]: 0/326 cut-off events. [2023-08-24 05:18:30,113 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 05:18:30,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 326 events. 0/326 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 471 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2023-08-24 05:18:30,124 INFO L119 LiptonReduction]: Number of co-enabled transitions 38522 [2023-08-24 05:18:32,859 INFO L134 LiptonReduction]: Checked pairs total: 62993 [2023-08-24 05:18:32,859 INFO L136 LiptonReduction]: Total number of compositions: 157 [2023-08-24 05:18:32,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:32,860 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:32,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:32,872 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:32,872 INFO L124 PetriNetUnfolderBase]: 0/103 cut-off events. [2023-08-24 05:18:32,872 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 05:18:32,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:32,873 INFO L208 CegarLoopForPetriNet]: trace histogram [17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:32,873 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:32,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:32,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1202704567, now seen corresponding path program 1 times [2023-08-24 05:18:32,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:32,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326596660] [2023-08-24 05:18:32,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:32,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:32,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:32,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:32,916 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:32,916 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:32,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-24 05:18:32,916 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:32,917 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:32,917 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:32,917 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-24 05:18:32,948 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:32,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 244 transitions, 884 flow [2023-08-24 05:18:33,020 INFO L124 PetriNetUnfolderBase]: 19/458 cut-off events. [2023-08-24 05:18:33,020 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 05:18:33,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 458 events. 19/458 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 973 event pairs, 0 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 626. Up to 38 conditions per place. [2023-08-24 05:18:33,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 244 transitions, 884 flow [2023-08-24 05:18:33,028 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 238 transitions, 872 flow [2023-08-24 05:18:33,028 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:33,028 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 238 transitions, 872 flow [2023-08-24 05:18:33,029 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 238 transitions, 872 flow [2023-08-24 05:18:33,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 238 transitions, 872 flow [2023-08-24 05:18:33,088 INFO L124 PetriNetUnfolderBase]: 0/344 cut-off events. [2023-08-24 05:18:33,088 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 05:18:33,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 344 events. 0/344 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 502 event pairs, 0 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2023-08-24 05:18:33,101 INFO L119 LiptonReduction]: Number of co-enabled transitions 43164 [2023-08-24 05:18:36,030 INFO L134 LiptonReduction]: Checked pairs total: 71139 [2023-08-24 05:18:36,030 INFO L136 LiptonReduction]: Total number of compositions: 165 [2023-08-24 05:18:36,031 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:36,031 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:36,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:36,045 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:36,045 INFO L124 PetriNetUnfolderBase]: 0/109 cut-off events. [2023-08-24 05:18:36,045 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 05:18:36,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:36,045 INFO L208 CegarLoopForPetriNet]: trace histogram [18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:36,046 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:36,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:36,046 INFO L85 PathProgramCache]: Analyzing trace with hash 939726977, now seen corresponding path program 1 times [2023-08-24 05:18:36,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:36,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313474411] [2023-08-24 05:18:36,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:36,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:36,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:36,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:36,090 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:36,090 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:36,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-24 05:18:36,090 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:36,090 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:36,090 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:36,090 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-24 05:18:36,124 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:36,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 256 transitions, 949 flow [2023-08-24 05:18:36,202 INFO L124 PetriNetUnfolderBase]: 20/482 cut-off events. [2023-08-24 05:18:36,203 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 05:18:36,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 482 events. 20/482 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 989 event pairs, 0 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 671. Up to 40 conditions per place. [2023-08-24 05:18:36,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 256 transitions, 949 flow [2023-08-24 05:18:36,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 289 places, 250 transitions, 937 flow [2023-08-24 05:18:36,211 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:36,211 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 250 transitions, 937 flow [2023-08-24 05:18:36,211 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 250 transitions, 937 flow [2023-08-24 05:18:36,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 250 transitions, 937 flow [2023-08-24 05:18:36,268 INFO L124 PetriNetUnfolderBase]: 0/362 cut-off events. [2023-08-24 05:18:36,268 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 05:18:36,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 362 events. 0/362 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 522 event pairs, 0 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2023-08-24 05:18:36,282 INFO L119 LiptonReduction]: Number of co-enabled transitions 48070 [2023-08-24 05:18:39,165 INFO L134 LiptonReduction]: Checked pairs total: 77024 [2023-08-24 05:18:39,166 INFO L136 LiptonReduction]: Total number of compositions: 173 [2023-08-24 05:18:39,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:39,167 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:39,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:39,181 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:39,181 INFO L124 PetriNetUnfolderBase]: 0/115 cut-off events. [2023-08-24 05:18:39,181 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 05:18:39,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:39,181 INFO L208 CegarLoopForPetriNet]: trace histogram [19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:39,181 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:39,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:39,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1263150977, now seen corresponding path program 1 times [2023-08-24 05:18:39,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:39,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860772809] [2023-08-24 05:18:39,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:39,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:39,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:39,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:39,226 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:39,226 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:39,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-24 05:18:39,226 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:39,227 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:39,227 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:39,227 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-24 05:18:39,266 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:39,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 268 transitions, 1016 flow [2023-08-24 05:18:39,385 INFO L124 PetriNetUnfolderBase]: 21/506 cut-off events. [2023-08-24 05:18:39,386 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 05:18:39,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 506 events. 21/506 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1056 event pairs, 0 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 717. Up to 42 conditions per place. [2023-08-24 05:18:39,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 268 transitions, 1016 flow [2023-08-24 05:18:39,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 303 places, 262 transitions, 1004 flow [2023-08-24 05:18:39,394 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:39,394 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 303 places, 262 transitions, 1004 flow [2023-08-24 05:18:39,394 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 303 places, 262 transitions, 1004 flow [2023-08-24 05:18:39,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 303 places, 262 transitions, 1004 flow [2023-08-24 05:18:39,456 INFO L124 PetriNetUnfolderBase]: 0/380 cut-off events. [2023-08-24 05:18:39,457 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 05:18:39,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 380 events. 0/380 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 565 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2023-08-24 05:18:39,471 INFO L119 LiptonReduction]: Number of co-enabled transitions 53240 [2023-08-24 05:18:42,553 INFO L134 LiptonReduction]: Checked pairs total: 84850 [2023-08-24 05:18:42,553 INFO L136 LiptonReduction]: Total number of compositions: 181 [2023-08-24 05:18:42,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:42,555 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:42,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:42,574 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:42,574 INFO L124 PetriNetUnfolderBase]: 0/121 cut-off events. [2023-08-24 05:18:42,574 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 05:18:42,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:42,574 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:42,575 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:42,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:42,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1466920370, now seen corresponding path program 1 times [2023-08-24 05:18:42,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:42,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777495893] [2023-08-24 05:18:42,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:42,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:42,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:42,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:42,633 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:42,633 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:42,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-24 05:18:42,633 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:42,634 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:42,634 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:42,634 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-24 05:18:42,676 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:42,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 322 places, 280 transitions, 1085 flow [2023-08-24 05:18:42,767 INFO L124 PetriNetUnfolderBase]: 22/530 cut-off events. [2023-08-24 05:18:42,767 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 05:18:42,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 530 events. 22/530 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1088 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 764. Up to 44 conditions per place. [2023-08-24 05:18:42,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 322 places, 280 transitions, 1085 flow [2023-08-24 05:18:42,777 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 274 transitions, 1073 flow [2023-08-24 05:18:42,777 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:42,777 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 317 places, 274 transitions, 1073 flow [2023-08-24 05:18:42,777 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 317 places, 274 transitions, 1073 flow [2023-08-24 05:18:42,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 274 transitions, 1073 flow [2023-08-24 05:18:42,832 INFO L124 PetriNetUnfolderBase]: 0/398 cut-off events. [2023-08-24 05:18:42,832 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 05:18:42,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 398 events. 0/398 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 581 event pairs, 0 based on Foata normal form. 0/377 useless extension candidates. Maximal degree in co-relation 0. Up to 22 conditions per place. [2023-08-24 05:18:42,849 INFO L119 LiptonReduction]: Number of co-enabled transitions 58674 [2023-08-24 05:18:45,891 INFO L134 LiptonReduction]: Checked pairs total: 98430 [2023-08-24 05:18:45,891 INFO L136 LiptonReduction]: Total number of compositions: 189 [2023-08-24 05:18:45,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:45,893 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:45,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:45,905 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:45,906 INFO L124 PetriNetUnfolderBase]: 0/127 cut-off events. [2023-08-24 05:18:45,906 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 05:18:45,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:45,906 INFO L208 CegarLoopForPetriNet]: trace histogram [21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:45,906 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:45,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash 147972966, now seen corresponding path program 1 times [2023-08-24 05:18:45,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:45,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777836856] [2023-08-24 05:18:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:45,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:45,932 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:45,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:45,958 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:45,959 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:45,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-24 05:18:45,959 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:45,959 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:45,959 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:45,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-08-24 05:18:45,997 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:46,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 336 places, 292 transitions, 1156 flow [2023-08-24 05:18:46,094 INFO L124 PetriNetUnfolderBase]: 23/554 cut-off events. [2023-08-24 05:18:46,095 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 05:18:46,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 874 conditions, 554 events. 23/554 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1165 event pairs, 0 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 812. Up to 46 conditions per place. [2023-08-24 05:18:46,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 336 places, 292 transitions, 1156 flow [2023-08-24 05:18:46,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 331 places, 286 transitions, 1144 flow [2023-08-24 05:18:46,106 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:46,106 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 331 places, 286 transitions, 1144 flow [2023-08-24 05:18:46,106 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 331 places, 286 transitions, 1144 flow [2023-08-24 05:18:46,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 331 places, 286 transitions, 1144 flow [2023-08-24 05:18:46,178 INFO L124 PetriNetUnfolderBase]: 0/416 cut-off events. [2023-08-24 05:18:46,178 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 05:18:46,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 416 events. 0/416 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 626 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2023-08-24 05:18:46,196 INFO L119 LiptonReduction]: Number of co-enabled transitions 64372 [2023-08-24 05:18:49,596 INFO L134 LiptonReduction]: Checked pairs total: 116853 [2023-08-24 05:18:49,596 INFO L136 LiptonReduction]: Total number of compositions: 197 [2023-08-24 05:18:49,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:49,597 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:49,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:49,609 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:49,610 INFO L124 PetriNetUnfolderBase]: 0/133 cut-off events. [2023-08-24 05:18:49,610 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 05:18:49,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:49,610 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:49,610 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:49,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:49,610 INFO L85 PathProgramCache]: Analyzing trace with hash -576215557, now seen corresponding path program 1 times [2023-08-24 05:18:49,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:49,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948243540] [2023-08-24 05:18:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:49,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:49,636 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:49,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:49,659 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:49,659 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:49,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-24 05:18:49,660 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:49,660 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:49,660 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:49,660 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-08-24 05:18:49,701 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:49,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 304 transitions, 1229 flow [2023-08-24 05:18:49,807 INFO L124 PetriNetUnfolderBase]: 24/578 cut-off events. [2023-08-24 05:18:49,807 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 05:18:49,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 578 events. 24/578 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1203 event pairs, 0 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 861. Up to 48 conditions per place. [2023-08-24 05:18:49,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 350 places, 304 transitions, 1229 flow [2023-08-24 05:18:49,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 298 transitions, 1217 flow [2023-08-24 05:18:49,864 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:49,865 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 345 places, 298 transitions, 1217 flow [2023-08-24 05:18:49,865 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 345 places, 298 transitions, 1217 flow [2023-08-24 05:18:49,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 345 places, 298 transitions, 1217 flow [2023-08-24 05:18:49,945 INFO L124 PetriNetUnfolderBase]: 0/434 cut-off events. [2023-08-24 05:18:49,945 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 05:18:49,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 434 events. 0/434 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 642 event pairs, 0 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2023-08-24 05:18:49,965 INFO L119 LiptonReduction]: Number of co-enabled transitions 70334 [2023-08-24 05:18:53,662 INFO L134 LiptonReduction]: Checked pairs total: 111606 [2023-08-24 05:18:53,663 INFO L136 LiptonReduction]: Total number of compositions: 205 [2023-08-24 05:18:53,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:53,664 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:53,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:53,677 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:53,677 INFO L124 PetriNetUnfolderBase]: 0/139 cut-off events. [2023-08-24 05:18:53,677 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 05:18:53,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:53,677 INFO L208 CegarLoopForPetriNet]: trace histogram [23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:53,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:53,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:53,678 INFO L85 PathProgramCache]: Analyzing trace with hash 605710621, now seen corresponding path program 1 times [2023-08-24 05:18:53,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:53,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077378127] [2023-08-24 05:18:53,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:53,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:53,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:53,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:53,728 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:53,728 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:53,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-24 05:18:53,728 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:53,728 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:53,728 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:53,728 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-08-24 05:18:53,769 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:53,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 364 places, 316 transitions, 1304 flow [2023-08-24 05:18:53,877 INFO L124 PetriNetUnfolderBase]: 25/602 cut-off events. [2023-08-24 05:18:53,877 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 05:18:53,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 975 conditions, 602 events. 25/602 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1248 event pairs, 0 based on Foata normal form. 0/528 useless extension candidates. Maximal degree in co-relation 911. Up to 50 conditions per place. [2023-08-24 05:18:53,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 364 places, 316 transitions, 1304 flow [2023-08-24 05:18:53,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 310 transitions, 1292 flow [2023-08-24 05:18:53,890 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:53,890 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 359 places, 310 transitions, 1292 flow [2023-08-24 05:18:53,890 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 359 places, 310 transitions, 1292 flow [2023-08-24 05:18:53,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 310 transitions, 1292 flow [2023-08-24 05:18:53,970 INFO L124 PetriNetUnfolderBase]: 0/452 cut-off events. [2023-08-24 05:18:53,971 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 05:18:53,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 452 events. 0/452 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 670 event pairs, 0 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2023-08-24 05:18:53,986 INFO L119 LiptonReduction]: Number of co-enabled transitions 76560 [2023-08-24 05:18:57,509 INFO L134 LiptonReduction]: Checked pairs total: 121083 [2023-08-24 05:18:57,509 INFO L136 LiptonReduction]: Total number of compositions: 213 [2023-08-24 05:18:57,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:18:57,510 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:18:57,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:18:57,524 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:18:57,524 INFO L124 PetriNetUnfolderBase]: 0/145 cut-off events. [2023-08-24 05:18:57,524 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 05:18:57,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:18:57,525 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:18:57,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:18:57,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:18:57,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1109509464, now seen corresponding path program 1 times [2023-08-24 05:18:57,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:18:57,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602297300] [2023-08-24 05:18:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:18:57,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:18:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:57,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:18:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:18:57,588 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:18:57,588 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:18:57,588 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:18:57,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-24 05:18:57,589 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:18:57,589 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:18:57,589 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:18:57,589 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-08-24 05:18:57,632 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:18:57,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 378 places, 328 transitions, 1381 flow [2023-08-24 05:18:57,746 INFO L124 PetriNetUnfolderBase]: 26/626 cut-off events. [2023-08-24 05:18:57,746 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 05:18:57,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 626 events. 26/626 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1312 event pairs, 0 based on Foata normal form. 0/549 useless extension candidates. Maximal degree in co-relation 962. Up to 52 conditions per place. [2023-08-24 05:18:57,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 378 places, 328 transitions, 1381 flow [2023-08-24 05:18:57,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 322 transitions, 1369 flow [2023-08-24 05:18:57,757 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:18:57,757 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 322 transitions, 1369 flow [2023-08-24 05:18:57,757 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 322 transitions, 1369 flow [2023-08-24 05:18:57,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 322 transitions, 1369 flow [2023-08-24 05:18:57,827 INFO L124 PetriNetUnfolderBase]: 0/470 cut-off events. [2023-08-24 05:18:57,827 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 05:18:57,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 470 events. 0/470 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 705 event pairs, 0 based on Foata normal form. 0/445 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2023-08-24 05:18:57,844 INFO L119 LiptonReduction]: Number of co-enabled transitions 83050 [2023-08-24 05:19:01,463 INFO L134 LiptonReduction]: Checked pairs total: 140756 [2023-08-24 05:19:01,463 INFO L136 LiptonReduction]: Total number of compositions: 221 [2023-08-24 05:19:01,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:01,464 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:01,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:01,481 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:01,481 INFO L124 PetriNetUnfolderBase]: 0/151 cut-off events. [2023-08-24 05:19:01,481 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 05:19:01,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:01,482 INFO L208 CegarLoopForPetriNet]: trace histogram [25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:01,482 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:01,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:01,482 INFO L85 PathProgramCache]: Analyzing trace with hash 729871974, now seen corresponding path program 1 times [2023-08-24 05:19:01,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:01,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934793082] [2023-08-24 05:19:01,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:01,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:01,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:01,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:01,545 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:01,545 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:01,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-24 05:19:01,545 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:01,545 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:01,546 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:01,546 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-08-24 05:19:01,592 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:01,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 392 places, 340 transitions, 1460 flow [2023-08-24 05:19:01,713 INFO L124 PetriNetUnfolderBase]: 27/650 cut-off events. [2023-08-24 05:19:01,713 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 05:19:01,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1080 conditions, 650 events. 27/650 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1359 event pairs, 0 based on Foata normal form. 0/570 useless extension candidates. Maximal degree in co-relation 1014. Up to 54 conditions per place. [2023-08-24 05:19:01,722 INFO L82 GeneralOperation]: Start removeDead. Operand has 392 places, 340 transitions, 1460 flow [2023-08-24 05:19:01,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 387 places, 334 transitions, 1448 flow [2023-08-24 05:19:01,724 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:01,724 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 387 places, 334 transitions, 1448 flow [2023-08-24 05:19:01,724 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 387 places, 334 transitions, 1448 flow [2023-08-24 05:19:01,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 387 places, 334 transitions, 1448 flow [2023-08-24 05:19:01,825 INFO L124 PetriNetUnfolderBase]: 0/488 cut-off events. [2023-08-24 05:19:01,825 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 05:19:01,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 488 events. 0/488 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 728 event pairs, 0 based on Foata normal form. 0/462 useless extension candidates. Maximal degree in co-relation 0. Up to 27 conditions per place. [2023-08-24 05:19:01,843 INFO L119 LiptonReduction]: Number of co-enabled transitions 89804 [2023-08-24 05:19:05,616 INFO L134 LiptonReduction]: Checked pairs total: 149907 [2023-08-24 05:19:05,616 INFO L136 LiptonReduction]: Total number of compositions: 229 [2023-08-24 05:19:05,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:05,617 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:05,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:05,633 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:05,633 INFO L124 PetriNetUnfolderBase]: 0/157 cut-off events. [2023-08-24 05:19:05,633 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 05:19:05,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:05,633 INFO L208 CegarLoopForPetriNet]: trace histogram [26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:05,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:05,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:05,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2124113141, now seen corresponding path program 1 times [2023-08-24 05:19:05,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:05,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370535006] [2023-08-24 05:19:05,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:05,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:05,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:05,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:05,741 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:05,741 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:05,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-24 05:19:05,741 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:05,742 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:05,742 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:05,742 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-08-24 05:19:05,789 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:05,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 406 places, 352 transitions, 1541 flow [2023-08-24 05:19:05,917 INFO L124 PetriNetUnfolderBase]: 28/674 cut-off events. [2023-08-24 05:19:05,917 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 05:19:05,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 674 events. 28/674 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1421 event pairs, 0 based on Foata normal form. 0/591 useless extension candidates. Maximal degree in co-relation 1067. Up to 56 conditions per place. [2023-08-24 05:19:05,931 INFO L82 GeneralOperation]: Start removeDead. Operand has 406 places, 352 transitions, 1541 flow [2023-08-24 05:19:05,933 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 401 places, 346 transitions, 1529 flow [2023-08-24 05:19:05,934 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:05,934 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 401 places, 346 transitions, 1529 flow [2023-08-24 05:19:05,934 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 401 places, 346 transitions, 1529 flow [2023-08-24 05:19:05,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 401 places, 346 transitions, 1529 flow [2023-08-24 05:19:06,031 INFO L124 PetriNetUnfolderBase]: 0/506 cut-off events. [2023-08-24 05:19:06,031 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 05:19:06,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 966 conditions, 506 events. 0/506 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 763 event pairs, 0 based on Foata normal form. 0/479 useless extension candidates. Maximal degree in co-relation 0. Up to 28 conditions per place. [2023-08-24 05:19:06,053 INFO L119 LiptonReduction]: Number of co-enabled transitions 96822 [2023-08-24 05:19:09,807 INFO L134 LiptonReduction]: Checked pairs total: 161554 [2023-08-24 05:19:09,807 INFO L136 LiptonReduction]: Total number of compositions: 237 [2023-08-24 05:19:09,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:09,808 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:09,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:09,827 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:09,827 INFO L124 PetriNetUnfolderBase]: 0/163 cut-off events. [2023-08-24 05:19:09,827 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 05:19:09,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:09,827 INFO L208 CegarLoopForPetriNet]: trace histogram [27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:09,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:09,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:09,828 INFO L85 PathProgramCache]: Analyzing trace with hash -779766788, now seen corresponding path program 1 times [2023-08-24 05:19:09,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:09,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805823447] [2023-08-24 05:19:09,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:09,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:09,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:09,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:09,895 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:09,895 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:09,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-24 05:19:09,895 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:09,896 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:09,896 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:09,897 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-08-24 05:19:09,946 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:09,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 420 places, 364 transitions, 1624 flow [2023-08-24 05:19:10,101 INFO L124 PetriNetUnfolderBase]: 29/698 cut-off events. [2023-08-24 05:19:10,101 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-24 05:19:10,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 698 events. 29/698 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1463 event pairs, 0 based on Foata normal form. 0/612 useless extension candidates. Maximal degree in co-relation 1121. Up to 58 conditions per place. [2023-08-24 05:19:10,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 420 places, 364 transitions, 1624 flow [2023-08-24 05:19:10,118 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 415 places, 358 transitions, 1612 flow [2023-08-24 05:19:10,118 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:10,118 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 415 places, 358 transitions, 1612 flow [2023-08-24 05:19:10,119 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 415 places, 358 transitions, 1612 flow [2023-08-24 05:19:10,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 415 places, 358 transitions, 1612 flow [2023-08-24 05:19:10,235 INFO L124 PetriNetUnfolderBase]: 0/524 cut-off events. [2023-08-24 05:19:10,235 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-24 05:19:10,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 524 events. 0/524 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 788 event pairs, 0 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2023-08-24 05:19:10,267 INFO L119 LiptonReduction]: Number of co-enabled transitions 104104 [2023-08-24 05:19:14,278 INFO L134 LiptonReduction]: Checked pairs total: 170283 [2023-08-24 05:19:14,278 INFO L136 LiptonReduction]: Total number of compositions: 245 [2023-08-24 05:19:14,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:14,279 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:14,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:14,304 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:14,305 INFO L124 PetriNetUnfolderBase]: 0/169 cut-off events. [2023-08-24 05:19:14,305 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-24 05:19:14,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:14,305 INFO L208 CegarLoopForPetriNet]: trace histogram [28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:14,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:14,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:14,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1304875198, now seen corresponding path program 1 times [2023-08-24 05:19:14,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:14,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143919174] [2023-08-24 05:19:14,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:14,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:14,339 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:14,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:14,396 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:14,397 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:14,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-24 05:19:14,397 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:14,397 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:14,397 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:14,397 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-08-24 05:19:14,447 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:14,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 434 places, 376 transitions, 1709 flow [2023-08-24 05:19:14,660 INFO L124 PetriNetUnfolderBase]: 30/722 cut-off events. [2023-08-24 05:19:14,661 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-24 05:19:14,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 722 events. 30/722 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1508 event pairs, 0 based on Foata normal form. 0/633 useless extension candidates. Maximal degree in co-relation 1176. Up to 60 conditions per place. [2023-08-24 05:19:14,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 434 places, 376 transitions, 1709 flow [2023-08-24 05:19:14,679 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 370 transitions, 1697 flow [2023-08-24 05:19:14,679 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:14,679 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 429 places, 370 transitions, 1697 flow [2023-08-24 05:19:14,679 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 429 places, 370 transitions, 1697 flow [2023-08-24 05:19:14,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 370 transitions, 1697 flow [2023-08-24 05:19:14,829 INFO L124 PetriNetUnfolderBase]: 0/542 cut-off events. [2023-08-24 05:19:14,829 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-24 05:19:14,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 542 events. 0/542 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 810 event pairs, 0 based on Foata normal form. 0/513 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2023-08-24 05:19:14,858 INFO L119 LiptonReduction]: Number of co-enabled transitions 111650 [2023-08-24 05:19:19,018 INFO L134 LiptonReduction]: Checked pairs total: 175889 [2023-08-24 05:19:19,019 INFO L136 LiptonReduction]: Total number of compositions: 253 [2023-08-24 05:19:19,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:19,020 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:19,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:19,038 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:19,038 INFO L124 PetriNetUnfolderBase]: 0/175 cut-off events. [2023-08-24 05:19:19,038 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-24 05:19:19,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:19,039 INFO L208 CegarLoopForPetriNet]: trace histogram [29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:19,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:19,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:19,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1674551718, now seen corresponding path program 1 times [2023-08-24 05:19:19,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:19,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425215442] [2023-08-24 05:19:19,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:19,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:19,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:19,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:19,108 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:19,108 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:19,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-24 05:19:19,108 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:19,108 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:19,108 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:19,108 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-08-24 05:19:19,158 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:19,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 448 places, 388 transitions, 1796 flow [2023-08-24 05:19:19,330 INFO L124 PetriNetUnfolderBase]: 31/746 cut-off events. [2023-08-24 05:19:19,330 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-24 05:19:19,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1302 conditions, 746 events. 31/746 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1595 event pairs, 0 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 1232. Up to 62 conditions per place. [2023-08-24 05:19:19,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 448 places, 388 transitions, 1796 flow [2023-08-24 05:19:19,346 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 443 places, 382 transitions, 1784 flow [2023-08-24 05:19:19,346 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:19,346 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 443 places, 382 transitions, 1784 flow [2023-08-24 05:19:19,346 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 443 places, 382 transitions, 1784 flow [2023-08-24 05:19:19,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 443 places, 382 transitions, 1784 flow [2023-08-24 05:19:19,459 INFO L124 PetriNetUnfolderBase]: 0/560 cut-off events. [2023-08-24 05:19:19,460 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-24 05:19:19,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 560 events. 0/560 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 858 event pairs, 0 based on Foata normal form. 0/530 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2023-08-24 05:19:19,486 INFO L119 LiptonReduction]: Number of co-enabled transitions 119460 [2023-08-24 05:19:23,817 INFO L134 LiptonReduction]: Checked pairs total: 213210 [2023-08-24 05:19:23,818 INFO L136 LiptonReduction]: Total number of compositions: 261 [2023-08-24 05:19:23,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:23,819 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:23,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:23,840 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:23,840 INFO L124 PetriNetUnfolderBase]: 0/181 cut-off events. [2023-08-24 05:19:23,840 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-24 05:19:23,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:23,841 INFO L208 CegarLoopForPetriNet]: trace histogram [30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:23,841 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:23,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:23,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1787054353, now seen corresponding path program 1 times [2023-08-24 05:19:23,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:23,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819633298] [2023-08-24 05:19:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:23,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:23,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:23,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:23,910 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:23,910 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:23,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-24 05:19:23,910 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:23,911 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:23,911 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:23,911 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-08-24 05:19:23,970 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:23,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 462 places, 400 transitions, 1885 flow [2023-08-24 05:19:24,161 INFO L124 PetriNetUnfolderBase]: 32/770 cut-off events. [2023-08-24 05:19:24,162 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-24 05:19:24,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1360 conditions, 770 events. 32/770 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1638 event pairs, 0 based on Foata normal form. 0/675 useless extension candidates. Maximal degree in co-relation 1289. Up to 64 conditions per place. [2023-08-24 05:19:24,181 INFO L82 GeneralOperation]: Start removeDead. Operand has 462 places, 400 transitions, 1885 flow [2023-08-24 05:19:24,184 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 457 places, 394 transitions, 1873 flow [2023-08-24 05:19:24,185 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:24,185 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 457 places, 394 transitions, 1873 flow [2023-08-24 05:19:24,185 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 457 places, 394 transitions, 1873 flow [2023-08-24 05:19:24,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 457 places, 394 transitions, 1873 flow [2023-08-24 05:19:24,384 INFO L124 PetriNetUnfolderBase]: 0/578 cut-off events. [2023-08-24 05:19:24,384 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-24 05:19:24,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 578 events. 0/578 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 885 event pairs, 0 based on Foata normal form. 0/547 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2023-08-24 05:19:24,410 INFO L119 LiptonReduction]: Number of co-enabled transitions 127534 [2023-08-24 05:19:28,737 INFO L134 LiptonReduction]: Checked pairs total: 226761 [2023-08-24 05:19:28,737 INFO L136 LiptonReduction]: Total number of compositions: 269 [2023-08-24 05:19:28,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:28,738 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:28,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:28,759 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:28,759 INFO L124 PetriNetUnfolderBase]: 0/187 cut-off events. [2023-08-24 05:19:28,759 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-24 05:19:28,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:28,759 INFO L208 CegarLoopForPetriNet]: trace histogram [31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:28,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:28,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:28,760 INFO L85 PathProgramCache]: Analyzing trace with hash 361444897, now seen corresponding path program 1 times [2023-08-24 05:19:28,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:28,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472481614] [2023-08-24 05:19:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:28,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:28,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:28,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:28,842 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:28,842 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:28,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-24 05:19:28,843 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:28,843 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:28,843 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:28,843 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-08-24 05:19:28,957 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:28,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 476 places, 412 transitions, 1976 flow [2023-08-24 05:19:29,217 INFO L124 PetriNetUnfolderBase]: 33/794 cut-off events. [2023-08-24 05:19:29,218 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-24 05:19:29,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1419 conditions, 794 events. 33/794 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1707 event pairs, 0 based on Foata normal form. 0/696 useless extension candidates. Maximal degree in co-relation 1347. Up to 66 conditions per place. [2023-08-24 05:19:29,238 INFO L82 GeneralOperation]: Start removeDead. Operand has 476 places, 412 transitions, 1976 flow [2023-08-24 05:19:29,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 471 places, 406 transitions, 1964 flow [2023-08-24 05:19:29,241 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:29,241 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 471 places, 406 transitions, 1964 flow [2023-08-24 05:19:29,241 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 471 places, 406 transitions, 1964 flow [2023-08-24 05:19:29,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 471 places, 406 transitions, 1964 flow [2023-08-24 05:19:29,382 INFO L124 PetriNetUnfolderBase]: 0/596 cut-off events. [2023-08-24 05:19:29,382 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-24 05:19:29,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1221 conditions, 596 events. 0/596 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 928 event pairs, 0 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 0. Up to 33 conditions per place. [2023-08-24 05:19:29,412 INFO L119 LiptonReduction]: Number of co-enabled transitions 135872 [2023-08-24 05:19:33,880 INFO L134 LiptonReduction]: Checked pairs total: 217691 [2023-08-24 05:19:33,881 INFO L136 LiptonReduction]: Total number of compositions: 277 [2023-08-24 05:19:33,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:33,882 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:33,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:33,911 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:33,911 INFO L124 PetriNetUnfolderBase]: 0/193 cut-off events. [2023-08-24 05:19:33,912 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-24 05:19:33,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:33,912 INFO L208 CegarLoopForPetriNet]: trace histogram [32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:33,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:33,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:33,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1043421476, now seen corresponding path program 1 times [2023-08-24 05:19:33,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:33,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775352866] [2023-08-24 05:19:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:33,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:33,950 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:33,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:33,993 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:33,993 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:33,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-24 05:19:33,994 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:33,994 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:33,994 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:33,994 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-08-24 05:19:34,051 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:34,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 490 places, 424 transitions, 2069 flow [2023-08-24 05:19:34,214 INFO L124 PetriNetUnfolderBase]: 34/818 cut-off events. [2023-08-24 05:19:34,214 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-24 05:19:34,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1479 conditions, 818 events. 34/818 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1791 event pairs, 0 based on Foata normal form. 0/717 useless extension candidates. Maximal degree in co-relation 1406. Up to 68 conditions per place. [2023-08-24 05:19:34,233 INFO L82 GeneralOperation]: Start removeDead. Operand has 490 places, 424 transitions, 2069 flow [2023-08-24 05:19:34,236 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 485 places, 418 transitions, 2057 flow [2023-08-24 05:19:34,236 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:34,236 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 485 places, 418 transitions, 2057 flow [2023-08-24 05:19:34,236 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 485 places, 418 transitions, 2057 flow [2023-08-24 05:19:34,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 485 places, 418 transitions, 2057 flow [2023-08-24 05:19:34,357 INFO L124 PetriNetUnfolderBase]: 0/614 cut-off events. [2023-08-24 05:19:34,357 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-24 05:19:34,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 614 events. 0/614 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 932 event pairs, 0 based on Foata normal form. 0/581 useless extension candidates. Maximal degree in co-relation 0. Up to 34 conditions per place. [2023-08-24 05:19:34,389 INFO L119 LiptonReduction]: Number of co-enabled transitions 144474 [2023-08-24 05:19:39,046 INFO L134 LiptonReduction]: Checked pairs total: 228665 [2023-08-24 05:19:39,047 INFO L136 LiptonReduction]: Total number of compositions: 285 [2023-08-24 05:19:39,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:39,048 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:39,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:39,082 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:39,083 INFO L124 PetriNetUnfolderBase]: 0/199 cut-off events. [2023-08-24 05:19:39,083 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-24 05:19:39,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:39,083 INFO L208 CegarLoopForPetriNet]: trace histogram [33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:39,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:39,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:39,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1615871287, now seen corresponding path program 1 times [2023-08-24 05:19:39,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:39,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828393162] [2023-08-24 05:19:39,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:39,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:39,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:39,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:39,158 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:39,158 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:39,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-24 05:19:39,159 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:39,159 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:39,159 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:39,159 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2023-08-24 05:19:39,216 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:39,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 504 places, 436 transitions, 2164 flow [2023-08-24 05:19:39,449 INFO L124 PetriNetUnfolderBase]: 35/842 cut-off events. [2023-08-24 05:19:39,449 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-24 05:19:39,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1540 conditions, 842 events. 35/842 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1828 event pairs, 0 based on Foata normal form. 0/738 useless extension candidates. Maximal degree in co-relation 1466. Up to 70 conditions per place. [2023-08-24 05:19:39,473 INFO L82 GeneralOperation]: Start removeDead. Operand has 504 places, 436 transitions, 2164 flow [2023-08-24 05:19:39,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 499 places, 430 transitions, 2152 flow [2023-08-24 05:19:39,476 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:39,476 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 499 places, 430 transitions, 2152 flow [2023-08-24 05:19:39,476 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 499 places, 430 transitions, 2152 flow [2023-08-24 05:19:39,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 499 places, 430 transitions, 2152 flow [2023-08-24 05:19:39,642 INFO L124 PetriNetUnfolderBase]: 0/632 cut-off events. [2023-08-24 05:19:39,643 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-24 05:19:39,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1330 conditions, 632 events. 0/632 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 996 event pairs, 0 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2023-08-24 05:19:39,677 INFO L119 LiptonReduction]: Number of co-enabled transitions 153340 [2023-08-24 05:19:44,445 INFO L134 LiptonReduction]: Checked pairs total: 279330 [2023-08-24 05:19:44,445 INFO L136 LiptonReduction]: Total number of compositions: 293 [2023-08-24 05:19:44,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:44,446 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:44,446 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:44,483 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:44,484 INFO L124 PetriNetUnfolderBase]: 0/205 cut-off events. [2023-08-24 05:19:44,484 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-24 05:19:44,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:44,485 INFO L208 CegarLoopForPetriNet]: trace histogram [34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:44,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:44,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:44,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1330958263, now seen corresponding path program 1 times [2023-08-24 05:19:44,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:44,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446248027] [2023-08-24 05:19:44,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:44,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:44,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:44,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:44,557 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:44,558 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:44,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-24 05:19:44,558 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:44,558 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:44,558 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:44,558 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2023-08-24 05:19:44,617 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:44,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 518 places, 448 transitions, 2261 flow [2023-08-24 05:19:44,876 INFO L124 PetriNetUnfolderBase]: 36/866 cut-off events. [2023-08-24 05:19:44,876 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-24 05:19:44,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 866 events. 36/866 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1863 event pairs, 0 based on Foata normal form. 0/759 useless extension candidates. Maximal degree in co-relation 1527. Up to 72 conditions per place. [2023-08-24 05:19:44,890 INFO L82 GeneralOperation]: Start removeDead. Operand has 518 places, 448 transitions, 2261 flow [2023-08-24 05:19:44,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 513 places, 442 transitions, 2249 flow [2023-08-24 05:19:44,892 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:44,892 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 513 places, 442 transitions, 2249 flow [2023-08-24 05:19:44,893 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 513 places, 442 transitions, 2249 flow [2023-08-24 05:19:44,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 513 places, 442 transitions, 2249 flow [2023-08-24 05:19:45,018 INFO L124 PetriNetUnfolderBase]: 0/650 cut-off events. [2023-08-24 05:19:45,018 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-24 05:19:45,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 650 events. 0/650 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1007 event pairs, 0 based on Foata normal form. 0/615 useless extension candidates. Maximal degree in co-relation 0. Up to 36 conditions per place. [2023-08-24 05:19:45,055 INFO L119 LiptonReduction]: Number of co-enabled transitions 162470 [2023-08-24 05:19:50,125 INFO L134 LiptonReduction]: Checked pairs total: 281150 [2023-08-24 05:19:50,125 INFO L136 LiptonReduction]: Total number of compositions: 301 [2023-08-24 05:19:50,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:50,126 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:50,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:50,152 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:50,153 INFO L124 PetriNetUnfolderBase]: 0/211 cut-off events. [2023-08-24 05:19:50,153 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-24 05:19:50,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:50,153 INFO L208 CegarLoopForPetriNet]: trace histogram [35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:50,153 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:50,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2139566080, now seen corresponding path program 1 times [2023-08-24 05:19:50,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:50,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465933295] [2023-08-24 05:19:50,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:50,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:50,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:50,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:50,249 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:50,249 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:50,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-24 05:19:50,250 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:50,250 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:50,250 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:50,250 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2023-08-24 05:19:50,315 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:50,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 532 places, 460 transitions, 2360 flow [2023-08-24 05:19:50,538 INFO L124 PetriNetUnfolderBase]: 37/890 cut-off events. [2023-08-24 05:19:50,538 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-24 05:19:50,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1665 conditions, 890 events. 37/890 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1934 event pairs, 0 based on Foata normal form. 0/780 useless extension candidates. Maximal degree in co-relation 1589. Up to 74 conditions per place. [2023-08-24 05:19:50,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 532 places, 460 transitions, 2360 flow [2023-08-24 05:19:50,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 527 places, 454 transitions, 2348 flow [2023-08-24 05:19:50,560 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:50,560 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 527 places, 454 transitions, 2348 flow [2023-08-24 05:19:50,560 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 527 places, 454 transitions, 2348 flow [2023-08-24 05:19:50,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 527 places, 454 transitions, 2348 flow [2023-08-24 05:19:50,701 INFO L124 PetriNetUnfolderBase]: 0/668 cut-off events. [2023-08-24 05:19:50,701 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-24 05:19:50,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1443 conditions, 668 events. 0/668 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1055 event pairs, 0 based on Foata normal form. 0/632 useless extension candidates. Maximal degree in co-relation 0. Up to 37 conditions per place. [2023-08-24 05:19:50,743 INFO L119 LiptonReduction]: Number of co-enabled transitions 171864 [2023-08-24 05:19:55,864 INFO L134 LiptonReduction]: Checked pairs total: 289479 [2023-08-24 05:19:55,864 INFO L136 LiptonReduction]: Total number of compositions: 309 [2023-08-24 05:19:55,865 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:19:55,865 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:19:55,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:19:55,892 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:19:55,892 INFO L124 PetriNetUnfolderBase]: 0/217 cut-off events. [2023-08-24 05:19:55,893 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2023-08-24 05:19:55,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:19:55,893 INFO L208 CegarLoopForPetriNet]: trace histogram [36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:19:55,893 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:19:55,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:19:55,893 INFO L85 PathProgramCache]: Analyzing trace with hash -495253770, now seen corresponding path program 1 times [2023-08-24 05:19:55,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:19:55,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838076351] [2023-08-24 05:19:55,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:19:55,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:19:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:55,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:19:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:19:55,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:19:55,988 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:19:55,988 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:19:55,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-24 05:19:55,989 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:19:55,989 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:19:55,989 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:19:55,989 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2023-08-24 05:19:56,052 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:19:56,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 546 places, 472 transitions, 2461 flow [2023-08-24 05:19:56,288 INFO L124 PetriNetUnfolderBase]: 38/914 cut-off events. [2023-08-24 05:19:56,288 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-24 05:19:56,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 914 events. 38/914 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1950 event pairs, 0 based on Foata normal form. 0/801 useless extension candidates. Maximal degree in co-relation 1652. Up to 76 conditions per place. [2023-08-24 05:19:56,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 546 places, 472 transitions, 2461 flow [2023-08-24 05:19:56,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 541 places, 466 transitions, 2449 flow [2023-08-24 05:19:56,310 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:19:56,310 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 541 places, 466 transitions, 2449 flow [2023-08-24 05:19:56,310 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 541 places, 466 transitions, 2449 flow [2023-08-24 05:19:56,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 541 places, 466 transitions, 2449 flow [2023-08-24 05:19:56,455 INFO L124 PetriNetUnfolderBase]: 0/686 cut-off events. [2023-08-24 05:19:56,455 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-24 05:19:56,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 686 events. 0/686 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1051 event pairs, 0 based on Foata normal form. 0/649 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2023-08-24 05:19:56,499 INFO L119 LiptonReduction]: Number of co-enabled transitions 181522 [2023-08-24 05:20:01,611 INFO L134 LiptonReduction]: Checked pairs total: 322285 [2023-08-24 05:20:01,611 INFO L136 LiptonReduction]: Total number of compositions: 317 [2023-08-24 05:20:01,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:20:01,612 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:20:01,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:20:01,641 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:20:01,641 INFO L124 PetriNetUnfolderBase]: 0/223 cut-off events. [2023-08-24 05:20:01,641 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2023-08-24 05:20:01,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:20:01,641 INFO L208 CegarLoopForPetriNet]: trace histogram [37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:20:01,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:20:01,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:20:01,642 INFO L85 PathProgramCache]: Analyzing trace with hash 790961803, now seen corresponding path program 1 times [2023-08-24 05:20:01,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:20:01,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312289207] [2023-08-24 05:20:01,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:20:01,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:20:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:01,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:20:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:01,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:20:01,730 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:20:01,730 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:20:01,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-24 05:20:01,730 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:20:01,730 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:20:01,730 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:20:01,731 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2023-08-24 05:20:01,796 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:20:01,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 560 places, 484 transitions, 2564 flow [2023-08-24 05:20:02,005 INFO L124 PetriNetUnfolderBase]: 39/938 cut-off events. [2023-08-24 05:20:02,006 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-24 05:20:02,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1794 conditions, 938 events. 39/938 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1997 event pairs, 0 based on Foata normal form. 0/822 useless extension candidates. Maximal degree in co-relation 1716. Up to 78 conditions per place. [2023-08-24 05:20:02,026 INFO L82 GeneralOperation]: Start removeDead. Operand has 560 places, 484 transitions, 2564 flow [2023-08-24 05:20:02,029 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 555 places, 478 transitions, 2552 flow [2023-08-24 05:20:02,029 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:20:02,029 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 555 places, 478 transitions, 2552 flow [2023-08-24 05:20:02,029 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 555 places, 478 transitions, 2552 flow [2023-08-24 05:20:02,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 555 places, 478 transitions, 2552 flow [2023-08-24 05:20:02,225 INFO L124 PetriNetUnfolderBase]: 0/704 cut-off events. [2023-08-24 05:20:02,225 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-24 05:20:02,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 704 events. 0/704 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1080 event pairs, 0 based on Foata normal form. 0/666 useless extension candidates. Maximal degree in co-relation 0. Up to 39 conditions per place. [2023-08-24 05:20:02,267 INFO L119 LiptonReduction]: Number of co-enabled transitions 191444 [2023-08-24 05:20:07,569 INFO L134 LiptonReduction]: Checked pairs total: 304421 [2023-08-24 05:20:07,569 INFO L136 LiptonReduction]: Total number of compositions: 325 [2023-08-24 05:20:07,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:20:07,570 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:20:07,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:20:07,606 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:20:07,606 INFO L124 PetriNetUnfolderBase]: 0/229 cut-off events. [2023-08-24 05:20:07,606 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2023-08-24 05:20:07,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:20:07,607 INFO L208 CegarLoopForPetriNet]: trace histogram [38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:20:07,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:20:07,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:20:07,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1489626333, now seen corresponding path program 1 times [2023-08-24 05:20:07,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:20:07,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306516125] [2023-08-24 05:20:07,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:20:07,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:20:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:07,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:20:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:07,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:20:07,692 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:20:07,692 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:20:07,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-24 05:20:07,693 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:20:07,693 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:20:07,693 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:20:07,693 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2023-08-24 05:20:07,757 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:20:07,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 574 places, 496 transitions, 2669 flow [2023-08-24 05:20:08,002 INFO L124 PetriNetUnfolderBase]: 40/962 cut-off events. [2023-08-24 05:20:08,003 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-24 05:20:08,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1860 conditions, 962 events. 40/962 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2065 event pairs, 0 based on Foata normal form. 0/843 useless extension candidates. Maximal degree in co-relation 1781. Up to 80 conditions per place. [2023-08-24 05:20:08,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 574 places, 496 transitions, 2669 flow [2023-08-24 05:20:08,026 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 569 places, 490 transitions, 2657 flow [2023-08-24 05:20:08,026 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:20:08,026 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 569 places, 490 transitions, 2657 flow [2023-08-24 05:20:08,026 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 569 places, 490 transitions, 2657 flow [2023-08-24 05:20:08,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 569 places, 490 transitions, 2657 flow [2023-08-24 05:20:08,182 INFO L124 PetriNetUnfolderBase]: 0/722 cut-off events. [2023-08-24 05:20:08,182 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-24 05:20:08,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1620 conditions, 722 events. 0/722 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1117 event pairs, 0 based on Foata normal form. 0/683 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2023-08-24 05:20:08,229 INFO L119 LiptonReduction]: Number of co-enabled transitions 201630 [2023-08-24 05:20:13,714 INFO L134 LiptonReduction]: Checked pairs total: 336727 [2023-08-24 05:20:13,715 INFO L136 LiptonReduction]: Total number of compositions: 333 [2023-08-24 05:20:13,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:20:13,716 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:20:13,716 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:20:13,750 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:20:13,750 INFO L124 PetriNetUnfolderBase]: 0/235 cut-off events. [2023-08-24 05:20:13,750 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2023-08-24 05:20:13,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:20:13,750 INFO L208 CegarLoopForPetriNet]: trace histogram [39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:20:13,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:20:13,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:20:13,750 INFO L85 PathProgramCache]: Analyzing trace with hash 30796258, now seen corresponding path program 1 times [2023-08-24 05:20:13,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:20:13,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375273799] [2023-08-24 05:20:13,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:20:13,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:20:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:13,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:20:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:13,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:20:13,842 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:20:13,842 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:20:13,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-24 05:20:13,842 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:20:13,843 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:20:13,843 WARN L233 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:20:13,843 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2023-08-24 05:20:13,910 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:20:13,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 588 places, 508 transitions, 2776 flow [2023-08-24 05:20:14,139 INFO L124 PetriNetUnfolderBase]: 41/986 cut-off events. [2023-08-24 05:20:14,139 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-24 05:20:14,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1927 conditions, 986 events. 41/986 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2125 event pairs, 0 based on Foata normal form. 0/864 useless extension candidates. Maximal degree in co-relation 1847. Up to 82 conditions per place. [2023-08-24 05:20:14,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 588 places, 508 transitions, 2776 flow [2023-08-24 05:20:14,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 583 places, 502 transitions, 2764 flow [2023-08-24 05:20:14,166 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:20:14,166 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 583 places, 502 transitions, 2764 flow [2023-08-24 05:20:14,166 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 583 places, 502 transitions, 2764 flow [2023-08-24 05:20:14,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 583 places, 502 transitions, 2764 flow [2023-08-24 05:20:14,335 INFO L124 PetriNetUnfolderBase]: 0/740 cut-off events. [2023-08-24 05:20:14,335 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-24 05:20:14,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 740 events. 0/740 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1155 event pairs, 0 based on Foata normal form. 0/700 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2023-08-24 05:20:14,386 INFO L119 LiptonReduction]: Number of co-enabled transitions 212080 [2023-08-24 05:20:20,007 INFO L134 LiptonReduction]: Checked pairs total: 349674 [2023-08-24 05:20:20,007 INFO L136 LiptonReduction]: Total number of compositions: 341 [2023-08-24 05:20:20,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:20:20,009 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:20:20,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:20:20,042 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:20:20,043 INFO L124 PetriNetUnfolderBase]: 0/241 cut-off events. [2023-08-24 05:20:20,043 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2023-08-24 05:20:20,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:20:20,043 INFO L208 CegarLoopForPetriNet]: trace histogram [40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:20:20,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:20:20,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:20:20,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1327537936, now seen corresponding path program 1 times [2023-08-24 05:20:20,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:20:20,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085511138] [2023-08-24 05:20:20,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:20:20,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:20:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:20,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:20:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:20,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:20:20,141 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:20:20,141 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:20:20,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-24 05:20:20,142 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:20:20,142 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:20:20,142 WARN L233 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:20:20,142 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2023-08-24 05:20:20,209 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:20:20,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 602 places, 520 transitions, 2885 flow [2023-08-24 05:20:20,460 INFO L124 PetriNetUnfolderBase]: 42/1010 cut-off events. [2023-08-24 05:20:20,460 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-24 05:20:20,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 1010 events. 42/1010 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2184 event pairs, 0 based on Foata normal form. 0/885 useless extension candidates. Maximal degree in co-relation 1914. Up to 84 conditions per place. [2023-08-24 05:20:20,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 602 places, 520 transitions, 2885 flow [2023-08-24 05:20:20,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 514 transitions, 2873 flow [2023-08-24 05:20:20,489 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:20:20,489 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 597 places, 514 transitions, 2873 flow [2023-08-24 05:20:20,489 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 597 places, 514 transitions, 2873 flow [2023-08-24 05:20:20,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 514 transitions, 2873 flow [2023-08-24 05:20:20,710 INFO L124 PetriNetUnfolderBase]: 0/758 cut-off events. [2023-08-24 05:20:20,710 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-24 05:20:20,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1743 conditions, 758 events. 0/758 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1180 event pairs, 0 based on Foata normal form. 0/717 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2023-08-24 05:20:20,768 INFO L119 LiptonReduction]: Number of co-enabled transitions 222794 [2023-08-24 05:20:26,616 INFO L134 LiptonReduction]: Checked pairs total: 367956 [2023-08-24 05:20:26,617 INFO L136 LiptonReduction]: Total number of compositions: 349 [2023-08-24 05:20:26,618 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:20:26,618 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:20:26,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:20:26,657 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:20:26,657 INFO L124 PetriNetUnfolderBase]: 0/247 cut-off events. [2023-08-24 05:20:26,657 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2023-08-24 05:20:26,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:20:26,657 INFO L208 CegarLoopForPetriNet]: trace histogram [41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:20:26,657 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:20:26,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:20:26,658 INFO L85 PathProgramCache]: Analyzing trace with hash 409322920, now seen corresponding path program 1 times [2023-08-24 05:20:26,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:20:26,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272760189] [2023-08-24 05:20:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:20:26,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:20:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:26,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:20:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:26,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:20:26,761 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:20:26,761 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:20:26,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-24 05:20:26,761 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:20:26,762 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:20:26,762 WARN L233 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:20:26,762 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2023-08-24 05:20:26,825 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:20:26,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 616 places, 532 transitions, 2996 flow [2023-08-24 05:20:27,082 INFO L124 PetriNetUnfolderBase]: 43/1034 cut-off events. [2023-08-24 05:20:27,082 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-24 05:20:27,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2064 conditions, 1034 events. 43/1034 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2232 event pairs, 0 based on Foata normal form. 0/906 useless extension candidates. Maximal degree in co-relation 1982. Up to 86 conditions per place. [2023-08-24 05:20:27,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 616 places, 532 transitions, 2996 flow [2023-08-24 05:20:27,110 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 526 transitions, 2984 flow [2023-08-24 05:20:27,110 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:20:27,110 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 611 places, 526 transitions, 2984 flow [2023-08-24 05:20:27,110 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 611 places, 526 transitions, 2984 flow [2023-08-24 05:20:27,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 526 transitions, 2984 flow [2023-08-24 05:20:27,293 INFO L124 PetriNetUnfolderBase]: 0/776 cut-off events. [2023-08-24 05:20:27,293 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-24 05:20:27,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1806 conditions, 776 events. 0/776 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1211 event pairs, 0 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2023-08-24 05:20:27,351 INFO L119 LiptonReduction]: Number of co-enabled transitions 233772 [2023-08-24 05:20:33,235 INFO L134 LiptonReduction]: Checked pairs total: 386788 [2023-08-24 05:20:33,235 INFO L136 LiptonReduction]: Total number of compositions: 357 [2023-08-24 05:20:33,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:20:33,236 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:20:33,236 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:20:33,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:20:33,273 INFO L124 PetriNetUnfolderBase]: 0/253 cut-off events. [2023-08-24 05:20:33,273 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2023-08-24 05:20:33,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:20:33,273 INFO L208 CegarLoopForPetriNet]: trace histogram [42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:20:33,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:20:33,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:20:33,273 INFO L85 PathProgramCache]: Analyzing trace with hash -404644739, now seen corresponding path program 1 times [2023-08-24 05:20:33,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:20:33,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911530634] [2023-08-24 05:20:33,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:20:33,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:20:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:33,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:20:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:33,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:20:33,379 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:20:33,380 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:20:33,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-24 05:20:33,380 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:20:33,380 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:20:33,380 WARN L233 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:20:33,380 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2023-08-24 05:20:33,450 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:20:33,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 630 places, 544 transitions, 3109 flow [2023-08-24 05:20:33,733 INFO L124 PetriNetUnfolderBase]: 44/1058 cut-off events. [2023-08-24 05:20:33,733 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-24 05:20:33,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2134 conditions, 1058 events. 44/1058 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2277 event pairs, 0 based on Foata normal form. 0/927 useless extension candidates. Maximal degree in co-relation 2051. Up to 88 conditions per place. [2023-08-24 05:20:33,760 INFO L82 GeneralOperation]: Start removeDead. Operand has 630 places, 544 transitions, 3109 flow [2023-08-24 05:20:33,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 625 places, 538 transitions, 3097 flow [2023-08-24 05:20:33,763 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:20:33,763 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 625 places, 538 transitions, 3097 flow [2023-08-24 05:20:33,763 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 625 places, 538 transitions, 3097 flow [2023-08-24 05:20:33,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 625 places, 538 transitions, 3097 flow [2023-08-24 05:20:34,008 INFO L124 PetriNetUnfolderBase]: 0/794 cut-off events. [2023-08-24 05:20:34,008 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-24 05:20:34,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1870 conditions, 794 events. 0/794 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1232 event pairs, 0 based on Foata normal form. 0/751 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2023-08-24 05:20:34,065 INFO L119 LiptonReduction]: Number of co-enabled transitions 245014 [2023-08-24 05:20:40,097 INFO L134 LiptonReduction]: Checked pairs total: 413996 [2023-08-24 05:20:40,097 INFO L136 LiptonReduction]: Total number of compositions: 365 [2023-08-24 05:20:40,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:20:40,098 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:20:40,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:20:40,138 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:20:40,139 INFO L124 PetriNetUnfolderBase]: 0/259 cut-off events. [2023-08-24 05:20:40,139 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2023-08-24 05:20:40,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:20:40,139 INFO L208 CegarLoopForPetriNet]: trace histogram [43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:20:40,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:20:40,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:20:40,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1875437822, now seen corresponding path program 1 times [2023-08-24 05:20:40,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:20:40,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458123859] [2023-08-24 05:20:40,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:20:40,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:20:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:40,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:20:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:40,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:20:40,245 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:20:40,245 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:20:40,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-24 05:20:40,245 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:20:40,245 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:20:40,245 WARN L233 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:20:40,245 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2023-08-24 05:20:40,318 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:20:40,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 644 places, 556 transitions, 3224 flow [2023-08-24 05:20:40,637 INFO L124 PetriNetUnfolderBase]: 45/1082 cut-off events. [2023-08-24 05:20:40,638 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-24 05:20:40,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2205 conditions, 1082 events. 45/1082 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2334 event pairs, 0 based on Foata normal form. 0/948 useless extension candidates. Maximal degree in co-relation 2121. Up to 90 conditions per place. [2023-08-24 05:20:40,666 INFO L82 GeneralOperation]: Start removeDead. Operand has 644 places, 556 transitions, 3224 flow [2023-08-24 05:20:40,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 639 places, 550 transitions, 3212 flow [2023-08-24 05:20:40,669 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:20:40,669 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 639 places, 550 transitions, 3212 flow [2023-08-24 05:20:40,669 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 639 places, 550 transitions, 3212 flow [2023-08-24 05:20:40,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 639 places, 550 transitions, 3212 flow [2023-08-24 05:20:40,873 INFO L124 PetriNetUnfolderBase]: 0/812 cut-off events. [2023-08-24 05:20:40,873 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-24 05:20:40,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1935 conditions, 812 events. 0/812 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1266 event pairs, 0 based on Foata normal form. 0/768 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2023-08-24 05:20:40,938 INFO L119 LiptonReduction]: Number of co-enabled transitions 256520 [2023-08-24 05:20:47,108 INFO L134 LiptonReduction]: Checked pairs total: 422510 [2023-08-24 05:20:47,108 INFO L136 LiptonReduction]: Total number of compositions: 373 [2023-08-24 05:20:47,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:20:47,109 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:20:47,109 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:20:47,151 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:20:47,151 INFO L124 PetriNetUnfolderBase]: 0/265 cut-off events. [2023-08-24 05:20:47,151 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2023-08-24 05:20:47,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:20:47,152 INFO L208 CegarLoopForPetriNet]: trace histogram [44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:20:47,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:20:47,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:20:47,152 INFO L85 PathProgramCache]: Analyzing trace with hash -545645078, now seen corresponding path program 1 times [2023-08-24 05:20:47,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:20:47,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205015893] [2023-08-24 05:20:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:20:47,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:20:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:47,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:20:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:47,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:20:47,267 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:20:47,267 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:20:47,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-24 05:20:47,267 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:20:47,267 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:20:47,267 WARN L233 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:20:47,267 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2023-08-24 05:20:47,368 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:20:47,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 658 places, 568 transitions, 3341 flow [2023-08-24 05:20:47,744 INFO L124 PetriNetUnfolderBase]: 46/1106 cut-off events. [2023-08-24 05:20:47,744 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-24 05:20:47,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2277 conditions, 1106 events. 46/1106 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2389 event pairs, 0 based on Foata normal form. 0/969 useless extension candidates. Maximal degree in co-relation 2192. Up to 92 conditions per place. [2023-08-24 05:20:47,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 658 places, 568 transitions, 3341 flow [2023-08-24 05:20:47,772 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 653 places, 562 transitions, 3329 flow [2023-08-24 05:20:47,772 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:20:47,772 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 653 places, 562 transitions, 3329 flow [2023-08-24 05:20:47,772 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 653 places, 562 transitions, 3329 flow [2023-08-24 05:20:47,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 653 places, 562 transitions, 3329 flow [2023-08-24 05:20:47,985 INFO L124 PetriNetUnfolderBase]: 0/830 cut-off events. [2023-08-24 05:20:47,985 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-24 05:20:47,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2001 conditions, 830 events. 0/830 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1298 event pairs, 0 based on Foata normal form. 0/785 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2023-08-24 05:20:48,052 INFO L119 LiptonReduction]: Number of co-enabled transitions 268290 [2023-08-24 05:20:54,467 INFO L134 LiptonReduction]: Checked pairs total: 463351 [2023-08-24 05:20:54,467 INFO L136 LiptonReduction]: Total number of compositions: 381 [2023-08-24 05:20:54,468 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:20:54,468 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:20:54,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:20:54,511 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:20:54,511 INFO L124 PetriNetUnfolderBase]: 0/271 cut-off events. [2023-08-24 05:20:54,511 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2023-08-24 05:20:54,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:20:54,512 INFO L208 CegarLoopForPetriNet]: trace histogram [45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:20:54,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:20:54,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:20:54,512 INFO L85 PathProgramCache]: Analyzing trace with hash -259461776, now seen corresponding path program 1 times [2023-08-24 05:20:54,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:20:54,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212352194] [2023-08-24 05:20:54,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:20:54,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:20:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:54,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:20:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:20:54,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:20:54,620 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:20:54,620 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:20:54,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-24 05:20:54,620 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:20:54,621 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:20:54,621 WARN L233 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:20:54,621 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2023-08-24 05:20:54,696 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:20:54,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 672 places, 580 transitions, 3460 flow [2023-08-24 05:20:55,021 INFO L124 PetriNetUnfolderBase]: 47/1130 cut-off events. [2023-08-24 05:20:55,021 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-24 05:20:55,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2350 conditions, 1130 events. 47/1130 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2505 event pairs, 0 based on Foata normal form. 0/990 useless extension candidates. Maximal degree in co-relation 2264. Up to 94 conditions per place. [2023-08-24 05:20:55,053 INFO L82 GeneralOperation]: Start removeDead. Operand has 672 places, 580 transitions, 3460 flow [2023-08-24 05:20:55,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 667 places, 574 transitions, 3448 flow [2023-08-24 05:20:55,056 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:20:55,056 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 667 places, 574 transitions, 3448 flow [2023-08-24 05:20:55,056 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 667 places, 574 transitions, 3448 flow [2023-08-24 05:20:55,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 667 places, 574 transitions, 3448 flow [2023-08-24 05:20:55,284 INFO L124 PetriNetUnfolderBase]: 0/848 cut-off events. [2023-08-24 05:20:55,285 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-24 05:20:55,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2068 conditions, 848 events. 0/848 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1305 event pairs, 0 based on Foata normal form. 0/802 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2023-08-24 05:20:55,457 INFO L119 LiptonReduction]: Number of co-enabled transitions 280324 [2023-08-24 05:21:01,865 INFO L134 LiptonReduction]: Checked pairs total: 450057 [2023-08-24 05:21:01,865 INFO L136 LiptonReduction]: Total number of compositions: 389 [2023-08-24 05:21:01,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:21:01,866 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:21:01,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:21:01,911 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:21:01,911 INFO L124 PetriNetUnfolderBase]: 0/277 cut-off events. [2023-08-24 05:21:01,911 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2023-08-24 05:21:01,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:21:01,911 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:21:01,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:21:01,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:21:01,911 INFO L85 PathProgramCache]: Analyzing trace with hash -813325929, now seen corresponding path program 1 times [2023-08-24 05:21:01,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:21:01,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385341701] [2023-08-24 05:21:01,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:21:01,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:21:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:01,960 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:21:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:02,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:21:02,030 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:21:02,030 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:21:02,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-24 05:21:02,030 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:21:02,030 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:21:02,030 WARN L233 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:21:02,030 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2023-08-24 05:21:02,111 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:21:02,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 686 places, 592 transitions, 3581 flow [2023-08-24 05:21:02,602 INFO L124 PetriNetUnfolderBase]: 48/1154 cut-off events. [2023-08-24 05:21:02,602 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-24 05:21:02,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2424 conditions, 1154 events. 48/1154 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2522 event pairs, 0 based on Foata normal form. 0/1011 useless extension candidates. Maximal degree in co-relation 2337. Up to 96 conditions per place. [2023-08-24 05:21:02,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 686 places, 592 transitions, 3581 flow [2023-08-24 05:21:02,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 681 places, 586 transitions, 3569 flow [2023-08-24 05:21:02,635 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:21:02,635 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 681 places, 586 transitions, 3569 flow [2023-08-24 05:21:02,636 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 681 places, 586 transitions, 3569 flow [2023-08-24 05:21:02,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 681 places, 586 transitions, 3569 flow [2023-08-24 05:21:02,879 INFO L124 PetriNetUnfolderBase]: 0/866 cut-off events. [2023-08-24 05:21:02,880 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-24 05:21:02,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2136 conditions, 866 events. 0/866 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1378 event pairs, 0 based on Foata normal form. 0/819 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2023-08-24 05:21:02,953 INFO L119 LiptonReduction]: Number of co-enabled transitions 292622 [2023-08-24 05:21:09,417 INFO L134 LiptonReduction]: Checked pairs total: 511321 [2023-08-24 05:21:09,417 INFO L136 LiptonReduction]: Total number of compositions: 397 [2023-08-24 05:21:09,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:21:09,418 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:21:09,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:21:09,465 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:21:09,465 INFO L124 PetriNetUnfolderBase]: 0/283 cut-off events. [2023-08-24 05:21:09,465 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2023-08-24 05:21:09,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:21:09,465 INFO L208 CegarLoopForPetriNet]: trace histogram [47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:21:09,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:21:09,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:21:09,466 INFO L85 PathProgramCache]: Analyzing trace with hash 214140957, now seen corresponding path program 1 times [2023-08-24 05:21:09,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:21:09,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523718473] [2023-08-24 05:21:09,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:21:09,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:21:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:09,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:21:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:09,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:21:09,583 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:21:09,583 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:21:09,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-24 05:21:09,583 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:21:09,583 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:21:09,584 WARN L233 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:21:09,584 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2023-08-24 05:21:09,662 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:21:09,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 700 places, 604 transitions, 3704 flow [2023-08-24 05:21:10,020 INFO L124 PetriNetUnfolderBase]: 49/1178 cut-off events. [2023-08-24 05:21:10,020 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2023-08-24 05:21:10,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2499 conditions, 1178 events. 49/1178 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2529 event pairs, 0 based on Foata normal form. 0/1032 useless extension candidates. Maximal degree in co-relation 2411. Up to 98 conditions per place. [2023-08-24 05:21:10,056 INFO L82 GeneralOperation]: Start removeDead. Operand has 700 places, 604 transitions, 3704 flow [2023-08-24 05:21:10,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 695 places, 598 transitions, 3692 flow [2023-08-24 05:21:10,059 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:21:10,059 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 695 places, 598 transitions, 3692 flow [2023-08-24 05:21:10,059 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 695 places, 598 transitions, 3692 flow [2023-08-24 05:21:10,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 695 places, 598 transitions, 3692 flow [2023-08-24 05:21:10,314 INFO L124 PetriNetUnfolderBase]: 0/884 cut-off events. [2023-08-24 05:21:10,314 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2023-08-24 05:21:10,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2205 conditions, 884 events. 0/884 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1373 event pairs, 0 based on Foata normal form. 0/836 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2023-08-24 05:21:10,483 INFO L119 LiptonReduction]: Number of co-enabled transitions 305184 [2023-08-24 05:21:17,016 INFO L134 LiptonReduction]: Checked pairs total: 535803 [2023-08-24 05:21:17,016 INFO L136 LiptonReduction]: Total number of compositions: 405 [2023-08-24 05:21:17,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:21:17,017 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:21:17,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:21:17,070 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:21:17,070 INFO L124 PetriNetUnfolderBase]: 0/289 cut-off events. [2023-08-24 05:21:17,070 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2023-08-24 05:21:17,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:21:17,070 INFO L208 CegarLoopForPetriNet]: trace histogram [48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:21:17,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:21:17,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:21:17,071 INFO L85 PathProgramCache]: Analyzing trace with hash -2044518844, now seen corresponding path program 1 times [2023-08-24 05:21:17,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:21:17,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034202059] [2023-08-24 05:21:17,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:21:17,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:21:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:17,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:21:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:17,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:21:17,193 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:21:17,193 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:21:17,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-24 05:21:17,193 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:21:17,194 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:21:17,194 WARN L233 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:21:17,194 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2023-08-24 05:21:17,274 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:21:17,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 714 places, 616 transitions, 3829 flow [2023-08-24 05:21:17,733 INFO L124 PetriNetUnfolderBase]: 50/1202 cut-off events. [2023-08-24 05:21:17,733 INFO L125 PetriNetUnfolderBase]: For 20776/20776 co-relation queries the response was YES. [2023-08-24 05:21:17,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2575 conditions, 1202 events. 50/1202 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2584 event pairs, 0 based on Foata normal form. 0/1053 useless extension candidates. Maximal degree in co-relation 2486. Up to 100 conditions per place. [2023-08-24 05:21:17,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 714 places, 616 transitions, 3829 flow [2023-08-24 05:21:17,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 709 places, 610 transitions, 3817 flow [2023-08-24 05:21:17,770 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:21:17,771 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 709 places, 610 transitions, 3817 flow [2023-08-24 05:21:17,771 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 709 places, 610 transitions, 3817 flow [2023-08-24 05:21:17,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 709 places, 610 transitions, 3817 flow [2023-08-24 05:21:18,049 INFO L124 PetriNetUnfolderBase]: 0/902 cut-off events. [2023-08-24 05:21:18,049 INFO L125 PetriNetUnfolderBase]: For 20776/20776 co-relation queries the response was YES. [2023-08-24 05:21:18,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2275 conditions, 902 events. 0/902 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1400 event pairs, 0 based on Foata normal form. 0/853 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2023-08-24 05:21:18,131 INFO L119 LiptonReduction]: Number of co-enabled transitions 318010 [2023-08-24 05:21:24,769 INFO L134 LiptonReduction]: Checked pairs total: 553451 [2023-08-24 05:21:24,770 INFO L136 LiptonReduction]: Total number of compositions: 413 [2023-08-24 05:21:24,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:21:24,771 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:21:24,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:21:24,823 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:21:24,823 INFO L124 PetriNetUnfolderBase]: 0/295 cut-off events. [2023-08-24 05:21:24,823 INFO L125 PetriNetUnfolderBase]: For 20776/20776 co-relation queries the response was YES. [2023-08-24 05:21:24,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:21:24,823 INFO L208 CegarLoopForPetriNet]: trace histogram [49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:21:24,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:21:24,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:21:24,823 INFO L85 PathProgramCache]: Analyzing trace with hash 2075815047, now seen corresponding path program 1 times [2023-08-24 05:21:24,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:21:24,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038497685] [2023-08-24 05:21:24,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:21:24,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:21:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:24,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:21:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:24,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:21:24,942 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:21:24,942 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:21:24,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-24 05:21:24,942 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:21:24,942 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:21:24,943 WARN L233 ceAbstractionStarter]: 49 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:21:24,943 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 50 thread instances. [2023-08-24 05:21:25,016 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:21:25,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 728 places, 628 transitions, 3956 flow [2023-08-24 05:21:25,382 INFO L124 PetriNetUnfolderBase]: 51/1226 cut-off events. [2023-08-24 05:21:25,383 INFO L125 PetriNetUnfolderBase]: For 22050/22050 co-relation queries the response was YES. [2023-08-24 05:21:25,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2652 conditions, 1226 events. 51/1226 cut-off events. For 22050/22050 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2649 event pairs, 0 based on Foata normal form. 0/1074 useless extension candidates. Maximal degree in co-relation 2562. Up to 102 conditions per place. [2023-08-24 05:21:25,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 728 places, 628 transitions, 3956 flow [2023-08-24 05:21:25,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 723 places, 622 transitions, 3944 flow [2023-08-24 05:21:25,427 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:21:25,427 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 723 places, 622 transitions, 3944 flow [2023-08-24 05:21:25,427 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 723 places, 622 transitions, 3944 flow [2023-08-24 05:21:25,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 723 places, 622 transitions, 3944 flow [2023-08-24 05:21:25,732 INFO L124 PetriNetUnfolderBase]: 0/920 cut-off events. [2023-08-24 05:21:25,732 INFO L125 PetriNetUnfolderBase]: For 22050/22050 co-relation queries the response was YES. [2023-08-24 05:21:25,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2346 conditions, 920 events. 0/920 cut-off events. For 22050/22050 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1432 event pairs, 0 based on Foata normal form. 0/870 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2023-08-24 05:21:25,823 INFO L119 LiptonReduction]: Number of co-enabled transitions 331100 [2023-08-24 05:21:32,700 INFO L134 LiptonReduction]: Checked pairs total: 579273 [2023-08-24 05:21:32,701 INFO L136 LiptonReduction]: Total number of compositions: 421 [2023-08-24 05:21:32,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:21:32,701 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:21:32,701 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:21:32,754 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:21:32,755 INFO L124 PetriNetUnfolderBase]: 0/301 cut-off events. [2023-08-24 05:21:32,755 INFO L125 PetriNetUnfolderBase]: For 22050/22050 co-relation queries the response was YES. [2023-08-24 05:21:32,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:21:32,755 INFO L208 CegarLoopForPetriNet]: trace histogram [50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:21:32,755 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:21:32,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:21:32,755 INFO L85 PathProgramCache]: Analyzing trace with hash 11270993, now seen corresponding path program 1 times [2023-08-24 05:21:32,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:21:32,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941315318] [2023-08-24 05:21:32,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:21:32,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:21:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:32,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:21:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:32,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:21:32,896 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:21:32,896 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:21:32,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-24 05:21:32,896 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:21:32,896 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:21:32,896 WARN L233 ceAbstractionStarter]: 50 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:21:32,896 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 51 thread instances. [2023-08-24 05:21:32,979 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:21:32,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 742 places, 640 transitions, 4085 flow [2023-08-24 05:21:33,345 INFO L124 PetriNetUnfolderBase]: 52/1250 cut-off events. [2023-08-24 05:21:33,345 INFO L125 PetriNetUnfolderBase]: For 23375/23375 co-relation queries the response was YES. [2023-08-24 05:21:33,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 1250 events. 52/1250 cut-off events. For 23375/23375 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2693 event pairs, 0 based on Foata normal form. 0/1095 useless extension candidates. Maximal degree in co-relation 2639. Up to 104 conditions per place. [2023-08-24 05:21:33,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 742 places, 640 transitions, 4085 flow [2023-08-24 05:21:33,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 737 places, 634 transitions, 4073 flow [2023-08-24 05:21:33,388 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:21:33,388 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 737 places, 634 transitions, 4073 flow [2023-08-24 05:21:33,388 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 737 places, 634 transitions, 4073 flow [2023-08-24 05:21:33,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 737 places, 634 transitions, 4073 flow [2023-08-24 05:21:33,724 INFO L124 PetriNetUnfolderBase]: 0/938 cut-off events. [2023-08-24 05:21:33,724 INFO L125 PetriNetUnfolderBase]: For 23375/23375 co-relation queries the response was YES. [2023-08-24 05:21:33,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2418 conditions, 938 events. 0/938 cut-off events. For 23375/23375 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1460 event pairs, 0 based on Foata normal form. 0/887 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2023-08-24 05:21:33,809 INFO L119 LiptonReduction]: Number of co-enabled transitions 344454 [2023-08-24 05:21:40,855 INFO L134 LiptonReduction]: Checked pairs total: 605484 [2023-08-24 05:21:40,855 INFO L136 LiptonReduction]: Total number of compositions: 429 [2023-08-24 05:21:40,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:21:40,856 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:21:40,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:21:40,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:21:40,915 INFO L124 PetriNetUnfolderBase]: 0/307 cut-off events. [2023-08-24 05:21:40,915 INFO L125 PetriNetUnfolderBase]: For 23375/23375 co-relation queries the response was YES. [2023-08-24 05:21:40,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:21:40,915 INFO L208 CegarLoopForPetriNet]: trace histogram [51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:21:40,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:21:40,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:21:40,916 INFO L85 PathProgramCache]: Analyzing trace with hash 299190524, now seen corresponding path program 1 times [2023-08-24 05:21:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:21:40,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139758720] [2023-08-24 05:21:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:21:40,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:21:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:40,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:21:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:41,050 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:21:41,051 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:21:41,051 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:21:41,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-24 05:21:41,051 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:21:41,051 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:21:41,051 WARN L233 ceAbstractionStarter]: 51 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:21:41,051 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 52 thread instances. [2023-08-24 05:21:41,131 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:21:41,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 756 places, 652 transitions, 4216 flow [2023-08-24 05:21:41,552 INFO L124 PetriNetUnfolderBase]: 53/1274 cut-off events. [2023-08-24 05:21:41,553 INFO L125 PetriNetUnfolderBase]: For 24752/24752 co-relation queries the response was YES. [2023-08-24 05:21:41,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2809 conditions, 1274 events. 53/1274 cut-off events. For 24752/24752 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2758 event pairs, 0 based on Foata normal form. 0/1116 useless extension candidates. Maximal degree in co-relation 2717. Up to 106 conditions per place. [2023-08-24 05:21:41,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 756 places, 652 transitions, 4216 flow [2023-08-24 05:21:41,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 751 places, 646 transitions, 4204 flow [2023-08-24 05:21:41,598 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:21:41,598 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 751 places, 646 transitions, 4204 flow [2023-08-24 05:21:41,598 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 751 places, 646 transitions, 4204 flow [2023-08-24 05:21:41,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 751 places, 646 transitions, 4204 flow [2023-08-24 05:21:41,956 INFO L124 PetriNetUnfolderBase]: 0/956 cut-off events. [2023-08-24 05:21:41,956 INFO L125 PetriNetUnfolderBase]: For 24752/24752 co-relation queries the response was YES. [2023-08-24 05:21:41,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2491 conditions, 956 events. 0/956 cut-off events. For 24752/24752 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1500 event pairs, 0 based on Foata normal form. 0/904 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2023-08-24 05:21:42,053 INFO L119 LiptonReduction]: Number of co-enabled transitions 358072 [2023-08-24 05:21:49,300 INFO L134 LiptonReduction]: Checked pairs total: 649960 [2023-08-24 05:21:49,300 INFO L136 LiptonReduction]: Total number of compositions: 437 [2023-08-24 05:21:49,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:21:49,301 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:21:49,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:21:49,360 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:21:49,360 INFO L124 PetriNetUnfolderBase]: 0/313 cut-off events. [2023-08-24 05:21:49,360 INFO L125 PetriNetUnfolderBase]: For 24752/24752 co-relation queries the response was YES. [2023-08-24 05:21:49,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:21:49,360 INFO L208 CegarLoopForPetriNet]: trace histogram [52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:21:49,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:21:49,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:21:49,360 INFO L85 PathProgramCache]: Analyzing trace with hash -483450722, now seen corresponding path program 1 times [2023-08-24 05:21:49,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:21:49,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989564071] [2023-08-24 05:21:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:21:49,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:21:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:49,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:21:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:49,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:21:49,502 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:21:49,502 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:21:49,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-24 05:21:49,502 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:21:49,503 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:21:49,503 WARN L233 ceAbstractionStarter]: 52 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:21:49,503 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 53 thread instances. [2023-08-24 05:21:49,594 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:21:49,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 770 places, 664 transitions, 4349 flow [2023-08-24 05:21:50,005 INFO L124 PetriNetUnfolderBase]: 54/1298 cut-off events. [2023-08-24 05:21:50,006 INFO L125 PetriNetUnfolderBase]: For 26182/26182 co-relation queries the response was YES. [2023-08-24 05:21:50,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2889 conditions, 1298 events. 54/1298 cut-off events. For 26182/26182 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2800 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 2796. Up to 108 conditions per place. [2023-08-24 05:21:50,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 770 places, 664 transitions, 4349 flow [2023-08-24 05:21:50,055 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 765 places, 658 transitions, 4337 flow [2023-08-24 05:21:50,056 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:21:50,056 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 765 places, 658 transitions, 4337 flow [2023-08-24 05:21:50,056 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 765 places, 658 transitions, 4337 flow [2023-08-24 05:21:50,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 765 places, 658 transitions, 4337 flow [2023-08-24 05:21:50,385 INFO L124 PetriNetUnfolderBase]: 0/974 cut-off events. [2023-08-24 05:21:50,385 INFO L125 PetriNetUnfolderBase]: For 26182/26182 co-relation queries the response was YES. [2023-08-24 05:21:50,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2565 conditions, 974 events. 0/974 cut-off events. For 26182/26182 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1520 event pairs, 0 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2023-08-24 05:21:50,594 INFO L119 LiptonReduction]: Number of co-enabled transitions 371954 [2023-08-24 05:21:57,968 INFO L134 LiptonReduction]: Checked pairs total: 597844 [2023-08-24 05:21:57,968 INFO L136 LiptonReduction]: Total number of compositions: 445 [2023-08-24 05:21:57,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:21:57,969 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:21:57,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:21:58,030 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:21:58,030 INFO L124 PetriNetUnfolderBase]: 0/319 cut-off events. [2023-08-24 05:21:58,031 INFO L125 PetriNetUnfolderBase]: For 26182/26182 co-relation queries the response was YES. [2023-08-24 05:21:58,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:21:58,031 INFO L208 CegarLoopForPetriNet]: trace histogram [53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:21:58,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:21:58,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:21:58,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1201697035, now seen corresponding path program 1 times [2023-08-24 05:21:58,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:21:58,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720139887] [2023-08-24 05:21:58,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:21:58,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:21:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:58,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:21:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:21:58,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:21:58,186 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:21:58,186 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:21:58,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-24 05:21:58,187 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:21:58,187 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:21:58,187 WARN L233 ceAbstractionStarter]: 53 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:21:58,187 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 54 thread instances. [2023-08-24 05:21:58,274 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:21:58,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 784 places, 676 transitions, 4484 flow [2023-08-24 05:21:58,768 INFO L124 PetriNetUnfolderBase]: 55/1322 cut-off events. [2023-08-24 05:21:58,768 INFO L125 PetriNetUnfolderBase]: For 27666/27666 co-relation queries the response was YES. [2023-08-24 05:21:58,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2970 conditions, 1322 events. 55/1322 cut-off events. For 27666/27666 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2882 event pairs, 0 based on Foata normal form. 0/1158 useless extension candidates. Maximal degree in co-relation 2876. Up to 110 conditions per place. [2023-08-24 05:21:58,812 INFO L82 GeneralOperation]: Start removeDead. Operand has 784 places, 676 transitions, 4484 flow [2023-08-24 05:21:58,814 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 779 places, 670 transitions, 4472 flow [2023-08-24 05:21:58,814 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:21:58,814 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 779 places, 670 transitions, 4472 flow [2023-08-24 05:21:58,814 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 779 places, 670 transitions, 4472 flow [2023-08-24 05:21:58,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 779 places, 670 transitions, 4472 flow [2023-08-24 05:21:59,140 INFO L124 PetriNetUnfolderBase]: 0/992 cut-off events. [2023-08-24 05:21:59,141 INFO L125 PetriNetUnfolderBase]: For 27666/27666 co-relation queries the response was YES. [2023-08-24 05:21:59,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2640 conditions, 992 events. 0/992 cut-off events. For 27666/27666 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1567 event pairs, 0 based on Foata normal form. 0/938 useless extension candidates. Maximal degree in co-relation 0. Up to 55 conditions per place. [2023-08-24 05:21:59,246 INFO L119 LiptonReduction]: Number of co-enabled transitions 386100 [2023-08-24 05:22:06,663 INFO L134 LiptonReduction]: Checked pairs total: 618835 [2023-08-24 05:22:06,664 INFO L136 LiptonReduction]: Total number of compositions: 453 [2023-08-24 05:22:06,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:22:06,665 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:22:06,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:22:06,733 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:22:06,734 INFO L124 PetriNetUnfolderBase]: 0/325 cut-off events. [2023-08-24 05:22:06,734 INFO L125 PetriNetUnfolderBase]: For 27666/27666 co-relation queries the response was YES. [2023-08-24 05:22:06,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:22:06,734 INFO L208 CegarLoopForPetriNet]: trace histogram [54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:22:06,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:22:06,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:22:06,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1937090539, now seen corresponding path program 1 times [2023-08-24 05:22:06,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:22:06,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192103983] [2023-08-24 05:22:06,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:22:06,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:22:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:06,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:22:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:06,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:22:06,876 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:22:06,876 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:22:06,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-08-24 05:22:06,877 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:22:06,877 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:22:06,877 WARN L233 ceAbstractionStarter]: 54 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:22:06,877 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 55 thread instances. [2023-08-24 05:22:06,961 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:22:06,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 798 places, 688 transitions, 4621 flow [2023-08-24 05:22:07,417 INFO L124 PetriNetUnfolderBase]: 56/1346 cut-off events. [2023-08-24 05:22:07,417 INFO L125 PetriNetUnfolderBase]: For 29205/29205 co-relation queries the response was YES. [2023-08-24 05:22:07,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3052 conditions, 1346 events. 56/1346 cut-off events. For 29205/29205 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2913 event pairs, 0 based on Foata normal form. 0/1179 useless extension candidates. Maximal degree in co-relation 2957. Up to 112 conditions per place. [2023-08-24 05:22:07,467 INFO L82 GeneralOperation]: Start removeDead. Operand has 798 places, 688 transitions, 4621 flow [2023-08-24 05:22:07,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 793 places, 682 transitions, 4609 flow [2023-08-24 05:22:07,470 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:22:07,470 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 793 places, 682 transitions, 4609 flow [2023-08-24 05:22:07,470 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 793 places, 682 transitions, 4609 flow [2023-08-24 05:22:07,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 793 places, 682 transitions, 4609 flow [2023-08-24 05:22:07,898 INFO L124 PetriNetUnfolderBase]: 0/1010 cut-off events. [2023-08-24 05:22:07,898 INFO L125 PetriNetUnfolderBase]: For 29205/29205 co-relation queries the response was YES. [2023-08-24 05:22:07,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2716 conditions, 1010 events. 0/1010 cut-off events. For 29205/29205 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1584 event pairs, 0 based on Foata normal form. 0/955 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2023-08-24 05:22:07,998 INFO L119 LiptonReduction]: Number of co-enabled transitions 400510 [2023-08-24 05:22:15,646 INFO L134 LiptonReduction]: Checked pairs total: 708130 [2023-08-24 05:22:15,647 INFO L136 LiptonReduction]: Total number of compositions: 461 [2023-08-24 05:22:15,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:22:15,648 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:22:15,648 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:22:15,712 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:22:15,712 INFO L124 PetriNetUnfolderBase]: 0/331 cut-off events. [2023-08-24 05:22:15,712 INFO L125 PetriNetUnfolderBase]: For 29205/29205 co-relation queries the response was YES. [2023-08-24 05:22:15,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:22:15,713 INFO L208 CegarLoopForPetriNet]: trace histogram [55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:22:15,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:22:15,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:22:15,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1077035679, now seen corresponding path program 1 times [2023-08-24 05:22:15,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:22:15,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673581735] [2023-08-24 05:22:15,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:22:15,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:22:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:15,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:22:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:15,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:22:15,902 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:22:15,902 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:22:15,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-08-24 05:22:15,902 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:22:15,902 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:22:15,902 WARN L233 ceAbstractionStarter]: 55 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:22:15,902 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 56 thread instances. [2023-08-24 05:22:15,996 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:22:16,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 812 places, 700 transitions, 4760 flow [2023-08-24 05:22:16,501 INFO L124 PetriNetUnfolderBase]: 57/1370 cut-off events. [2023-08-24 05:22:16,502 INFO L125 PetriNetUnfolderBase]: For 30800/30800 co-relation queries the response was YES. [2023-08-24 05:22:16,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3135 conditions, 1370 events. 57/1370 cut-off events. For 30800/30800 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3061 event pairs, 0 based on Foata normal form. 0/1200 useless extension candidates. Maximal degree in co-relation 3039. Up to 114 conditions per place. [2023-08-24 05:22:16,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 812 places, 700 transitions, 4760 flow [2023-08-24 05:22:16,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 807 places, 694 transitions, 4748 flow [2023-08-24 05:22:16,556 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:22:16,556 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 807 places, 694 transitions, 4748 flow [2023-08-24 05:22:16,556 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 807 places, 694 transitions, 4748 flow [2023-08-24 05:22:16,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 807 places, 694 transitions, 4748 flow [2023-08-24 05:22:16,918 INFO L124 PetriNetUnfolderBase]: 0/1028 cut-off events. [2023-08-24 05:22:16,918 INFO L125 PetriNetUnfolderBase]: For 30800/30800 co-relation queries the response was YES. [2023-08-24 05:22:16,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2793 conditions, 1028 events. 0/1028 cut-off events. For 30800/30800 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1597 event pairs, 0 based on Foata normal form. 0/972 useless extension candidates. Maximal degree in co-relation 0. Up to 57 conditions per place. [2023-08-24 05:22:17,038 INFO L119 LiptonReduction]: Number of co-enabled transitions 415184 [2023-08-24 05:22:24,802 INFO L134 LiptonReduction]: Checked pairs total: 664300 [2023-08-24 05:22:24,802 INFO L136 LiptonReduction]: Total number of compositions: 469 [2023-08-24 05:22:24,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:22:24,804 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:22:24,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:22:24,875 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:22:24,875 INFO L124 PetriNetUnfolderBase]: 0/337 cut-off events. [2023-08-24 05:22:24,875 INFO L125 PetriNetUnfolderBase]: For 30800/30800 co-relation queries the response was YES. [2023-08-24 05:22:24,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:22:24,875 INFO L208 CegarLoopForPetriNet]: trace histogram [56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:22:24,875 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:22:24,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:22:24,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1926537208, now seen corresponding path program 1 times [2023-08-24 05:22:24,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:22:24,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592555031] [2023-08-24 05:22:24,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:22:24,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:22:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:24,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:22:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:25,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:22:25,025 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:22:25,025 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:22:25,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-08-24 05:22:25,025 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:22:25,025 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:22:25,025 WARN L233 ceAbstractionStarter]: 56 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:22:25,025 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 57 thread instances. [2023-08-24 05:22:25,118 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:22:25,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 826 places, 712 transitions, 4901 flow [2023-08-24 05:22:25,817 INFO L124 PetriNetUnfolderBase]: 58/1394 cut-off events. [2023-08-24 05:22:25,817 INFO L125 PetriNetUnfolderBase]: For 32452/32452 co-relation queries the response was YES. [2023-08-24 05:22:25,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3219 conditions, 1394 events. 58/1394 cut-off events. For 32452/32452 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3007 event pairs, 0 based on Foata normal form. 0/1221 useless extension candidates. Maximal degree in co-relation 3122. Up to 116 conditions per place. [2023-08-24 05:22:25,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 826 places, 712 transitions, 4901 flow [2023-08-24 05:22:25,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 821 places, 706 transitions, 4889 flow [2023-08-24 05:22:25,862 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:22:25,862 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 821 places, 706 transitions, 4889 flow [2023-08-24 05:22:25,862 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 821 places, 706 transitions, 4889 flow [2023-08-24 05:22:25,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 821 places, 706 transitions, 4889 flow [2023-08-24 05:22:26,220 INFO L124 PetriNetUnfolderBase]: 0/1046 cut-off events. [2023-08-24 05:22:26,220 INFO L125 PetriNetUnfolderBase]: For 32452/32452 co-relation queries the response was YES. [2023-08-24 05:22:26,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 1046 events. 0/1046 cut-off events. For 32452/32452 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1632 event pairs, 0 based on Foata normal form. 0/989 useless extension candidates. Maximal degree in co-relation 0. Up to 58 conditions per place. [2023-08-24 05:22:26,339 INFO L119 LiptonReduction]: Number of co-enabled transitions 430122 [2023-08-24 05:22:34,334 INFO L134 LiptonReduction]: Checked pairs total: 701897 [2023-08-24 05:22:34,334 INFO L136 LiptonReduction]: Total number of compositions: 477 [2023-08-24 05:22:34,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:22:34,335 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:22:34,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:22:34,405 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:22:34,405 INFO L124 PetriNetUnfolderBase]: 0/343 cut-off events. [2023-08-24 05:22:34,405 INFO L125 PetriNetUnfolderBase]: For 32452/32452 co-relation queries the response was YES. [2023-08-24 05:22:34,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:22:34,405 INFO L208 CegarLoopForPetriNet]: trace histogram [57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:22:34,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:22:34,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:22:34,406 INFO L85 PathProgramCache]: Analyzing trace with hash 590275147, now seen corresponding path program 1 times [2023-08-24 05:22:34,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:22:34,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96972250] [2023-08-24 05:22:34,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:22:34,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:22:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:34,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:22:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:34,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:22:34,557 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:22:34,557 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:22:34,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-08-24 05:22:34,557 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:22:34,557 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:22:34,557 WARN L233 ceAbstractionStarter]: 57 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:22:34,557 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 58 thread instances. [2023-08-24 05:22:34,664 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:22:34,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 840 places, 724 transitions, 5044 flow [2023-08-24 05:22:35,196 INFO L124 PetriNetUnfolderBase]: 59/1418 cut-off events. [2023-08-24 05:22:35,197 INFO L125 PetriNetUnfolderBase]: For 34162/34162 co-relation queries the response was YES. [2023-08-24 05:22:35,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3304 conditions, 1418 events. 59/1418 cut-off events. For 34162/34162 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3181 event pairs, 0 based on Foata normal form. 0/1242 useless extension candidates. Maximal degree in co-relation 3206. Up to 118 conditions per place. [2023-08-24 05:22:35,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 840 places, 724 transitions, 5044 flow [2023-08-24 05:22:35,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 835 places, 718 transitions, 5032 flow [2023-08-24 05:22:35,257 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:22:35,257 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 835 places, 718 transitions, 5032 flow [2023-08-24 05:22:35,257 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 835 places, 718 transitions, 5032 flow [2023-08-24 05:22:35,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 835 places, 718 transitions, 5032 flow [2023-08-24 05:22:35,749 INFO L124 PetriNetUnfolderBase]: 0/1064 cut-off events. [2023-08-24 05:22:35,749 INFO L125 PetriNetUnfolderBase]: For 34162/34162 co-relation queries the response was YES. [2023-08-24 05:22:35,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 1064 events. 0/1064 cut-off events. For 34162/34162 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1663 event pairs, 0 based on Foata normal form. 0/1006 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2023-08-24 05:22:35,864 INFO L119 LiptonReduction]: Number of co-enabled transitions 445324 [2023-08-24 05:22:43,968 INFO L134 LiptonReduction]: Checked pairs total: 739240 [2023-08-24 05:22:43,968 INFO L136 LiptonReduction]: Total number of compositions: 485 [2023-08-24 05:22:43,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:22:43,969 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:22:43,969 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:22:44,094 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:22:44,094 INFO L124 PetriNetUnfolderBase]: 0/349 cut-off events. [2023-08-24 05:22:44,094 INFO L125 PetriNetUnfolderBase]: For 34162/34162 co-relation queries the response was YES. [2023-08-24 05:22:44,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:22:44,095 INFO L208 CegarLoopForPetriNet]: trace histogram [58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:22:44,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:22:44,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:22:44,096 INFO L85 PathProgramCache]: Analyzing trace with hash 805740037, now seen corresponding path program 1 times [2023-08-24 05:22:44,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:22:44,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096913848] [2023-08-24 05:22:44,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:22:44,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:22:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:44,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:22:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:44,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:22:44,237 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:22:44,237 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:22:44,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-08-24 05:22:44,237 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:22:44,238 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:22:44,238 WARN L233 ceAbstractionStarter]: 58 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:22:44,238 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 59 thread instances. [2023-08-24 05:22:44,323 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:22:44,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 854 places, 736 transitions, 5189 flow [2023-08-24 05:22:44,993 INFO L124 PetriNetUnfolderBase]: 60/1442 cut-off events. [2023-08-24 05:22:44,993 INFO L125 PetriNetUnfolderBase]: For 35931/35931 co-relation queries the response was YES. [2023-08-24 05:22:45,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3390 conditions, 1442 events. 60/1442 cut-off events. For 35931/35931 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3139 event pairs, 0 based on Foata normal form. 0/1263 useless extension candidates. Maximal degree in co-relation 3291. Up to 120 conditions per place. [2023-08-24 05:22:45,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 854 places, 736 transitions, 5189 flow [2023-08-24 05:22:45,054 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 849 places, 730 transitions, 5177 flow [2023-08-24 05:22:45,054 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:22:45,055 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 849 places, 730 transitions, 5177 flow [2023-08-24 05:22:45,055 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 849 places, 730 transitions, 5177 flow [2023-08-24 05:22:45,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 849 places, 730 transitions, 5177 flow [2023-08-24 05:22:45,441 INFO L124 PetriNetUnfolderBase]: 0/1082 cut-off events. [2023-08-24 05:22:45,441 INFO L125 PetriNetUnfolderBase]: For 35931/35931 co-relation queries the response was YES. [2023-08-24 05:22:45,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3030 conditions, 1082 events. 0/1082 cut-off events. For 35931/35931 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1699 event pairs, 0 based on Foata normal form. 0/1023 useless extension candidates. Maximal degree in co-relation 0. Up to 60 conditions per place. [2023-08-24 05:22:45,578 INFO L119 LiptonReduction]: Number of co-enabled transitions 460790 [2023-08-24 05:22:53,734 INFO L134 LiptonReduction]: Checked pairs total: 759493 [2023-08-24 05:22:53,734 INFO L136 LiptonReduction]: Total number of compositions: 493 [2023-08-24 05:22:53,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:22:53,735 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:22:53,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:22:53,812 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:22:53,812 INFO L124 PetriNetUnfolderBase]: 0/355 cut-off events. [2023-08-24 05:22:53,812 INFO L125 PetriNetUnfolderBase]: For 35931/35931 co-relation queries the response was YES. [2023-08-24 05:22:53,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:22:53,812 INFO L208 CegarLoopForPetriNet]: trace histogram [59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:22:53,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:22:53,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:22:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash -2080477190, now seen corresponding path program 1 times [2023-08-24 05:22:53,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:22:53,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766728191] [2023-08-24 05:22:53,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:22:53,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:22:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:53,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:22:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:22:53,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:22:53,994 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:22:53,994 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:22:53,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-08-24 05:22:53,994 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:22:53,994 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:22:53,994 WARN L233 ceAbstractionStarter]: 59 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:22:53,994 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 60 thread instances. [2023-08-24 05:22:54,082 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:22:54,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 868 places, 748 transitions, 5336 flow [2023-08-24 05:22:54,645 INFO L124 PetriNetUnfolderBase]: 61/1466 cut-off events. [2023-08-24 05:22:54,646 INFO L125 PetriNetUnfolderBase]: For 37760/37760 co-relation queries the response was YES. [2023-08-24 05:22:54,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3477 conditions, 1466 events. 61/1466 cut-off events. For 37760/37760 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3174 event pairs, 0 based on Foata normal form. 0/1284 useless extension candidates. Maximal degree in co-relation 3377. Up to 122 conditions per place. [2023-08-24 05:22:54,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 868 places, 748 transitions, 5336 flow [2023-08-24 05:22:54,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 863 places, 742 transitions, 5324 flow [2023-08-24 05:22:54,702 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:22:54,702 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 863 places, 742 transitions, 5324 flow [2023-08-24 05:22:54,702 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 863 places, 742 transitions, 5324 flow [2023-08-24 05:22:54,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 863 places, 742 transitions, 5324 flow [2023-08-24 05:22:55,115 INFO L124 PetriNetUnfolderBase]: 0/1100 cut-off events. [2023-08-24 05:22:55,116 INFO L125 PetriNetUnfolderBase]: For 37760/37760 co-relation queries the response was YES. [2023-08-24 05:22:55,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3111 conditions, 1100 events. 0/1100 cut-off events. For 37760/37760 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1729 event pairs, 0 based on Foata normal form. 0/1040 useless extension candidates. Maximal degree in co-relation 0. Up to 61 conditions per place. [2023-08-24 05:22:55,250 INFO L119 LiptonReduction]: Number of co-enabled transitions 476520 [2023-08-24 05:23:03,525 INFO L134 LiptonReduction]: Checked pairs total: 797539 [2023-08-24 05:23:03,525 INFO L136 LiptonReduction]: Total number of compositions: 501 [2023-08-24 05:23:03,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:23:03,526 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:23:03,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:23:03,605 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:23:03,605 INFO L124 PetriNetUnfolderBase]: 0/361 cut-off events. [2023-08-24 05:23:03,605 INFO L125 PetriNetUnfolderBase]: For 37760/37760 co-relation queries the response was YES. [2023-08-24 05:23:03,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:23:03,606 INFO L208 CegarLoopForPetriNet]: trace histogram [60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:23:03,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:23:03,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:23:03,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1892856338, now seen corresponding path program 1 times [2023-08-24 05:23:03,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:23:03,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951985165] [2023-08-24 05:23:03,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:23:03,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:23:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:03,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:23:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:03,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:23:03,794 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:23:03,794 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:23:03,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-08-24 05:23:03,794 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:23:03,795 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:23:03,795 WARN L233 ceAbstractionStarter]: 60 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:23:03,795 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 61 thread instances. [2023-08-24 05:23:03,890 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:23:03,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 882 places, 760 transitions, 5485 flow [2023-08-24 05:23:04,603 INFO L124 PetriNetUnfolderBase]: 62/1490 cut-off events. [2023-08-24 05:23:04,603 INFO L125 PetriNetUnfolderBase]: For 39650/39650 co-relation queries the response was YES. [2023-08-24 05:23:04,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3565 conditions, 1490 events. 62/1490 cut-off events. For 39650/39650 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3243 event pairs, 0 based on Foata normal form. 0/1305 useless extension candidates. Maximal degree in co-relation 3464. Up to 124 conditions per place. [2023-08-24 05:23:04,655 INFO L82 GeneralOperation]: Start removeDead. Operand has 882 places, 760 transitions, 5485 flow [2023-08-24 05:23:04,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 877 places, 754 transitions, 5473 flow [2023-08-24 05:23:04,658 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:23:04,658 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 877 places, 754 transitions, 5473 flow [2023-08-24 05:23:04,658 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 877 places, 754 transitions, 5473 flow [2023-08-24 05:23:04,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 877 places, 754 transitions, 5473 flow [2023-08-24 05:23:05,080 INFO L124 PetriNetUnfolderBase]: 0/1118 cut-off events. [2023-08-24 05:23:05,080 INFO L125 PetriNetUnfolderBase]: For 39650/39650 co-relation queries the response was YES. [2023-08-24 05:23:05,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3193 conditions, 1118 events. 0/1118 cut-off events. For 39650/39650 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1767 event pairs, 0 based on Foata normal form. 0/1057 useless extension candidates. Maximal degree in co-relation 0. Up to 62 conditions per place. [2023-08-24 05:23:05,221 INFO L119 LiptonReduction]: Number of co-enabled transitions 492514 [2023-08-24 05:23:13,838 INFO L134 LiptonReduction]: Checked pairs total: 808342 [2023-08-24 05:23:13,838 INFO L136 LiptonReduction]: Total number of compositions: 509 [2023-08-24 05:23:13,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:23:13,839 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:23:13,839 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:23:13,929 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:23:13,929 INFO L124 PetriNetUnfolderBase]: 0/367 cut-off events. [2023-08-24 05:23:13,929 INFO L125 PetriNetUnfolderBase]: For 39650/39650 co-relation queries the response was YES. [2023-08-24 05:23:13,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:23:13,929 INFO L208 CegarLoopForPetriNet]: trace histogram [61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:23:13,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:23:13,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:23:13,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1692777857, now seen corresponding path program 1 times [2023-08-24 05:23:13,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:23:13,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211812261] [2023-08-24 05:23:13,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:23:13,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:23:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:13,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:23:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:14,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:23:14,097 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:23:14,097 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:23:14,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-08-24 05:23:14,097 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:23:14,098 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:23:14,098 WARN L233 ceAbstractionStarter]: 61 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:23:14,098 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 62 thread instances. [2023-08-24 05:23:14,193 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:23:14,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 896 places, 772 transitions, 5636 flow [2023-08-24 05:23:14,885 INFO L124 PetriNetUnfolderBase]: 63/1514 cut-off events. [2023-08-24 05:23:14,885 INFO L125 PetriNetUnfolderBase]: For 41602/41602 co-relation queries the response was YES. [2023-08-24 05:23:14,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3654 conditions, 1514 events. 63/1514 cut-off events. For 41602/41602 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3263 event pairs, 0 based on Foata normal form. 0/1326 useless extension candidates. Maximal degree in co-relation 3552. Up to 126 conditions per place. [2023-08-24 05:23:14,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 896 places, 772 transitions, 5636 flow [2023-08-24 05:23:14,941 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 891 places, 766 transitions, 5624 flow [2023-08-24 05:23:14,941 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:23:14,941 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 891 places, 766 transitions, 5624 flow [2023-08-24 05:23:14,941 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 891 places, 766 transitions, 5624 flow [2023-08-24 05:23:14,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 891 places, 766 transitions, 5624 flow [2023-08-24 05:23:15,376 INFO L124 PetriNetUnfolderBase]: 0/1136 cut-off events. [2023-08-24 05:23:15,376 INFO L125 PetriNetUnfolderBase]: For 41602/41602 co-relation queries the response was YES. [2023-08-24 05:23:15,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3276 conditions, 1136 events. 0/1136 cut-off events. For 41602/41602 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1851 event pairs, 0 based on Foata normal form. 0/1074 useless extension candidates. Maximal degree in co-relation 0. Up to 63 conditions per place. [2023-08-24 05:23:15,522 INFO L119 LiptonReduction]: Number of co-enabled transitions 508772 [2023-08-24 05:23:24,101 INFO L134 LiptonReduction]: Checked pairs total: 797884 [2023-08-24 05:23:24,102 INFO L136 LiptonReduction]: Total number of compositions: 517 [2023-08-24 05:23:24,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:23:24,103 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:23:24,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:23:24,187 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:23:24,188 INFO L124 PetriNetUnfolderBase]: 0/373 cut-off events. [2023-08-24 05:23:24,188 INFO L125 PetriNetUnfolderBase]: For 41602/41602 co-relation queries the response was YES. [2023-08-24 05:23:24,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:23:24,188 INFO L208 CegarLoopForPetriNet]: trace histogram [62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:23:24,188 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:23:24,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:23:24,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1127913441, now seen corresponding path program 1 times [2023-08-24 05:23:24,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:23:24,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119678571] [2023-08-24 05:23:24,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:23:24,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:23:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:24,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:23:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:24,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:23:24,352 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:23:24,352 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:23:24,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-08-24 05:23:24,352 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:23:24,352 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:23:24,352 WARN L233 ceAbstractionStarter]: 62 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:23:24,352 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 63 thread instances. [2023-08-24 05:23:24,444 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:23:24,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 910 places, 784 transitions, 5789 flow [2023-08-24 05:23:25,315 INFO L124 PetriNetUnfolderBase]: 64/1538 cut-off events. [2023-08-24 05:23:25,316 INFO L125 PetriNetUnfolderBase]: For 43617/43617 co-relation queries the response was YES. [2023-08-24 05:23:25,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3744 conditions, 1538 events. 64/1538 cut-off events. For 43617/43617 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3312 event pairs, 0 based on Foata normal form. 0/1347 useless extension candidates. Maximal degree in co-relation 3641. Up to 128 conditions per place. [2023-08-24 05:23:25,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 910 places, 784 transitions, 5789 flow [2023-08-24 05:23:25,373 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 905 places, 778 transitions, 5777 flow [2023-08-24 05:23:25,374 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:23:25,374 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 905 places, 778 transitions, 5777 flow [2023-08-24 05:23:25,374 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 905 places, 778 transitions, 5777 flow [2023-08-24 05:23:25,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 905 places, 778 transitions, 5777 flow [2023-08-24 05:23:25,837 INFO L124 PetriNetUnfolderBase]: 0/1154 cut-off events. [2023-08-24 05:23:25,838 INFO L125 PetriNetUnfolderBase]: For 43617/43617 co-relation queries the response was YES. [2023-08-24 05:23:25,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3360 conditions, 1154 events. 0/1154 cut-off events. For 43617/43617 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1868 event pairs, 0 based on Foata normal form. 0/1091 useless extension candidates. Maximal degree in co-relation 0. Up to 64 conditions per place. [2023-08-24 05:23:25,990 INFO L119 LiptonReduction]: Number of co-enabled transitions 525294 [2023-08-24 05:23:34,811 INFO L134 LiptonReduction]: Checked pairs total: 806137 [2023-08-24 05:23:34,811 INFO L136 LiptonReduction]: Total number of compositions: 525 [2023-08-24 05:23:34,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:23:34,812 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:23:34,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:23:34,897 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:23:34,897 INFO L124 PetriNetUnfolderBase]: 0/379 cut-off events. [2023-08-24 05:23:34,897 INFO L125 PetriNetUnfolderBase]: For 43617/43617 co-relation queries the response was YES. [2023-08-24 05:23:34,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:23:34,898 INFO L208 CegarLoopForPetriNet]: trace histogram [63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:23:34,898 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:23:34,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:23:34,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1153561682, now seen corresponding path program 1 times [2023-08-24 05:23:34,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:23:34,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253486732] [2023-08-24 05:23:34,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:23:34,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:23:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:34,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:23:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:35,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:23:35,086 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:23:35,086 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:23:35,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-08-24 05:23:35,086 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:23:35,086 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:23:35,086 WARN L233 ceAbstractionStarter]: 63 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:23:35,086 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 64 thread instances. [2023-08-24 05:23:35,315 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:23:35,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 924 places, 796 transitions, 5944 flow [2023-08-24 05:23:35,992 INFO L124 PetriNetUnfolderBase]: 65/1562 cut-off events. [2023-08-24 05:23:35,992 INFO L125 PetriNetUnfolderBase]: For 45696/45696 co-relation queries the response was YES. [2023-08-24 05:23:36,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3835 conditions, 1562 events. 65/1562 cut-off events. For 45696/45696 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3515 event pairs, 0 based on Foata normal form. 0/1368 useless extension candidates. Maximal degree in co-relation 3731. Up to 130 conditions per place. [2023-08-24 05:23:36,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 924 places, 796 transitions, 5944 flow [2023-08-24 05:23:36,069 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 919 places, 790 transitions, 5932 flow [2023-08-24 05:23:36,069 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:23:36,069 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 919 places, 790 transitions, 5932 flow [2023-08-24 05:23:36,070 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 919 places, 790 transitions, 5932 flow [2023-08-24 05:23:36,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 919 places, 790 transitions, 5932 flow [2023-08-24 05:23:36,547 INFO L124 PetriNetUnfolderBase]: 0/1172 cut-off events. [2023-08-24 05:23:36,547 INFO L125 PetriNetUnfolderBase]: For 45696/45696 co-relation queries the response was YES. [2023-08-24 05:23:36,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3445 conditions, 1172 events. 0/1172 cut-off events. For 45696/45696 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1917 event pairs, 0 based on Foata normal form. 0/1108 useless extension candidates. Maximal degree in co-relation 0. Up to 65 conditions per place. [2023-08-24 05:23:36,710 INFO L119 LiptonReduction]: Number of co-enabled transitions 542080 [2023-08-24 05:23:45,758 INFO L134 LiptonReduction]: Checked pairs total: 878510 [2023-08-24 05:23:45,758 INFO L136 LiptonReduction]: Total number of compositions: 533 [2023-08-24 05:23:45,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:23:45,759 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:23:45,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:23:45,848 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:23:45,848 INFO L124 PetriNetUnfolderBase]: 0/385 cut-off events. [2023-08-24 05:23:45,848 INFO L125 PetriNetUnfolderBase]: For 45696/45696 co-relation queries the response was YES. [2023-08-24 05:23:45,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:23:45,848 INFO L208 CegarLoopForPetriNet]: trace histogram [64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:23:45,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:23:45,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:23:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1131005524, now seen corresponding path program 1 times [2023-08-24 05:23:45,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:23:45,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802138135] [2023-08-24 05:23:45,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:23:45,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:23:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:45,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:23:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:46,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:23:46,044 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:23:46,044 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:23:46,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-08-24 05:23:46,044 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:23:46,045 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:23:46,045 WARN L233 ceAbstractionStarter]: 64 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:23:46,045 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 65 thread instances. [2023-08-24 05:23:46,212 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:23:46,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 938 places, 808 transitions, 6101 flow [2023-08-24 05:23:47,008 INFO L124 PetriNetUnfolderBase]: 66/1586 cut-off events. [2023-08-24 05:23:47,008 INFO L125 PetriNetUnfolderBase]: For 47840/47840 co-relation queries the response was YES. [2023-08-24 05:23:47,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3927 conditions, 1586 events. 66/1586 cut-off events. For 47840/47840 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3394 event pairs, 0 based on Foata normal form. 0/1389 useless extension candidates. Maximal degree in co-relation 3822. Up to 132 conditions per place. [2023-08-24 05:23:47,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 938 places, 808 transitions, 6101 flow [2023-08-24 05:23:47,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 933 places, 802 transitions, 6089 flow [2023-08-24 05:23:47,071 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:23:47,071 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 933 places, 802 transitions, 6089 flow [2023-08-24 05:23:47,071 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 933 places, 802 transitions, 6089 flow [2023-08-24 05:23:47,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 933 places, 802 transitions, 6089 flow [2023-08-24 05:23:47,765 INFO L124 PetriNetUnfolderBase]: 0/1190 cut-off events. [2023-08-24 05:23:47,765 INFO L125 PetriNetUnfolderBase]: For 47840/47840 co-relation queries the response was YES. [2023-08-24 05:23:47,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3531 conditions, 1190 events. 0/1190 cut-off events. For 47840/47840 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1916 event pairs, 0 based on Foata normal form. 0/1125 useless extension candidates. Maximal degree in co-relation 0. Up to 66 conditions per place. [2023-08-24 05:23:47,964 INFO L119 LiptonReduction]: Number of co-enabled transitions 559130 [2023-08-24 05:23:56,978 INFO L134 LiptonReduction]: Checked pairs total: 864090 [2023-08-24 05:23:56,979 INFO L136 LiptonReduction]: Total number of compositions: 541 [2023-08-24 05:23:56,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:23:56,980 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:23:56,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:23:57,074 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:23:57,074 INFO L124 PetriNetUnfolderBase]: 0/391 cut-off events. [2023-08-24 05:23:57,074 INFO L125 PetriNetUnfolderBase]: For 47840/47840 co-relation queries the response was YES. [2023-08-24 05:23:57,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:23:57,074 INFO L208 CegarLoopForPetriNet]: trace histogram [65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:23:57,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:23:57,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:23:57,075 INFO L85 PathProgramCache]: Analyzing trace with hash -939522243, now seen corresponding path program 1 times [2023-08-24 05:23:57,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:23:57,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377625328] [2023-08-24 05:23:57,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:23:57,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:23:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:57,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:23:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:23:57,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:23:57,371 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:23:57,371 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:23:57,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-08-24 05:23:57,371 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:23:57,371 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:23:57,371 WARN L233 ceAbstractionStarter]: 65 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:23:57,372 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 66 thread instances. [2023-08-24 05:23:57,475 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:23:57,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 952 places, 820 transitions, 6260 flow [2023-08-24 05:23:58,278 INFO L124 PetriNetUnfolderBase]: 67/1610 cut-off events. [2023-08-24 05:23:58,278 INFO L125 PetriNetUnfolderBase]: For 50050/50050 co-relation queries the response was YES. [2023-08-24 05:23:58,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4020 conditions, 1610 events. 67/1610 cut-off events. For 50050/50050 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3480 event pairs, 0 based on Foata normal form. 0/1410 useless extension candidates. Maximal degree in co-relation 3914. Up to 134 conditions per place. [2023-08-24 05:23:58,342 INFO L82 GeneralOperation]: Start removeDead. Operand has 952 places, 820 transitions, 6260 flow [2023-08-24 05:23:58,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 947 places, 814 transitions, 6248 flow [2023-08-24 05:23:58,345 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:23:58,345 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 947 places, 814 transitions, 6248 flow [2023-08-24 05:23:58,346 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 947 places, 814 transitions, 6248 flow [2023-08-24 05:23:58,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 947 places, 814 transitions, 6248 flow [2023-08-24 05:23:59,027 INFO L124 PetriNetUnfolderBase]: 0/1208 cut-off events. [2023-08-24 05:23:59,027 INFO L125 PetriNetUnfolderBase]: For 50050/50050 co-relation queries the response was YES. [2023-08-24 05:23:59,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3618 conditions, 1208 events. 0/1208 cut-off events. For 50050/50050 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1965 event pairs, 0 based on Foata normal form. 0/1142 useless extension candidates. Maximal degree in co-relation 0. Up to 67 conditions per place. [2023-08-24 05:23:59,221 INFO L119 LiptonReduction]: Number of co-enabled transitions 576444 [2023-08-24 05:24:08,608 INFO L134 LiptonReduction]: Checked pairs total: 914045 [2023-08-24 05:24:08,608 INFO L136 LiptonReduction]: Total number of compositions: 549 [2023-08-24 05:24:08,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:24:08,609 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:24:08,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:24:08,735 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:24:08,736 INFO L124 PetriNetUnfolderBase]: 0/397 cut-off events. [2023-08-24 05:24:08,736 INFO L125 PetriNetUnfolderBase]: For 50050/50050 co-relation queries the response was YES. [2023-08-24 05:24:08,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:24:08,736 INFO L208 CegarLoopForPetriNet]: trace histogram [66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:24:08,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:24:08,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:24:08,736 INFO L85 PathProgramCache]: Analyzing trace with hash 336945561, now seen corresponding path program 1 times [2023-08-24 05:24:08,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:24:08,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29842024] [2023-08-24 05:24:08,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:24:08,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:24:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:24:08,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:24:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:24:08,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:24:08,952 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:24:08,952 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:24:08,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-08-24 05:24:08,953 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:24:08,953 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:24:08,953 WARN L233 ceAbstractionStarter]: 66 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:24:08,953 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 67 thread instances. [2023-08-24 05:24:09,047 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:24:09,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 966 places, 832 transitions, 6421 flow [2023-08-24 05:24:09,873 INFO L124 PetriNetUnfolderBase]: 68/1634 cut-off events. [2023-08-24 05:24:09,873 INFO L125 PetriNetUnfolderBase]: For 52327/52327 co-relation queries the response was YES. [2023-08-24 05:24:09,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4114 conditions, 1634 events. 68/1634 cut-off events. For 52327/52327 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3520 event pairs, 0 based on Foata normal form. 0/1431 useless extension candidates. Maximal degree in co-relation 4007. Up to 136 conditions per place. [2023-08-24 05:24:09,952 INFO L82 GeneralOperation]: Start removeDead. Operand has 966 places, 832 transitions, 6421 flow [2023-08-24 05:24:09,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 961 places, 826 transitions, 6409 flow [2023-08-24 05:24:09,956 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:24:09,956 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 961 places, 826 transitions, 6409 flow [2023-08-24 05:24:09,956 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 961 places, 826 transitions, 6409 flow [2023-08-24 05:24:09,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 961 places, 826 transitions, 6409 flow [2023-08-24 05:24:10,671 INFO L124 PetriNetUnfolderBase]: 0/1226 cut-off events. [2023-08-24 05:24:10,671 INFO L125 PetriNetUnfolderBase]: For 52327/52327 co-relation queries the response was YES. [2023-08-24 05:24:10,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3706 conditions, 1226 events. 0/1226 cut-off events. For 52327/52327 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1995 event pairs, 0 based on Foata normal form. 0/1159 useless extension candidates. Maximal degree in co-relation 0. Up to 68 conditions per place. [2023-08-24 05:24:10,868 INFO L119 LiptonReduction]: Number of co-enabled transitions 594022 [2023-08-24 05:24:20,103 INFO L134 LiptonReduction]: Checked pairs total: 910241 [2023-08-24 05:24:20,103 INFO L136 LiptonReduction]: Total number of compositions: 557 [2023-08-24 05:24:20,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:24:20,104 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:24:20,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:24:20,203 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:24:20,203 INFO L124 PetriNetUnfolderBase]: 0/403 cut-off events. [2023-08-24 05:24:20,203 INFO L125 PetriNetUnfolderBase]: For 52327/52327 co-relation queries the response was YES. [2023-08-24 05:24:20,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:24:20,203 INFO L208 CegarLoopForPetriNet]: trace histogram [67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:24:20,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:24:20,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:24:20,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1783205241, now seen corresponding path program 1 times [2023-08-24 05:24:20,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:24:20,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102406202] [2023-08-24 05:24:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:24:20,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:24:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:24:20,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:24:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:24:20,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:24:20,472 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:24:20,473 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:24:20,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-08-24 05:24:20,473 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:24:20,473 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:24:20,474 WARN L233 ceAbstractionStarter]: 67 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:24:20,474 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 68 thread instances. [2023-08-24 05:24:20,569 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:24:20,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 980 places, 844 transitions, 6584 flow [2023-08-24 05:24:21,534 INFO L124 PetriNetUnfolderBase]: 69/1658 cut-off events. [2023-08-24 05:24:21,534 INFO L125 PetriNetUnfolderBase]: For 54672/54672 co-relation queries the response was YES. [2023-08-24 05:24:21,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4209 conditions, 1658 events. 69/1658 cut-off events. For 54672/54672 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3596 event pairs, 0 based on Foata normal form. 0/1452 useless extension candidates. Maximal degree in co-relation 4101. Up to 138 conditions per place. [2023-08-24 05:24:21,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 980 places, 844 transitions, 6584 flow [2023-08-24 05:24:21,603 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 975 places, 838 transitions, 6572 flow [2023-08-24 05:24:21,603 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:24:21,603 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 975 places, 838 transitions, 6572 flow [2023-08-24 05:24:21,603 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 975 places, 838 transitions, 6572 flow [2023-08-24 05:24:21,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 975 places, 838 transitions, 6572 flow [2023-08-24 05:24:22,341 INFO L124 PetriNetUnfolderBase]: 0/1244 cut-off events. [2023-08-24 05:24:22,341 INFO L125 PetriNetUnfolderBase]: For 54672/54672 co-relation queries the response was YES. [2023-08-24 05:24:22,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3795 conditions, 1244 events. 0/1244 cut-off events. For 54672/54672 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2034 event pairs, 0 based on Foata normal form. 0/1176 useless extension candidates. Maximal degree in co-relation 0. Up to 69 conditions per place. [2023-08-24 05:24:22,510 INFO L119 LiptonReduction]: Number of co-enabled transitions 611864 [2023-08-24 05:24:31,998 INFO L134 LiptonReduction]: Checked pairs total: 962376 [2023-08-24 05:24:31,999 INFO L136 LiptonReduction]: Total number of compositions: 565 [2023-08-24 05:24:31,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:24:32,000 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:24:32,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:24:32,108 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:24:32,108 INFO L124 PetriNetUnfolderBase]: 0/409 cut-off events. [2023-08-24 05:24:32,108 INFO L125 PetriNetUnfolderBase]: For 54672/54672 co-relation queries the response was YES. [2023-08-24 05:24:32,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:24:32,108 INFO L208 CegarLoopForPetriNet]: trace histogram [68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:24:32,109 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:24:32,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:24:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1572450694, now seen corresponding path program 1 times [2023-08-24 05:24:32,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:24:32,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836687727] [2023-08-24 05:24:32,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:24:32,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:24:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:24:32,207 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:24:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:24:32,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:24:32,314 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:24:32,314 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:24:32,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-08-24 05:24:32,314 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:24:32,314 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:24:32,314 WARN L233 ceAbstractionStarter]: 68 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:24:32,314 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 69 thread instances. [2023-08-24 05:24:32,425 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:24:32,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 994 places, 856 transitions, 6749 flow [2023-08-24 05:24:33,197 INFO L124 PetriNetUnfolderBase]: 70/1682 cut-off events. [2023-08-24 05:24:33,197 INFO L125 PetriNetUnfolderBase]: For 57086/57086 co-relation queries the response was YES. [2023-08-24 05:24:33,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4305 conditions, 1682 events. 70/1682 cut-off events. For 57086/57086 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3644 event pairs, 0 based on Foata normal form. 0/1473 useless extension candidates. Maximal degree in co-relation 4196. Up to 140 conditions per place. [2023-08-24 05:24:33,274 INFO L82 GeneralOperation]: Start removeDead. Operand has 994 places, 856 transitions, 6749 flow [2023-08-24 05:24:33,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 989 places, 850 transitions, 6737 flow [2023-08-24 05:24:33,277 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:24:33,277 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 989 places, 850 transitions, 6737 flow [2023-08-24 05:24:33,278 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 989 places, 850 transitions, 6737 flow [2023-08-24 05:24:33,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 989 places, 850 transitions, 6737 flow [2023-08-24 05:24:34,101 INFO L124 PetriNetUnfolderBase]: 0/1262 cut-off events. [2023-08-24 05:24:34,101 INFO L125 PetriNetUnfolderBase]: For 57086/57086 co-relation queries the response was YES. [2023-08-24 05:24:34,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3885 conditions, 1262 events. 0/1262 cut-off events. For 57086/57086 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2068 event pairs, 0 based on Foata normal form. 0/1193 useless extension candidates. Maximal degree in co-relation 0. Up to 70 conditions per place. [2023-08-24 05:24:34,444 INFO L119 LiptonReduction]: Number of co-enabled transitions 629970 [2023-08-24 05:24:44,191 INFO L134 LiptonReduction]: Checked pairs total: 968529 [2023-08-24 05:24:44,191 INFO L136 LiptonReduction]: Total number of compositions: 573 [2023-08-24 05:24:44,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:24:44,192 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:24:44,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:24:44,299 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:24:44,300 INFO L124 PetriNetUnfolderBase]: 0/415 cut-off events. [2023-08-24 05:24:44,300 INFO L125 PetriNetUnfolderBase]: For 57086/57086 co-relation queries the response was YES. [2023-08-24 05:24:44,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:24:44,300 INFO L208 CegarLoopForPetriNet]: trace histogram [69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:24:44,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:24:44,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:24:44,300 INFO L85 PathProgramCache]: Analyzing trace with hash -384284516, now seen corresponding path program 1 times [2023-08-24 05:24:44,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:24:44,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202252250] [2023-08-24 05:24:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:24:44,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:24:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:24:44,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:24:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:24:44,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:24:44,480 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:24:44,480 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:24:44,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-08-24 05:24:44,480 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:24:44,481 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:24:44,481 WARN L233 ceAbstractionStarter]: 69 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:24:44,481 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 70 thread instances. [2023-08-24 05:24:44,628 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:24:44,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1008 places, 868 transitions, 6916 flow [2023-08-24 05:24:45,548 INFO L124 PetriNetUnfolderBase]: 71/1706 cut-off events. [2023-08-24 05:24:45,548 INFO L125 PetriNetUnfolderBase]: For 59570/59570 co-relation queries the response was YES. [2023-08-24 05:24:45,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4402 conditions, 1706 events. 71/1706 cut-off events. For 59570/59570 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3644 event pairs, 0 based on Foata normal form. 0/1494 useless extension candidates. Maximal degree in co-relation 4292. Up to 142 conditions per place. [2023-08-24 05:24:45,629 INFO L82 GeneralOperation]: Start removeDead. Operand has 1008 places, 868 transitions, 6916 flow [2023-08-24 05:24:45,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1003 places, 862 transitions, 6904 flow [2023-08-24 05:24:45,633 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:24:45,633 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1003 places, 862 transitions, 6904 flow [2023-08-24 05:24:45,633 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1003 places, 862 transitions, 6904 flow [2023-08-24 05:24:45,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1003 places, 862 transitions, 6904 flow [2023-08-24 05:24:46,488 INFO L124 PetriNetUnfolderBase]: 0/1280 cut-off events. [2023-08-24 05:24:46,488 INFO L125 PetriNetUnfolderBase]: For 59570/59570 co-relation queries the response was YES. [2023-08-24 05:24:46,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3976 conditions, 1280 events. 0/1280 cut-off events. For 59570/59570 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2054 event pairs, 0 based on Foata normal form. 0/1210 useless extension candidates. Maximal degree in co-relation 0. Up to 71 conditions per place. [2023-08-24 05:24:46,670 INFO L119 LiptonReduction]: Number of co-enabled transitions 648340 [2023-08-24 05:24:56,552 INFO L134 LiptonReduction]: Checked pairs total: 1010161 [2023-08-24 05:24:56,552 INFO L136 LiptonReduction]: Total number of compositions: 581 [2023-08-24 05:24:56,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:24:56,553 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:24:56,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:24:56,674 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:24:56,674 INFO L124 PetriNetUnfolderBase]: 0/421 cut-off events. [2023-08-24 05:24:56,674 INFO L125 PetriNetUnfolderBase]: For 59570/59570 co-relation queries the response was YES. [2023-08-24 05:24:56,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:24:56,674 INFO L208 CegarLoopForPetriNet]: trace histogram [70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:24:56,675 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:24:56,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:24:56,675 INFO L85 PathProgramCache]: Analyzing trace with hash 193297747, now seen corresponding path program 1 times [2023-08-24 05:24:56,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:24:56,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736931663] [2023-08-24 05:24:56,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:24:56,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:24:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:24:56,820 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:24:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:24:56,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:24:56,909 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:24:56,909 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:24:56,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-08-24 05:24:56,909 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:24:56,910 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:24:56,910 WARN L233 ceAbstractionStarter]: 70 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:24:56,910 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 71 thread instances. [2023-08-24 05:24:57,010 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:24:57,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1022 places, 880 transitions, 7085 flow [2023-08-24 05:24:57,935 INFO L124 PetriNetUnfolderBase]: 72/1730 cut-off events. [2023-08-24 05:24:57,935 INFO L125 PetriNetUnfolderBase]: For 62125/62125 co-relation queries the response was YES. [2023-08-24 05:24:58,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4500 conditions, 1730 events. 72/1730 cut-off events. For 62125/62125 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3731 event pairs, 0 based on Foata normal form. 0/1515 useless extension candidates. Maximal degree in co-relation 4389. Up to 144 conditions per place. [2023-08-24 05:24:58,015 INFO L82 GeneralOperation]: Start removeDead. Operand has 1022 places, 880 transitions, 7085 flow [2023-08-24 05:24:58,018 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1017 places, 874 transitions, 7073 flow [2023-08-24 05:24:58,018 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:24:58,018 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1017 places, 874 transitions, 7073 flow [2023-08-24 05:24:58,019 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1017 places, 874 transitions, 7073 flow [2023-08-24 05:24:58,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1017 places, 874 transitions, 7073 flow [2023-08-24 05:24:58,826 INFO L124 PetriNetUnfolderBase]: 0/1298 cut-off events. [2023-08-24 05:24:58,826 INFO L125 PetriNetUnfolderBase]: For 62125/62125 co-relation queries the response was YES. [2023-08-24 05:24:58,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4068 conditions, 1298 events. 0/1298 cut-off events. For 62125/62125 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2107 event pairs, 0 based on Foata normal form. 0/1227 useless extension candidates. Maximal degree in co-relation 0. Up to 72 conditions per place. [2023-08-24 05:24:59,023 INFO L119 LiptonReduction]: Number of co-enabled transitions 666974 [2023-08-24 05:25:09,068 INFO L134 LiptonReduction]: Checked pairs total: 1006390 [2023-08-24 05:25:09,068 INFO L136 LiptonReduction]: Total number of compositions: 589 [2023-08-24 05:25:09,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:25:09,069 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:25:09,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:25:09,186 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:25:09,187 INFO L124 PetriNetUnfolderBase]: 0/427 cut-off events. [2023-08-24 05:25:09,187 INFO L125 PetriNetUnfolderBase]: For 62125/62125 co-relation queries the response was YES. [2023-08-24 05:25:09,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:25:09,187 INFO L208 CegarLoopForPetriNet]: trace histogram [71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:25:09,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:25:09,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:25:09,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1077722578, now seen corresponding path program 1 times [2023-08-24 05:25:09,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:25:09,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096817368] [2023-08-24 05:25:09,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:25:09,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:25:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:25:09,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:25:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:25:09,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:25:09,418 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:25:09,418 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:25:09,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-08-24 05:25:09,419 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:25:09,419 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:25:09,419 WARN L233 ceAbstractionStarter]: 71 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:25:09,419 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 72 thread instances. [2023-08-24 05:25:09,592 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:25:09,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1036 places, 892 transitions, 7256 flow [2023-08-24 05:25:10,664 INFO L124 PetriNetUnfolderBase]: 73/1754 cut-off events. [2023-08-24 05:25:10,664 INFO L125 PetriNetUnfolderBase]: For 64752/64752 co-relation queries the response was YES. [2023-08-24 05:25:10,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4599 conditions, 1754 events. 73/1754 cut-off events. For 64752/64752 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3783 event pairs, 0 based on Foata normal form. 0/1536 useless extension candidates. Maximal degree in co-relation 4487. Up to 146 conditions per place. [2023-08-24 05:25:10,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 1036 places, 892 transitions, 7256 flow [2023-08-24 05:25:10,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1031 places, 886 transitions, 7244 flow [2023-08-24 05:25:10,745 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:25:10,745 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1031 places, 886 transitions, 7244 flow [2023-08-24 05:25:10,746 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1031 places, 886 transitions, 7244 flow [2023-08-24 05:25:10,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1031 places, 886 transitions, 7244 flow [2023-08-24 05:25:11,591 INFO L124 PetriNetUnfolderBase]: 0/1316 cut-off events. [2023-08-24 05:25:11,592 INFO L125 PetriNetUnfolderBase]: For 64752/64752 co-relation queries the response was YES. [2023-08-24 05:25:11,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4161 conditions, 1316 events. 0/1316 cut-off events. For 64752/64752 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2133 event pairs, 0 based on Foata normal form. 0/1244 useless extension candidates. Maximal degree in co-relation 0. Up to 73 conditions per place. [2023-08-24 05:25:11,788 INFO L119 LiptonReduction]: Number of co-enabled transitions 685872 [2023-08-24 05:25:21,903 INFO L134 LiptonReduction]: Checked pairs total: 1069393 [2023-08-24 05:25:21,903 INFO L136 LiptonReduction]: Total number of compositions: 597 [2023-08-24 05:25:21,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:25:21,904 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:25:21,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:25:22,063 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:25:22,063 INFO L124 PetriNetUnfolderBase]: 0/433 cut-off events. [2023-08-24 05:25:22,063 INFO L125 PetriNetUnfolderBase]: For 64752/64752 co-relation queries the response was YES. [2023-08-24 05:25:22,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:25:22,063 INFO L208 CegarLoopForPetriNet]: trace histogram [72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:25:22,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:25:22,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:25:22,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1080785504, now seen corresponding path program 1 times [2023-08-24 05:25:22,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:25:22,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577782340] [2023-08-24 05:25:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:25:22,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:25:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:25:22,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:25:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:25:22,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:25:22,251 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:25:22,251 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:25:22,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-08-24 05:25:22,252 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:25:22,252 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:25:22,252 WARN L233 ceAbstractionStarter]: 72 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:25:22,252 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 73 thread instances. [2023-08-24 05:25:22,358 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:25:22,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1050 places, 904 transitions, 7429 flow [2023-08-24 05:25:23,468 INFO L124 PetriNetUnfolderBase]: 74/1778 cut-off events. [2023-08-24 05:25:23,468 INFO L125 PetriNetUnfolderBase]: For 67452/67452 co-relation queries the response was YES. [2023-08-24 05:25:23,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4699 conditions, 1778 events. 74/1778 cut-off events. For 67452/67452 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3831 event pairs, 0 based on Foata normal form. 0/1557 useless extension candidates. Maximal degree in co-relation 4586. Up to 148 conditions per place. [2023-08-24 05:25:23,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 1050 places, 904 transitions, 7429 flow [2023-08-24 05:25:23,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1045 places, 898 transitions, 7417 flow [2023-08-24 05:25:23,552 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:25:23,552 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1045 places, 898 transitions, 7417 flow [2023-08-24 05:25:23,552 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1045 places, 898 transitions, 7417 flow [2023-08-24 05:25:23,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1045 places, 898 transitions, 7417 flow [2023-08-24 05:25:24,357 INFO L124 PetriNetUnfolderBase]: 0/1334 cut-off events. [2023-08-24 05:25:24,358 INFO L125 PetriNetUnfolderBase]: For 67452/67452 co-relation queries the response was YES. [2023-08-24 05:25:24,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4255 conditions, 1334 events. 0/1334 cut-off events. For 67452/67452 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2157 event pairs, 0 based on Foata normal form. 0/1261 useless extension candidates. Maximal degree in co-relation 0. Up to 74 conditions per place. [2023-08-24 05:25:24,711 INFO L119 LiptonReduction]: Number of co-enabled transitions 705034 [2023-08-24 05:25:34,907 INFO L134 LiptonReduction]: Checked pairs total: 1104899 [2023-08-24 05:25:34,907 INFO L136 LiptonReduction]: Total number of compositions: 605 [2023-08-24 05:25:34,908 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:25:34,908 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:25:34,908 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:25:35,030 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:25:35,030 INFO L124 PetriNetUnfolderBase]: 0/439 cut-off events. [2023-08-24 05:25:35,030 INFO L125 PetriNetUnfolderBase]: For 67452/67452 co-relation queries the response was YES. [2023-08-24 05:25:35,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:25:35,030 INFO L208 CegarLoopForPetriNet]: trace histogram [73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:25:35,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:25:35,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:25:35,031 INFO L85 PathProgramCache]: Analyzing trace with hash -743556995, now seen corresponding path program 1 times [2023-08-24 05:25:35,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:25:35,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707518338] [2023-08-24 05:25:35,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:25:35,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:25:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:25:35,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:25:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:25:35,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:25:35,251 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:25:35,251 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:25:35,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-08-24 05:25:35,252 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:25:35,252 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:25:35,252 WARN L233 ceAbstractionStarter]: 73 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:25:35,252 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 74 thread instances. [2023-08-24 05:25:35,354 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:25:35,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1064 places, 916 transitions, 7604 flow [2023-08-24 05:25:36,237 INFO L124 PetriNetUnfolderBase]: 75/1802 cut-off events. [2023-08-24 05:25:36,238 INFO L125 PetriNetUnfolderBase]: For 70226/70226 co-relation queries the response was YES. [2023-08-24 05:25:36,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4800 conditions, 1802 events. 75/1802 cut-off events. For 70226/70226 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3904 event pairs, 0 based on Foata normal form. 0/1578 useless extension candidates. Maximal degree in co-relation 4686. Up to 150 conditions per place. [2023-08-24 05:25:36,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 1064 places, 916 transitions, 7604 flow [2023-08-24 05:25:36,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1059 places, 910 transitions, 7592 flow [2023-08-24 05:25:36,523 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:25:36,523 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1059 places, 910 transitions, 7592 flow [2023-08-24 05:25:36,523 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1059 places, 910 transitions, 7592 flow [2023-08-24 05:25:36,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1059 places, 910 transitions, 7592 flow [2023-08-24 05:25:37,385 INFO L124 PetriNetUnfolderBase]: 0/1352 cut-off events. [2023-08-24 05:25:37,385 INFO L125 PetriNetUnfolderBase]: For 70226/70226 co-relation queries the response was YES. [2023-08-24 05:25:37,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4350 conditions, 1352 events. 0/1352 cut-off events. For 70226/70226 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2209 event pairs, 0 based on Foata normal form. 0/1278 useless extension candidates. Maximal degree in co-relation 0. Up to 75 conditions per place. [2023-08-24 05:25:37,601 INFO L119 LiptonReduction]: Number of co-enabled transitions 724460 [2023-08-24 05:25:48,200 INFO L134 LiptonReduction]: Checked pairs total: 1143135 [2023-08-24 05:25:48,200 INFO L136 LiptonReduction]: Total number of compositions: 613 [2023-08-24 05:25:48,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:25:48,201 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:25:48,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:25:48,325 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:25:48,325 INFO L124 PetriNetUnfolderBase]: 0/445 cut-off events. [2023-08-24 05:25:48,325 INFO L125 PetriNetUnfolderBase]: For 70226/70226 co-relation queries the response was YES. [2023-08-24 05:25:48,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:25:48,325 INFO L208 CegarLoopForPetriNet]: trace histogram [74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:25:48,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:25:48,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:25:48,326 INFO L85 PathProgramCache]: Analyzing trace with hash -270386547, now seen corresponding path program 1 times [2023-08-24 05:25:48,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:25:48,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130411317] [2023-08-24 05:25:48,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:25:48,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:25:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:25:48,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:25:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:25:48,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:25:48,548 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:25:48,548 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:25:48,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-08-24 05:25:48,548 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:25:48,549 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:25:48,549 WARN L233 ceAbstractionStarter]: 74 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:25:48,549 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 75 thread instances. [2023-08-24 05:25:48,686 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:25:48,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1078 places, 928 transitions, 7781 flow [2023-08-24 05:25:49,667 INFO L124 PetriNetUnfolderBase]: 76/1826 cut-off events. [2023-08-24 05:25:49,668 INFO L125 PetriNetUnfolderBase]: For 73075/73075 co-relation queries the response was YES. [2023-08-24 05:25:49,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4902 conditions, 1826 events. 76/1826 cut-off events. For 73075/73075 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3951 event pairs, 0 based on Foata normal form. 0/1599 useless extension candidates. Maximal degree in co-relation 4787. Up to 152 conditions per place. [2023-08-24 05:25:49,764 INFO L82 GeneralOperation]: Start removeDead. Operand has 1078 places, 928 transitions, 7781 flow [2023-08-24 05:25:49,767 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1073 places, 922 transitions, 7769 flow [2023-08-24 05:25:49,767 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:25:49,768 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1073 places, 922 transitions, 7769 flow [2023-08-24 05:25:49,768 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1073 places, 922 transitions, 7769 flow [2023-08-24 05:25:49,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1073 places, 922 transitions, 7769 flow [2023-08-24 05:25:50,510 INFO L124 PetriNetUnfolderBase]: 0/1370 cut-off events. [2023-08-24 05:25:50,510 INFO L125 PetriNetUnfolderBase]: For 73075/73075 co-relation queries the response was YES. [2023-08-24 05:25:50,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4446 conditions, 1370 events. 0/1370 cut-off events. For 73075/73075 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2238 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 0. Up to 76 conditions per place. [2023-08-24 05:25:50,735 INFO L119 LiptonReduction]: Number of co-enabled transitions 744150 [2023-08-24 05:26:01,186 INFO L134 LiptonReduction]: Checked pairs total: 1158540 [2023-08-24 05:26:01,186 INFO L136 LiptonReduction]: Total number of compositions: 621 [2023-08-24 05:26:01,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:26:01,187 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:26:01,187 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:26:01,316 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:26:01,316 INFO L124 PetriNetUnfolderBase]: 0/451 cut-off events. [2023-08-24 05:26:01,316 INFO L125 PetriNetUnfolderBase]: For 73075/73075 co-relation queries the response was YES. [2023-08-24 05:26:01,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:26:01,316 INFO L208 CegarLoopForPetriNet]: trace histogram [75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:26:01,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:26:01,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:26:01,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1400331513, now seen corresponding path program 1 times [2023-08-24 05:26:01,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:26:01,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920879283] [2023-08-24 05:26:01,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:26:01,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:26:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:26:01,430 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:26:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:26:01,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:26:01,585 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:26:01,585 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:26:01,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-08-24 05:26:01,585 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:26:01,585 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:26:01,586 WARN L233 ceAbstractionStarter]: 75 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:26:01,586 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 76 thread instances. [2023-08-24 05:26:01,691 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:26:01,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1092 places, 940 transitions, 7960 flow [2023-08-24 05:26:02,719 INFO L124 PetriNetUnfolderBase]: 77/1850 cut-off events. [2023-08-24 05:26:02,719 INFO L125 PetriNetUnfolderBase]: For 76000/76000 co-relation queries the response was YES. [2023-08-24 05:26:02,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5005 conditions, 1850 events. 77/1850 cut-off events. For 76000/76000 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3977 event pairs, 0 based on Foata normal form. 0/1620 useless extension candidates. Maximal degree in co-relation 4889. Up to 154 conditions per place. [2023-08-24 05:26:02,809 INFO L82 GeneralOperation]: Start removeDead. Operand has 1092 places, 940 transitions, 7960 flow [2023-08-24 05:26:02,812 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1087 places, 934 transitions, 7948 flow [2023-08-24 05:26:02,813 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:26:02,813 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1087 places, 934 transitions, 7948 flow [2023-08-24 05:26:02,813 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1087 places, 934 transitions, 7948 flow [2023-08-24 05:26:02,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1087 places, 934 transitions, 7948 flow [2023-08-24 05:26:03,689 INFO L124 PetriNetUnfolderBase]: 0/1388 cut-off events. [2023-08-24 05:26:03,689 INFO L125 PetriNetUnfolderBase]: For 76000/76000 co-relation queries the response was YES. [2023-08-24 05:26:03,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4543 conditions, 1388 events. 0/1388 cut-off events. For 76000/76000 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2242 event pairs, 0 based on Foata normal form. 0/1312 useless extension candidates. Maximal degree in co-relation 0. Up to 77 conditions per place. [2023-08-24 05:26:03,917 INFO L119 LiptonReduction]: Number of co-enabled transitions 764104 [2023-08-24 05:26:14,346 INFO L134 LiptonReduction]: Checked pairs total: 1187996 [2023-08-24 05:26:14,346 INFO L136 LiptonReduction]: Total number of compositions: 629 [2023-08-24 05:26:14,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:26:14,347 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:26:14,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:26:14,479 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:26:14,480 INFO L124 PetriNetUnfolderBase]: 0/457 cut-off events. [2023-08-24 05:26:14,480 INFO L125 PetriNetUnfolderBase]: For 76000/76000 co-relation queries the response was YES. [2023-08-24 05:26:14,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:26:14,480 INFO L208 CegarLoopForPetriNet]: trace histogram [76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:26:14,480 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:26:14,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:26:14,480 INFO L85 PathProgramCache]: Analyzing trace with hash 813793018, now seen corresponding path program 1 times [2023-08-24 05:26:14,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:26:14,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10080341] [2023-08-24 05:26:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:26:14,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:26:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:26:14,585 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:26:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:26:14,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:26:14,701 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:26:14,701 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:26:14,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-08-24 05:26:14,701 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:26:14,701 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:26:14,701 WARN L233 ceAbstractionStarter]: 76 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:26:14,701 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 77 thread instances. [2023-08-24 05:26:14,809 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:26:14,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1106 places, 952 transitions, 8141 flow [2023-08-24 05:26:15,788 INFO L124 PetriNetUnfolderBase]: 78/1874 cut-off events. [2023-08-24 05:26:15,789 INFO L125 PetriNetUnfolderBase]: For 79002/79002 co-relation queries the response was YES. [2023-08-24 05:26:15,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5109 conditions, 1874 events. 78/1874 cut-off events. For 79002/79002 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4042 event pairs, 0 based on Foata normal form. 0/1641 useless extension candidates. Maximal degree in co-relation 4992. Up to 156 conditions per place. [2023-08-24 05:26:15,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 1106 places, 952 transitions, 8141 flow [2023-08-24 05:26:15,900 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1101 places, 946 transitions, 8129 flow [2023-08-24 05:26:15,900 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:26:15,900 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1101 places, 946 transitions, 8129 flow [2023-08-24 05:26:15,900 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1101 places, 946 transitions, 8129 flow [2023-08-24 05:26:15,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1101 places, 946 transitions, 8129 flow [2023-08-24 05:26:16,789 INFO L124 PetriNetUnfolderBase]: 0/1406 cut-off events. [2023-08-24 05:26:16,789 INFO L125 PetriNetUnfolderBase]: For 79002/79002 co-relation queries the response was YES. [2023-08-24 05:26:16,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4641 conditions, 1406 events. 0/1406 cut-off events. For 79002/79002 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2280 event pairs, 0 based on Foata normal form. 0/1329 useless extension candidates. Maximal degree in co-relation 0. Up to 78 conditions per place. [2023-08-24 05:26:17,027 INFO L119 LiptonReduction]: Number of co-enabled transitions 784322 [2023-08-24 05:26:27,667 INFO L134 LiptonReduction]: Checked pairs total: 1199381 [2023-08-24 05:26:27,668 INFO L136 LiptonReduction]: Total number of compositions: 637 [2023-08-24 05:26:27,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:26:27,668 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:26:27,669 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:26:27,806 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:26:27,807 INFO L124 PetriNetUnfolderBase]: 0/463 cut-off events. [2023-08-24 05:26:27,807 INFO L125 PetriNetUnfolderBase]: For 79002/79002 co-relation queries the response was YES. [2023-08-24 05:26:27,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:26:27,807 INFO L208 CegarLoopForPetriNet]: trace histogram [77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:26:27,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:26:27,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:26:27,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1590213705, now seen corresponding path program 1 times [2023-08-24 05:26:27,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:26:27,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653735364] [2023-08-24 05:26:27,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:26:27,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:26:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:26:27,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:26:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:26:28,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:26:28,060 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:26:28,060 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:26:28,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-08-24 05:26:28,060 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:26:28,060 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:26:28,060 WARN L233 ceAbstractionStarter]: 77 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:26:28,060 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 78 thread instances. [2023-08-24 05:26:28,169 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:26:28,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1120 places, 964 transitions, 8324 flow [2023-08-24 05:26:29,228 INFO L124 PetriNetUnfolderBase]: 79/1898 cut-off events. [2023-08-24 05:26:29,229 INFO L125 PetriNetUnfolderBase]: For 82082/82082 co-relation queries the response was YES. [2023-08-24 05:26:29,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5214 conditions, 1898 events. 79/1898 cut-off events. For 82082/82082 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4130 event pairs, 0 based on Foata normal form. 0/1662 useless extension candidates. Maximal degree in co-relation 5096. Up to 158 conditions per place. [2023-08-24 05:26:29,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 1120 places, 964 transitions, 8324 flow [2023-08-24 05:26:29,329 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1115 places, 958 transitions, 8312 flow [2023-08-24 05:26:29,329 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:26:29,329 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1115 places, 958 transitions, 8312 flow [2023-08-24 05:26:29,329 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1115 places, 958 transitions, 8312 flow [2023-08-24 05:26:29,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 958 transitions, 8312 flow [2023-08-24 05:26:30,236 INFO L124 PetriNetUnfolderBase]: 0/1424 cut-off events. [2023-08-24 05:26:30,236 INFO L125 PetriNetUnfolderBase]: For 82082/82082 co-relation queries the response was YES. [2023-08-24 05:26:30,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4740 conditions, 1424 events. 0/1424 cut-off events. For 82082/82082 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2338 event pairs, 0 based on Foata normal form. 0/1346 useless extension candidates. Maximal degree in co-relation 0. Up to 79 conditions per place. [2023-08-24 05:26:30,481 INFO L119 LiptonReduction]: Number of co-enabled transitions 804804 [2023-08-24 05:26:41,263 INFO L134 LiptonReduction]: Checked pairs total: 1233519 [2023-08-24 05:26:41,264 INFO L136 LiptonReduction]: Total number of compositions: 645 [2023-08-24 05:26:41,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:26:41,264 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:26:41,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:26:41,406 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:26:41,406 INFO L124 PetriNetUnfolderBase]: 0/469 cut-off events. [2023-08-24 05:26:41,406 INFO L125 PetriNetUnfolderBase]: For 82082/82082 co-relation queries the response was YES. [2023-08-24 05:26:41,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:26:41,407 INFO L208 CegarLoopForPetriNet]: trace histogram [78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:26:41,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:26:41,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:26:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1353142297, now seen corresponding path program 1 times [2023-08-24 05:26:41,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:26:41,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629527562] [2023-08-24 05:26:41,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:26:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:26:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:26:41,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:26:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:26:41,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:26:41,662 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:26:41,662 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:26:41,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-08-24 05:26:41,662 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:26:41,663 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:26:41,663 WARN L233 ceAbstractionStarter]: 78 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:26:41,663 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 79 thread instances. [2023-08-24 05:26:41,774 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:26:41,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1134 places, 976 transitions, 8509 flow [2023-08-24 05:26:42,780 INFO L124 PetriNetUnfolderBase]: 80/1922 cut-off events. [2023-08-24 05:26:42,780 INFO L125 PetriNetUnfolderBase]: For 85241/85241 co-relation queries the response was YES. [2023-08-24 05:26:42,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5320 conditions, 1922 events. 80/1922 cut-off events. For 85241/85241 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4170 event pairs, 0 based on Foata normal form. 0/1683 useless extension candidates. Maximal degree in co-relation 5201. Up to 160 conditions per place. [2023-08-24 05:26:42,902 INFO L82 GeneralOperation]: Start removeDead. Operand has 1134 places, 976 transitions, 8509 flow [2023-08-24 05:26:42,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1129 places, 970 transitions, 8497 flow [2023-08-24 05:26:42,907 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:26:42,907 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1129 places, 970 transitions, 8497 flow [2023-08-24 05:26:42,907 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1129 places, 970 transitions, 8497 flow [2023-08-24 05:26:42,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1129 places, 970 transitions, 8497 flow [2023-08-24 05:26:43,775 INFO L124 PetriNetUnfolderBase]: 0/1442 cut-off events. [2023-08-24 05:26:43,775 INFO L125 PetriNetUnfolderBase]: For 85241/85241 co-relation queries the response was YES. [2023-08-24 05:26:43,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4840 conditions, 1442 events. 0/1442 cut-off events. For 85241/85241 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2360 event pairs, 0 based on Foata normal form. 0/1363 useless extension candidates. Maximal degree in co-relation 0. Up to 80 conditions per place. [2023-08-24 05:26:44,304 INFO L119 LiptonReduction]: Number of co-enabled transitions 825550 [2023-08-24 05:26:55,221 INFO L134 LiptonReduction]: Checked pairs total: 1299240 [2023-08-24 05:26:55,221 INFO L136 LiptonReduction]: Total number of compositions: 653 [2023-08-24 05:26:55,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:26:55,222 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:26:55,222 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:26:55,370 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:26:55,370 INFO L124 PetriNetUnfolderBase]: 0/475 cut-off events. [2023-08-24 05:26:55,370 INFO L125 PetriNetUnfolderBase]: For 85241/85241 co-relation queries the response was YES. [2023-08-24 05:26:55,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:26:55,370 INFO L208 CegarLoopForPetriNet]: trace histogram [79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:26:55,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:26:55,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:26:55,371 INFO L85 PathProgramCache]: Analyzing trace with hash -814537784, now seen corresponding path program 1 times [2023-08-24 05:26:55,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:26:55,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073318303] [2023-08-24 05:26:55,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:26:55,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:26:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:26:55,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:26:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:26:55,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:26:55,625 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:26:55,625 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:26:55,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-08-24 05:26:55,625 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:26:55,625 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:26:55,625 WARN L233 ceAbstractionStarter]: 79 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:26:55,625 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 80 thread instances. [2023-08-24 05:26:55,736 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:26:55,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1148 places, 988 transitions, 8696 flow [2023-08-24 05:26:56,734 INFO L124 PetriNetUnfolderBase]: 81/1946 cut-off events. [2023-08-24 05:26:56,734 INFO L125 PetriNetUnfolderBase]: For 88480/88480 co-relation queries the response was YES. [2023-08-24 05:26:56,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5427 conditions, 1946 events. 81/1946 cut-off events. For 88480/88480 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4220 event pairs, 0 based on Foata normal form. 0/1704 useless extension candidates. Maximal degree in co-relation 5307. Up to 162 conditions per place. [2023-08-24 05:26:56,856 INFO L82 GeneralOperation]: Start removeDead. Operand has 1148 places, 988 transitions, 8696 flow [2023-08-24 05:26:56,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1143 places, 982 transitions, 8684 flow [2023-08-24 05:26:56,861 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:26:56,861 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1143 places, 982 transitions, 8684 flow [2023-08-24 05:26:56,861 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1143 places, 982 transitions, 8684 flow [2023-08-24 05:26:56,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1143 places, 982 transitions, 8684 flow [2023-08-24 05:26:57,622 INFO L124 PetriNetUnfolderBase]: 0/1460 cut-off events. [2023-08-24 05:26:57,622 INFO L125 PetriNetUnfolderBase]: For 88480/88480 co-relation queries the response was YES. [2023-08-24 05:26:57,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4941 conditions, 1460 events. 0/1460 cut-off events. For 88480/88480 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2394 event pairs, 0 based on Foata normal form. 0/1380 useless extension candidates. Maximal degree in co-relation 0. Up to 81 conditions per place. [2023-08-24 05:26:57,920 INFO L119 LiptonReduction]: Number of co-enabled transitions 846560 [2023-08-24 05:27:09,173 INFO L134 LiptonReduction]: Checked pairs total: 1321416 [2023-08-24 05:27:09,173 INFO L136 LiptonReduction]: Total number of compositions: 661 [2023-08-24 05:27:09,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:27:09,174 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:27:09,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:27:09,329 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:27:09,329 INFO L124 PetriNetUnfolderBase]: 0/481 cut-off events. [2023-08-24 05:27:09,329 INFO L125 PetriNetUnfolderBase]: For 88480/88480 co-relation queries the response was YES. [2023-08-24 05:27:09,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:27:09,329 INFO L208 CegarLoopForPetriNet]: trace histogram [80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:27:09,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:27:09,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:27:09,330 INFO L85 PathProgramCache]: Analyzing trace with hash 663537172, now seen corresponding path program 1 times [2023-08-24 05:27:09,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:27:09,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097831886] [2023-08-24 05:27:09,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:27:09,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:27:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:27:09,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:27:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:27:09,631 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:27:09,631 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:27:09,631 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:27:09,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2023-08-24 05:27:09,631 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:27:09,632 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:27:09,632 WARN L233 ceAbstractionStarter]: 80 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:27:09,632 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 81 thread instances. [2023-08-24 05:27:09,763 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:27:09,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1162 places, 1000 transitions, 8885 flow [2023-08-24 05:27:10,858 INFO L124 PetriNetUnfolderBase]: 82/1970 cut-off events. [2023-08-24 05:27:10,858 INFO L125 PetriNetUnfolderBase]: For 91800/91800 co-relation queries the response was YES. [2023-08-24 05:27:10,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5535 conditions, 1970 events. 82/1970 cut-off events. For 91800/91800 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4291 event pairs, 0 based on Foata normal form. 0/1725 useless extension candidates. Maximal degree in co-relation 5414. Up to 164 conditions per place. [2023-08-24 05:27:10,986 INFO L82 GeneralOperation]: Start removeDead. Operand has 1162 places, 1000 transitions, 8885 flow [2023-08-24 05:27:10,991 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1157 places, 994 transitions, 8873 flow [2023-08-24 05:27:10,991 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:27:10,991 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1157 places, 994 transitions, 8873 flow [2023-08-24 05:27:10,991 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1157 places, 994 transitions, 8873 flow [2023-08-24 05:27:10,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1157 places, 994 transitions, 8873 flow [2023-08-24 05:27:11,785 INFO L124 PetriNetUnfolderBase]: 0/1478 cut-off events. [2023-08-24 05:27:11,785 INFO L125 PetriNetUnfolderBase]: For 91800/91800 co-relation queries the response was YES. [2023-08-24 05:27:11,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5043 conditions, 1478 events. 0/1478 cut-off events. For 91800/91800 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2433 event pairs, 0 based on Foata normal form. 0/1397 useless extension candidates. Maximal degree in co-relation 0. Up to 82 conditions per place. [2023-08-24 05:27:12,102 INFO L119 LiptonReduction]: Number of co-enabled transitions 867834 [2023-08-24 05:27:23,535 INFO L134 LiptonReduction]: Checked pairs total: 1382825 [2023-08-24 05:27:23,535 INFO L136 LiptonReduction]: Total number of compositions: 669 [2023-08-24 05:27:23,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:27:23,536 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:27:23,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:27:23,691 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:27:23,691 INFO L124 PetriNetUnfolderBase]: 0/487 cut-off events. [2023-08-24 05:27:23,691 INFO L125 PetriNetUnfolderBase]: For 91800/91800 co-relation queries the response was YES. [2023-08-24 05:27:23,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:27:23,691 INFO L208 CegarLoopForPetriNet]: trace histogram [81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:27:23,691 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:27:23,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:27:23,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1447674805, now seen corresponding path program 1 times [2023-08-24 05:27:23,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:27:23,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371170875] [2023-08-24 05:27:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:27:23,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:27:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:27:23,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:27:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:27:23,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:27:23,947 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:27:23,947 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:27:23,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2023-08-24 05:27:23,948 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:27:23,948 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:27:23,948 WARN L233 ceAbstractionStarter]: 81 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:27:23,948 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 82 thread instances. [2023-08-24 05:27:24,065 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:27:24,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1176 places, 1012 transitions, 9076 flow [2023-08-24 05:27:25,164 INFO L124 PetriNetUnfolderBase]: 83/1994 cut-off events. [2023-08-24 05:27:25,164 INFO L125 PetriNetUnfolderBase]: For 95202/95202 co-relation queries the response was YES. [2023-08-24 05:27:25,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5644 conditions, 1994 events. 83/1994 cut-off events. For 95202/95202 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4324 event pairs, 0 based on Foata normal form. 0/1746 useless extension candidates. Maximal degree in co-relation 5522. Up to 166 conditions per place. [2023-08-24 05:27:25,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 1176 places, 1012 transitions, 9076 flow [2023-08-24 05:27:25,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1171 places, 1006 transitions, 9064 flow [2023-08-24 05:27:25,301 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:27:25,301 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1171 places, 1006 transitions, 9064 flow [2023-08-24 05:27:25,301 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1171 places, 1006 transitions, 9064 flow [2023-08-24 05:27:25,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1171 places, 1006 transitions, 9064 flow [2023-08-24 05:27:26,125 INFO L124 PetriNetUnfolderBase]: 0/1496 cut-off events. [2023-08-24 05:27:26,125 INFO L125 PetriNetUnfolderBase]: For 95202/95202 co-relation queries the response was YES. [2023-08-24 05:27:26,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5146 conditions, 1496 events. 0/1496 cut-off events. For 95202/95202 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2439 event pairs, 0 based on Foata normal form. 0/1414 useless extension candidates. Maximal degree in co-relation 0. Up to 83 conditions per place. [2023-08-24 05:27:26,698 INFO L119 LiptonReduction]: Number of co-enabled transitions 889372 [2023-08-24 05:27:38,103 INFO L134 LiptonReduction]: Checked pairs total: 1390165 [2023-08-24 05:27:38,104 INFO L136 LiptonReduction]: Total number of compositions: 677 [2023-08-24 05:27:38,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:27:38,105 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:27:38,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:27:38,267 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:27:38,267 INFO L124 PetriNetUnfolderBase]: 0/493 cut-off events. [2023-08-24 05:27:38,267 INFO L125 PetriNetUnfolderBase]: For 95202/95202 co-relation queries the response was YES. [2023-08-24 05:27:38,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:27:38,268 INFO L208 CegarLoopForPetriNet]: trace histogram [82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:27:38,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:27:38,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:27:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash 870918465, now seen corresponding path program 1 times [2023-08-24 05:27:38,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:27:38,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209803382] [2023-08-24 05:27:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:27:38,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:27:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:27:38,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:27:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:27:38,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:27:38,536 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:27:38,536 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:27:38,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2023-08-24 05:27:38,536 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:27:38,536 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:27:38,536 WARN L233 ceAbstractionStarter]: 82 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:27:38,536 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 83 thread instances. [2023-08-24 05:27:38,658 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:27:38,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1190 places, 1024 transitions, 9269 flow [2023-08-24 05:27:39,770 INFO L124 PetriNetUnfolderBase]: 84/2018 cut-off events. [2023-08-24 05:27:39,770 INFO L125 PetriNetUnfolderBase]: For 98687/98687 co-relation queries the response was YES. [2023-08-24 05:27:39,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5754 conditions, 2018 events. 84/2018 cut-off events. For 98687/98687 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4353 event pairs, 0 based on Foata normal form. 0/1767 useless extension candidates. Maximal degree in co-relation 5631. Up to 168 conditions per place. [2023-08-24 05:27:39,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 1190 places, 1024 transitions, 9269 flow [2023-08-24 05:27:39,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1185 places, 1018 transitions, 9257 flow [2023-08-24 05:27:39,911 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:27:39,911 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1185 places, 1018 transitions, 9257 flow [2023-08-24 05:27:39,911 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1185 places, 1018 transitions, 9257 flow [2023-08-24 05:27:39,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1185 places, 1018 transitions, 9257 flow [2023-08-24 05:27:40,754 INFO L124 PetriNetUnfolderBase]: 0/1514 cut-off events. [2023-08-24 05:27:40,754 INFO L125 PetriNetUnfolderBase]: For 98687/98687 co-relation queries the response was YES. [2023-08-24 05:27:40,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5250 conditions, 1514 events. 0/1514 cut-off events. For 98687/98687 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2465 event pairs, 0 based on Foata normal form. 0/1431 useless extension candidates. Maximal degree in co-relation 0. Up to 84 conditions per place. [2023-08-24 05:27:41,092 INFO L119 LiptonReduction]: Number of co-enabled transitions 911174 [2023-08-24 05:27:52,863 INFO L134 LiptonReduction]: Checked pairs total: 1373891 [2023-08-24 05:27:52,863 INFO L136 LiptonReduction]: Total number of compositions: 685 [2023-08-24 05:27:52,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:27:52,864 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:27:52,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:27:53,026 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:27:53,026 INFO L124 PetriNetUnfolderBase]: 0/499 cut-off events. [2023-08-24 05:27:53,026 INFO L125 PetriNetUnfolderBase]: For 98687/98687 co-relation queries the response was YES. [2023-08-24 05:27:53,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:27:53,026 INFO L208 CegarLoopForPetriNet]: trace histogram [83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:27:53,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:27:53,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:27:53,026 INFO L85 PathProgramCache]: Analyzing trace with hash -737709211, now seen corresponding path program 1 times [2023-08-24 05:27:53,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:27:53,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328048964] [2023-08-24 05:27:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:27:53,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:27:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:27:53,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:27:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:27:53,299 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:27:53,299 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:27:53,299 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:27:53,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2023-08-24 05:27:53,300 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:27:53,300 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:27:53,300 WARN L233 ceAbstractionStarter]: 83 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:27:53,300 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 84 thread instances. [2023-08-24 05:27:53,414 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:27:53,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1204 places, 1036 transitions, 9464 flow [2023-08-24 05:27:54,542 INFO L124 PetriNetUnfolderBase]: 85/2042 cut-off events. [2023-08-24 05:27:54,543 INFO L125 PetriNetUnfolderBase]: For 102256/102256 co-relation queries the response was YES. [2023-08-24 05:27:54,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5865 conditions, 2042 events. 85/2042 cut-off events. For 102256/102256 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4435 event pairs, 0 based on Foata normal form. 0/1788 useless extension candidates. Maximal degree in co-relation 5741. Up to 170 conditions per place. [2023-08-24 05:27:54,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 1204 places, 1036 transitions, 9464 flow [2023-08-24 05:27:54,687 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1199 places, 1030 transitions, 9452 flow [2023-08-24 05:27:54,687 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:27:54,687 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1199 places, 1030 transitions, 9452 flow [2023-08-24 05:27:54,687 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1199 places, 1030 transitions, 9452 flow [2023-08-24 05:27:54,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1199 places, 1030 transitions, 9452 flow [2023-08-24 05:27:55,622 INFO L124 PetriNetUnfolderBase]: 0/1532 cut-off events. [2023-08-24 05:27:55,622 INFO L125 PetriNetUnfolderBase]: For 102256/102256 co-relation queries the response was YES. [2023-08-24 05:27:55,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5355 conditions, 1532 events. 0/1532 cut-off events. For 102256/102256 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2515 event pairs, 0 based on Foata normal form. 0/1448 useless extension candidates. Maximal degree in co-relation 0. Up to 85 conditions per place. [2023-08-24 05:27:55,927 INFO L119 LiptonReduction]: Number of co-enabled transitions 933240 [2023-08-24 05:28:07,500 INFO L134 LiptonReduction]: Checked pairs total: 1473810 [2023-08-24 05:28:07,500 INFO L136 LiptonReduction]: Total number of compositions: 693 [2023-08-24 05:28:07,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:28:07,501 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:28:07,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:28:07,670 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:28:07,671 INFO L124 PetriNetUnfolderBase]: 0/505 cut-off events. [2023-08-24 05:28:07,671 INFO L125 PetriNetUnfolderBase]: For 102256/102256 co-relation queries the response was YES. [2023-08-24 05:28:07,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:28:07,671 INFO L208 CegarLoopForPetriNet]: trace histogram [84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:28:07,671 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:28:07,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:28:07,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2070230062, now seen corresponding path program 1 times [2023-08-24 05:28:07,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:28:07,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463381738] [2023-08-24 05:28:07,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:28:07,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:28:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:28:07,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:28:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:28:08,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:28:08,111 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:28:08,111 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:28:08,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2023-08-24 05:28:08,111 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:28:08,111 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:28:08,111 WARN L233 ceAbstractionStarter]: 84 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:28:08,112 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 85 thread instances. [2023-08-24 05:28:08,238 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:28:08,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1218 places, 1048 transitions, 9661 flow [2023-08-24 05:28:09,532 INFO L124 PetriNetUnfolderBase]: 86/2066 cut-off events. [2023-08-24 05:28:09,532 INFO L125 PetriNetUnfolderBase]: For 105910/105910 co-relation queries the response was YES. [2023-08-24 05:28:09,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5977 conditions, 2066 events. 86/2066 cut-off events. For 105910/105910 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4487 event pairs, 0 based on Foata normal form. 0/1809 useless extension candidates. Maximal degree in co-relation 5852. Up to 172 conditions per place. [2023-08-24 05:28:09,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 1218 places, 1048 transitions, 9661 flow [2023-08-24 05:28:09,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1213 places, 1042 transitions, 9649 flow [2023-08-24 05:28:09,662 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:28:09,662 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1213 places, 1042 transitions, 9649 flow [2023-08-24 05:28:09,663 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1213 places, 1042 transitions, 9649 flow [2023-08-24 05:28:09,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1213 places, 1042 transitions, 9649 flow [2023-08-24 05:28:10,557 INFO L124 PetriNetUnfolderBase]: 0/1550 cut-off events. [2023-08-24 05:28:10,558 INFO L125 PetriNetUnfolderBase]: For 105910/105910 co-relation queries the response was YES. [2023-08-24 05:28:10,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5461 conditions, 1550 events. 0/1550 cut-off events. For 105910/105910 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2531 event pairs, 0 based on Foata normal form. 0/1465 useless extension candidates. Maximal degree in co-relation 0. Up to 86 conditions per place. [2023-08-24 05:28:10,900 INFO L119 LiptonReduction]: Number of co-enabled transitions 955570 [2023-08-24 05:28:23,567 INFO L134 LiptonReduction]: Checked pairs total: 1469183 [2023-08-24 05:28:23,568 INFO L136 LiptonReduction]: Total number of compositions: 701 [2023-08-24 05:28:23,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:28:23,568 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:28:23,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:28:23,804 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:28:23,804 INFO L124 PetriNetUnfolderBase]: 0/511 cut-off events. [2023-08-24 05:28:23,804 INFO L125 PetriNetUnfolderBase]: For 105910/105910 co-relation queries the response was YES. [2023-08-24 05:28:23,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:28:23,805 INFO L208 CegarLoopForPetriNet]: trace histogram [85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:28:23,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:28:23,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:28:23,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1805524723, now seen corresponding path program 1 times [2023-08-24 05:28:23,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:28:23,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655463996] [2023-08-24 05:28:23,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:28:23,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:28:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:28:23,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:28:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:28:24,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:28:24,100 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:28:24,100 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:28:24,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2023-08-24 05:28:24,100 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:28:24,100 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:28:24,100 WARN L233 ceAbstractionStarter]: 85 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:28:24,100 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 86 thread instances. [2023-08-24 05:28:24,229 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:28:24,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1232 places, 1060 transitions, 9860 flow [2023-08-24 05:28:25,726 INFO L124 PetriNetUnfolderBase]: 87/2090 cut-off events. [2023-08-24 05:28:25,726 INFO L125 PetriNetUnfolderBase]: For 109650/109650 co-relation queries the response was YES. [2023-08-24 05:28:25,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6090 conditions, 2090 events. 87/2090 cut-off events. For 109650/109650 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4489 event pairs, 0 based on Foata normal form. 0/1830 useless extension candidates. Maximal degree in co-relation 5964. Up to 174 conditions per place. [2023-08-24 05:28:25,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 1232 places, 1060 transitions, 9860 flow [2023-08-24 05:28:25,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1227 places, 1054 transitions, 9848 flow [2023-08-24 05:28:25,853 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:28:25,853 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1227 places, 1054 transitions, 9848 flow [2023-08-24 05:28:25,853 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1227 places, 1054 transitions, 9848 flow [2023-08-24 05:28:25,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1227 places, 1054 transitions, 9848 flow [2023-08-24 05:28:26,995 INFO L124 PetriNetUnfolderBase]: 0/1568 cut-off events. [2023-08-24 05:28:26,995 INFO L125 PetriNetUnfolderBase]: For 109650/109650 co-relation queries the response was YES. [2023-08-24 05:28:26,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5568 conditions, 1568 events. 0/1568 cut-off events. For 109650/109650 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2536 event pairs, 0 based on Foata normal form. 0/1482 useless extension candidates. Maximal degree in co-relation 0. Up to 87 conditions per place. [2023-08-24 05:28:27,306 INFO L119 LiptonReduction]: Number of co-enabled transitions 978164 [2023-08-24 05:28:39,471 INFO L134 LiptonReduction]: Checked pairs total: 1550368 [2023-08-24 05:28:39,472 INFO L136 LiptonReduction]: Total number of compositions: 709 [2023-08-24 05:28:39,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:28:39,473 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:28:39,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:28:39,648 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:28:39,649 INFO L124 PetriNetUnfolderBase]: 0/517 cut-off events. [2023-08-24 05:28:39,649 INFO L125 PetriNetUnfolderBase]: For 109650/109650 co-relation queries the response was YES. [2023-08-24 05:28:39,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:28:39,649 INFO L208 CegarLoopForPetriNet]: trace histogram [86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:28:39,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:28:39,649 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:28:39,649 INFO L85 PathProgramCache]: Analyzing trace with hash 950842651, now seen corresponding path program 1 times [2023-08-24 05:28:39,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:28:39,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680031221] [2023-08-24 05:28:39,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:28:39,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:28:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:28:39,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:28:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:28:39,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:28:39,937 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:28:39,937 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:28:39,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2023-08-24 05:28:39,937 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:28:39,937 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:28:39,938 WARN L233 ceAbstractionStarter]: 86 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:28:39,938 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 87 thread instances. [2023-08-24 05:28:40,059 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:28:40,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1246 places, 1072 transitions, 10061 flow [2023-08-24 05:28:41,633 INFO L124 PetriNetUnfolderBase]: 88/2114 cut-off events. [2023-08-24 05:28:41,633 INFO L125 PetriNetUnfolderBase]: For 113477/113477 co-relation queries the response was YES. [2023-08-24 05:28:41,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6204 conditions, 2114 events. 88/2114 cut-off events. For 113477/113477 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4587 event pairs, 0 based on Foata normal form. 0/1851 useless extension candidates. Maximal degree in co-relation 6077. Up to 176 conditions per place. [2023-08-24 05:28:41,760 INFO L82 GeneralOperation]: Start removeDead. Operand has 1246 places, 1072 transitions, 10061 flow [2023-08-24 05:28:41,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1241 places, 1066 transitions, 10049 flow [2023-08-24 05:28:41,764 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:28:41,764 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1241 places, 1066 transitions, 10049 flow [2023-08-24 05:28:41,764 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1241 places, 1066 transitions, 10049 flow [2023-08-24 05:28:41,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1241 places, 1066 transitions, 10049 flow [2023-08-24 05:28:42,973 INFO L124 PetriNetUnfolderBase]: 0/1586 cut-off events. [2023-08-24 05:28:42,973 INFO L125 PetriNetUnfolderBase]: For 113477/113477 co-relation queries the response was YES. [2023-08-24 05:28:42,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5676 conditions, 1586 events. 0/1586 cut-off events. For 113477/113477 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2591 event pairs, 0 based on Foata normal form. 0/1499 useless extension candidates. Maximal degree in co-relation 0. Up to 88 conditions per place. [2023-08-24 05:28:43,375 INFO L119 LiptonReduction]: Number of co-enabled transitions 1001022 [2023-08-24 05:28:55,801 INFO L134 LiptonReduction]: Checked pairs total: 1575663 [2023-08-24 05:28:55,801 INFO L136 LiptonReduction]: Total number of compositions: 717 [2023-08-24 05:28:55,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:28:55,802 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;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:28:55,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:28:55,984 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:28:55,984 INFO L124 PetriNetUnfolderBase]: 0/523 cut-off events. [2023-08-24 05:28:55,984 INFO L125 PetriNetUnfolderBase]: For 113477/113477 co-relation queries the response was YES. [2023-08-24 05:28:55,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:28:55,984 INFO L208 CegarLoopForPetriNet]: trace histogram [87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:28:55,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:28:55,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:28:55,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1400971486, now seen corresponding path program 1 times [2023-08-24 05:28:55,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:28:55,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976661754] [2023-08-24 05:28:55,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:28:55,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:28:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:28:56,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:28:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:28:56,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:28:56,285 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:28:56,285 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:28:56,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2023-08-24 05:28:56,286 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:28:56,286 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:28:56,286 WARN L233 ceAbstractionStarter]: 87 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:28:56,286 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 88 thread instances. [2023-08-24 05:28:56,407 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:28:56,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1260 places, 1084 transitions, 10264 flow [2023-08-24 05:28:58,052 INFO L124 PetriNetUnfolderBase]: 89/2138 cut-off events. [2023-08-24 05:28:58,052 INFO L125 PetriNetUnfolderBase]: For 117392/117392 co-relation queries the response was YES. [2023-08-24 05:28:58,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6319 conditions, 2138 events. 89/2138 cut-off events. For 117392/117392 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4630 event pairs, 0 based on Foata normal form. 0/1872 useless extension candidates. Maximal degree in co-relation 6191. Up to 178 conditions per place. [2023-08-24 05:28:58,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 1260 places, 1084 transitions, 10264 flow [2023-08-24 05:28:58,192 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1255 places, 1078 transitions, 10252 flow [2023-08-24 05:28:58,192 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:28:58,192 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1255 places, 1078 transitions, 10252 flow [2023-08-24 05:28:58,192 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1255 places, 1078 transitions, 10252 flow [2023-08-24 05:28:58,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1255 places, 1078 transitions, 10252 flow [2023-08-24 05:28:59,413 INFO L124 PetriNetUnfolderBase]: 0/1604 cut-off events. [2023-08-24 05:28:59,414 INFO L125 PetriNetUnfolderBase]: For 117392/117392 co-relation queries the response was YES. [2023-08-24 05:28:59,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5785 conditions, 1604 events. 0/1604 cut-off events. For 117392/117392 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2627 event pairs, 0 based on Foata normal form. 0/1516 useless extension candidates. Maximal degree in co-relation 0. Up to 89 conditions per place. [2023-08-24 05:28:59,747 INFO L119 LiptonReduction]: Number of co-enabled transitions 1024144 [2023-08-24 05:29:12,616 INFO L134 LiptonReduction]: Checked pairs total: 1604753 [2023-08-24 05:29:12,616 INFO L136 LiptonReduction]: Total number of compositions: 725 [2023-08-24 05:29:12,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 05:29:12,617 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db4e08a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:29:12,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 05:29:12,805 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:29:12,806 INFO L124 PetriNetUnfolderBase]: 0/529 cut-off events. [2023-08-24 05:29:12,806 INFO L125 PetriNetUnfolderBase]: For 117392/117392 co-relation queries the response was YES. [2023-08-24 05:29:12,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:29:12,806 INFO L208 CegarLoopForPetriNet]: trace histogram [88, 88, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:29:12,806 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 05:29:12,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:29:12,806 INFO L85 PathProgramCache]: Analyzing trace with hash -852734008, now seen corresponding path program 1 times [2023-08-24 05:29:12,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:29:12,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330353218] [2023-08-24 05:29:12,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:29:12,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:29:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:29:12,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 05:29:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 05:29:13,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 05:29:13,114 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 05:29:13,114 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 05:29:13,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2023-08-24 05:29:13,114 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 05:29:13,115 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 05:29:13,115 WARN L233 ceAbstractionStarter]: 88 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 05:29:13,115 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 89 thread instances. [2023-08-24 05:29:13,237 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:29:13,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1274 places, 1096 transitions, 10469 flow [2023-08-24 05:29:14,933 INFO L124 PetriNetUnfolderBase]: 90/2162 cut-off events. [2023-08-24 05:29:14,933 INFO L125 PetriNetUnfolderBase]: For 121396/121396 co-relation queries the response was YES. [2023-08-24 05:29:15,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6435 conditions, 2162 events. 90/2162 cut-off events. For 121396/121396 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4675 event pairs, 0 based on Foata normal form. 0/1893 useless extension candidates. Maximal degree in co-relation 6306. Up to 180 conditions per place. [2023-08-24 05:29:15,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 1274 places, 1096 transitions, 10469 flow [2023-08-24 05:29:15,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1269 places, 1090 transitions, 10457 flow [2023-08-24 05:29:15,071 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:29:15,071 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1269 places, 1090 transitions, 10457 flow [2023-08-24 05:29:15,071 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1269 places, 1090 transitions, 10457 flow [2023-08-24 05:29:15,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1269 places, 1090 transitions, 10457 flow [2023-08-24 05:29:16,275 INFO L124 PetriNetUnfolderBase]: 0/1622 cut-off events. [2023-08-24 05:29:16,275 INFO L125 PetriNetUnfolderBase]: For 121396/121396 co-relation queries the response was YES. [2023-08-24 05:29:16,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5895 conditions, 1622 events. 0/1622 cut-off events. For 121396/121396 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2648 event pairs, 0 based on Foata normal form. 0/1533 useless extension candidates. Maximal degree in co-relation 0. Up to 90 conditions per place. Received shutdown request... [2023-08-24 05:29:16,398 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-24 05:29:16,732 INFO L119 LiptonReduction]: Number of co-enabled transitions 1047530 [2023-08-24 05:29:16,738 WARN L266 SmtUtils]: Removed 2 from assertion stack [2023-08-24 05:29:16,739 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-08-24 05:29:16,739 INFO L158 Benchmark]: Toolchain (without parser) took 679183.45ms. Allocated memory was 362.8MB in the beginning and 9.0GB in the end (delta: 8.7GB). Free memory was 321.9MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. [2023-08-24 05:29:16,740 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 362.8MB. Free memory is still 340.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 05:29:16,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.55ms. Allocated memory is still 362.8MB. Free memory was 321.4MB in the beginning and 302.1MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 05:29:16,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.70ms. Allocated memory is still 362.8MB. Free memory was 302.1MB in the beginning and 300.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 05:29:16,740 INFO L158 Benchmark]: Boogie Preprocessor took 38.06ms. Allocated memory is still 362.8MB. Free memory was 300.4MB in the beginning and 299.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 05:29:16,740 INFO L158 Benchmark]: RCFGBuilder took 313.91ms. Allocated memory is still 362.8MB. Free memory was 299.0MB in the beginning and 332.1MB in the end (delta: -33.1MB). Peak memory consumption was 9.1MB. Max. memory is 16.0GB. [2023-08-24 05:29:16,741 INFO L158 Benchmark]: TraceAbstraction took 678297.84ms. Allocated memory was 362.8MB in the beginning and 9.0GB in the end (delta: 8.7GB). Free memory was 331.6MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. [2023-08-24 05:29:16,742 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 362.8MB. Free memory is still 340.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 471.55ms. Allocated memory is still 362.8MB. Free memory was 321.4MB in the beginning and 302.1MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.70ms. Allocated memory is still 362.8MB. Free memory was 302.1MB in the beginning and 300.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.06ms. Allocated memory is still 362.8MB. Free memory was 300.4MB in the beginning and 299.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 313.91ms. Allocated memory is still 362.8MB. Free memory was 299.0MB in the beginning and 332.1MB in the end (delta: -33.1MB). Peak memory consumption was 9.1MB. Max. memory is 16.0GB. * TraceAbstraction took 678297.84ms. Allocated memory was 362.8MB in the beginning and 9.0GB in the end (delta: 8.7GB). Free memory was 331.6MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 266]: Unsoundness Warning unspecified type, defaulting to int C: short [266] - GenericResultAtLocation [Line: 266]: Unsoundness Warning unspecified type, defaulting to int C: short [266] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 37 PlacesBefore, 9 PlacesAfterwards, 34 TransitionsBefore, 6 TransitionsAfterwards, 154 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 35 TotalNumberOfCompositions, 140 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 140, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 80, independent: 80, independent conditional: 0, independent unconditional: 80, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 140, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 80, unknown conditional: 0, unknown unconditional: 80] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 51 PlacesBefore, 17 PlacesAfterwards, 46 TransitionsBefore, 12 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 37 TotalNumberOfCompositions, 898 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 629, independent: 579, independent conditional: 0, independent unconditional: 579, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 309, independent: 291, independent conditional: 0, independent unconditional: 291, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 629, independent: 288, independent conditional: 0, independent unconditional: 288, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 309, unknown conditional: 0, unknown unconditional: 309] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 65 PlacesBefore, 23 PlacesAfterwards, 58 TransitionsBefore, 16 TransitionsAfterwards, 1254 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, 2000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1494, independent: 1428, independent conditional: 0, independent unconditional: 1428, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 676, independent: 646, independent conditional: 0, independent unconditional: 646, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1494, independent: 782, independent conditional: 0, independent unconditional: 782, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 676, unknown conditional: 0, unknown unconditional: 676] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 79 PlacesBefore, 29 PlacesAfterwards, 70 TransitionsBefore, 20 TransitionsAfterwards, 2200 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, 3509 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2150, independent: 2069, independent conditional: 0, independent unconditional: 2069, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1144, independent: 1104, independent conditional: 0, independent unconditional: 1104, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2150, independent: 965, independent conditional: 0, independent unconditional: 965, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 1144, unknown conditional: 0, unknown unconditional: 1144] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 93 PlacesBefore, 35 PlacesAfterwards, 82 TransitionsBefore, 24 TransitionsAfterwards, 3410 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 61 TotalNumberOfCompositions, 5066 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3307, independent: 3212, independent conditional: 0, independent unconditional: 3212, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1759, independent: 1718, independent conditional: 0, independent unconditional: 1718, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3307, independent: 1494, independent conditional: 0, independent unconditional: 1494, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 1759, unknown conditional: 0, unknown unconditional: 1759] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 107 PlacesBefore, 41 PlacesAfterwards, 94 TransitionsBefore, 28 TransitionsAfterwards, 4884 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 69 TotalNumberOfCompositions, 7171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4614, independent: 4503, independent conditional: 0, independent unconditional: 4503, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2540, independent: 2493, independent conditional: 0, independent unconditional: 2493, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4614, independent: 2010, independent conditional: 0, independent unconditional: 2010, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 2540, unknown conditional: 0, unknown unconditional: 2540] , Statistics on independence cache: Total cache size (in pairs): 152, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 121 PlacesBefore, 47 PlacesAfterwards, 106 TransitionsBefore, 32 TransitionsAfterwards, 6622 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 11535 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5949, independent: 5790, independent conditional: 0, independent unconditional: 5790, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3355, independent: 3287, independent conditional: 0, independent unconditional: 3287, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5949, independent: 2503, independent conditional: 0, independent unconditional: 2503, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 3355, unknown conditional: 0, unknown unconditional: 3355] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 135 PlacesBefore, 53 PlacesAfterwards, 118 TransitionsBefore, 36 TransitionsAfterwards, 8624 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 85 TotalNumberOfCompositions, 14244 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8124, independent: 7951, independent conditional: 0, independent unconditional: 7951, dependent: 173, dependent conditional: 0, dependent unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4412, independent: 4340, independent conditional: 0, independent unconditional: 4340, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8124, independent: 3611, independent conditional: 0, independent unconditional: 3611, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 4412, unknown conditional: 0, unknown unconditional: 4412] , Statistics on independence cache: Total cache size (in pairs): 273, Positive cache size: 250, Positive conditional cache size: 0, Positive unconditional cache size: 250, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 149 PlacesBefore, 59 PlacesAfterwards, 130 TransitionsBefore, 40 TransitionsAfterwards, 10890 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 93 TotalNumberOfCompositions, 16636 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10571, independent: 10396, independent conditional: 0, independent unconditional: 10396, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5640, independent: 5561, independent conditional: 0, independent unconditional: 5561, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10571, independent: 4835, independent conditional: 0, independent unconditional: 4835, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 5640, unknown conditional: 0, unknown unconditional: 5640] , Statistics on independence cache: Total cache size (in pairs): 337, Positive cache size: 311, Positive conditional cache size: 0, Positive unconditional cache size: 311, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 163 PlacesBefore, 65 PlacesAfterwards, 142 TransitionsBefore, 44 TransitionsAfterwards, 13420 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 101 TotalNumberOfCompositions, 23030 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13909, independent: 13667, independent conditional: 0, independent unconditional: 13667, dependent: 242, dependent conditional: 0, dependent unconditional: 242, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6816, independent: 6724, independent conditional: 0, independent unconditional: 6724, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13909, independent: 6943, independent conditional: 0, independent unconditional: 6943, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 6816, unknown conditional: 0, unknown unconditional: 6816] , Statistics on independence cache: Total cache size (in pairs): 431, Positive cache size: 402, Positive conditional cache size: 0, Positive unconditional cache size: 402, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 177 PlacesBefore, 71 PlacesAfterwards, 154 TransitionsBefore, 48 TransitionsAfterwards, 16214 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 109 TotalNumberOfCompositions, 28920 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14395, independent: 14119, independent conditional: 0, independent unconditional: 14119, dependent: 276, dependent conditional: 0, dependent unconditional: 276, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8136, independent: 8032, independent conditional: 0, independent unconditional: 8032, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14395, independent: 6087, independent conditional: 0, independent unconditional: 6087, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 8136, unknown conditional: 0, unknown unconditional: 8136] , Statistics on independence cache: Total cache size (in pairs): 394, Positive cache size: 362, Positive conditional cache size: 0, Positive unconditional cache size: 362, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 191 PlacesBefore, 77 PlacesAfterwards, 166 TransitionsBefore, 52 TransitionsAfterwards, 19272 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 97 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 117 TotalNumberOfCompositions, 30445 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17547, independent: 17305, independent conditional: 0, independent unconditional: 17305, dependent: 242, dependent conditional: 0, dependent unconditional: 242, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9709, independent: 9599, independent conditional: 0, independent unconditional: 9599, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17547, independent: 7706, independent conditional: 0, independent unconditional: 7706, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 9709, unknown conditional: 0, unknown unconditional: 9709] , Statistics on independence cache: Total cache size (in pairs): 512, Positive cache size: 477, Positive conditional cache size: 0, Positive unconditional cache size: 477, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 205 PlacesBefore, 83 PlacesAfterwards, 178 TransitionsBefore, 56 TransitionsAfterwards, 22594 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 105 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 125 TotalNumberOfCompositions, 34937 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19658, independent: 19406, independent conditional: 0, independent unconditional: 19406, dependent: 252, dependent conditional: 0, dependent unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11280, independent: 11158, independent conditional: 0, independent unconditional: 11158, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 19658, independent: 8248, independent conditional: 0, independent unconditional: 8248, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 11280, unknown conditional: 0, unknown unconditional: 11280] , Statistics on independence cache: Total cache size (in pairs): 572, Positive cache size: 534, Positive conditional cache size: 0, Positive unconditional cache size: 534, 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: 2.4s, 219 PlacesBefore, 89 PlacesAfterwards, 190 TransitionsBefore, 60 TransitionsAfterwards, 26180 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 113 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 133 TotalNumberOfCompositions, 41158 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24092, independent: 23812, independent conditional: 0, independent unconditional: 23812, dependent: 280, dependent conditional: 0, dependent unconditional: 280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13183, independent: 13061, independent conditional: 0, independent unconditional: 13061, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24092, independent: 10751, independent conditional: 0, independent unconditional: 10751, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 13183, unknown conditional: 0, unknown unconditional: 13183] , Statistics on independence cache: Total cache size (in pairs): 782, Positive cache size: 741, Positive conditional cache size: 0, Positive unconditional cache size: 741, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 233 PlacesBefore, 95 PlacesAfterwards, 202 TransitionsBefore, 64 TransitionsAfterwards, 30030 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 121 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 141 TotalNumberOfCompositions, 52732 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27467, independent: 27094, independent conditional: 0, independent unconditional: 27094, dependent: 373, dependent conditional: 0, dependent unconditional: 373, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 14965, independent: 14805, independent conditional: 0, independent unconditional: 14805, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 27467, independent: 12289, independent conditional: 0, independent unconditional: 12289, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 14965, unknown conditional: 0, unknown unconditional: 14965] , Statistics on independence cache: Total cache size (in pairs): 805, Positive cache size: 761, Positive conditional cache size: 0, Positive unconditional cache size: 761, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 247 PlacesBefore, 101 PlacesAfterwards, 214 TransitionsBefore, 68 TransitionsAfterwards, 34144 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 129 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 149 TotalNumberOfCompositions, 56549 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29952, independent: 29617, independent conditional: 0, independent unconditional: 29617, dependent: 335, dependent conditional: 0, dependent unconditional: 335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 16873, independent: 16740, independent conditional: 0, independent unconditional: 16740, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 29952, independent: 12877, independent conditional: 0, independent unconditional: 12877, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 16873, unknown conditional: 0, unknown unconditional: 16873] , Statistics on independence cache: Total cache size (in pairs): 868, Positive cache size: 821, Positive conditional cache size: 0, Positive unconditional cache size: 821, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 261 PlacesBefore, 107 PlacesAfterwards, 226 TransitionsBefore, 72 TransitionsAfterwards, 38522 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 137 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 157 TotalNumberOfCompositions, 62993 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33587, independent: 33236, independent conditional: 0, independent unconditional: 33236, dependent: 351, dependent conditional: 0, dependent unconditional: 351, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 18993, independent: 18832, independent conditional: 0, independent unconditional: 18832, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 33587, independent: 14404, independent conditional: 0, independent unconditional: 14404, dependent: 190, dependent conditional: 0, dependent unconditional: 190, unknown: 18993, unknown conditional: 0, unknown unconditional: 18993] , Statistics on independence cache: Total cache size (in pairs): 892, Positive cache size: 842, Positive conditional cache size: 0, Positive unconditional cache size: 842, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 275 PlacesBefore, 113 PlacesAfterwards, 238 TransitionsBefore, 76 TransitionsAfterwards, 43164 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 145 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 165 TotalNumberOfCompositions, 71139 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39845, independent: 39468, independent conditional: 0, independent unconditional: 39468, dependent: 377, dependent conditional: 0, dependent unconditional: 377, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 21622, independent: 21446, independent conditional: 0, independent unconditional: 21446, dependent: 176, dependent conditional: 0, dependent unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39845, independent: 18022, independent conditional: 0, independent unconditional: 18022, dependent: 201, dependent conditional: 0, dependent unconditional: 201, unknown: 21622, unknown conditional: 0, unknown unconditional: 21622] , Statistics on independence cache: Total cache size (in pairs): 1255, Positive cache size: 1202, Positive conditional cache size: 0, Positive unconditional cache size: 1202, Negative cache size: 53, Negative conditional cache size: 0, Negative unconditional cache size: 53, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 289 PlacesBefore, 119 PlacesAfterwards, 250 TransitionsBefore, 80 TransitionsAfterwards, 48070 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 153 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 173 TotalNumberOfCompositions, 77024 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43383, independent: 43008, independent conditional: 0, independent unconditional: 43008, dependent: 375, dependent conditional: 0, dependent unconditional: 375, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 23898, independent: 23727, independent conditional: 0, independent unconditional: 23727, dependent: 171, dependent conditional: 0, dependent unconditional: 171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 43383, independent: 19281, independent conditional: 0, independent unconditional: 19281, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 23898, unknown conditional: 0, unknown unconditional: 23898] , Statistics on independence cache: Total cache size (in pairs): 1390, Positive cache size: 1334, Positive conditional cache size: 0, Positive unconditional cache size: 1334, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 303 PlacesBefore, 125 PlacesAfterwards, 262 TransitionsBefore, 84 TransitionsAfterwards, 53240 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 161 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 181 TotalNumberOfCompositions, 84850 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47426, independent: 47026, independent conditional: 0, independent unconditional: 47026, dependent: 400, dependent conditional: 0, dependent unconditional: 400, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 26430, independent: 26238, independent conditional: 0, independent unconditional: 26238, dependent: 192, dependent conditional: 0, dependent unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 47426, independent: 20788, independent conditional: 0, independent unconditional: 20788, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 26430, unknown conditional: 0, unknown unconditional: 26430] , Statistics on independence cache: Total cache size (in pairs): 1462, Positive cache size: 1403, Positive conditional cache size: 0, Positive unconditional cache size: 1403, Negative cache size: 59, Negative conditional cache size: 0, Negative unconditional cache size: 59, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 317 PlacesBefore, 131 PlacesAfterwards, 274 TransitionsBefore, 88 TransitionsAfterwards, 58674 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 169 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 189 TotalNumberOfCompositions, 98430 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54129, independent: 53637, independent conditional: 0, independent unconditional: 53637, dependent: 492, dependent conditional: 0, dependent unconditional: 492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 29001, independent: 28811, independent conditional: 0, independent unconditional: 28811, dependent: 190, dependent conditional: 0, dependent unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 54129, independent: 24826, independent conditional: 0, independent unconditional: 24826, dependent: 302, dependent conditional: 0, dependent unconditional: 302, unknown: 29001, unknown conditional: 0, unknown unconditional: 29001] , Statistics on independence cache: Total cache size (in pairs): 1599, Positive cache size: 1537, Positive conditional cache size: 0, Positive unconditional cache size: 1537, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 331 PlacesBefore, 137 PlacesAfterwards, 286 TransitionsBefore, 92 TransitionsAfterwards, 64372 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 177 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 197 TotalNumberOfCompositions, 116853 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55874, independent: 55369, independent conditional: 0, independent unconditional: 55369, dependent: 505, dependent conditional: 0, dependent unconditional: 505, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 31743, independent: 31558, independent conditional: 0, independent unconditional: 31558, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 55874, independent: 23811, independent conditional: 0, independent unconditional: 23811, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 31743, unknown conditional: 0, unknown unconditional: 31743] , Statistics on independence cache: Total cache size (in pairs): 1712, Positive cache size: 1647, Positive conditional cache size: 0, Positive unconditional cache size: 1647, Negative cache size: 65, Negative conditional cache size: 0, Negative unconditional cache size: 65, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 345 PlacesBefore, 143 PlacesAfterwards, 298 TransitionsBefore, 96 TransitionsAfterwards, 70334 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 185 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 205 TotalNumberOfCompositions, 111606 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 63580, independent: 63127, independent conditional: 0, independent unconditional: 63127, dependent: 453, dependent conditional: 0, dependent unconditional: 453, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 34937, independent: 34723, independent conditional: 0, independent unconditional: 34723, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 63580, independent: 28404, independent conditional: 0, independent unconditional: 28404, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 34937, unknown conditional: 0, unknown unconditional: 34937] , Statistics on independence cache: Total cache size (in pairs): 1861, Positive cache size: 1793, Positive conditional cache size: 0, Positive unconditional cache size: 1793, Negative cache size: 68, Negative conditional cache size: 0, Negative unconditional cache size: 68, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 359 PlacesBefore, 149 PlacesAfterwards, 310 TransitionsBefore, 100 TransitionsAfterwards, 76560 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 193 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 213 TotalNumberOfCompositions, 121083 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66918, independent: 66434, independent conditional: 0, independent unconditional: 66434, dependent: 484, dependent conditional: 0, dependent unconditional: 484, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 37920, independent: 37710, independent conditional: 0, independent unconditional: 37710, dependent: 210, dependent conditional: 0, dependent unconditional: 210, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 66918, independent: 28724, independent conditional: 0, independent unconditional: 28724, dependent: 274, dependent conditional: 0, dependent unconditional: 274, unknown: 37920, unknown conditional: 0, unknown unconditional: 37920] , Statistics on independence cache: Total cache size (in pairs): 2038, Positive cache size: 1967, Positive conditional cache size: 0, Positive unconditional cache size: 1967, Negative cache size: 71, Negative conditional cache size: 0, Negative unconditional cache size: 71, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 373 PlacesBefore, 155 PlacesAfterwards, 322 TransitionsBefore, 104 TransitionsAfterwards, 83050 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 201 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 221 TotalNumberOfCompositions, 140756 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73179, independent: 72647, independent conditional: 0, independent unconditional: 72647, dependent: 532, dependent conditional: 0, dependent unconditional: 532, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41209, independent: 40981, independent conditional: 0, independent unconditional: 40981, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 73179, independent: 31666, independent conditional: 0, independent unconditional: 31666, dependent: 304, dependent conditional: 0, dependent unconditional: 304, unknown: 41209, unknown conditional: 0, unknown unconditional: 41209] , Statistics on independence cache: Total cache size (in pairs): 2268, Positive cache size: 2194, Positive conditional cache size: 0, Positive unconditional cache size: 2194, Negative cache size: 74, Negative conditional cache size: 0, Negative unconditional cache size: 74, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 387 PlacesBefore, 161 PlacesAfterwards, 334 TransitionsBefore, 108 TransitionsAfterwards, 89804 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 209 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 229 TotalNumberOfCompositions, 149907 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 78765, independent: 78218, independent conditional: 0, independent unconditional: 78218, dependent: 547, dependent conditional: 0, dependent unconditional: 547, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 44434, independent: 44194, independent conditional: 0, independent unconditional: 44194, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 78765, independent: 34024, independent conditional: 0, independent unconditional: 34024, dependent: 307, dependent conditional: 0, dependent unconditional: 307, unknown: 44434, unknown conditional: 0, unknown unconditional: 44434] , Statistics on independence cache: Total cache size (in pairs): 2461, Positive cache size: 2384, Positive conditional cache size: 0, Positive unconditional cache size: 2384, Negative cache size: 77, Negative conditional cache size: 0, Negative unconditional cache size: 77, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 401 PlacesBefore, 167 PlacesAfterwards, 346 TransitionsBefore, 112 TransitionsAfterwards, 96822 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 217 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 237 TotalNumberOfCompositions, 161554 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 81687, independent: 81061, independent conditional: 0, independent unconditional: 81061, dependent: 626, dependent conditional: 0, dependent unconditional: 626, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 46946, independent: 46681, independent conditional: 0, independent unconditional: 46681, dependent: 265, dependent conditional: 0, dependent unconditional: 265, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 81687, independent: 34380, independent conditional: 0, independent unconditional: 34380, dependent: 361, dependent conditional: 0, dependent unconditional: 361, unknown: 46946, unknown conditional: 0, unknown unconditional: 46946] , Statistics on independence cache: Total cache size (in pairs): 1507, Positive cache size: 1427, Positive conditional cache size: 0, Positive unconditional cache size: 1427, Negative cache size: 80, Negative conditional cache size: 0, Negative unconditional cache size: 80, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 415 PlacesBefore, 173 PlacesAfterwards, 358 TransitionsBefore, 116 TransitionsAfterwards, 104104 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 225 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 245 TotalNumberOfCompositions, 170283 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 91493, independent: 90922, independent conditional: 0, independent unconditional: 90922, dependent: 571, dependent conditional: 0, dependent unconditional: 571, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 51791, independent: 51501, independent conditional: 0, independent unconditional: 51501, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 91493, independent: 39421, independent conditional: 0, independent unconditional: 39421, dependent: 281, dependent conditional: 0, dependent unconditional: 281, unknown: 51791, unknown conditional: 0, unknown unconditional: 51791] , Statistics on independence cache: Total cache size (in pairs): 2898, Positive cache size: 2815, Positive conditional cache size: 0, Positive unconditional cache size: 2815, Negative cache size: 83, Negative conditional cache size: 0, Negative unconditional cache size: 83, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 429 PlacesBefore, 179 PlacesAfterwards, 370 TransitionsBefore, 120 TransitionsAfterwards, 111650 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 233 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 253 TotalNumberOfCompositions, 175889 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 98830, independent: 98266, independent conditional: 0, independent unconditional: 98266, dependent: 564, dependent conditional: 0, dependent unconditional: 564, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 55069, independent: 54815, independent conditional: 0, independent unconditional: 54815, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 98830, independent: 43451, independent conditional: 0, independent unconditional: 43451, dependent: 310, dependent conditional: 0, dependent unconditional: 310, unknown: 55069, unknown conditional: 0, unknown unconditional: 55069] , Statistics on independence cache: Total cache size (in pairs): 2723, Positive cache size: 2637, Positive conditional cache size: 0, Positive unconditional cache size: 2637, Negative cache size: 86, Negative conditional cache size: 0, Negative unconditional cache size: 86, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 443 PlacesBefore, 185 PlacesAfterwards, 382 TransitionsBefore, 124 TransitionsAfterwards, 119460 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 241 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 261 TotalNumberOfCompositions, 213210 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 113026, independent: 112284, independent conditional: 0, independent unconditional: 112284, dependent: 742, dependent conditional: 0, dependent unconditional: 742, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 58913, independent: 58615, independent conditional: 0, independent unconditional: 58615, dependent: 298, dependent conditional: 0, dependent unconditional: 298, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 113026, independent: 53669, independent conditional: 0, independent unconditional: 53669, dependent: 444, dependent conditional: 0, dependent unconditional: 444, unknown: 58913, unknown conditional: 0, unknown unconditional: 58913] , Statistics on independence cache: Total cache size (in pairs): 3367, Positive cache size: 3278, Positive conditional cache size: 0, Positive unconditional cache size: 3278, Negative cache size: 89, Negative conditional cache size: 0, Negative unconditional cache size: 89, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 457 PlacesBefore, 191 PlacesAfterwards, 394 TransitionsBefore, 128 TransitionsAfterwards, 127534 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 249 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 269 TotalNumberOfCompositions, 226761 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 113878, independent: 113114, independent conditional: 0, independent unconditional: 113114, dependent: 764, dependent conditional: 0, dependent unconditional: 764, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 62506, independent: 62249, independent conditional: 0, independent unconditional: 62249, dependent: 257, dependent conditional: 0, dependent unconditional: 257, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 113878, independent: 50865, independent conditional: 0, independent unconditional: 50865, dependent: 507, dependent conditional: 0, dependent unconditional: 507, unknown: 62506, unknown conditional: 0, unknown unconditional: 62506] , Statistics on independence cache: Total cache size (in pairs): 3365, Positive cache size: 3273, Positive conditional cache size: 0, Positive unconditional cache size: 3273, Negative cache size: 92, Negative conditional cache size: 0, Negative unconditional cache size: 92, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 471 PlacesBefore, 197 PlacesAfterwards, 406 TransitionsBefore, 132 TransitionsAfterwards, 135872 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 257 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 277 TotalNumberOfCompositions, 217691 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 121725, independent: 121101, independent conditional: 0, independent unconditional: 121101, dependent: 624, dependent conditional: 0, dependent unconditional: 624, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 66628, independent: 66294, independent conditional: 0, independent unconditional: 66294, dependent: 334, dependent conditional: 0, dependent unconditional: 334, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 121725, independent: 54807, independent conditional: 0, independent unconditional: 54807, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 66628, unknown conditional: 0, unknown unconditional: 66628] , Statistics on independence cache: Total cache size (in pairs): 3240, Positive cache size: 3145, Positive conditional cache size: 0, Positive unconditional cache size: 3145, Negative cache size: 95, Negative conditional cache size: 0, Negative unconditional cache size: 95, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 485 PlacesBefore, 203 PlacesAfterwards, 418 TransitionsBefore, 136 TransitionsAfterwards, 144474 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 265 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 285 TotalNumberOfCompositions, 228665 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 128140, independent: 127503, independent conditional: 0, independent unconditional: 127503, dependent: 637, dependent conditional: 0, dependent unconditional: 637, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 71042, independent: 70727, independent conditional: 0, independent unconditional: 70727, dependent: 315, dependent conditional: 0, dependent unconditional: 315, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 128140, independent: 56776, independent conditional: 0, independent unconditional: 56776, dependent: 322, dependent conditional: 0, dependent unconditional: 322, unknown: 71042, unknown conditional: 0, unknown unconditional: 71042] , Statistics on independence cache: Total cache size (in pairs): 4048, Positive cache size: 3950, Positive conditional cache size: 0, Positive unconditional cache size: 3950, Negative cache size: 98, Negative conditional cache size: 0, Negative unconditional cache size: 98, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 499 PlacesBefore, 209 PlacesAfterwards, 430 TransitionsBefore, 140 TransitionsAfterwards, 153340 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 273 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 293 TotalNumberOfCompositions, 279330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 141285, independent: 140414, independent conditional: 0, independent unconditional: 140414, dependent: 871, dependent conditional: 0, dependent unconditional: 871, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 75314, independent: 74960, independent conditional: 0, independent unconditional: 74960, dependent: 354, dependent conditional: 0, dependent unconditional: 354, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 141285, independent: 65454, independent conditional: 0, independent unconditional: 65454, dependent: 517, dependent conditional: 0, dependent unconditional: 517, unknown: 75314, unknown conditional: 0, unknown unconditional: 75314] , Statistics on independence cache: Total cache size (in pairs): 4265, Positive cache size: 4164, Positive conditional cache size: 0, Positive unconditional cache size: 4164, Negative cache size: 101, Negative conditional cache size: 0, Negative unconditional cache size: 101, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 513 PlacesBefore, 215 PlacesAfterwards, 442 TransitionsBefore, 144 TransitionsAfterwards, 162470 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 281 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 301 TotalNumberOfCompositions, 281150 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 148988, independent: 148147, independent conditional: 0, independent unconditional: 148147, dependent: 841, dependent conditional: 0, dependent unconditional: 841, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 79437, independent: 79133, independent conditional: 0, independent unconditional: 79133, dependent: 304, dependent conditional: 0, dependent unconditional: 304, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 148988, independent: 69014, independent conditional: 0, independent unconditional: 69014, dependent: 537, dependent conditional: 0, dependent unconditional: 537, unknown: 79437, unknown conditional: 0, unknown unconditional: 79437] , Statistics on independence cache: Total cache size (in pairs): 4226, Positive cache size: 4122, Positive conditional cache size: 0, Positive unconditional cache size: 4122, Negative cache size: 104, Negative conditional cache size: 0, Negative unconditional cache size: 104, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 527 PlacesBefore, 221 PlacesAfterwards, 454 TransitionsBefore, 148 TransitionsAfterwards, 171864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 289 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 309 TotalNumberOfCompositions, 289479 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 146348, independent: 145595, independent conditional: 0, independent unconditional: 145595, dependent: 753, dependent conditional: 0, dependent unconditional: 753, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 83894, independent: 83513, independent conditional: 0, independent unconditional: 83513, dependent: 381, dependent conditional: 0, dependent unconditional: 381, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 146348, independent: 62082, independent conditional: 0, independent unconditional: 62082, dependent: 372, dependent conditional: 0, dependent unconditional: 372, unknown: 83894, unknown conditional: 0, unknown unconditional: 83894] , Statistics on independence cache: Total cache size (in pairs): 4064, Positive cache size: 3957, Positive conditional cache size: 0, Positive unconditional cache size: 3957, Negative cache size: 107, Negative conditional cache size: 0, Negative unconditional cache size: 107, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 541 PlacesBefore, 227 PlacesAfterwards, 466 TransitionsBefore, 152 TransitionsAfterwards, 181522 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 297 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 317 TotalNumberOfCompositions, 322285 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 171160, independent: 170238, independent conditional: 0, independent unconditional: 170238, dependent: 922, dependent conditional: 0, dependent unconditional: 922, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 89290, independent: 88932, independent conditional: 0, independent unconditional: 88932, dependent: 358, dependent conditional: 0, dependent unconditional: 358, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 171160, independent: 81306, independent conditional: 0, independent unconditional: 81306, dependent: 564, dependent conditional: 0, dependent unconditional: 564, unknown: 89290, unknown conditional: 0, unknown unconditional: 89290] , Statistics on independence cache: Total cache size (in pairs): 5057, Positive cache size: 4947, Positive conditional cache size: 0, Positive unconditional cache size: 4947, Negative cache size: 110, Negative conditional cache size: 0, Negative unconditional cache size: 110, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5s, 555 PlacesBefore, 233 PlacesAfterwards, 478 TransitionsBefore, 156 TransitionsAfterwards, 191444 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 305 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 325 TotalNumberOfCompositions, 304421 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170179, independent: 169431, independent conditional: 0, independent unconditional: 169431, dependent: 748, dependent conditional: 0, dependent unconditional: 748, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 93756, independent: 93433, independent conditional: 0, independent unconditional: 93433, dependent: 323, dependent conditional: 0, dependent unconditional: 323, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170179, independent: 75998, independent conditional: 0, independent unconditional: 75998, dependent: 425, dependent conditional: 0, dependent unconditional: 425, unknown: 93756, unknown conditional: 0, unknown unconditional: 93756] , Statistics on independence cache: Total cache size (in pairs): 5321, Positive cache size: 5208, Positive conditional cache size: 0, Positive unconditional cache size: 5208, 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: 5.7s, 569 PlacesBefore, 239 PlacesAfterwards, 490 TransitionsBefore, 160 TransitionsAfterwards, 201630 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 313 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 333 TotalNumberOfCompositions, 336727 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 175556, independent: 174729, independent conditional: 0, independent unconditional: 174729, dependent: 827, dependent conditional: 0, dependent unconditional: 827, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 99012, independent: 98698, independent conditional: 0, independent unconditional: 98698, dependent: 314, dependent conditional: 0, dependent unconditional: 314, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 175556, independent: 76031, independent conditional: 0, independent unconditional: 76031, dependent: 513, dependent conditional: 0, dependent unconditional: 513, unknown: 99012, unknown conditional: 0, unknown unconditional: 99012] , Statistics on independence cache: Total cache size (in pairs): 5374, Positive cache size: 5258, Positive conditional cache size: 0, Positive unconditional cache size: 5258, Negative cache size: 116, Negative conditional cache size: 0, Negative unconditional cache size: 116, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.8s, 583 PlacesBefore, 245 PlacesAfterwards, 502 TransitionsBefore, 164 TransitionsAfterwards, 212080 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 321 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 341 TotalNumberOfCompositions, 349674 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 182461, independent: 181644, independent conditional: 0, independent unconditional: 181644, dependent: 817, dependent conditional: 0, dependent unconditional: 817, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 103664, independent: 103249, independent conditional: 0, independent unconditional: 103249, dependent: 415, dependent conditional: 0, dependent unconditional: 415, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 182461, independent: 78395, independent conditional: 0, independent unconditional: 78395, dependent: 402, dependent conditional: 0, dependent unconditional: 402, unknown: 103664, unknown conditional: 0, unknown unconditional: 103664] , Statistics on independence cache: Total cache size (in pairs): 5314, Positive cache size: 5195, Positive conditional cache size: 0, Positive unconditional cache size: 5195, Negative cache size: 119, Negative conditional cache size: 0, Negative unconditional cache size: 119, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 597 PlacesBefore, 251 PlacesAfterwards, 514 TransitionsBefore, 168 TransitionsAfterwards, 222794 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 329 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 349 TotalNumberOfCompositions, 367956 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 188636, independent: 187790, independent conditional: 0, independent unconditional: 187790, dependent: 846, dependent conditional: 0, dependent unconditional: 846, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 108703, independent: 108261, independent conditional: 0, independent unconditional: 108261, dependent: 442, dependent conditional: 0, dependent unconditional: 442, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 188636, independent: 79529, independent conditional: 0, independent unconditional: 79529, dependent: 404, dependent conditional: 0, dependent unconditional: 404, unknown: 108703, unknown conditional: 0, unknown unconditional: 108703] , Statistics on independence cache: Total cache size (in pairs): 5247, Positive cache size: 5125, Positive conditional cache size: 0, Positive unconditional cache size: 5125, Negative cache size: 122, Negative conditional cache size: 0, Negative unconditional cache size: 122, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 611 PlacesBefore, 257 PlacesAfterwards, 526 TransitionsBefore, 172 TransitionsAfterwards, 233772 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 337 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 357 TotalNumberOfCompositions, 386788 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 197197, independent: 196345, independent conditional: 0, independent unconditional: 196345, dependent: 852, dependent conditional: 0, dependent unconditional: 852, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 114086, independent: 113624, independent conditional: 0, independent unconditional: 113624, dependent: 462, dependent conditional: 0, dependent unconditional: 462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 197197, independent: 82721, independent conditional: 0, independent unconditional: 82721, dependent: 390, dependent conditional: 0, dependent unconditional: 390, unknown: 114086, unknown conditional: 0, unknown unconditional: 114086] , Statistics on independence cache: Total cache size (in pairs): 5493, Positive cache size: 5368, Positive conditional cache size: 0, Positive unconditional cache size: 5368, Negative cache size: 125, Negative conditional cache size: 0, Negative unconditional cache size: 125, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 625 PlacesBefore, 263 PlacesAfterwards, 538 TransitionsBefore, 176 TransitionsAfterwards, 245014 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 345 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 365 TotalNumberOfCompositions, 413996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 207441, independent: 206422, independent conditional: 0, independent unconditional: 206422, dependent: 1019, dependent conditional: 0, dependent unconditional: 1019, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 117377, independent: 117014, independent conditional: 0, independent unconditional: 117014, dependent: 363, dependent conditional: 0, dependent unconditional: 363, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 207441, independent: 89408, independent conditional: 0, independent unconditional: 89408, dependent: 656, dependent conditional: 0, dependent unconditional: 656, unknown: 117377, unknown conditional: 0, unknown unconditional: 117377] , Statistics on independence cache: Total cache size (in pairs): 3932, Positive cache size: 3804, Positive conditional cache size: 0, Positive unconditional cache size: 3804, Negative cache size: 128, Negative conditional cache size: 0, Negative unconditional cache size: 128, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 639 PlacesBefore, 269 PlacesAfterwards, 550 TransitionsBefore, 180 TransitionsAfterwards, 256520 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 353 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 373 TotalNumberOfCompositions, 422510 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 211252, independent: 210342, independent conditional: 0, independent unconditional: 210342, dependent: 910, dependent conditional: 0, dependent unconditional: 910, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 123184, independent: 122705, independent conditional: 0, independent unconditional: 122705, dependent: 479, dependent conditional: 0, dependent unconditional: 479, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 211252, independent: 87637, independent conditional: 0, independent unconditional: 87637, dependent: 431, dependent conditional: 0, dependent unconditional: 431, unknown: 123184, unknown conditional: 0, unknown unconditional: 123184] , Statistics on independence cache: Total cache size (in pairs): 3827, Positive cache size: 3673, Positive conditional cache size: 0, Positive unconditional cache size: 3673, Negative cache size: 154, Negative conditional cache size: 0, Negative unconditional cache size: 154, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7s, 653 PlacesBefore, 275 PlacesAfterwards, 562 TransitionsBefore, 184 TransitionsAfterwards, 268290 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 361 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 381 TotalNumberOfCompositions, 463351 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 252733, independent: 251663, independent conditional: 0, independent unconditional: 251663, dependent: 1070, dependent conditional: 0, dependent unconditional: 1070, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 131743, independent: 131295, independent conditional: 0, independent unconditional: 131295, dependent: 448, dependent conditional: 0, dependent unconditional: 448, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 252733, independent: 120368, independent conditional: 0, independent unconditional: 120368, dependent: 622, dependent conditional: 0, dependent unconditional: 622, unknown: 131743, unknown conditional: 0, unknown unconditional: 131743] , Statistics on independence cache: Total cache size (in pairs): 7414, Positive cache size: 7280, Positive conditional cache size: 0, Positive unconditional cache size: 7280, Negative cache size: 134, Negative conditional cache size: 0, Negative unconditional cache size: 134, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 667 PlacesBefore, 281 PlacesAfterwards, 574 TransitionsBefore, 188 TransitionsAfterwards, 280324 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 369 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 389 TotalNumberOfCompositions, 450057 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 249295, independent: 248381, independent conditional: 0, independent unconditional: 248381, dependent: 914, dependent conditional: 0, dependent unconditional: 914, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 137906, independent: 137464, independent conditional: 0, independent unconditional: 137464, dependent: 442, dependent conditional: 0, dependent unconditional: 442, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 249295, independent: 110917, independent conditional: 0, independent unconditional: 110917, dependent: 472, dependent conditional: 0, dependent unconditional: 472, unknown: 137906, unknown conditional: 0, unknown unconditional: 137906] , Statistics on independence cache: Total cache size (in pairs): 7612, Positive cache size: 7475, Positive conditional cache size: 0, Positive unconditional cache size: 7475, Negative cache size: 137, Negative conditional cache size: 0, Negative unconditional cache size: 137, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 681 PlacesBefore, 287 PlacesAfterwards, 586 TransitionsBefore, 192 TransitionsAfterwards, 292622 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 377 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 397 TotalNumberOfCompositions, 511321 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 276414, independent: 275265, independent conditional: 0, independent unconditional: 275265, dependent: 1149, dependent conditional: 0, dependent unconditional: 1149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 143231, independent: 142807, independent conditional: 0, independent unconditional: 142807, dependent: 424, dependent conditional: 0, dependent unconditional: 424, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 276414, independent: 132458, independent conditional: 0, independent unconditional: 132458, dependent: 725, dependent conditional: 0, dependent unconditional: 725, unknown: 143231, unknown conditional: 0, unknown unconditional: 143231] , Statistics on independence cache: Total cache size (in pairs): 7936, Positive cache size: 7796, Positive conditional cache size: 0, Positive unconditional cache size: 7796, Negative cache size: 140, Negative conditional cache size: 0, Negative unconditional cache size: 140, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 695 PlacesBefore, 293 PlacesAfterwards, 598 TransitionsBefore, 196 TransitionsAfterwards, 305184 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 385 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 405 TotalNumberOfCompositions, 535803 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 283297, independent: 282137, independent conditional: 0, independent unconditional: 282137, dependent: 1160, dependent conditional: 0, dependent unconditional: 1160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 149237, independent: 148795, independent conditional: 0, independent unconditional: 148795, dependent: 442, dependent conditional: 0, dependent unconditional: 442, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 283297, independent: 133342, independent conditional: 0, independent unconditional: 133342, dependent: 718, dependent conditional: 0, dependent unconditional: 718, unknown: 149237, unknown conditional: 0, unknown unconditional: 149237] , Statistics on independence cache: Total cache size (in pairs): 8264, Positive cache size: 8121, Positive conditional cache size: 0, Positive unconditional cache size: 8121, Negative cache size: 143, Negative conditional cache size: 0, Negative unconditional cache size: 143, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 709 PlacesBefore, 299 PlacesAfterwards, 610 TransitionsBefore, 200 TransitionsAfterwards, 318010 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 393 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 413 TotalNumberOfCompositions, 553451 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 298289, independent: 297110, independent conditional: 0, independent unconditional: 297110, dependent: 1179, dependent conditional: 0, dependent unconditional: 1179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 156123, independent: 155645, independent conditional: 0, independent unconditional: 155645, dependent: 478, dependent conditional: 0, dependent unconditional: 478, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 298289, independent: 141465, independent conditional: 0, independent unconditional: 141465, dependent: 701, dependent conditional: 0, dependent unconditional: 701, unknown: 156123, unknown conditional: 0, unknown unconditional: 156123] , Statistics on independence cache: Total cache size (in pairs): 8608, Positive cache size: 8462, Positive conditional cache size: 0, Positive unconditional cache size: 8462, Negative cache size: 146, Negative conditional cache size: 0, Negative unconditional cache size: 146, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 723 PlacesBefore, 305 PlacesAfterwards, 622 TransitionsBefore, 204 TransitionsAfterwards, 331100 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 401 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 421 TotalNumberOfCompositions, 579273 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 309541, independent: 308312, independent conditional: 0, independent unconditional: 308312, dependent: 1229, dependent conditional: 0, dependent unconditional: 1229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 161977, independent: 161522, independent conditional: 0, independent unconditional: 161522, dependent: 455, dependent conditional: 0, dependent unconditional: 455, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 309541, independent: 146790, independent conditional: 0, independent unconditional: 146790, dependent: 774, dependent conditional: 0, dependent unconditional: 774, unknown: 161977, unknown conditional: 0, unknown unconditional: 161977] , Statistics on independence cache: Total cache size (in pairs): 9004, Positive cache size: 8856, Positive conditional cache size: 0, Positive unconditional cache size: 8856, 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: 7.5s, 737 PlacesBefore, 311 PlacesAfterwards, 634 TransitionsBefore, 208 TransitionsAfterwards, 344454 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 409 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 429 TotalNumberOfCompositions, 605484 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 298563, independent: 297317, independent conditional: 0, independent unconditional: 297317, dependent: 1246, dependent conditional: 0, dependent unconditional: 1246, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 166765, independent: 166259, independent conditional: 0, independent unconditional: 166259, dependent: 506, dependent conditional: 0, dependent unconditional: 506, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 298563, independent: 131058, independent conditional: 0, independent unconditional: 131058, dependent: 740, dependent conditional: 0, dependent unconditional: 740, unknown: 166765, unknown conditional: 0, unknown unconditional: 166765] , Statistics on independence cache: Total cache size (in pairs): 7301, Positive cache size: 7114, Positive conditional cache size: 0, Positive unconditional cache size: 7114, Negative cache size: 187, Negative conditional cache size: 0, Negative unconditional cache size: 187, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.7s, 751 PlacesBefore, 317 PlacesAfterwards, 646 TransitionsBefore, 212 TransitionsAfterwards, 358072 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 417 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 437 TotalNumberOfCompositions, 649960 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 299633, independent: 298314, independent conditional: 0, independent unconditional: 298314, dependent: 1319, dependent conditional: 0, dependent unconditional: 1319, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 170319, independent: 169836, independent conditional: 0, independent unconditional: 169836, dependent: 483, dependent conditional: 0, dependent unconditional: 483, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 299633, independent: 128478, independent conditional: 0, independent unconditional: 128478, dependent: 836, dependent conditional: 0, dependent unconditional: 836, unknown: 170319, unknown conditional: 0, unknown unconditional: 170319] , Statistics on independence cache: Total cache size (in pairs): 4540, Positive cache size: 4385, Positive conditional cache size: 0, Positive unconditional cache size: 4385, Negative cache size: 155, Negative conditional cache size: 0, Negative unconditional cache size: 155, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 765 PlacesBefore, 323 PlacesAfterwards, 658 TransitionsBefore, 216 TransitionsAfterwards, 371954 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 425 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 445 TotalNumberOfCompositions, 597844 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 326685, independent: 325622, independent conditional: 0, independent unconditional: 325622, dependent: 1063, dependent conditional: 0, dependent unconditional: 1063, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 182562, independent: 182034, independent conditional: 0, independent unconditional: 182034, dependent: 528, dependent conditional: 0, dependent unconditional: 528, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 326685, independent: 143588, independent conditional: 0, independent unconditional: 143588, dependent: 535, dependent conditional: 0, dependent unconditional: 535, unknown: 182562, unknown conditional: 0, unknown unconditional: 182562] , Statistics on independence cache: Total cache size (in pairs): 10025, Positive cache size: 9867, Positive conditional cache size: 0, Positive unconditional cache size: 9867, Negative cache size: 158, Negative conditional cache size: 0, Negative unconditional cache size: 158, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8s, 779 PlacesBefore, 329 PlacesAfterwards, 670 TransitionsBefore, 220 TransitionsAfterwards, 386100 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 433 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 453 TotalNumberOfCompositions, 618835 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 324897, independent: 323834, independent conditional: 0, independent unconditional: 323834, dependent: 1063, dependent conditional: 0, dependent unconditional: 1063, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 187644, independent: 187113, independent conditional: 0, independent unconditional: 187113, dependent: 531, dependent conditional: 0, dependent unconditional: 531, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 324897, independent: 136721, independent conditional: 0, independent unconditional: 136721, dependent: 532, dependent conditional: 0, dependent unconditional: 532, unknown: 187644, unknown conditional: 0, unknown unconditional: 187644] , Statistics on independence cache: Total cache size (in pairs): 9019, Positive cache size: 8858, Positive conditional cache size: 0, Positive unconditional cache size: 8858, Negative cache size: 161, Negative conditional cache size: 0, Negative unconditional cache size: 161, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.2s, 793 PlacesBefore, 335 PlacesAfterwards, 682 TransitionsBefore, 224 TransitionsAfterwards, 400510 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 441 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 461 TotalNumberOfCompositions, 708130 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 362530, independent: 361185, independent conditional: 0, independent unconditional: 361185, dependent: 1345, dependent conditional: 0, dependent unconditional: 1345, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 196523, independent: 196094, independent conditional: 0, independent unconditional: 196094, dependent: 429, dependent conditional: 0, dependent unconditional: 429, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 362530, independent: 165091, independent conditional: 0, independent unconditional: 165091, dependent: 916, dependent conditional: 0, dependent unconditional: 916, unknown: 196523, unknown conditional: 0, unknown unconditional: 196523] , Statistics on independence cache: Total cache size (in pairs): 10930, Positive cache size: 10766, Positive conditional cache size: 0, Positive unconditional cache size: 10766, Negative cache size: 164, Negative conditional cache size: 0, Negative unconditional cache size: 164, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.2s, 807 PlacesBefore, 341 PlacesAfterwards, 694 TransitionsBefore, 228 TransitionsAfterwards, 415184 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 449 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 469 TotalNumberOfCompositions, 664300 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 367144, independent: 366034, independent conditional: 0, independent unconditional: 366034, dependent: 1110, dependent conditional: 0, dependent unconditional: 1110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 202411, independent: 201921, independent conditional: 0, independent unconditional: 201921, dependent: 490, dependent conditional: 0, dependent unconditional: 490, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 367144, independent: 164113, independent conditional: 0, independent unconditional: 164113, dependent: 620, dependent conditional: 0, dependent unconditional: 620, unknown: 202411, unknown conditional: 0, unknown unconditional: 202411] , Statistics on independence cache: Total cache size (in pairs): 10058, Positive cache size: 9891, Positive conditional cache size: 0, Positive unconditional cache size: 9891, Negative cache size: 167, Negative conditional cache size: 0, Negative unconditional cache size: 167, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5s, 821 PlacesBefore, 347 PlacesAfterwards, 706 TransitionsBefore, 232 TransitionsAfterwards, 430122 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 457 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 477 TotalNumberOfCompositions, 701897 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 377339, independent: 376192, independent conditional: 0, independent unconditional: 376192, dependent: 1147, dependent conditional: 0, dependent unconditional: 1147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 210654, independent: 210072, independent conditional: 0, independent unconditional: 210072, dependent: 582, dependent conditional: 0, dependent unconditional: 582, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 377339, independent: 166120, independent conditional: 0, independent unconditional: 166120, dependent: 565, dependent conditional: 0, dependent unconditional: 565, unknown: 210654, unknown conditional: 0, unknown unconditional: 210654] , Statistics on independence cache: Total cache size (in pairs): 11781, Positive cache size: 11611, Positive conditional cache size: 0, Positive unconditional cache size: 11611, Negative cache size: 170, Negative conditional cache size: 0, Negative unconditional cache size: 170, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7s, 835 PlacesBefore, 353 PlacesAfterwards, 718 TransitionsBefore, 236 TransitionsAfterwards, 445324 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 465 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 485 TotalNumberOfCompositions, 739240 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 389635, independent: 388434, independent conditional: 0, independent unconditional: 388434, dependent: 1201, dependent conditional: 0, dependent unconditional: 1201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 217849, independent: 217294, independent conditional: 0, independent unconditional: 217294, dependent: 555, dependent conditional: 0, dependent unconditional: 555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 389635, independent: 171140, independent conditional: 0, independent unconditional: 171140, dependent: 646, dependent conditional: 0, dependent unconditional: 646, unknown: 217849, unknown conditional: 0, unknown unconditional: 217849] , Statistics on independence cache: Total cache size (in pairs): 11902, Positive cache size: 11729, Positive conditional cache size: 0, Positive unconditional cache size: 11729, Negative cache size: 173, Negative conditional cache size: 0, Negative unconditional cache size: 173, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7s, 849 PlacesBefore, 359 PlacesAfterwards, 730 TransitionsBefore, 240 TransitionsAfterwards, 460790 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 473 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 493 TotalNumberOfCompositions, 759493 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 382486, independent: 381274, independent conditional: 0, independent unconditional: 381274, dependent: 1212, dependent conditional: 0, dependent unconditional: 1212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 221454, independent: 220842, independent conditional: 0, independent unconditional: 220842, dependent: 612, dependent conditional: 0, dependent unconditional: 612, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 382486, independent: 160432, independent conditional: 0, independent unconditional: 160432, dependent: 600, dependent conditional: 0, dependent unconditional: 600, unknown: 221454, unknown conditional: 0, unknown unconditional: 221454] , Statistics on independence cache: Total cache size (in pairs): 8303, Positive cache size: 8127, Positive conditional cache size: 0, Positive unconditional cache size: 8127, Negative cache size: 176, Negative conditional cache size: 0, Negative unconditional cache size: 176, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.8s, 863 PlacesBefore, 365 PlacesAfterwards, 742 TransitionsBefore, 244 TransitionsAfterwards, 476520 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 481 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 501 TotalNumberOfCompositions, 797539 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 413770, independent: 412507, independent conditional: 0, independent unconditional: 412507, dependent: 1263, dependent conditional: 0, dependent unconditional: 1263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 234097, independent: 233506, independent conditional: 0, independent unconditional: 233506, dependent: 591, dependent conditional: 0, dependent unconditional: 591, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 413770, independent: 179001, independent conditional: 0, independent unconditional: 179001, dependent: 672, dependent conditional: 0, dependent unconditional: 672, unknown: 234097, unknown conditional: 0, unknown unconditional: 234097] , Statistics on independence cache: Total cache size (in pairs): 12974, Positive cache size: 12795, Positive conditional cache size: 0, Positive unconditional cache size: 12795, Negative cache size: 179, Negative conditional cache size: 0, Negative unconditional cache size: 179, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.2s, 877 PlacesBefore, 371 PlacesAfterwards, 754 TransitionsBefore, 248 TransitionsAfterwards, 492514 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 489 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 509 TotalNumberOfCompositions, 808342 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 429698, independent: 428454, independent conditional: 0, independent unconditional: 428454, dependent: 1244, dependent conditional: 0, dependent unconditional: 1244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 239528, independent: 238888, independent conditional: 0, independent unconditional: 238888, dependent: 640, dependent conditional: 0, dependent unconditional: 640, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 429698, independent: 189566, independent conditional: 0, independent unconditional: 189566, dependent: 604, dependent conditional: 0, dependent unconditional: 604, unknown: 239528, unknown conditional: 0, unknown unconditional: 239528] , Statistics on independence cache: Total cache size (in pairs): 11927, Positive cache size: 11745, Positive conditional cache size: 0, Positive unconditional cache size: 11745, Negative cache size: 182, Negative conditional cache size: 0, Negative unconditional cache size: 182, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.2s, 891 PlacesBefore, 377 PlacesAfterwards, 766 TransitionsBefore, 252 TransitionsAfterwards, 508772 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 497 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 517 TotalNumberOfCompositions, 797884 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 406677, independent: 405417, independent conditional: 0, independent unconditional: 405417, dependent: 1260, dependent conditional: 0, dependent unconditional: 1260, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 251785, independent: 251145, independent conditional: 0, independent unconditional: 251145, dependent: 640, dependent conditional: 0, dependent unconditional: 640, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 406677, independent: 154272, independent conditional: 0, independent unconditional: 154272, dependent: 620, dependent conditional: 0, dependent unconditional: 620, unknown: 251785, unknown conditional: 0, unknown unconditional: 251785] , Statistics on independence cache: Total cache size (in pairs): 13845, Positive cache size: 13660, Positive conditional cache size: 0, Positive unconditional cache size: 13660, Negative cache size: 185, Negative conditional cache size: 0, Negative unconditional cache size: 185, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.4s, 905 PlacesBefore, 383 PlacesAfterwards, 778 TransitionsBefore, 256 TransitionsAfterwards, 525294 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 505 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 525 TotalNumberOfCompositions, 806137 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 414455, independent: 413189, independent conditional: 0, independent unconditional: 413189, dependent: 1266, dependent conditional: 0, dependent unconditional: 1266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 259909, independent: 259306, independent conditional: 0, independent unconditional: 259306, dependent: 603, dependent conditional: 0, dependent unconditional: 603, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 414455, independent: 153883, independent conditional: 0, independent unconditional: 153883, dependent: 663, dependent conditional: 0, dependent unconditional: 663, unknown: 259909, unknown conditional: 0, unknown unconditional: 259909] , Statistics on independence cache: Total cache size (in pairs): 13813, Positive cache size: 13625, Positive conditional cache size: 0, Positive unconditional cache size: 13625, Negative cache size: 188, Negative conditional cache size: 0, Negative unconditional cache size: 188, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.7s, 919 PlacesBefore, 389 PlacesAfterwards, 790 TransitionsBefore, 260 TransitionsAfterwards, 542080 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 513 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 533 TotalNumberOfCompositions, 878510 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 415750, independent: 414394, independent conditional: 0, independent unconditional: 414394, dependent: 1356, dependent conditional: 0, dependent unconditional: 1356, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 266641, independent: 265929, independent conditional: 0, independent unconditional: 265929, dependent: 712, dependent conditional: 0, dependent unconditional: 712, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 415750, independent: 148465, independent conditional: 0, independent unconditional: 148465, dependent: 644, dependent conditional: 0, dependent unconditional: 644, unknown: 266641, unknown conditional: 0, unknown unconditional: 266641] , Statistics on independence cache: Total cache size (in pairs): 12605, Positive cache size: 12396, Positive conditional cache size: 0, Positive unconditional cache size: 12396, Negative cache size: 209, Negative conditional cache size: 0, Negative unconditional cache size: 209, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.9s, 933 PlacesBefore, 395 PlacesAfterwards, 802 TransitionsBefore, 264 TransitionsAfterwards, 559130 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 521 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 541 TotalNumberOfCompositions, 864090 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 444856, independent: 443540, independent conditional: 0, independent unconditional: 443540, dependent: 1316, dependent conditional: 0, dependent unconditional: 1316, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 276581, independent: 275938, independent conditional: 0, independent unconditional: 275938, dependent: 643, dependent conditional: 0, dependent unconditional: 643, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 444856, independent: 167602, independent conditional: 0, independent unconditional: 167602, dependent: 673, dependent conditional: 0, dependent unconditional: 673, unknown: 276581, unknown conditional: 0, unknown unconditional: 276581] , Statistics on independence cache: Total cache size (in pairs): 15189, Positive cache size: 14995, Positive conditional cache size: 0, Positive unconditional cache size: 14995, Negative cache size: 194, Negative conditional cache size: 0, Negative unconditional cache size: 194, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.3s, 947 PlacesBefore, 401 PlacesAfterwards, 814 TransitionsBefore, 268 TransitionsAfterwards, 576444 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 529 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 549 TotalNumberOfCompositions, 914045 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 453565, independent: 452183, independent conditional: 0, independent unconditional: 452183, dependent: 1382, dependent conditional: 0, dependent unconditional: 1382, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 285046, independent: 284411, independent conditional: 0, independent unconditional: 284411, dependent: 635, dependent conditional: 0, dependent unconditional: 635, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 453565, independent: 167772, independent conditional: 0, independent unconditional: 167772, dependent: 747, dependent conditional: 0, dependent unconditional: 747, unknown: 285046, unknown conditional: 0, unknown unconditional: 285046] , Statistics on independence cache: Total cache size (in pairs): 14879, Positive cache size: 14682, Positive conditional cache size: 0, Positive unconditional cache size: 14682, Negative cache size: 197, Negative conditional cache size: 0, Negative unconditional cache size: 197, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.1s, 961 PlacesBefore, 407 PlacesAfterwards, 826 TransitionsBefore, 272 TransitionsAfterwards, 594022 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 537 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 557 TotalNumberOfCompositions, 910241 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 461600, independent: 460247, independent conditional: 0, independent unconditional: 460247, dependent: 1353, dependent conditional: 0, dependent unconditional: 1353, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 292330, independent: 291636, independent conditional: 0, independent unconditional: 291636, dependent: 694, dependent conditional: 0, dependent unconditional: 694, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 461600, independent: 168611, independent conditional: 0, independent unconditional: 168611, dependent: 659, dependent conditional: 0, dependent unconditional: 659, unknown: 292330, unknown conditional: 0, unknown unconditional: 292330] , Statistics on independence cache: Total cache size (in pairs): 13764, Positive cache size: 13564, Positive conditional cache size: 0, Positive unconditional cache size: 13564, Negative cache size: 200, Negative conditional cache size: 0, Negative unconditional cache size: 200, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.4s, 975 PlacesBefore, 413 PlacesAfterwards, 838 TransitionsBefore, 276 TransitionsAfterwards, 611864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 545 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 565 TotalNumberOfCompositions, 962376 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 490012, independent: 488595, independent conditional: 0, independent unconditional: 488595, dependent: 1417, dependent conditional: 0, dependent unconditional: 1417, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 302787, independent: 302091, independent conditional: 0, independent unconditional: 302091, dependent: 696, dependent conditional: 0, dependent unconditional: 696, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 490012, independent: 186504, independent conditional: 0, independent unconditional: 186504, dependent: 721, dependent conditional: 0, dependent unconditional: 721, unknown: 302787, unknown conditional: 0, unknown unconditional: 302787] , Statistics on independence cache: Total cache size (in pairs): 16619, Positive cache size: 16416, Positive conditional cache size: 0, Positive unconditional cache size: 16416, Negative cache size: 203, Negative conditional cache size: 0, Negative unconditional cache size: 203, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.9s, 989 PlacesBefore, 419 PlacesAfterwards, 850 TransitionsBefore, 280 TransitionsAfterwards, 629970 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 553 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 573 TotalNumberOfCompositions, 968529 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 493783, independent: 492390, independent conditional: 0, independent unconditional: 492390, dependent: 1393, dependent conditional: 0, dependent unconditional: 1393, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 310747, independent: 310082, independent conditional: 0, independent unconditional: 310082, dependent: 665, dependent conditional: 0, dependent unconditional: 665, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 493783, independent: 182308, independent conditional: 0, independent unconditional: 182308, dependent: 728, dependent conditional: 0, dependent unconditional: 728, unknown: 310747, unknown conditional: 0, unknown unconditional: 310747] , Statistics on independence cache: Total cache size (in pairs): 16840, Positive cache size: 16634, Positive conditional cache size: 0, Positive unconditional cache size: 16634, 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: 10.9s, 1003 PlacesBefore, 425 PlacesAfterwards, 862 TransitionsBefore, 284 TransitionsAfterwards, 648340 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 561 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 581 TotalNumberOfCompositions, 1010161 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 505312, independent: 503882, independent conditional: 0, independent unconditional: 503882, dependent: 1430, dependent conditional: 0, dependent unconditional: 1430, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 318623, independent: 317946, independent conditional: 0, independent unconditional: 317946, dependent: 677, dependent conditional: 0, dependent unconditional: 677, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 505312, independent: 185936, independent conditional: 0, independent unconditional: 185936, dependent: 753, dependent conditional: 0, dependent unconditional: 753, unknown: 318623, unknown conditional: 0, unknown unconditional: 318623] , Statistics on independence cache: Total cache size (in pairs): 15868, Positive cache size: 15659, Positive conditional cache size: 0, Positive unconditional cache size: 15659, Negative cache size: 209, Negative conditional cache size: 0, Negative unconditional cache size: 209, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.0s, 1017 PlacesBefore, 431 PlacesAfterwards, 874 TransitionsBefore, 288 TransitionsAfterwards, 666974 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 569 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 589 TotalNumberOfCompositions, 1006390 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 508484, independent: 507079, independent conditional: 0, independent unconditional: 507079, dependent: 1405, dependent conditional: 0, dependent unconditional: 1405, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 326710, independent: 325996, independent conditional: 0, independent unconditional: 325996, dependent: 714, dependent conditional: 0, dependent unconditional: 714, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 508484, independent: 181083, independent conditional: 0, independent unconditional: 181083, dependent: 691, dependent conditional: 0, dependent unconditional: 691, unknown: 326710, unknown conditional: 0, unknown unconditional: 326710] , Statistics on independence cache: Total cache size (in pairs): 13726, Positive cache size: 13514, Positive conditional cache size: 0, Positive unconditional cache size: 13514, Negative cache size: 212, Negative conditional cache size: 0, Negative unconditional cache size: 212, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.2s, 1031 PlacesBefore, 437 PlacesAfterwards, 886 TransitionsBefore, 292 TransitionsAfterwards, 685872 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 577 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 597 TotalNumberOfCompositions, 1069393 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 550603, independent: 549129, independent conditional: 0, independent unconditional: 549129, dependent: 1474, dependent conditional: 0, dependent unconditional: 1474, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 339151, independent: 338489, independent conditional: 0, independent unconditional: 338489, dependent: 662, dependent conditional: 0, dependent unconditional: 662, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 550603, independent: 210640, independent conditional: 0, independent unconditional: 210640, dependent: 812, dependent conditional: 0, dependent unconditional: 812, unknown: 339151, unknown conditional: 0, unknown unconditional: 339151] , Statistics on independence cache: Total cache size (in pairs): 18608, Positive cache size: 18393, Positive conditional cache size: 0, Positive unconditional cache size: 18393, Negative cache size: 215, Negative conditional cache size: 0, Negative unconditional cache size: 215, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4s, 1045 PlacesBefore, 443 PlacesAfterwards, 898 TransitionsBefore, 296 TransitionsAfterwards, 705034 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 585 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 605 TotalNumberOfCompositions, 1104899 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 544985, independent: 543483, independent conditional: 0, independent unconditional: 543483, dependent: 1502, dependent conditional: 0, dependent unconditional: 1502, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 347920, independent: 347219, independent conditional: 0, independent unconditional: 347219, dependent: 701, dependent conditional: 0, dependent unconditional: 701, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 544985, independent: 196264, independent conditional: 0, independent unconditional: 196264, dependent: 801, dependent conditional: 0, dependent unconditional: 801, unknown: 347920, unknown conditional: 0, unknown unconditional: 347920] , Statistics on independence cache: Total cache size (in pairs): 17940, Positive cache size: 17722, Positive conditional cache size: 0, Positive unconditional cache size: 17722, Negative cache size: 218, Negative conditional cache size: 0, Negative unconditional cache size: 218, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.7s, 1059 PlacesBefore, 449 PlacesAfterwards, 910 TransitionsBefore, 300 TransitionsAfterwards, 724460 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 593 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 613 TotalNumberOfCompositions, 1143135 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 605339, independent: 603810, independent conditional: 0, independent unconditional: 603810, dependent: 1529, dependent conditional: 0, dependent unconditional: 1529, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 357311, independent: 356504, independent conditional: 0, independent unconditional: 356504, dependent: 807, dependent conditional: 0, dependent unconditional: 807, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 605339, independent: 247306, independent conditional: 0, independent unconditional: 247306, dependent: 722, dependent conditional: 0, dependent unconditional: 722, unknown: 357311, unknown conditional: 0, unknown unconditional: 357311] , Statistics on independence cache: Total cache size (in pairs): 16983, Positive cache size: 16762, Positive conditional cache size: 0, Positive unconditional cache size: 16762, Negative cache size: 221, Negative conditional cache size: 0, Negative unconditional cache size: 221, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4s, 1073 PlacesBefore, 455 PlacesAfterwards, 922 TransitionsBefore, 304 TransitionsAfterwards, 744150 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 601 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 621 TotalNumberOfCompositions, 1158540 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 560158, independent: 558623, independent conditional: 0, independent unconditional: 558623, dependent: 1535, dependent conditional: 0, dependent unconditional: 1535, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 361376, independent: 360592, independent conditional: 0, independent unconditional: 360592, dependent: 784, dependent conditional: 0, dependent unconditional: 784, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 560158, independent: 198031, independent conditional: 0, independent unconditional: 198031, dependent: 751, dependent conditional: 0, dependent unconditional: 751, unknown: 361376, unknown conditional: 0, unknown unconditional: 361376] , Statistics on independence cache: Total cache size (in pairs): 14011, Positive cache size: 13787, Positive conditional cache size: 0, Positive unconditional cache size: 13787, Negative cache size: 224, Negative conditional cache size: 0, Negative unconditional cache size: 224, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5s, 1087 PlacesBefore, 461 PlacesAfterwards, 934 TransitionsBefore, 308 TransitionsAfterwards, 764104 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 609 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 629 TotalNumberOfCompositions, 1187996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 612686, independent: 611135, independent conditional: 0, independent unconditional: 611135, dependent: 1551, dependent conditional: 0, dependent unconditional: 1551, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 378071, independent: 377339, independent conditional: 0, independent unconditional: 377339, dependent: 732, dependent conditional: 0, dependent unconditional: 732, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 612686, independent: 233796, independent conditional: 0, independent unconditional: 233796, dependent: 819, dependent conditional: 0, dependent unconditional: 819, unknown: 378071, unknown conditional: 0, unknown unconditional: 378071] , Statistics on independence cache: Total cache size (in pairs): 20710, Positive cache size: 20483, Positive conditional cache size: 0, Positive unconditional cache size: 20483, Negative cache size: 227, Negative conditional cache size: 0, Negative unconditional cache size: 227, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.8s, 1101 PlacesBefore, 467 PlacesAfterwards, 946 TransitionsBefore, 312 TransitionsAfterwards, 784322 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 617 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 637 TotalNumberOfCompositions, 1199381 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 620569, independent: 619035, independent conditional: 0, independent unconditional: 619035, dependent: 1534, dependent conditional: 0, dependent unconditional: 1534, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 387385, independent: 386692, independent conditional: 0, independent unconditional: 386692, dependent: 693, dependent conditional: 0, dependent unconditional: 693, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 620569, independent: 232343, independent conditional: 0, independent unconditional: 232343, dependent: 841, dependent conditional: 0, dependent unconditional: 841, unknown: 387385, unknown conditional: 0, unknown unconditional: 387385] , Statistics on independence cache: Total cache size (in pairs): 20832, Positive cache size: 20602, Positive conditional cache size: 0, Positive unconditional cache size: 20602, Negative cache size: 230, Negative conditional cache size: 0, Negative unconditional cache size: 230, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.9s, 1115 PlacesBefore, 473 PlacesAfterwards, 958 TransitionsBefore, 316 TransitionsAfterwards, 804804 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 625 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 645 TotalNumberOfCompositions, 1233519 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 624962, independent: 623384, independent conditional: 0, independent unconditional: 623384, dependent: 1578, dependent conditional: 0, dependent unconditional: 1578, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 396128, independent: 395381, independent conditional: 0, independent unconditional: 395381, dependent: 747, dependent conditional: 0, dependent unconditional: 747, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 624962, independent: 228003, independent conditional: 0, independent unconditional: 228003, dependent: 831, dependent conditional: 0, dependent unconditional: 831, unknown: 396128, unknown conditional: 0, unknown unconditional: 396128] , Statistics on independence cache: Total cache size (in pairs): 19757, Positive cache size: 19524, Positive conditional cache size: 0, Positive unconditional cache size: 19524, Negative cache size: 233, Negative conditional cache size: 0, Negative unconditional cache size: 233, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3s, 1129 PlacesBefore, 479 PlacesAfterwards, 970 TransitionsBefore, 320 TransitionsAfterwards, 825550 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 633 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 653 TotalNumberOfCompositions, 1299240 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 622397, independent: 620759, independent conditional: 0, independent unconditional: 620759, dependent: 1638, dependent conditional: 0, dependent unconditional: 1638, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 404315, independent: 403536, independent conditional: 0, independent unconditional: 403536, dependent: 779, dependent conditional: 0, dependent unconditional: 779, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 622397, independent: 217223, independent conditional: 0, independent unconditional: 217223, dependent: 859, dependent conditional: 0, dependent unconditional: 859, unknown: 404315, unknown conditional: 0, unknown unconditional: 404315] , Statistics on independence cache: Total cache size (in pairs): 19031, Positive cache size: 18795, Positive conditional cache size: 0, Positive unconditional cache size: 18795, Negative cache size: 236, Negative conditional cache size: 0, Negative unconditional cache size: 236, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3s, 1143 PlacesBefore, 485 PlacesAfterwards, 982 TransitionsBefore, 324 TransitionsAfterwards, 846560 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 641 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 661 TotalNumberOfCompositions, 1321416 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 620212, independent: 618573, independent conditional: 0, independent unconditional: 618573, dependent: 1639, dependent conditional: 0, dependent unconditional: 1639, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 405727, independent: 404974, independent conditional: 0, independent unconditional: 404974, dependent: 753, dependent conditional: 0, dependent unconditional: 753, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 620212, independent: 213599, independent conditional: 0, independent unconditional: 213599, dependent: 886, dependent conditional: 0, dependent unconditional: 886, unknown: 405727, unknown conditional: 0, unknown unconditional: 405727] , Statistics on independence cache: Total cache size (in pairs): 10205, Positive cache size: 9966, Positive conditional cache size: 0, Positive unconditional cache size: 9966, Negative cache size: 239, Negative conditional cache size: 0, Negative unconditional cache size: 239, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.5s, 1157 PlacesBefore, 491 PlacesAfterwards, 994 TransitionsBefore, 328 TransitionsAfterwards, 867834 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 649 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 669 TotalNumberOfCompositions, 1382825 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 695422, independent: 693729, independent conditional: 0, independent unconditional: 693729, dependent: 1693, dependent conditional: 0, dependent unconditional: 1693, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 428169, independent: 427388, independent conditional: 0, independent unconditional: 427388, dependent: 781, dependent conditional: 0, dependent unconditional: 781, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 695422, independent: 266341, independent conditional: 0, independent unconditional: 266341, dependent: 912, dependent conditional: 0, dependent unconditional: 912, unknown: 428169, unknown conditional: 0, unknown unconditional: 428169] , Statistics on independence cache: Total cache size (in pairs): 23499, Positive cache size: 23257, Positive conditional cache size: 0, Positive unconditional cache size: 23257, Negative cache size: 242, Negative conditional cache size: 0, Negative unconditional cache size: 242, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.8s, 1171 PlacesBefore, 497 PlacesAfterwards, 1006 TransitionsBefore, 332 TransitionsAfterwards, 889372 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 657 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 677 TotalNumberOfCompositions, 1390165 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 702206, independent: 700551, independent conditional: 0, independent unconditional: 700551, dependent: 1655, dependent conditional: 0, dependent unconditional: 1655, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 438645, independent: 437969, independent conditional: 0, independent unconditional: 437969, dependent: 676, dependent conditional: 0, dependent unconditional: 676, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 702206, independent: 262582, independent conditional: 0, independent unconditional: 262582, dependent: 979, dependent conditional: 0, dependent unconditional: 979, unknown: 438645, unknown conditional: 0, unknown unconditional: 438645] , Statistics on independence cache: Total cache size (in pairs): 23657, Positive cache size: 23412, Positive conditional cache size: 0, Positive unconditional cache size: 23412, Negative cache size: 245, Negative conditional cache size: 0, Negative unconditional cache size: 245, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0s, 1185 PlacesBefore, 503 PlacesAfterwards, 1018 TransitionsBefore, 336 TransitionsAfterwards, 911174 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 665 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 685 TotalNumberOfCompositions, 1373891 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 712724, independent: 711090, independent conditional: 0, independent unconditional: 711090, dependent: 1634, dependent conditional: 0, dependent unconditional: 1634, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 448637, independent: 447818, independent conditional: 0, independent unconditional: 447818, dependent: 819, dependent conditional: 0, dependent unconditional: 819, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 712724, independent: 263272, independent conditional: 0, independent unconditional: 263272, dependent: 815, dependent conditional: 0, dependent unconditional: 815, unknown: 448637, unknown conditional: 0, unknown unconditional: 448637] , Statistics on independence cache: Total cache size (in pairs): 23209, Positive cache size: 22961, Positive conditional cache size: 0, Positive unconditional cache size: 22961, 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: 12.8s, 1199 PlacesBefore, 509 PlacesAfterwards, 1030 TransitionsBefore, 340 TransitionsAfterwards, 933240 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 673 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 693 TotalNumberOfCompositions, 1473810 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 725683, independent: 723949, independent conditional: 0, independent unconditional: 723949, dependent: 1734, dependent conditional: 0, dependent unconditional: 1734, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 457307, independent: 456452, independent conditional: 0, independent unconditional: 456452, dependent: 855, dependent conditional: 0, dependent unconditional: 855, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 725683, independent: 267497, independent conditional: 0, independent unconditional: 267497, dependent: 879, dependent conditional: 0, dependent unconditional: 879, unknown: 457307, unknown conditional: 0, unknown unconditional: 457307] , Statistics on independence cache: Total cache size (in pairs): 21830, Positive cache size: 21579, Positive conditional cache size: 0, Positive unconditional cache size: 21579, Negative cache size: 251, Negative conditional cache size: 0, Negative unconditional cache size: 251, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.9s, 1213 PlacesBefore, 515 PlacesAfterwards, 1042 TransitionsBefore, 344 TransitionsAfterwards, 955570 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 681 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 701 TotalNumberOfCompositions, 1469183 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 724513, independent: 722800, independent conditional: 0, independent unconditional: 722800, dependent: 1713, dependent conditional: 0, dependent unconditional: 1713, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 469283, independent: 468440, independent conditional: 0, independent unconditional: 468440, dependent: 843, dependent conditional: 0, dependent unconditional: 843, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 724513, independent: 254360, independent conditional: 0, independent unconditional: 254360, dependent: 870, dependent conditional: 0, dependent unconditional: 870, unknown: 469283, unknown conditional: 0, unknown unconditional: 469283] , Statistics on independence cache: Total cache size (in pairs): 21997, Positive cache size: 21743, Positive conditional cache size: 0, Positive unconditional cache size: 21743, Negative cache size: 254, Negative conditional cache size: 0, Negative unconditional cache size: 254, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.6s, 1227 PlacesBefore, 521 PlacesAfterwards, 1054 TransitionsBefore, 348 TransitionsAfterwards, 978164 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 689 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 709 TotalNumberOfCompositions, 1550368 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 741342, independent: 739576, independent conditional: 0, independent unconditional: 739576, dependent: 1766, dependent conditional: 0, dependent unconditional: 1766, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 476318, independent: 475516, independent conditional: 0, independent unconditional: 475516, dependent: 802, dependent conditional: 0, dependent unconditional: 802, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 741342, independent: 264060, independent conditional: 0, independent unconditional: 264060, dependent: 964, dependent conditional: 0, dependent unconditional: 964, unknown: 476318, unknown conditional: 0, unknown unconditional: 476318] , Statistics on independence cache: Total cache size (in pairs): 19589, Positive cache size: 19332, Positive conditional cache size: 0, Positive unconditional cache size: 19332, Negative cache size: 257, Negative conditional cache size: 0, Negative unconditional cache size: 257, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.0s, 1241 PlacesBefore, 527 PlacesAfterwards, 1066 TransitionsBefore, 352 TransitionsAfterwards, 1001022 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 697 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 717 TotalNumberOfCompositions, 1575663 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 725821, independent: 724017, independent conditional: 0, independent unconditional: 724017, dependent: 1804, dependent conditional: 0, dependent unconditional: 1804, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 479415, independent: 478529, independent conditional: 0, independent unconditional: 478529, dependent: 886, dependent conditional: 0, dependent unconditional: 886, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 725821, independent: 245488, independent conditional: 0, independent unconditional: 245488, dependent: 918, dependent conditional: 0, dependent unconditional: 918, unknown: 479415, unknown conditional: 0, unknown unconditional: 479415] , Statistics on independence cache: Total cache size (in pairs): 12302, Positive cache size: 11991, Positive conditional cache size: 0, Positive unconditional cache size: 11991, Negative cache size: 311, Negative conditional cache size: 0, Negative unconditional cache size: 311, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.4s, 1255 PlacesBefore, 533 PlacesAfterwards, 1078 TransitionsBefore, 356 TransitionsAfterwards, 1024144 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 705 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 725 TotalNumberOfCompositions, 1604753 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 830947, independent: 829127, independent conditional: 0, independent unconditional: 829127, dependent: 1820, dependent conditional: 0, dependent unconditional: 1820, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 506217, independent: 505465, independent conditional: 0, independent unconditional: 505465, dependent: 752, dependent conditional: 0, dependent unconditional: 752, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 830947, independent: 323662, independent conditional: 0, independent unconditional: 323662, dependent: 1068, dependent conditional: 0, dependent unconditional: 1068, unknown: 506217, unknown conditional: 0, unknown unconditional: 506217] , Statistics on independence cache: Total cache size (in pairs): 27685, Positive cache size: 27422, Positive conditional cache size: 0, Positive unconditional cache size: 27422, Negative cache size: 263, Negative conditional cache size: 0, Negative unconditional cache size: 263, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while CegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 1269 places, 1090 transitions, 10457 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 1269 places, 1090 transitions, 10457 flow and 1047530 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown