/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:31:17,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:31:17,076 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-NoLbe.epf [2023-12-09 15:31:17,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:31:17,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:31:17,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:31:17,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:31:17,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:31:17,099 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:31:17,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:31:17,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:31:17,100 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:31:17,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:31:17,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:31:17,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:31:17,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:31:17,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:31:17,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:31:17,102 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:31:17,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:31:17,102 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:31:17,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:31:17,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:31:17,103 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:31:17,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:31:17,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:31:17,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:31:17,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:31:17,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:31:17,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:31:17,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:31:17,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:31:17,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:31:17,105 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:31:17,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:31:17,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:31:17,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:31:17,363 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:31:17,363 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:31:17,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c [2023-12-09 15:31:18,495 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:31:18,712 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:31:18,713 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c [2023-12-09 15:31:18,721 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57898c4c3/f3ee9b34a3ae47f0a71e529806d937ed/FLAGa1bb93e03 [2023-12-09 15:31:19,073 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57898c4c3/f3ee9b34a3ae47f0a71e529806d937ed [2023-12-09 15:31:19,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:31:19,076 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:31:19,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:31:19,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:31:19,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:31:19,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592033fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19, skipping insertion in model container [2023-12-09 15:31:19,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:31:19,240 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c[2630,2643] [2023-12-09 15:31:19,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:31:19,251 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:31:19,274 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c[2630,2643] [2023-12-09 15:31:19,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:31:19,288 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:31:19,289 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:31:19,295 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:31:19,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19 WrapperNode [2023-12-09 15:31:19,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:31:19,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:31:19,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:31:19,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:31:19,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,310 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,328 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2023-12-09 15:31:19,329 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:31:19,330 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:31:19,330 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:31:19,330 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:31:19,336 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,344 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,348 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:31:19,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:31:19,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:31:19,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:31:19,352 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (1/1) ... [2023-12-09 15:31:19,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:31:19,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:31:19,380 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) [2023-12-09 15:31:19,382 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 [2023-12-09 15:31:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:31:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:31:19,404 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:31:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:31:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:31:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:31:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:31:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:31:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:31:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:31:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:31:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:31:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:31:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:31:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:31:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:31:19,408 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:31:19,500 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:31:19,502 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:31:19,766 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:31:19,817 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:31:19,818 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-09 15:31:19,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:31:19 BoogieIcfgContainer [2023-12-09 15:31:19,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:31:19,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:31:19,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:31:19,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:31:19,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:31:19" (1/3) ... [2023-12-09 15:31:19,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7784aed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:31:19, skipping insertion in model container [2023-12-09 15:31:19,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:31:19" (2/3) ... [2023-12-09 15:31:19,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7784aed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:31:19, skipping insertion in model container [2023-12-09 15:31:19,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:31:19" (3/3) ... [2023-12-09 15:31:19,827 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-equiv.wvr.c [2023-12-09 15:31:19,841 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:31:19,842 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:31:19,842 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:31:19,907 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-09 15:31:19,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 98 transitions, 217 flow [2023-12-09 15:31:20,017 INFO L124 PetriNetUnfolderBase]: 7/95 cut-off events. [2023-12-09 15:31:20,017 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:31:20,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 7/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-12-09 15:31:20,022 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 98 transitions, 217 flow [2023-12-09 15:31:20,025 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 84 transitions, 186 flow [2023-12-09 15:31:20,033 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:31:20,039 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@25c7b495, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:31:20,040 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 15:31:20,065 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:31:20,065 INFO L124 PetriNetUnfolderBase]: 7/83 cut-off events. [2023-12-09 15:31:20,065 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:31:20,066 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:20,066 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:20,067 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:20,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:20,074 INFO L85 PathProgramCache]: Analyzing trace with hash -922399406, now seen corresponding path program 1 times [2023-12-09 15:31:20,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:20,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615304583] [2023-12-09 15:31:20,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:20,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:21,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:21,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:21,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615304583] [2023-12-09 15:31:21,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615304583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:21,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:21,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:31:21,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220969673] [2023-12-09 15:31:21,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:21,111 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:31:21,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:21,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:31:21,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:31:21,147 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 98 [2023-12-09 15:31:21,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 84 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:21,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:21,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 98 [2023-12-09 15:31:21,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:21,346 INFO L124 PetriNetUnfolderBase]: 42/226 cut-off events. [2023-12-09 15:31:21,346 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-12-09 15:31:21,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 226 events. 42/226 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 683 event pairs, 2 based on Foata normal form. 46/253 useless extension candidates. Maximal degree in co-relation 159. Up to 58 conditions per place. [2023-12-09 15:31:21,352 INFO L140 encePairwiseOnDemand]: 85/98 looper letters, 29 selfloop transitions, 7 changer transitions 7/105 dead transitions. [2023-12-09 15:31:21,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 105 transitions, 338 flow [2023-12-09 15:31:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:31:21,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:31:21,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 656 transitions. [2023-12-09 15:31:21,377 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8367346938775511 [2023-12-09 15:31:21,378 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 656 transitions. [2023-12-09 15:31:21,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 656 transitions. [2023-12-09 15:31:21,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:21,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 656 transitions. [2023-12-09 15:31:21,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:21,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:21,398 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:21,403 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 7 predicate places. [2023-12-09 15:31:21,403 INFO L500 AbstractCegarLoop]: Abstraction has has 94 places, 105 transitions, 338 flow [2023-12-09 15:31:21,404 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:21,404 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:21,405 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:21,405 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:31:21,406 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:21,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:21,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1989939415, now seen corresponding path program 1 times [2023-12-09 15:31:21,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:21,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743781734] [2023-12-09 15:31:21,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:21,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:21,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:21,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:21,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743781734] [2023-12-09 15:31:21,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743781734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:21,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:21,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:31:21,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071110687] [2023-12-09 15:31:21,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:21,840 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:31:21,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:21,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:31:21,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:31:21,842 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 98 [2023-12-09 15:31:21,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 105 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:21,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:21,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 98 [2023-12-09 15:31:21,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:22,201 INFO L124 PetriNetUnfolderBase]: 346/923 cut-off events. [2023-12-09 15:31:22,201 INFO L125 PetriNetUnfolderBase]: For 513/595 co-relation queries the response was YES. [2023-12-09 15:31:22,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 923 events. 346/923 cut-off events. For 513/595 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5479 event pairs, 69 based on Foata normal form. 19/800 useless extension candidates. Maximal degree in co-relation 1313. Up to 294 conditions per place. [2023-12-09 15:31:22,211 INFO L140 encePairwiseOnDemand]: 87/98 looper letters, 67 selfloop transitions, 16 changer transitions 7/154 dead transitions. [2023-12-09 15:31:22,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 154 transitions, 692 flow [2023-12-09 15:31:22,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:31:22,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:31:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 572 transitions. [2023-12-09 15:31:22,214 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8338192419825073 [2023-12-09 15:31:22,214 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 572 transitions. [2023-12-09 15:31:22,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 572 transitions. [2023-12-09 15:31:22,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:22,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 572 transitions. [2023-12-09 15:31:22,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:22,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:22,218 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:22,219 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 13 predicate places. [2023-12-09 15:31:22,219 INFO L500 AbstractCegarLoop]: Abstraction has has 100 places, 154 transitions, 692 flow [2023-12-09 15:31:22,220 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:22,220 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:22,220 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:22,220 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:31:22,220 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:22,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash -865516471, now seen corresponding path program 2 times [2023-12-09 15:31:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:22,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307062771] [2023-12-09 15:31:22,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:22,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:22,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:22,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:22,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307062771] [2023-12-09 15:31:22,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307062771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:22,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:22,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:31:22,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293937605] [2023-12-09 15:31:22,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:22,627 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:31:22,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:22,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:31:22,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:31:22,632 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 98 [2023-12-09 15:31:22,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 154 transitions, 692 flow. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:22,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:22,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 98 [2023-12-09 15:31:22,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:22,866 INFO L124 PetriNetUnfolderBase]: 435/1116 cut-off events. [2023-12-09 15:31:22,866 INFO L125 PetriNetUnfolderBase]: For 896/1247 co-relation queries the response was YES. [2023-12-09 15:31:22,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2921 conditions, 1116 events. 435/1116 cut-off events. For 896/1247 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6945 event pairs, 66 based on Foata normal form. 37/993 useless extension candidates. Maximal degree in co-relation 2264. Up to 451 conditions per place. [2023-12-09 15:31:22,877 INFO L140 encePairwiseOnDemand]: 89/98 looper letters, 105 selfloop transitions, 23 changer transitions 7/199 dead transitions. [2023-12-09 15:31:22,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 199 transitions, 1178 flow [2023-12-09 15:31:22,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:31:22,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:31:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 495 transitions. [2023-12-09 15:31:22,880 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8418367346938775 [2023-12-09 15:31:22,880 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 495 transitions. [2023-12-09 15:31:22,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 495 transitions. [2023-12-09 15:31:22,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:22,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 495 transitions. [2023-12-09 15:31:22,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:22,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:22,884 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:22,886 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 18 predicate places. [2023-12-09 15:31:22,886 INFO L500 AbstractCegarLoop]: Abstraction has has 105 places, 199 transitions, 1178 flow [2023-12-09 15:31:22,886 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:22,886 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:22,887 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:22,887 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:31:22,887 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:22,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:22,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1757610033, now seen corresponding path program 3 times [2023-12-09 15:31:22,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:22,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012586083] [2023-12-09 15:31:22,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:22,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:23,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:23,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012586083] [2023-12-09 15:31:23,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012586083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:23,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:23,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:31:23,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405990142] [2023-12-09 15:31:23,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:23,184 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:31:23,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:23,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:31:23,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:31:23,188 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 98 [2023-12-09 15:31:23,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 199 transitions, 1178 flow. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:23,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:23,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 98 [2023-12-09 15:31:23,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:23,409 INFO L124 PetriNetUnfolderBase]: 539/1239 cut-off events. [2023-12-09 15:31:23,409 INFO L125 PetriNetUnfolderBase]: For 1606/3256 co-relation queries the response was YES. [2023-12-09 15:31:23,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4231 conditions, 1239 events. 539/1239 cut-off events. For 1606/3256 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 7504 event pairs, 56 based on Foata normal form. 31/1103 useless extension candidates. Maximal degree in co-relation 3541. Up to 600 conditions per place. [2023-12-09 15:31:23,423 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 153 selfloop transitions, 27 changer transitions 8/252 dead transitions. [2023-12-09 15:31:23,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 252 transitions, 1910 flow [2023-12-09 15:31:23,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:31:23,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:31:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 488 transitions. [2023-12-09 15:31:23,425 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8299319727891157 [2023-12-09 15:31:23,425 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 488 transitions. [2023-12-09 15:31:23,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 488 transitions. [2023-12-09 15:31:23,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:23,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 488 transitions. [2023-12-09 15:31:23,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.33333333333333) internal successors, (488), 6 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:23,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:23,430 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:23,432 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 23 predicate places. [2023-12-09 15:31:23,432 INFO L500 AbstractCegarLoop]: Abstraction has has 110 places, 252 transitions, 1910 flow [2023-12-09 15:31:23,433 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:23,433 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:23,433 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:23,433 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:31:23,433 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:23,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:23,434 INFO L85 PathProgramCache]: Analyzing trace with hash -2089129529, now seen corresponding path program 4 times [2023-12-09 15:31:23,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:23,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608597032] [2023-12-09 15:31:23,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:23,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:23,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:23,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:23,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608597032] [2023-12-09 15:31:23,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608597032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:23,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:23,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:31:23,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990782883] [2023-12-09 15:31:23,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:23,649 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:31:23,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:23,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:31:23,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:31:23,651 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 98 [2023-12-09 15:31:23,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 252 transitions, 1910 flow. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:23,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:23,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 98 [2023-12-09 15:31:23,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:23,975 INFO L124 PetriNetUnfolderBase]: 542/1202 cut-off events. [2023-12-09 15:31:23,975 INFO L125 PetriNetUnfolderBase]: For 1931/4084 co-relation queries the response was YES. [2023-12-09 15:31:23,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5022 conditions, 1202 events. 542/1202 cut-off events. For 1931/4084 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 7152 event pairs, 40 based on Foata normal form. 26/1078 useless extension candidates. Maximal degree in co-relation 4667. Up to 604 conditions per place. [2023-12-09 15:31:23,990 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 162 selfloop transitions, 49 changer transitions 7/276 dead transitions. [2023-12-09 15:31:23,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 276 transitions, 2547 flow [2023-12-09 15:31:23,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:31:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:31:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 647 transitions. [2023-12-09 15:31:23,992 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8252551020408163 [2023-12-09 15:31:23,993 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 647 transitions. [2023-12-09 15:31:23,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 647 transitions. [2023-12-09 15:31:23,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:23,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 647 transitions. [2023-12-09 15:31:23,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 80.875) internal successors, (647), 8 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:23,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:23,996 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:23,998 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 29 predicate places. [2023-12-09 15:31:23,998 INFO L500 AbstractCegarLoop]: Abstraction has has 116 places, 276 transitions, 2547 flow [2023-12-09 15:31:23,999 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:23,999 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:23,999 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:23,999 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:31:23,999 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:24,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:24,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1217676240, now seen corresponding path program 1 times [2023-12-09 15:31:24,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:24,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805790550] [2023-12-09 15:31:24,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:24,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:24,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:24,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:24,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805790550] [2023-12-09 15:31:24,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805790550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:24,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:24,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:31:24,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004418332] [2023-12-09 15:31:24,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:24,357 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:31:24,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:24,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:31:24,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:31:24,359 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2023-12-09 15:31:24,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 276 transitions, 2547 flow. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:24,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:24,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2023-12-09 15:31:24,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:24,868 INFO L124 PetriNetUnfolderBase]: 1436/3060 cut-off events. [2023-12-09 15:31:24,868 INFO L125 PetriNetUnfolderBase]: For 9862/15639 co-relation queries the response was YES. [2023-12-09 15:31:24,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14031 conditions, 3060 events. 1436/3060 cut-off events. For 9862/15639 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 22410 event pairs, 89 based on Foata normal form. 21/2549 useless extension candidates. Maximal degree in co-relation 12052. Up to 1468 conditions per place. [2023-12-09 15:31:24,911 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 216 selfloop transitions, 157 changer transitions 9/468 dead transitions. [2023-12-09 15:31:24,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 468 transitions, 5534 flow [2023-12-09 15:31:24,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:31:24,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:31:24,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 419 transitions. [2023-12-09 15:31:24,913 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8551020408163266 [2023-12-09 15:31:24,913 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 419 transitions. [2023-12-09 15:31:24,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 419 transitions. [2023-12-09 15:31:24,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:24,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 419 transitions. [2023-12-09 15:31:24,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:24,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:24,917 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:24,918 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 33 predicate places. [2023-12-09 15:31:24,919 INFO L500 AbstractCegarLoop]: Abstraction has has 120 places, 468 transitions, 5534 flow [2023-12-09 15:31:24,919 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:24,919 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:24,919 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:24,919 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:31:24,919 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:24,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:24,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1152517563, now seen corresponding path program 1 times [2023-12-09 15:31:24,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:24,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679951055] [2023-12-09 15:31:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:24,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:25,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:25,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679951055] [2023-12-09 15:31:25,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679951055] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:31:25,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147263048] [2023-12-09 15:31:25,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:25,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:31:25,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:31:25,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:31:25,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:31:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:25,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-09 15:31:25,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:31:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:25,748 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:31:26,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:26,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147263048] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:31:26,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:31:26,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 16 [2023-12-09 15:31:26,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639607165] [2023-12-09 15:31:26,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:31:26,173 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-09 15:31:26,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:26,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-09 15:31:26,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-12-09 15:31:26,177 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 98 [2023-12-09 15:31:26,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 468 transitions, 5534 flow. Second operand has 16 states, 16 states have (on average 67.0) internal successors, (1072), 16 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:26,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:26,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 98 [2023-12-09 15:31:26,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:27,190 INFO L124 PetriNetUnfolderBase]: 1851/4018 cut-off events. [2023-12-09 15:31:27,190 INFO L125 PetriNetUnfolderBase]: For 15858/24291 co-relation queries the response was YES. [2023-12-09 15:31:27,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21469 conditions, 4018 events. 1851/4018 cut-off events. For 15858/24291 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 31279 event pairs, 115 based on Foata normal form. 135/3487 useless extension candidates. Maximal degree in co-relation 17938. Up to 2066 conditions per place. [2023-12-09 15:31:27,244 INFO L140 encePairwiseOnDemand]: 84/98 looper letters, 471 selfloop transitions, 170 changer transitions 27/723 dead transitions. [2023-12-09 15:31:27,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 723 transitions, 10231 flow [2023-12-09 15:31:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:31:27,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:31:27,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1333 transitions. [2023-12-09 15:31:27,249 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7158968850698174 [2023-12-09 15:31:27,249 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1333 transitions. [2023-12-09 15:31:27,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1333 transitions. [2023-12-09 15:31:27,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:27,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1333 transitions. [2023-12-09 15:31:27,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 70.15789473684211) internal successors, (1333), 19 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:27,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 98.0) internal successors, (1960), 20 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:27,258 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 98.0) internal successors, (1960), 20 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:27,259 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 51 predicate places. [2023-12-09 15:31:27,259 INFO L500 AbstractCegarLoop]: Abstraction has has 138 places, 723 transitions, 10231 flow [2023-12-09 15:31:27,259 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 67.0) internal successors, (1072), 16 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:27,259 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:27,259 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:27,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-09 15:31:27,465 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:31:27,466 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:27,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:27,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1378040788, now seen corresponding path program 2 times [2023-12-09 15:31:27,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:27,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266916905] [2023-12-09 15:31:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:27,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:27,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:27,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266916905] [2023-12-09 15:31:27,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266916905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:27,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:27,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:31:27,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462444346] [2023-12-09 15:31:27,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:27,712 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:31:27,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:27,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:31:27,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:31:27,714 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2023-12-09 15:31:27,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 723 transitions, 10231 flow. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:27,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:27,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2023-12-09 15:31:27,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:28,704 INFO L124 PetriNetUnfolderBase]: 2197/5027 cut-off events. [2023-12-09 15:31:28,704 INFO L125 PetriNetUnfolderBase]: For 26111/40715 co-relation queries the response was YES. [2023-12-09 15:31:28,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29455 conditions, 5027 events. 2197/5027 cut-off events. For 26111/40715 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 42660 event pairs, 87 based on Foata normal form. 142/4372 useless extension candidates. Maximal degree in co-relation 23232. Up to 2598 conditions per place. [2023-12-09 15:31:28,764 INFO L140 encePairwiseOnDemand]: 88/98 looper letters, 538 selfloop transitions, 245 changer transitions 55/932 dead transitions. [2023-12-09 15:31:28,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 932 transitions, 15263 flow [2023-12-09 15:31:28,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:31:28,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:31:28,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 492 transitions. [2023-12-09 15:31:28,767 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8367346938775511 [2023-12-09 15:31:28,767 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 492 transitions. [2023-12-09 15:31:28,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 492 transitions. [2023-12-09 15:31:28,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:28,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 492 transitions. [2023-12-09 15:31:28,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:28,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:28,770 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:28,771 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 56 predicate places. [2023-12-09 15:31:28,771 INFO L500 AbstractCegarLoop]: Abstraction has has 143 places, 932 transitions, 15263 flow [2023-12-09 15:31:28,771 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:28,772 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:28,772 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:28,772 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:31:28,772 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:28,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:28,772 INFO L85 PathProgramCache]: Analyzing trace with hash 236079784, now seen corresponding path program 3 times [2023-12-09 15:31:28,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:28,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967165606] [2023-12-09 15:31:28,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:28,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:29,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:29,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:29,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967165606] [2023-12-09 15:31:29,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967165606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:29,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:29,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:31:29,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019477357] [2023-12-09 15:31:29,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:29,043 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:31:29,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:29,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:31:29,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:31:29,044 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2023-12-09 15:31:29,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 932 transitions, 15263 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:29,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:29,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2023-12-09 15:31:29,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:30,551 INFO L124 PetriNetUnfolderBase]: 2816/6387 cut-off events. [2023-12-09 15:31:30,551 INFO L125 PetriNetUnfolderBase]: For 38121/52056 co-relation queries the response was YES. [2023-12-09 15:31:30,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41647 conditions, 6387 events. 2816/6387 cut-off events. For 38121/52056 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 56861 event pairs, 69 based on Foata normal form. 259/5748 useless extension candidates. Maximal degree in co-relation 38530. Up to 3385 conditions per place. [2023-12-09 15:31:30,640 INFO L140 encePairwiseOnDemand]: 89/98 looper letters, 761 selfloop transitions, 401 changer transitions 70/1326 dead transitions. [2023-12-09 15:31:30,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 1326 transitions, 24643 flow [2023-12-09 15:31:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:31:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:31:30,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 592 transitions. [2023-12-09 15:31:30,642 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8629737609329446 [2023-12-09 15:31:30,642 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 592 transitions. [2023-12-09 15:31:30,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 592 transitions. [2023-12-09 15:31:30,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:30,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 592 transitions. [2023-12-09 15:31:30,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 84.57142857142857) internal successors, (592), 7 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:30,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:30,646 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:30,647 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 62 predicate places. [2023-12-09 15:31:30,647 INFO L500 AbstractCegarLoop]: Abstraction has has 149 places, 1326 transitions, 24643 flow [2023-12-09 15:31:30,647 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:30,648 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:30,648 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:30,648 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:31:30,648 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:30,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:30,649 INFO L85 PathProgramCache]: Analyzing trace with hash 273882320, now seen corresponding path program 4 times [2023-12-09 15:31:30,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:30,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634108941] [2023-12-09 15:31:30,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:30,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:30,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634108941] [2023-12-09 15:31:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634108941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:30,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:30,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:31:30,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613382234] [2023-12-09 15:31:30,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:30,933 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:31:30,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:30,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:31:30,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:31:30,934 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2023-12-09 15:31:30,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 1326 transitions, 24643 flow. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:30,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:30,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2023-12-09 15:31:30,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:32,308 INFO L124 PetriNetUnfolderBase]: 2718/6025 cut-off events. [2023-12-09 15:31:32,308 INFO L125 PetriNetUnfolderBase]: For 43050/62712 co-relation queries the response was YES. [2023-12-09 15:31:32,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43436 conditions, 6025 events. 2718/6025 cut-off events. For 43050/62712 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 51971 event pairs, 78 based on Foata normal form. 297/5432 useless extension candidates. Maximal degree in co-relation 35922. Up to 3218 conditions per place. [2023-12-09 15:31:32,400 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 753 selfloop transitions, 339 changer transitions 64/1250 dead transitions. [2023-12-09 15:31:32,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 1250 transitions, 25305 flow [2023-12-09 15:31:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:31:32,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:31:32,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 421 transitions. [2023-12-09 15:31:32,402 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8591836734693877 [2023-12-09 15:31:32,402 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 421 transitions. [2023-12-09 15:31:32,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 421 transitions. [2023-12-09 15:31:32,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:32,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 421 transitions. [2023-12-09 15:31:32,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:32,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:32,404 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:32,405 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 66 predicate places. [2023-12-09 15:31:32,405 INFO L500 AbstractCegarLoop]: Abstraction has has 153 places, 1250 transitions, 25305 flow [2023-12-09 15:31:32,405 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:32,405 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:32,405 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:32,405 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:31:32,405 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:32,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:32,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1483815632, now seen corresponding path program 5 times [2023-12-09 15:31:32,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:32,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789447487] [2023-12-09 15:31:32,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:32,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:32,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:32,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:32,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789447487] [2023-12-09 15:31:32,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789447487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:32,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:32,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:31:32,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499449150] [2023-12-09 15:31:32,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:32,750 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:31:32,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:32,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:31:32,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:31:32,751 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2023-12-09 15:31:32,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 1250 transitions, 25305 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:32,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:32,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2023-12-09 15:31:32,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:34,675 INFO L124 PetriNetUnfolderBase]: 3856/8039 cut-off events. [2023-12-09 15:31:34,676 INFO L125 PetriNetUnfolderBase]: For 64494/86869 co-relation queries the response was YES. [2023-12-09 15:31:34,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65029 conditions, 8039 events. 3856/8039 cut-off events. For 64494/86869 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 70193 event pairs, 83 based on Foata normal form. 395/7382 useless extension candidates. Maximal degree in co-relation 57892. Up to 4446 conditions per place. [2023-12-09 15:31:34,788 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 1123 selfloop transitions, 828 changer transitions 74/2119 dead transitions. [2023-12-09 15:31:34,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 2119 transitions, 47809 flow [2023-12-09 15:31:34,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:31:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:31:34,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 663 transitions. [2023-12-09 15:31:34,791 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8456632653061225 [2023-12-09 15:31:34,791 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 663 transitions. [2023-12-09 15:31:34,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 663 transitions. [2023-12-09 15:31:34,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:34,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 663 transitions. [2023-12-09 15:31:34,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.875) internal successors, (663), 8 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:34,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:34,795 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:34,795 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 73 predicate places. [2023-12-09 15:31:34,796 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 2119 transitions, 47809 flow [2023-12-09 15:31:34,796 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:34,796 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:34,796 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:34,796 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:31:34,796 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:34,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:34,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1485683278, now seen corresponding path program 6 times [2023-12-09 15:31:34,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:34,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473500766] [2023-12-09 15:31:34,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:34,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:34,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:34,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473500766] [2023-12-09 15:31:34,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473500766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:34,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:34,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:31:34,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731200699] [2023-12-09 15:31:34,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:34,983 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:31:34,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:34,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:31:34,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:31:34,984 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 98 [2023-12-09 15:31:34,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 2119 transitions, 47809 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:34,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:34,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 98 [2023-12-09 15:31:34,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:37,718 INFO L124 PetriNetUnfolderBase]: 4421/9282 cut-off events. [2023-12-09 15:31:37,719 INFO L125 PetriNetUnfolderBase]: For 83563/121613 co-relation queries the response was YES. [2023-12-09 15:31:37,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77466 conditions, 9282 events. 4421/9282 cut-off events. For 83563/121613 co-relation queries the response was YES. Maximal size of possible extension queue 686. Compared 82954 event pairs, 323 based on Foata normal form. 286/8252 useless extension candidates. Maximal degree in co-relation 67818. Up to 5916 conditions per place. [2023-12-09 15:31:37,858 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 1732 selfloop transitions, 99 changer transitions 100/2325 dead transitions. [2023-12-09 15:31:37,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 2325 transitions, 55971 flow [2023-12-09 15:31:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:31:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:31:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 495 transitions. [2023-12-09 15:31:37,861 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8418367346938775 [2023-12-09 15:31:37,861 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 495 transitions. [2023-12-09 15:31:37,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 495 transitions. [2023-12-09 15:31:37,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:37,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 495 transitions. [2023-12-09 15:31:37,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:37,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:37,864 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:37,865 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 78 predicate places. [2023-12-09 15:31:37,865 INFO L500 AbstractCegarLoop]: Abstraction has has 165 places, 2325 transitions, 55971 flow [2023-12-09 15:31:37,865 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:37,865 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:37,865 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:37,865 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-09 15:31:37,866 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:37,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:37,866 INFO L85 PathProgramCache]: Analyzing trace with hash -864305354, now seen corresponding path program 7 times [2023-12-09 15:31:37,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:37,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695792459] [2023-12-09 15:31:37,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:37,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:38,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:38,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695792459] [2023-12-09 15:31:38,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695792459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:38,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:38,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:31:38,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596376239] [2023-12-09 15:31:38,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:38,263 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:31:38,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:38,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:31:38,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:31:38,265 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 98 [2023-12-09 15:31:38,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 2325 transitions, 55971 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:38,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:38,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 98 [2023-12-09 15:31:38,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:41,103 INFO L124 PetriNetUnfolderBase]: 4404/9019 cut-off events. [2023-12-09 15:31:41,104 INFO L125 PetriNetUnfolderBase]: For 83386/144143 co-relation queries the response was YES. [2023-12-09 15:31:41,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82658 conditions, 9019 events. 4404/9019 cut-off events. For 83386/144143 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 78776 event pairs, 263 based on Foata normal form. 224/7965 useless extension candidates. Maximal degree in co-relation 72875. Up to 6085 conditions per place. [2023-12-09 15:31:41,241 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 1698 selfloop transitions, 96 changer transitions 104/2291 dead transitions. [2023-12-09 15:31:41,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 2291 transitions, 58808 flow [2023-12-09 15:31:41,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:31:41,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:31:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 409 transitions. [2023-12-09 15:31:41,243 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8346938775510204 [2023-12-09 15:31:41,243 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 409 transitions. [2023-12-09 15:31:41,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 409 transitions. [2023-12-09 15:31:41,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:41,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 409 transitions. [2023-12-09 15:31:41,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:41,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:41,246 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:41,247 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 82 predicate places. [2023-12-09 15:31:41,247 INFO L500 AbstractCegarLoop]: Abstraction has has 169 places, 2291 transitions, 58808 flow [2023-12-09 15:31:41,247 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:41,247 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:41,247 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:41,248 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-09 15:31:41,248 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:41,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:41,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1771186386, now seen corresponding path program 8 times [2023-12-09 15:31:41,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:41,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572543363] [2023-12-09 15:31:41,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:41,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:41,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:41,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:41,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572543363] [2023-12-09 15:31:41,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572543363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:31:41,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:31:41,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:31:41,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340706315] [2023-12-09 15:31:41,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:31:41,452 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:31:41,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:41,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:31:41,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:31:41,453 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 98 [2023-12-09 15:31:41,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 2291 transitions, 58808 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:41,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:41,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 98 [2023-12-09 15:31:41,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:44,516 INFO L124 PetriNetUnfolderBase]: 4374/8848 cut-off events. [2023-12-09 15:31:44,516 INFO L125 PetriNetUnfolderBase]: For 85752/114337 co-relation queries the response was YES. [2023-12-09 15:31:44,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87743 conditions, 8848 events. 4374/8848 cut-off events. For 85752/114337 co-relation queries the response was YES. Maximal size of possible extension queue 638. Compared 76448 event pairs, 279 based on Foata normal form. 234/7829 useless extension candidates. Maximal degree in co-relation 78694. Up to 6004 conditions per place. [2023-12-09 15:31:44,649 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 1676 selfloop transitions, 80 changer transitions 130/2271 dead transitions. [2023-12-09 15:31:44,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 2271 transitions, 61980 flow [2023-12-09 15:31:44,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:31:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:31:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 478 transitions. [2023-12-09 15:31:44,652 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8129251700680272 [2023-12-09 15:31:44,652 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 478 transitions. [2023-12-09 15:31:44,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 478 transitions. [2023-12-09 15:31:44,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:44,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 478 transitions. [2023-12-09 15:31:44,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:44,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:44,654 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:44,655 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 87 predicate places. [2023-12-09 15:31:44,655 INFO L500 AbstractCegarLoop]: Abstraction has has 174 places, 2271 transitions, 61980 flow [2023-12-09 15:31:44,655 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:44,655 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:44,655 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:44,655 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-09 15:31:44,655 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:44,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:44,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2144649070, now seen corresponding path program 1 times [2023-12-09 15:31:44,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:44,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384991731] [2023-12-09 15:31:44,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:44,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:45,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:45,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:45,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384991731] [2023-12-09 15:31:45,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384991731] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:31:45,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293791584] [2023-12-09 15:31:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:45,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:31:45,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:31:45,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:31:45,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 15:31:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:45,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-09 15:31:45,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:31:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:45,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:31:46,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:46,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293791584] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:31:46,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:31:46,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2023-12-09 15:31:46,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688088293] [2023-12-09 15:31:46,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:31:46,153 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-09 15:31:46,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:31:46,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-09 15:31:46,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:31:46,155 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 98 [2023-12-09 15:31:46,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 2271 transitions, 61980 flow. Second operand has 18 states, 18 states have (on average 66.05555555555556) internal successors, (1189), 18 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:46,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:31:46,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 98 [2023-12-09 15:31:46,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:31:49,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:31:50,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:31:53,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:31:54,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:31:58,525 INFO L124 PetriNetUnfolderBase]: 6118/13743 cut-off events. [2023-12-09 15:31:58,525 INFO L125 PetriNetUnfolderBase]: For 162310/266773 co-relation queries the response was YES. [2023-12-09 15:31:58,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140185 conditions, 13743 events. 6118/13743 cut-off events. For 162310/266773 co-relation queries the response was YES. Maximal size of possible extension queue 920. Compared 134724 event pairs, 434 based on Foata normal form. 262/12194 useless extension candidates. Maximal degree in co-relation 120575. Up to 8924 conditions per place. [2023-12-09 15:31:58,696 INFO L140 encePairwiseOnDemand]: 84/98 looper letters, 2095 selfloop transitions, 752 changer transitions 154/3415 dead transitions. [2023-12-09 15:31:58,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 3415 transitions, 101135 flow [2023-12-09 15:31:58,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-09 15:31:58,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-12-09 15:31:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1532 transitions. [2023-12-09 15:31:58,699 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7105751391465677 [2023-12-09 15:31:58,699 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1532 transitions. [2023-12-09 15:31:58,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1532 transitions. [2023-12-09 15:31:58,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:31:58,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1532 transitions. [2023-12-09 15:31:58,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 69.63636363636364) internal successors, (1532), 22 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:58,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 98.0) internal successors, (2254), 23 states have internal predecessors, (2254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:58,707 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 98.0) internal successors, (2254), 23 states have internal predecessors, (2254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:58,708 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 108 predicate places. [2023-12-09 15:31:58,708 INFO L500 AbstractCegarLoop]: Abstraction has has 195 places, 3415 transitions, 101135 flow [2023-12-09 15:31:58,708 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 66.05555555555556) internal successors, (1189), 18 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:31:58,708 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:31:58,708 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:31:58,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-09 15:31:58,915 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-09 15:31:58,915 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:31:58,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:31:58,916 INFO L85 PathProgramCache]: Analyzing trace with hash 975168274, now seen corresponding path program 2 times [2023-12-09 15:31:58,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:31:58,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544334687] [2023-12-09 15:31:58,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:31:58,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:31:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:31:59,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:59,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:31:59,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544334687] [2023-12-09 15:31:59,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544334687] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:31:59,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389061523] [2023-12-09 15:31:59,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:31:59,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:31:59,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:31:59,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:31:59,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 15:31:59,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:31:59,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:31:59,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-09 15:31:59,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:31:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:31:59,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:32:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:00,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389061523] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:32:00,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:32:00,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 19 [2023-12-09 15:32:00,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280868565] [2023-12-09 15:32:00,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:32:00,448 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:32:00,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:00,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:32:00,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:32:00,450 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 98 [2023-12-09 15:32:00,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 3415 transitions, 101135 flow. Second operand has 19 states, 19 states have (on average 64.52631578947368) internal successors, (1226), 19 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:00,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:00,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 98 [2023-12-09 15:32:00,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:06,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:32:16,261 INFO L124 PetriNetUnfolderBase]: 10322/22372 cut-off events. [2023-12-09 15:32:16,262 INFO L125 PetriNetUnfolderBase]: For 290314/396561 co-relation queries the response was YES. [2023-12-09 15:32:16,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246872 conditions, 22372 events. 10322/22372 cut-off events. For 290314/396561 co-relation queries the response was YES. Maximal size of possible extension queue 1583. Compared 233469 event pairs, 640 based on Foata normal form. 914/20362 useless extension candidates. Maximal degree in co-relation 211737. Up to 14944 conditions per place. [2023-12-09 15:32:16,568 INFO L140 encePairwiseOnDemand]: 81/98 looper letters, 3708 selfloop transitions, 1623 changer transitions 219/5641 dead transitions. [2023-12-09 15:32:16,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 5641 transitions, 178696 flow [2023-12-09 15:32:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-09 15:32:16,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-12-09 15:32:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2243 transitions. [2023-12-09 15:32:16,572 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6935683364254793 [2023-12-09 15:32:16,573 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2243 transitions. [2023-12-09 15:32:16,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2243 transitions. [2023-12-09 15:32:16,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:16,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2243 transitions. [2023-12-09 15:32:16,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 67.96969696969697) internal successors, (2243), 33 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:16,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 98.0) internal successors, (3332), 34 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:16,584 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 98.0) internal successors, (3332), 34 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:16,584 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 140 predicate places. [2023-12-09 15:32:16,585 INFO L500 AbstractCegarLoop]: Abstraction has has 227 places, 5641 transitions, 178696 flow [2023-12-09 15:32:16,585 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.52631578947368) internal successors, (1226), 19 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:16,585 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:16,585 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:32:16,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-09 15:32:16,791 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:16,792 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:32:16,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:16,793 INFO L85 PathProgramCache]: Analyzing trace with hash 116467178, now seen corresponding path program 3 times [2023-12-09 15:32:16,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:16,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293510691] [2023-12-09 15:32:16,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:16,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:17,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:17,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293510691] [2023-12-09 15:32:17,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293510691] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:17,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413442547] [2023-12-09 15:32:17,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:32:17,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:17,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:17,106 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:32:17,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-09 15:32:17,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-09 15:32:17,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:32:17,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-09 15:32:17,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:17,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:17,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:32:18,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:18,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413442547] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:32:18,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:32:18,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 17 [2023-12-09 15:32:18,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059275297] [2023-12-09 15:32:18,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:32:18,083 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-09 15:32:18,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:18,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-09 15:32:18,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-09 15:32:18,085 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 98 [2023-12-09 15:32:18,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 5641 transitions, 178696 flow. Second operand has 17 states, 17 states have (on average 64.88235294117646) internal successors, (1103), 17 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:18,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:18,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 98 [2023-12-09 15:32:18,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:44,305 INFO L124 PetriNetUnfolderBase]: 11417/24633 cut-off events. [2023-12-09 15:32:44,305 INFO L125 PetriNetUnfolderBase]: For 356170/501031 co-relation queries the response was YES. [2023-12-09 15:32:44,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288229 conditions, 24633 events. 11417/24633 cut-off events. For 356170/501031 co-relation queries the response was YES. Maximal size of possible extension queue 1828. Compared 260156 event pairs, 701 based on Foata normal form. 487/21848 useless extension candidates. Maximal degree in co-relation 247079. Up to 16516 conditions per place. [2023-12-09 15:32:44,662 INFO L140 encePairwiseOnDemand]: 81/98 looper letters, 5119 selfloop transitions, 981 changer transitions 261/6452 dead transitions. [2023-12-09 15:32:44,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 6452 transitions, 217103 flow [2023-12-09 15:32:44,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-09 15:32:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-12-09 15:32:44,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1870 transitions. [2023-12-09 15:32:44,665 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6814868804664723 [2023-12-09 15:32:44,665 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 1870 transitions. [2023-12-09 15:32:44,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 1870 transitions. [2023-12-09 15:32:44,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:44,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 1870 transitions. [2023-12-09 15:32:44,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 66.78571428571429) internal successors, (1870), 28 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:44,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 98.0) internal successors, (2842), 29 states have internal predecessors, (2842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:44,686 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 98.0) internal successors, (2842), 29 states have internal predecessors, (2842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:44,687 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 167 predicate places. [2023-12-09 15:32:44,687 INFO L500 AbstractCegarLoop]: Abstraction has has 254 places, 6452 transitions, 217103 flow [2023-12-09 15:32:44,687 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 64.88235294117646) internal successors, (1103), 17 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:44,687 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:44,687 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:32:44,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-09 15:32:44,892 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-09 15:32:44,892 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:32:44,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:44,893 INFO L85 PathProgramCache]: Analyzing trace with hash 989989365, now seen corresponding path program 1 times [2023-12-09 15:32:44,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:44,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830425561] [2023-12-09 15:32:44,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:44,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:45,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:45,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:45,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830425561] [2023-12-09 15:32:45,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830425561] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:45,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756775318] [2023-12-09 15:32:45,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:45,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:45,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:45,108 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:32:45,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-09 15:32:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:45,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-09 15:32:45,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:45,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:32:45,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:45,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756775318] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:32:45,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:32:45,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 10] total 20 [2023-12-09 15:32:45,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373516188] [2023-12-09 15:32:45,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:32:45,764 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-09 15:32:45,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:45,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-09 15:32:45,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2023-12-09 15:32:45,766 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 98 [2023-12-09 15:32:45,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 6452 transitions, 217103 flow. Second operand has 20 states, 20 states have (on average 72.3) internal successors, (1446), 20 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:45,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:45,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 98 [2023-12-09 15:32:45,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:33:40,135 INFO L124 PetriNetUnfolderBase]: 19014/36692 cut-off events. [2023-12-09 15:33:40,136 INFO L125 PetriNetUnfolderBase]: For 546703/565138 co-relation queries the response was YES. [2023-12-09 15:33:40,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491004 conditions, 36692 events. 19014/36692 cut-off events. For 546703/565138 co-relation queries the response was YES. Maximal size of possible extension queue 2590. Compared 373787 event pairs, 149 based on Foata normal form. 1099/33551 useless extension candidates. Maximal degree in co-relation 473692. Up to 26927 conditions per place. [2023-12-09 15:33:40,793 INFO L140 encePairwiseOnDemand]: 82/98 looper letters, 6574 selfloop transitions, 6330 changer transitions 182/13166 dead transitions. [2023-12-09 15:33:40,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 13166 transitions, 466597 flow [2023-12-09 15:33:40,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-09 15:33:40,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2023-12-09 15:33:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 4539 transitions. [2023-12-09 15:33:40,799 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7985573539760732 [2023-12-09 15:33:40,799 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 4539 transitions. [2023-12-09 15:33:40,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 4539 transitions. [2023-12-09 15:33:40,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:33:40,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 4539 transitions. [2023-12-09 15:33:40,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 78.25862068965517) internal successors, (4539), 58 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:40,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 98.0) internal successors, (5782), 59 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:40,814 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 98.0) internal successors, (5782), 59 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:40,814 INFO L308 CegarLoopForPetriNet]: 87 programPoint places, 212 predicate places. [2023-12-09 15:33:40,814 INFO L500 AbstractCegarLoop]: Abstraction has has 299 places, 13166 transitions, 466597 flow [2023-12-09 15:33:40,815 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 72.3) internal successors, (1446), 20 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:40,815 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:33:40,815 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:33:40,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-09 15:33:41,020 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-09 15:33:41,020 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:33:41,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:33:41,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1069981155, now seen corresponding path program 2 times [2023-12-09 15:33:41,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:33:41,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751292456] [2023-12-09 15:33:41,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:33:41,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:33:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:33:41,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:33:41,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:33:41,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751292456] [2023-12-09 15:33:41,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751292456] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:33:41,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782153899] [2023-12-09 15:33:41,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:33:41,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:33:41,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:33:41,305 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:33:41,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-09 15:33:41,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:33:41,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:33:41,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-09 15:33:41,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:33:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:33:41,541 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:33:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:33:41,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782153899] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:33:41,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:33:41,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 11] total 19 [2023-12-09 15:33:41,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134401266] [2023-12-09 15:33:41,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:33:41,931 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-09 15:33:41,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:33:41,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-09 15:33:41,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-12-09 15:33:41,933 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 98 [2023-12-09 15:33:41,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 13166 transitions, 466597 flow. Second operand has 19 states, 19 states have (on average 72.10526315789474) internal successors, (1370), 19 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:33:41,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:33:41,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 98 [2023-12-09 15:33:41,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:35:29,419 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:35:29,420 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 [2023-12-09 15:35:29,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2023-12-09 15:35:29,507 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 15:35:29,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-09 15:35:29,708 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:35:29,708 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 70/98 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 392328 conditions, 25356 events (14214/25355 cut-off events. For 344610/355138 co-relation queries the response was YES. Maximal size of possible extension queue 4569. Compared 266871 event pairs, 4 based on Foata normal form. 715/26527 useless extension candidates. Maximal degree in co-relation 391357. Up to 20334 conditions per place.). [2023-12-09 15:35:29,710 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 15:35:29,710 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 15:35:29,710 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 15:35:29,711 INFO L457 BasicCegarLoop]: Path program histogram: [8, 4, 3, 2, 1, 1] [2023-12-09 15:35:29,714 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:35:29,714 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:35:29,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:35:29 BasicIcfg [2023-12-09 15:35:29,717 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:35:29,717 INFO L158 Benchmark]: Toolchain (without parser) took 250641.01ms. Allocated memory was 305.1MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 269.5MB in the beginning and 2.1GB in the end (delta: -1.8GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-09 15:35:29,718 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory was 153.2MB in the beginning and 153.1MB in the end (delta: 161.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:35:29,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.17ms. Allocated memory is still 305.1MB. Free memory was 269.5MB in the beginning and 257.8MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-09 15:35:29,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.58ms. Allocated memory is still 305.1MB. Free memory was 257.8MB in the beginning and 256.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:35:29,718 INFO L158 Benchmark]: Boogie Preprocessor took 20.82ms. Allocated memory is still 305.1MB. Free memory was 256.4MB in the beginning and 254.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:35:29,718 INFO L158 Benchmark]: RCFGBuilder took 468.23ms. Allocated memory is still 305.1MB. Free memory was 254.8MB in the beginning and 235.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-09 15:35:29,719 INFO L158 Benchmark]: TraceAbstraction took 249895.39ms. Allocated memory was 305.1MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 235.4MB in the beginning and 2.1GB in the end (delta: -1.8GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-09 15:35:29,720 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory was 153.2MB in the beginning and 153.1MB in the end (delta: 161.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.17ms. Allocated memory is still 305.1MB. Free memory was 269.5MB in the beginning and 257.8MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.58ms. Allocated memory is still 305.1MB. Free memory was 257.8MB in the beginning and 256.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.82ms. Allocated memory is still 305.1MB. Free memory was 256.4MB in the beginning and 254.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 468.23ms. Allocated memory is still 305.1MB. Free memory was 254.8MB in the beginning and 235.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 249895.39ms. Allocated memory was 305.1MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 235.4MB in the beginning and 2.1GB in the end (delta: -1.8GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 70/98 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 392328 conditions, 25356 events (14214/25355 cut-off events. For 344610/355138 co-relation queries the response was YES. Maximal size of possible extension queue 4569. Compared 266871 event pairs, 4 based on Foata normal form. 715/26527 useless extension candidates. Maximal degree in co-relation 391357. Up to 20334 conditions per place.). - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 70/98 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 392328 conditions, 25356 events (14214/25355 cut-off events. For 344610/355138 co-relation queries the response was YES. Maximal size of possible extension queue 4569. Compared 266871 event pairs, 4 based on Foata normal form. 715/26527 useless extension candidates. Maximal degree in co-relation 391357. Up to 20334 conditions per place.). - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 70/98 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 392328 conditions, 25356 events (14214/25355 cut-off events. For 344610/355138 co-relation queries the response was YES. Maximal size of possible extension queue 4569. Compared 266871 event pairs, 4 based on Foata normal form. 715/26527 useless extension candidates. Maximal degree in co-relation 391357. Up to 20334 conditions per place.). - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 70/98 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 392328 conditions, 25356 events (14214/25355 cut-off events. For 344610/355138 co-relation queries the response was YES. Maximal size of possible extension queue 4569. Compared 266871 event pairs, 4 based on Foata normal form. 715/26527 useless extension candidates. Maximal degree in co-relation 391357. Up to 20334 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 117 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 249.8s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 236.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 1978 SdHoareTripleChecker+Valid, 13.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1978 mSDsluCounter, 1322 SdHoareTripleChecker+Invalid, 12.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1088 mSDsCounter, 331 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5514 IncrementalHoareTripleChecker+Invalid, 5847 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 331 mSolverCounterUnsat, 234 mSDtfsCounter, 5514 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1274 GetRequests, 883 SyntacticMatches, 6 SemanticMatches, 385 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9223 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=466597occurred in iteration=18, InterpolantAutomatonStates: 243, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 1863 NumberOfCodeBlocks, 1863 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2286 ConstructedInterpolants, 0 QuantifiedInterpolants, 16338 SizeOfPredicates, 52 NumberOfNonLiveVariables, 1291 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 31 InterpolantComputations, 13 PerfectInterpolantSequences, 14/45 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown