/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -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/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 19:30:58,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 19:30:58,558 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 [2023-11-29 19:30:58,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 19:30:58,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 19:30:58,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 19:30:58,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 19:30:58,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 19:30:58,586 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 19:30:58,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 19:30:58,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 19:30:58,590 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 19:30:58,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 19:30:58,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 19:30:58,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 19:30:58,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 19:30:58,592 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 19:30:58,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 19:30:58,592 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 19:30:58,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 19:30:58,592 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 19:30:58,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 19:30:58,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 19:30:58,593 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 19:30:58,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 19:30:58,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:30:58,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 19:30:58,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 19:30:58,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 19:30:58,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 19:30:58,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 19:30:58,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 19:30:58,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 19:30:58,595 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 19:30:58,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 19:30:58,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 19:30:58,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 19:30:58,784 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 19:30:58,784 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 19:30:58,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-29 19:30:59,738 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 19:30:59,979 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 19:30:59,985 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-29 19:31:00,003 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1b88f78d/f7954d1af0084cbbbc5277cca0811986/FLAGb1cae757a [2023-11-29 19:31:00,015 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1b88f78d/f7954d1af0084cbbbc5277cca0811986 [2023-11-29 19:31:00,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 19:31:00,018 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 19:31:00,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 19:31:00,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 19:31:00,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 19:31:00,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50adbb27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00, skipping insertion in model container [2023-11-29 19:31:00,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,062 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 19:31:00,178 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2023-11-29 19:31:00,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:31:00,312 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 19:31:00,321 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2023-11-29 19:31:00,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:31:00,385 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:31:00,385 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:31:00,390 INFO L206 MainTranslator]: Completed translation [2023-11-29 19:31:00,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00 WrapperNode [2023-11-29 19:31:00,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 19:31:00,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 19:31:00,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 19:31:00,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 19:31:00,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,440 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 153 [2023-11-29 19:31:00,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 19:31:00,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 19:31:00,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 19:31:00,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 19:31:00,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,482 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,485 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 19:31:00,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 19:31:00,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 19:31:00,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 19:31:00,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (1/1) ... [2023-11-29 19:31:00,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:31:00,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 19:31:00,531 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) [2023-11-29 19:31:00,540 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 [2023-11-29 19:31:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 19:31:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 19:31:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 19:31:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 19:31:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 19:31:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 19:31:00,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 19:31:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 19:31:00,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 19:31:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 19:31:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 19:31:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 19:31:00,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 19:31:00,560 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 19:31:00,654 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 19:31:00,656 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 19:31:00,898 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 19:31:00,997 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 19:31:00,997 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 19:31:00,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:31:00 BoogieIcfgContainer [2023-11-29 19:31:00,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 19:31:01,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 19:31:01,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 19:31:01,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 19:31:01,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:31:00" (1/3) ... [2023-11-29 19:31:01,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4975f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:31:01, skipping insertion in model container [2023-11-29 19:31:01,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:31:00" (2/3) ... [2023-11-29 19:31:01,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4975f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:31:01, skipping insertion in model container [2023-11-29 19:31:01,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:31:00" (3/3) ... [2023-11-29 19:31:01,008 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-29 19:31:01,020 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 19:31:01,020 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 19:31:01,020 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 19:31:01,067 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 19:31:01,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions, 198 flow [2023-11-29 19:31:01,127 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2023-11-29 19:31:01,127 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:31:01,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2023-11-29 19:31:01,133 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 95 transitions, 198 flow [2023-11-29 19:31:01,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 93 transitions, 192 flow [2023-11-29 19:31:01,154 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:31:01,160 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;@58884ba0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:31:01,161 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-29 19:31:01,169 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:31:01,169 INFO L124 PetriNetUnfolderBase]: 0/55 cut-off events. [2023-11-29 19:31:01,169 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:31:01,169 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:01,174 INFO L232 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] [2023-11-29 19:31:01,175 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:01,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:01,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1240377627, now seen corresponding path program 1 times [2023-11-29 19:31:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:01,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142043125] [2023-11-29 19:31:01,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:01,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:01,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:01,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:01,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142043125] [2023-11-29 19:31:01,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142043125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:01,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:01,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 19:31:01,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108476006] [2023-11-29 19:31:01,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:01,580 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 19:31:01,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:01,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 19:31:01,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 19:31:01,616 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 95 [2023-11-29 19:31:01,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-11-29 19:31:01,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:01,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 95 [2023-11-29 19:31:01,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:01,763 INFO L124 PetriNetUnfolderBase]: 60/464 cut-off events. [2023-11-29 19:31:01,763 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 19:31:01,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 464 events. 60/464 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2644 event pairs, 25 based on Foata normal form. 24/457 useless extension candidates. Maximal degree in co-relation 546. Up to 88 conditions per place. [2023-11-29 19:31:01,770 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 14 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-11-29 19:31:01,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 94 transitions, 226 flow [2023-11-29 19:31:01,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 19:31:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 19:31:01,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2023-11-29 19:31:01,783 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9157894736842105 [2023-11-29 19:31:01,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 261 transitions. [2023-11-29 19:31:01,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 261 transitions. [2023-11-29 19:31:01,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:01,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 261 transitions. [2023-11-29 19:31:01,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2023-11-29 19:31:01,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2023-11-29 19:31:01,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2023-11-29 19:31:01,799 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2023-11-29 19:31:01,799 INFO L500 AbstractCegarLoop]: Abstraction has has 98 places, 94 transitions, 226 flow [2023-11-29 19:31:01,800 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-11-29 19:31:01,800 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:01,800 INFO L232 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] [2023-11-29 19:31:01,800 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 19:31:01,800 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:01,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:01,801 INFO L85 PathProgramCache]: Analyzing trace with hash -212229443, now seen corresponding path program 1 times [2023-11-29 19:31:01,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:01,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755152265] [2023-11-29 19:31:01,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:01,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:02,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:02,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755152265] [2023-11-29 19:31:02,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755152265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:02,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:02,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:31:02,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328219238] [2023-11-29 19:31:02,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:02,395 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:31:02,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:02,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:31:02,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:31:02,397 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 95 [2023-11-29 19:31:02,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 94 transitions, 226 flow. Second operand has 7 states, 7 states have (on average 63.714285714285715) internal successors, (446), 7 states have internal predecessors, (446), 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) [2023-11-29 19:31:02,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:02,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 95 [2023-11-29 19:31:02,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:02,747 INFO L124 PetriNetUnfolderBase]: 434/1180 cut-off events. [2023-11-29 19:31:02,747 INFO L125 PetriNetUnfolderBase]: For 252/474 co-relation queries the response was YES. [2023-11-29 19:31:02,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2370 conditions, 1180 events. 434/1180 cut-off events. For 252/474 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7373 event pairs, 78 based on Foata normal form. 0/1143 useless extension candidates. Maximal degree in co-relation 2312. Up to 364 conditions per place. [2023-11-29 19:31:02,753 INFO L140 encePairwiseOnDemand]: 87/95 looper letters, 36 selfloop transitions, 3 changer transitions 70/160 dead transitions. [2023-11-29 19:31:02,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 160 transitions, 651 flow [2023-11-29 19:31:02,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:31:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:31:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 636 transitions. [2023-11-29 19:31:02,756 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.743859649122807 [2023-11-29 19:31:02,757 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 636 transitions. [2023-11-29 19:31:02,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 636 transitions. [2023-11-29 19:31:02,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:02,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 636 transitions. [2023-11-29 19:31:02,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 70.66666666666667) internal successors, (636), 9 states have internal predecessors, (636), 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) [2023-11-29 19:31:02,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 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) [2023-11-29 19:31:02,761 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 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) [2023-11-29 19:31:02,761 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 8 predicate places. [2023-11-29 19:31:02,761 INFO L500 AbstractCegarLoop]: Abstraction has has 106 places, 160 transitions, 651 flow [2023-11-29 19:31:02,762 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.714285714285715) internal successors, (446), 7 states have internal predecessors, (446), 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) [2023-11-29 19:31:02,762 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:02,762 INFO L232 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] [2023-11-29 19:31:02,762 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 19:31:02,763 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:02,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:02,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1391005563, now seen corresponding path program 1 times [2023-11-29 19:31:02,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:02,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701481721] [2023-11-29 19:31:02,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:02,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:02,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:02,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701481721] [2023-11-29 19:31:02,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701481721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:02,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:02,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:31:02,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244522416] [2023-11-29 19:31:02,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:02,963 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:31:02,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:02,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:31:02,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:31:02,965 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 95 [2023-11-29 19:31:02,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 160 transitions, 651 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2023-11-29 19:31:02,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:02,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 95 [2023-11-29 19:31:02,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:03,316 INFO L124 PetriNetUnfolderBase]: 610/1655 cut-off events. [2023-11-29 19:31:03,316 INFO L125 PetriNetUnfolderBase]: For 391/1140 co-relation queries the response was YES. [2023-11-29 19:31:03,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4341 conditions, 1655 events. 610/1655 cut-off events. For 391/1140 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 11603 event pairs, 46 based on Foata normal form. 2/1626 useless extension candidates. Maximal degree in co-relation 4279. Up to 543 conditions per place. [2023-11-29 19:31:03,321 INFO L140 encePairwiseOnDemand]: 87/95 looper letters, 30 selfloop transitions, 3 changer transitions 160/254 dead transitions. [2023-11-29 19:31:03,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 254 transitions, 1501 flow [2023-11-29 19:31:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:31:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:31:03,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 708 transitions. [2023-11-29 19:31:03,323 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8280701754385965 [2023-11-29 19:31:03,324 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 708 transitions. [2023-11-29 19:31:03,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 708 transitions. [2023-11-29 19:31:03,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:03,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 708 transitions. [2023-11-29 19:31:03,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.66666666666667) internal successors, (708), 9 states have internal predecessors, (708), 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) [2023-11-29 19:31:03,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 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) [2023-11-29 19:31:03,327 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 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) [2023-11-29 19:31:03,327 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 16 predicate places. [2023-11-29 19:31:03,327 INFO L500 AbstractCegarLoop]: Abstraction has has 114 places, 254 transitions, 1501 flow [2023-11-29 19:31:03,328 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2023-11-29 19:31:03,328 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:03,328 INFO L232 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] [2023-11-29 19:31:03,328 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 19:31:03,328 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:03,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:03,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1045927906, now seen corresponding path program 1 times [2023-11-29 19:31:03,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:03,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557120639] [2023-11-29 19:31:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:03,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:04,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:04,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557120639] [2023-11-29 19:31:04,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557120639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:04,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:04,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-29 19:31:04,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105973308] [2023-11-29 19:31:04,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:04,344 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 19:31:04,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:04,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 19:31:04,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 19:31:04,347 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 95 [2023-11-29 19:31:04,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 254 transitions, 1501 flow. Second operand has 15 states, 15 states have (on average 63.53333333333333) internal successors, (953), 15 states have internal predecessors, (953), 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) [2023-11-29 19:31:04,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:04,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 95 [2023-11-29 19:31:04,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:05,464 INFO L124 PetriNetUnfolderBase]: 1588/3680 cut-off events. [2023-11-29 19:31:05,464 INFO L125 PetriNetUnfolderBase]: For 1383/7309 co-relation queries the response was YES. [2023-11-29 19:31:05,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13379 conditions, 3680 events. 1588/3680 cut-off events. For 1383/7309 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 28930 event pairs, 17 based on Foata normal form. 27/3679 useless extension candidates. Maximal degree in co-relation 13305. Up to 1481 conditions per place. [2023-11-29 19:31:05,479 INFO L140 encePairwiseOnDemand]: 76/95 looper letters, 48 selfloop transitions, 34 changer transitions 729/863 dead transitions. [2023-11-29 19:31:05,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 863 transitions, 7373 flow [2023-11-29 19:31:05,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 19:31:05,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-29 19:31:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1815 transitions. [2023-11-29 19:31:05,483 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7348178137651822 [2023-11-29 19:31:05,483 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1815 transitions. [2023-11-29 19:31:05,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1815 transitions. [2023-11-29 19:31:05,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:05,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1815 transitions. [2023-11-29 19:31:05,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 69.8076923076923) internal successors, (1815), 26 states have internal predecessors, (1815), 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) [2023-11-29 19:31:05,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 95.0) internal successors, (2565), 27 states have internal predecessors, (2565), 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) [2023-11-29 19:31:05,489 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 95.0) internal successors, (2565), 27 states have internal predecessors, (2565), 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) [2023-11-29 19:31:05,489 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 41 predicate places. [2023-11-29 19:31:05,490 INFO L500 AbstractCegarLoop]: Abstraction has has 139 places, 863 transitions, 7373 flow [2023-11-29 19:31:05,490 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 63.53333333333333) internal successors, (953), 15 states have internal predecessors, (953), 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) [2023-11-29 19:31:05,490 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:05,490 INFO L232 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] [2023-11-29 19:31:05,490 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 19:31:05,490 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:05,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:05,491 INFO L85 PathProgramCache]: Analyzing trace with hash 538943198, now seen corresponding path program 2 times [2023-11-29 19:31:05,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:05,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520020417] [2023-11-29 19:31:05,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:05,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:06,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:06,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520020417] [2023-11-29 19:31:06,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520020417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:06,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:06,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 19:31:06,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779781929] [2023-11-29 19:31:06,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:06,230 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 19:31:06,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:06,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 19:31:06,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 19:31:06,232 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 95 [2023-11-29 19:31:06,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 863 transitions, 7373 flow. Second operand has 13 states, 13 states have (on average 67.46153846153847) internal successors, (877), 13 states have internal predecessors, (877), 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) [2023-11-29 19:31:06,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:06,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 95 [2023-11-29 19:31:06,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:07,274 INFO L124 PetriNetUnfolderBase]: 1766/4115 cut-off events. [2023-11-29 19:31:07,274 INFO L125 PetriNetUnfolderBase]: For 2170/8566 co-relation queries the response was YES. [2023-11-29 19:31:07,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17884 conditions, 4115 events. 1766/4115 cut-off events. For 2170/8566 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 33117 event pairs, 10 based on Foata normal form. 54/4139 useless extension candidates. Maximal degree in co-relation 17801. Up to 1683 conditions per place. [2023-11-29 19:31:07,289 INFO L140 encePairwiseOnDemand]: 78/95 looper letters, 50 selfloop transitions, 28 changer transitions 887/1026 dead transitions. [2023-11-29 19:31:07,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 1026 transitions, 10671 flow [2023-11-29 19:31:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 19:31:07,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 19:31:07,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1537 transitions. [2023-11-29 19:31:07,292 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7704260651629072 [2023-11-29 19:31:07,292 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1537 transitions. [2023-11-29 19:31:07,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1537 transitions. [2023-11-29 19:31:07,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:07,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1537 transitions. [2023-11-29 19:31:07,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 73.19047619047619) internal successors, (1537), 21 states have internal predecessors, (1537), 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) [2023-11-29 19:31:07,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 95.0) internal successors, (2090), 22 states have internal predecessors, (2090), 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) [2023-11-29 19:31:07,299 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 95.0) internal successors, (2090), 22 states have internal predecessors, (2090), 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) [2023-11-29 19:31:07,300 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 61 predicate places. [2023-11-29 19:31:07,301 INFO L500 AbstractCegarLoop]: Abstraction has has 159 places, 1026 transitions, 10671 flow [2023-11-29 19:31:07,301 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 67.46153846153847) internal successors, (877), 13 states have internal predecessors, (877), 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) [2023-11-29 19:31:07,301 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:07,301 INFO L232 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] [2023-11-29 19:31:07,301 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 19:31:07,301 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:07,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:07,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2070258686, now seen corresponding path program 3 times [2023-11-29 19:31:07,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:07,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587638580] [2023-11-29 19:31:07,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:07,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:08,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:08,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:08,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587638580] [2023-11-29 19:31:08,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587638580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:08,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:08,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 19:31:08,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294937395] [2023-11-29 19:31:08,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:08,235 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 19:31:08,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:08,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 19:31:08,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 19:31:08,236 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 95 [2023-11-29 19:31:08,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 1026 transitions, 10671 flow. Second operand has 12 states, 12 states have (on average 63.916666666666664) internal successors, (767), 12 states have internal predecessors, (767), 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) [2023-11-29 19:31:08,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:08,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 95 [2023-11-29 19:31:08,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:09,321 INFO L124 PetriNetUnfolderBase]: 2400/5600 cut-off events. [2023-11-29 19:31:09,322 INFO L125 PetriNetUnfolderBase]: For 3791/16930 co-relation queries the response was YES. [2023-11-29 19:31:09,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28338 conditions, 5600 events. 2400/5600 cut-off events. For 3791/16930 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 48863 event pairs, 15 based on Foata normal form. 36/5609 useless extension candidates. Maximal degree in co-relation 28242. Up to 2738 conditions per place. [2023-11-29 19:31:09,344 INFO L140 encePairwiseOnDemand]: 81/95 looper letters, 81 selfloop transitions, 16 changer transitions 1298/1452 dead transitions. [2023-11-29 19:31:09,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 1452 transitions, 18035 flow [2023-11-29 19:31:09,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 19:31:09,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 19:31:09,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 836 transitions. [2023-11-29 19:31:09,346 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2023-11-29 19:31:09,346 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 836 transitions. [2023-11-29 19:31:09,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 836 transitions. [2023-11-29 19:31:09,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:09,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 836 transitions. [2023-11-29 19:31:09,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 69.66666666666667) internal successors, (836), 12 states have internal predecessors, (836), 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) [2023-11-29 19:31:09,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 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) [2023-11-29 19:31:09,349 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 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) [2023-11-29 19:31:09,350 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 72 predicate places. [2023-11-29 19:31:09,350 INFO L500 AbstractCegarLoop]: Abstraction has has 170 places, 1452 transitions, 18035 flow [2023-11-29 19:31:09,350 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 63.916666666666664) internal successors, (767), 12 states have internal predecessors, (767), 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) [2023-11-29 19:31:09,350 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:09,350 INFO L232 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] [2023-11-29 19:31:09,350 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 19:31:09,350 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:09,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash 895364238, now seen corresponding path program 4 times [2023-11-29 19:31:09,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:09,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591231639] [2023-11-29 19:31:09,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:09,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:10,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:10,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591231639] [2023-11-29 19:31:10,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591231639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:10,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:10,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-29 19:31:10,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623930542] [2023-11-29 19:31:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:10,092 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 19:31:10,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:10,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 19:31:10,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-29 19:31:10,093 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 95 [2023-11-29 19:31:10,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 1452 transitions, 18035 flow. Second operand has 15 states, 15 states have (on average 65.4) internal successors, (981), 15 states have internal predecessors, (981), 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) [2023-11-29 19:31:10,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:10,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 95 [2023-11-29 19:31:10,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:11,591 INFO L124 PetriNetUnfolderBase]: 2711/6442 cut-off events. [2023-11-29 19:31:11,591 INFO L125 PetriNetUnfolderBase]: For 5851/22826 co-relation queries the response was YES. [2023-11-29 19:31:11,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36728 conditions, 6442 events. 2711/6442 cut-off events. For 5851/22826 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 58726 event pairs, 15 based on Foata normal form. 99/6512 useless extension candidates. Maximal degree in co-relation 36621. Up to 3270 conditions per place. [2023-11-29 19:31:11,612 INFO L140 encePairwiseOnDemand]: 81/95 looper letters, 84 selfloop transitions, 19 changer transitions 1542/1704 dead transitions. [2023-11-29 19:31:11,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 1704 transitions, 24459 flow [2023-11-29 19:31:11,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 19:31:11,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 19:31:11,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1269 transitions. [2023-11-29 19:31:11,615 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7421052631578947 [2023-11-29 19:31:11,615 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1269 transitions. [2023-11-29 19:31:11,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1269 transitions. [2023-11-29 19:31:11,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:11,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1269 transitions. [2023-11-29 19:31:11,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 70.5) internal successors, (1269), 18 states have internal predecessors, (1269), 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) [2023-11-29 19:31:11,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 95.0) internal successors, (1805), 19 states have internal predecessors, (1805), 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) [2023-11-29 19:31:11,620 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 95.0) internal successors, (1805), 19 states have internal predecessors, (1805), 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) [2023-11-29 19:31:11,621 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 89 predicate places. [2023-11-29 19:31:11,621 INFO L500 AbstractCegarLoop]: Abstraction has has 187 places, 1704 transitions, 24459 flow [2023-11-29 19:31:11,621 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 65.4) internal successors, (981), 15 states have internal predecessors, (981), 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) [2023-11-29 19:31:11,621 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:11,621 INFO L232 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] [2023-11-29 19:31:11,622 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 19:31:11,622 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:11,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:11,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1313085402, now seen corresponding path program 5 times [2023-11-29 19:31:11,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:11,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093297824] [2023-11-29 19:31:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:11,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:12,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:12,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:12,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093297824] [2023-11-29 19:31:12,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093297824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:12,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:12,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 19:31:12,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410227123] [2023-11-29 19:31:12,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:12,357 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 19:31:12,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:12,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 19:31:12,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-29 19:31:12,358 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 95 [2023-11-29 19:31:12,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 1704 transitions, 24459 flow. Second operand has 12 states, 12 states have (on average 62.083333333333336) internal successors, (745), 12 states have internal predecessors, (745), 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) [2023-11-29 19:31:12,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:12,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 95 [2023-11-29 19:31:12,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:14,557 INFO L124 PetriNetUnfolderBase]: 3688/9407 cut-off events. [2023-11-29 19:31:14,557 INFO L125 PetriNetUnfolderBase]: For 9263/52184 co-relation queries the response was YES. [2023-11-29 19:31:14,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59281 conditions, 9407 events. 3688/9407 cut-off events. For 9263/52184 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 96555 event pairs, 8 based on Foata normal form. 88/9464 useless extension candidates. Maximal degree in co-relation 59160. Up to 4816 conditions per place. [2023-11-29 19:31:14,590 INFO L140 encePairwiseOnDemand]: 81/95 looper letters, 107 selfloop transitions, 25 changer transitions 2228/2410 dead transitions. [2023-11-29 19:31:14,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 2410 transitions, 39535 flow [2023-11-29 19:31:14,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 19:31:14,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 19:31:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1103 transitions. [2023-11-29 19:31:14,593 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7256578947368421 [2023-11-29 19:31:14,593 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1103 transitions. [2023-11-29 19:31:14,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1103 transitions. [2023-11-29 19:31:14,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:14,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1103 transitions. [2023-11-29 19:31:14,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 68.9375) internal successors, (1103), 16 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) [2023-11-29 19:31:14,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 95.0) internal successors, (1615), 17 states have internal predecessors, (1615), 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) [2023-11-29 19:31:14,597 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 95.0) internal successors, (1615), 17 states have internal predecessors, (1615), 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) [2023-11-29 19:31:14,597 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 104 predicate places. [2023-11-29 19:31:14,597 INFO L500 AbstractCegarLoop]: Abstraction has has 202 places, 2410 transitions, 39535 flow [2023-11-29 19:31:14,597 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.083333333333336) internal successors, (745), 12 states have internal predecessors, (745), 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) [2023-11-29 19:31:14,598 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:14,598 INFO L232 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] [2023-11-29 19:31:14,598 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 19:31:14,598 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:14,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:14,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1020917209, now seen corresponding path program 1 times [2023-11-29 19:31:14,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:14,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098070633] [2023-11-29 19:31:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:14,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:15,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:15,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:15,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098070633] [2023-11-29 19:31:15,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098070633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:15,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:15,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 19:31:15,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117883193] [2023-11-29 19:31:15,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:15,433 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 19:31:15,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:15,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 19:31:15,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-29 19:31:15,435 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 95 [2023-11-29 19:31:15,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 2410 transitions, 39535 flow. Second operand has 14 states, 14 states have (on average 64.64285714285714) internal successors, (905), 14 states have internal predecessors, (905), 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) [2023-11-29 19:31:15,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:15,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 95 [2023-11-29 19:31:15,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:20,111 INFO L124 PetriNetUnfolderBase]: 5220/13956 cut-off events. [2023-11-29 19:31:20,111 INFO L125 PetriNetUnfolderBase]: For 15276/51870 co-relation queries the response was YES. [2023-11-29 19:31:20,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95267 conditions, 13956 events. 5220/13956 cut-off events. For 15276/51870 co-relation queries the response was YES. Maximal size of possible extension queue 1077. Compared 157513 event pairs, 23 based on Foata normal form. 337/14268 useless extension candidates. Maximal degree in co-relation 95134. Up to 7467 conditions per place. [2023-11-29 19:31:20,161 INFO L140 encePairwiseOnDemand]: 78/95 looper letters, 84 selfloop transitions, 37 changer transitions 3694/3876 dead transitions. [2023-11-29 19:31:20,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 3876 transitions, 71821 flow [2023-11-29 19:31:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 19:31:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-11-29 19:31:20,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2389 transitions. [2023-11-29 19:31:20,165 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7396284829721362 [2023-11-29 19:31:20,165 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 2389 transitions. [2023-11-29 19:31:20,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 2389 transitions. [2023-11-29 19:31:20,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:20,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 2389 transitions. [2023-11-29 19:31:20,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 70.26470588235294) internal successors, (2389), 34 states have internal predecessors, (2389), 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) [2023-11-29 19:31:20,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 95.0) internal successors, (3325), 35 states have internal predecessors, (3325), 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) [2023-11-29 19:31:20,174 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 95.0) internal successors, (3325), 35 states have internal predecessors, (3325), 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) [2023-11-29 19:31:20,175 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 137 predicate places. [2023-11-29 19:31:20,175 INFO L500 AbstractCegarLoop]: Abstraction has has 235 places, 3876 transitions, 71821 flow [2023-11-29 19:31:20,175 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 64.64285714285714) internal successors, (905), 14 states have internal predecessors, (905), 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) [2023-11-29 19:31:20,175 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:20,175 INFO L232 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] [2023-11-29 19:31:20,175 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 19:31:20,175 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:20,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:20,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1165929493, now seen corresponding path program 2 times [2023-11-29 19:31:20,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:20,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151179104] [2023-11-29 19:31:20,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:20,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:21,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:21,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151179104] [2023-11-29 19:31:21,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151179104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:21,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:21,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-29 19:31:21,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592163887] [2023-11-29 19:31:21,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:21,277 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 19:31:21,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:21,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 19:31:21,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2023-11-29 19:31:21,278 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 95 [2023-11-29 19:31:21,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 3876 transitions, 71821 flow. Second operand has 17 states, 17 states have (on average 63.411764705882355) internal successors, (1078), 17 states have internal predecessors, (1078), 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) [2023-11-29 19:31:21,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:21,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 95 [2023-11-29 19:31:21,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:27,465 INFO L124 PetriNetUnfolderBase]: 5420/14822 cut-off events. [2023-11-29 19:31:27,465 INFO L125 PetriNetUnfolderBase]: For 18838/60499 co-relation queries the response was YES. [2023-11-29 19:31:27,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109758 conditions, 14822 events. 5420/14822 cut-off events. For 18838/60499 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 171837 event pairs, 3 based on Foata normal form. 291/15090 useless extension candidates. Maximal degree in co-relation 109612. Up to 7887 conditions per place. [2023-11-29 19:31:27,514 INFO L140 encePairwiseOnDemand]: 76/95 looper letters, 103 selfloop transitions, 22 changer transitions 4085/4270 dead transitions. [2023-11-29 19:31:27,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 4270 transitions, 87505 flow [2023-11-29 19:31:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 19:31:27,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 19:31:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1167 transitions. [2023-11-29 19:31:27,516 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7226006191950465 [2023-11-29 19:31:27,516 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1167 transitions. [2023-11-29 19:31:27,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1167 transitions. [2023-11-29 19:31:27,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:27,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1167 transitions. [2023-11-29 19:31:27,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 68.6470588235294) internal successors, (1167), 17 states have internal predecessors, (1167), 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) [2023-11-29 19:31:27,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 95.0) internal successors, (1710), 18 states have internal predecessors, (1710), 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) [2023-11-29 19:31:27,520 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 95.0) internal successors, (1710), 18 states have internal predecessors, (1710), 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) [2023-11-29 19:31:27,520 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 153 predicate places. [2023-11-29 19:31:27,520 INFO L500 AbstractCegarLoop]: Abstraction has has 251 places, 4270 transitions, 87505 flow [2023-11-29 19:31:27,521 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 63.411764705882355) internal successors, (1078), 17 states have internal predecessors, (1078), 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) [2023-11-29 19:31:27,521 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:27,521 INFO L232 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] [2023-11-29 19:31:27,521 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 19:31:27,521 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:27,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:27,521 INFO L85 PathProgramCache]: Analyzing trace with hash -746069971, now seen corresponding path program 1 times [2023-11-29 19:31:27,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:27,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902972273] [2023-11-29 19:31:27,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:27,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:29,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:29,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:29,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902972273] [2023-11-29 19:31:29,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902972273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:29,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:29,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-11-29 19:31:29,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992835615] [2023-11-29 19:31:29,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:29,172 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 19:31:29,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:29,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 19:31:29,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2023-11-29 19:31:29,173 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 95 [2023-11-29 19:31:29,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 4270 transitions, 87505 flow. Second operand has 20 states, 20 states have (on average 61.35) internal successors, (1227), 20 states have internal predecessors, (1227), 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) [2023-11-29 19:31:29,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:29,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 95 [2023-11-29 19:31:29,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:35,842 INFO L124 PetriNetUnfolderBase]: 5536/15498 cut-off events. [2023-11-29 19:31:35,843 INFO L125 PetriNetUnfolderBase]: For 24155/87896 co-relation queries the response was YES. [2023-11-29 19:31:35,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123767 conditions, 15498 events. 5536/15498 cut-off events. For 24155/87896 co-relation queries the response was YES. Maximal size of possible extension queue 1238. Compared 183251 event pairs, 5 based on Foata normal form. 270/15745 useless extension candidates. Maximal degree in co-relation 123606. Up to 8232 conditions per place. [2023-11-29 19:31:35,897 INFO L140 encePairwiseOnDemand]: 78/95 looper letters, 44 selfloop transitions, 9 changer transitions 4330/4436 dead transitions. [2023-11-29 19:31:35,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 4436 transitions, 99573 flow [2023-11-29 19:31:35,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 19:31:35,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 19:31:35,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1056 transitions. [2023-11-29 19:31:35,899 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6947368421052632 [2023-11-29 19:31:35,899 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1056 transitions. [2023-11-29 19:31:35,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1056 transitions. [2023-11-29 19:31:35,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:35,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1056 transitions. [2023-11-29 19:31:35,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 66.0) internal successors, (1056), 16 states have internal predecessors, (1056), 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) [2023-11-29 19:31:35,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 95.0) internal successors, (1615), 17 states have internal predecessors, (1615), 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) [2023-11-29 19:31:35,902 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 95.0) internal successors, (1615), 17 states have internal predecessors, (1615), 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) [2023-11-29 19:31:35,903 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 168 predicate places. [2023-11-29 19:31:35,903 INFO L500 AbstractCegarLoop]: Abstraction has has 266 places, 4436 transitions, 99573 flow [2023-11-29 19:31:35,903 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 61.35) internal successors, (1227), 20 states have internal predecessors, (1227), 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) [2023-11-29 19:31:35,903 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:35,903 INFO L232 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] [2023-11-29 19:31:35,903 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 19:31:35,904 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:35,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:35,904 INFO L85 PathProgramCache]: Analyzing trace with hash -748469819, now seen corresponding path program 2 times [2023-11-29 19:31:35,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:35,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357059088] [2023-11-29 19:31:35,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:35,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:36,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:36,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357059088] [2023-11-29 19:31:36,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357059088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:36,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:36,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 19:31:36,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872997628] [2023-11-29 19:31:36,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:36,298 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 19:31:36,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:36,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 19:31:36,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 19:31:36,299 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 95 [2023-11-29 19:31:36,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 4436 transitions, 99573 flow. Second operand has 9 states, 9 states have (on average 63.888888888888886) internal successors, (575), 9 states have internal predecessors, (575), 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) [2023-11-29 19:31:36,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:36,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 95 [2023-11-29 19:31:36,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:44,806 INFO L124 PetriNetUnfolderBase]: 5781/16512 cut-off events. [2023-11-29 19:31:44,806 INFO L125 PetriNetUnfolderBase]: For 27714/171523 co-relation queries the response was YES. [2023-11-29 19:31:44,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141599 conditions, 16512 events. 5781/16512 cut-off events. For 27714/171523 co-relation queries the response was YES. Maximal size of possible extension queue 1334. Compared 199737 event pairs, 2 based on Foata normal form. 171/16665 useless extension candidates. Maximal degree in co-relation 141425. Up to 10120 conditions per place. [2023-11-29 19:31:44,873 INFO L140 encePairwiseOnDemand]: 81/95 looper letters, 45 selfloop transitions, 9 changer transitions 4536/4641 dead transitions. [2023-11-29 19:31:44,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 4641 transitions, 113453 flow [2023-11-29 19:31:44,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:31:44,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:31:44,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 634 transitions. [2023-11-29 19:31:44,875 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7415204678362574 [2023-11-29 19:31:44,875 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 634 transitions. [2023-11-29 19:31:44,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 634 transitions. [2023-11-29 19:31:44,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:44,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 634 transitions. [2023-11-29 19:31:44,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 70.44444444444444) internal successors, (634), 9 states have internal predecessors, (634), 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) [2023-11-29 19:31:44,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 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) [2023-11-29 19:31:44,877 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 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) [2023-11-29 19:31:44,877 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 176 predicate places. [2023-11-29 19:31:44,877 INFO L500 AbstractCegarLoop]: Abstraction has has 274 places, 4641 transitions, 113453 flow [2023-11-29 19:31:44,878 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 63.888888888888886) internal successors, (575), 9 states have internal predecessors, (575), 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) [2023-11-29 19:31:44,878 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:44,878 INFO L232 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] [2023-11-29 19:31:44,878 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 19:31:44,878 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:44,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:44,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2028984061, now seen corresponding path program 3 times [2023-11-29 19:31:44,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:44,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143792491] [2023-11-29 19:31:44,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:44,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:45,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:45,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143792491] [2023-11-29 19:31:45,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143792491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:45,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:45,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 19:31:45,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312562248] [2023-11-29 19:31:45,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:45,404 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 19:31:45,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:45,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 19:31:45,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 19:31:45,406 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 95 [2023-11-29 19:31:45,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 4641 transitions, 113453 flow. Second operand has 13 states, 13 states have (on average 64.84615384615384) internal successors, (843), 13 states have internal predecessors, (843), 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) [2023-11-29 19:31:45,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:45,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 95 [2023-11-29 19:31:45,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:31:55,989 INFO L124 PetriNetUnfolderBase]: 5962/17218 cut-off events. [2023-11-29 19:31:55,989 INFO L125 PetriNetUnfolderBase]: For 37247/191855 co-relation queries the response was YES. [2023-11-29 19:31:56,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158738 conditions, 17218 events. 5962/17218 cut-off events. For 37247/191855 co-relation queries the response was YES. Maximal size of possible extension queue 1397. Compared 210789 event pairs, 3 based on Foata normal form. 111/17304 useless extension candidates. Maximal degree in co-relation 158552. Up to 10587 conditions per place. [2023-11-29 19:31:56,055 INFO L140 encePairwiseOnDemand]: 83/95 looper letters, 22 selfloop transitions, 5 changer transitions 4797/4876 dead transitions. [2023-11-29 19:31:56,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 4876 transitions, 128745 flow [2023-11-29 19:31:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 19:31:56,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 19:31:56,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 777 transitions. [2023-11-29 19:31:56,056 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7435406698564593 [2023-11-29 19:31:56,056 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 777 transitions. [2023-11-29 19:31:56,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 777 transitions. [2023-11-29 19:31:56,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:31:56,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 777 transitions. [2023-11-29 19:31:56,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.63636363636364) internal successors, (777), 11 states have internal predecessors, (777), 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) [2023-11-29 19:31:56,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 95.0) internal successors, (1140), 12 states have internal predecessors, (1140), 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) [2023-11-29 19:31:56,059 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 95.0) internal successors, (1140), 12 states have internal predecessors, (1140), 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) [2023-11-29 19:31:56,059 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 186 predicate places. [2023-11-29 19:31:56,060 INFO L500 AbstractCegarLoop]: Abstraction has has 284 places, 4876 transitions, 128745 flow [2023-11-29 19:31:56,060 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 64.84615384615384) internal successors, (843), 13 states have internal predecessors, (843), 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) [2023-11-29 19:31:56,060 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:31:56,060 INFO L232 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] [2023-11-29 19:31:56,060 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 19:31:56,060 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:31:56,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:31:56,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1527153601, now seen corresponding path program 4 times [2023-11-29 19:31:56,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:31:56,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099070648] [2023-11-29 19:31:56,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:31:56,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:31:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:31:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:31:56,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:31:56,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099070648] [2023-11-29 19:31:56,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099070648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:31:56,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:31:56,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 19:31:56,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252549241] [2023-11-29 19:31:56,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:31:56,407 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 19:31:56,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:31:56,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 19:31:56,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 19:31:56,409 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 95 [2023-11-29 19:31:56,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 4876 transitions, 128745 flow. Second operand has 10 states, 10 states have (on average 69.0) internal successors, (690), 10 states have internal predecessors, (690), 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) [2023-11-29 19:31:56,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:31:56,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 95 [2023-11-29 19:31:56,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:09,001 INFO L124 PetriNetUnfolderBase]: 6489/19408 cut-off events. [2023-11-29 19:32:09,002 INFO L125 PetriNetUnfolderBase]: For 48030/285269 co-relation queries the response was YES. [2023-11-29 19:32:09,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189200 conditions, 19408 events. 6489/19408 cut-off events. For 48030/285269 co-relation queries the response was YES. Maximal size of possible extension queue 1620. Compared 247293 event pairs, 4 based on Foata normal form. 188/19581 useless extension candidates. Maximal degree in co-relation 189005. Up to 11846 conditions per place. [2023-11-29 19:32:09,086 INFO L140 encePairwiseOnDemand]: 82/95 looper letters, 0 selfloop transitions, 0 changer transitions 5539/5539 dead transitions. [2023-11-29 19:32:09,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 5539 transitions, 157303 flow [2023-11-29 19:32:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:32:09,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:32:09,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 679 transitions. [2023-11-29 19:32:09,087 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7941520467836257 [2023-11-29 19:32:09,088 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 679 transitions. [2023-11-29 19:32:09,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 679 transitions. [2023-11-29 19:32:09,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:09,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 679 transitions. [2023-11-29 19:32:09,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.44444444444444) internal successors, (679), 9 states have internal predecessors, (679), 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) [2023-11-29 19:32:09,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 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) [2023-11-29 19:32:09,090 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 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) [2023-11-29 19:32:09,090 INFO L307 CegarLoopForPetriNet]: 98 programPoint places, 192 predicate places. [2023-11-29 19:32:09,090 INFO L500 AbstractCegarLoop]: Abstraction has has 290 places, 5539 transitions, 157303 flow [2023-11-29 19:32:09,090 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 69.0) internal successors, (690), 10 states have internal predecessors, (690), 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) [2023-11-29 19:32:09,095 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i_BEv2_AllErrorsAtOnce [2023-11-29 19:32:09,150 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-29 19:32:09,151 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-29 19:32:09,151 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-29 19:32:09,151 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-29 19:32:09,151 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-29 19:32:09,151 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 19:32:09,152 INFO L457 BasicCegarLoop]: Path program histogram: [5, 4, 2, 1, 1, 1] [2023-11-29 19:32:09,155 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 19:32:09,155 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 19:32:09,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:32:09 BasicIcfg [2023-11-29 19:32:09,159 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 19:32:09,160 INFO L158 Benchmark]: Toolchain (without parser) took 69141.84ms. Allocated memory was 549.5MB in the beginning and 5.9GB in the end (delta: 5.4GB). Free memory was 505.0MB in the beginning and 3.6GB in the end (delta: -3.1GB). Peak memory consumption was 2.5GB. Max. memory is 16.0GB. [2023-11-29 19:32:09,160 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 373.3MB. Free memory was 321.8MB in the beginning and 321.7MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 19:32:09,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.33ms. Allocated memory is still 549.5MB. Free memory was 504.7MB in the beginning and 479.0MB in the end (delta: 25.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-11-29 19:32:09,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.85ms. Allocated memory is still 549.5MB. Free memory was 479.0MB in the beginning and 475.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:32:09,160 INFO L158 Benchmark]: Boogie Preprocessor took 47.13ms. Allocated memory is still 549.5MB. Free memory was 475.7MB in the beginning and 473.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:32:09,160 INFO L158 Benchmark]: RCFGBuilder took 510.29ms. Allocated memory is still 549.5MB. Free memory was 473.7MB in the beginning and 422.9MB in the end (delta: 50.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.0GB. [2023-11-29 19:32:09,161 INFO L158 Benchmark]: TraceAbstraction took 68158.54ms. Allocated memory was 549.5MB in the beginning and 5.9GB in the end (delta: 5.4GB). Free memory was 422.4MB in the beginning and 3.6GB in the end (delta: -3.2GB). Peak memory consumption was 2.4GB. Max. memory is 16.0GB. [2023-11-29 19:32:09,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 373.3MB. Free memory was 321.8MB in the beginning and 321.7MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 372.33ms. Allocated memory is still 549.5MB. Free memory was 504.7MB in the beginning and 479.0MB in the end (delta: 25.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.85ms. Allocated memory is still 549.5MB. Free memory was 479.0MB in the beginning and 475.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 47.13ms. Allocated memory is still 549.5MB. Free memory was 475.7MB in the beginning and 473.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 510.29ms. Allocated memory is still 549.5MB. Free memory was 473.7MB in the beginning and 422.9MB in the end (delta: 50.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.0GB. * TraceAbstraction took 68158.54ms. Allocated memory was 549.5MB in the beginning and 5.9GB in the end (delta: 5.4GB). Free memory was 422.4MB in the beginning and 3.6GB in the end (delta: -3.2GB). Peak memory consumption was 2.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 116 locations, 5 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: 68.1s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 57.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1597 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1597 mSDsluCounter, 2454 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2070 mSDsCounter, 320 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4153 IncrementalHoareTripleChecker+Invalid, 4473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 320 mSolverCounterUnsat, 384 mSDtfsCounter, 4153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 286 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1347 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157303occurred in iteration=14, InterpolantAutomatonStates: 210, 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: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 928 NumberOfCodeBlocks, 928 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 914 ConstructedInterpolants, 0 QuantifiedInterpolants, 8536 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 19:32:09,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...