/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:47:27,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:47:27,403 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 [2023-11-10 11:47:27,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:47:27,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:47:27,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:47:27,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:47:27,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:47:27,431 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:47:27,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:47:27,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:47:27,434 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:47:27,435 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:47:27,436 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:47:27,436 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:47:27,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:47:27,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:47:27,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:47:27,436 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:47:27,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:47:27,437 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:47:27,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:47:27,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:47:27,437 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:47:27,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:47:27,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:47:27,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:47:27,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:47:27,438 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:47:27,438 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:47:27,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:47:27,439 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:47:27,439 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:47:27,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:47:27,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:47:27,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:47:27,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:47:27,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:47:27,639 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:47:27,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:47:28,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:47:28,840 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:47:28,840 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:47:28,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1c7db84/2a20d92cf3dc4d1bbfae8024f5c00616/FLAG19f458166 [2023-11-10 11:47:28,867 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1c7db84/2a20d92cf3dc4d1bbfae8024f5c00616 [2023-11-10 11:47:28,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:47:28,880 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:47:28,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:47:28,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:47:28,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:47:28,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:47:28" (1/1) ... [2023-11-10 11:47:28,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389569d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:28, skipping insertion in model container [2023-11-10 11:47:28,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:47:28" (1/1) ... [2023-11-10 11:47:28,919 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:47:29,075 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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-10 11:47:29,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:47:29,211 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:47:29,220 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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-10 11:47:29,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:47:29,277 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:47:29,277 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:47:29,282 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:47:29,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29 WrapperNode [2023-11-10 11:47:29,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:47:29,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:47:29,284 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:47:29,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:47:29,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,333 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2023-11-10 11:47:29,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:47:29,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:47:29,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:47:29,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:47:29,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:47:29,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:47:29,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:47:29,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:47:29,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (1/1) ... [2023-11-10 11:47:29,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:47:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:47:29,409 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) [2023-11-10 11:47:29,415 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 [2023-11-10 11:47:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:47:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:47:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:47:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:47:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:47:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-10 11:47:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-10 11:47:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-10 11:47:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-10 11:47:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-10 11:47:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-10 11:47:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-10 11:47:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-10 11:47:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:47:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:47:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:47:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:47:29,440 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:47:29,538 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:47:29,539 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:47:29,669 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:47:29,675 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:47:29,675 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:47:29,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:47:29 BoogieIcfgContainer [2023-11-10 11:47:29,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:47:29,685 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:47:29,685 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:47:29,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:47:29,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:47:28" (1/3) ... [2023-11-10 11:47:29,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec3154a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:47:29, skipping insertion in model container [2023-11-10 11:47:29,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:29" (2/3) ... [2023-11-10 11:47:29,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec3154a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:47:29, skipping insertion in model container [2023-11-10 11:47:29,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:47:29" (3/3) ... [2023-11-10 11:47:29,689 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:47:29,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:47:29,702 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-10 11:47:29,703 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:47:29,767 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:47:29,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 107 transitions, 230 flow [2023-11-10 11:47:29,835 INFO L124 PetriNetUnfolderBase]: 2/103 cut-off events. [2023-11-10 11:47:29,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:47:29,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-11-10 11:47:29,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 107 transitions, 230 flow [2023-11-10 11:47:29,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 86 transitions, 184 flow [2023-11-10 11:47:29,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:47:29,853 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@3053f048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:47:29,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-10 11:47:29,879 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:47:29,879 INFO L124 PetriNetUnfolderBase]: 1/85 cut-off events. [2023-11-10 11:47:29,879 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:47:29,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:29,881 INFO L208 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] [2023-11-10 11:47:29,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:29,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:29,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2064608472, now seen corresponding path program 1 times [2023-11-10 11:47:29,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:29,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832839350] [2023-11-10 11:47:29,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:29,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:30,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:30,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:30,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832839350] [2023-11-10 11:47:30,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832839350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:30,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:30,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:30,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631410272] [2023-11-10 11:47:30,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:30,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:30,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:30,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:30,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:30,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2023-11-10 11:47:30,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 86 transitions, 184 flow. Second operand has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:47:30,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:30,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2023-11-10 11:47:30,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:30,914 INFO L124 PetriNetUnfolderBase]: 293/819 cut-off events. [2023-11-10 11:47:30,914 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-10 11:47:30,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 819 events. 293/819 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4691 event pairs, 8 based on Foata normal form. 33/822 useless extension candidates. Maximal degree in co-relation 1341. Up to 190 conditions per place. [2023-11-10 11:47:30,924 INFO L140 encePairwiseOnDemand]: 94/107 looper letters, 23 selfloop transitions, 8 changer transitions 44/141 dead transitions. [2023-11-10 11:47:30,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 141 transitions, 450 flow [2023-11-10 11:47:30,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:47:30,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:47:30,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1147 transitions. [2023-11-10 11:47:30,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8245866283249461 [2023-11-10 11:47:30,940 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1147 transitions. [2023-11-10 11:47:30,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1147 transitions. [2023-11-10 11:47:30,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:30,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1147 transitions. [2023-11-10 11:47:30,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 88.23076923076923) internal successors, (1147), 13 states have internal predecessors, (1147), 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) [2023-11-10 11:47:30,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-10 11:47:30,954 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-10 11:47:30,956 INFO L175 Difference]: Start difference. First operand has 98 places, 86 transitions, 184 flow. Second operand 13 states and 1147 transitions. [2023-11-10 11:47:30,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 141 transitions, 450 flow [2023-11-10 11:47:30,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 141 transitions, 444 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:47:30,961 INFO L231 Difference]: Finished difference. Result has 117 places, 88 transitions, 254 flow [2023-11-10 11:47:30,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=254, PETRI_PLACES=117, PETRI_TRANSITIONS=88} [2023-11-10 11:47:30,965 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 19 predicate places. [2023-11-10 11:47:30,965 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 88 transitions, 254 flow [2023-11-10 11:47:30,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:47:30,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:30,965 INFO L208 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] [2023-11-10 11:47:30,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:47:30,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:30,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:30,966 INFO L85 PathProgramCache]: Analyzing trace with hash -455867957, now seen corresponding path program 1 times [2023-11-10 11:47:30,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:30,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629719592] [2023-11-10 11:47:30,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:30,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:31,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:31,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:31,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629719592] [2023-11-10 11:47:31,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629719592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:31,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:31,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:31,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421389193] [2023-11-10 11:47:31,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:31,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:31,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:31,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:31,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:31,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2023-11-10 11:47:31,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 88 transitions, 254 flow. Second operand has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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) [2023-11-10 11:47:31,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:31,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2023-11-10 11:47:31,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:31,518 INFO L124 PetriNetUnfolderBase]: 195/692 cut-off events. [2023-11-10 11:47:31,518 INFO L125 PetriNetUnfolderBase]: For 1310/1458 co-relation queries the response was YES. [2023-11-10 11:47:31,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 692 events. 195/692 cut-off events. For 1310/1458 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3980 event pairs, 56 based on Foata normal form. 18/688 useless extension candidates. Maximal degree in co-relation 1948. Up to 186 conditions per place. [2023-11-10 11:47:31,525 INFO L140 encePairwiseOnDemand]: 98/107 looper letters, 28 selfloop transitions, 6 changer transitions 40/140 dead transitions. [2023-11-10 11:47:31,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 140 transitions, 739 flow [2023-11-10 11:47:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:47:31,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:47:31,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2023-11-10 11:47:31,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8159597411933861 [2023-11-10 11:47:31,528 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1135 transitions. [2023-11-10 11:47:31,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1135 transitions. [2023-11-10 11:47:31,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:31,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1135 transitions. [2023-11-10 11:47:31,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.3076923076923) internal successors, (1135), 13 states have internal predecessors, (1135), 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) [2023-11-10 11:47:31,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-10 11:47:31,534 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-10 11:47:31,534 INFO L175 Difference]: Start difference. First operand has 117 places, 88 transitions, 254 flow. Second operand 13 states and 1135 transitions. [2023-11-10 11:47:31,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 140 transitions, 739 flow [2023-11-10 11:47:31,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 140 transitions, 659 flow, removed 24 selfloop flow, removed 8 redundant places. [2023-11-10 11:47:31,545 INFO L231 Difference]: Finished difference. Result has 124 places, 90 transitions, 300 flow [2023-11-10 11:47:31,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=300, PETRI_PLACES=124, PETRI_TRANSITIONS=90} [2023-11-10 11:47:31,545 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 26 predicate places. [2023-11-10 11:47:31,546 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 90 transitions, 300 flow [2023-11-10 11:47:31,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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) [2023-11-10 11:47:31,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:31,547 INFO L208 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] [2023-11-10 11:47:31,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:47:31,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:31,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:31,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1836048470, now seen corresponding path program 1 times [2023-11-10 11:47:31,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:31,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206659366] [2023-11-10 11:47:31,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:31,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:31,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:31,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206659366] [2023-11-10 11:47:31,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206659366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:31,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:31,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:47:31,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238323307] [2023-11-10 11:47:31,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:31,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:47:31,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:47:31,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:47:31,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2023-11-10 11:47:31,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 90 transitions, 300 flow. Second operand has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2023-11-10 11:47:31,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:31,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2023-11-10 11:47:31,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:31,952 INFO L124 PetriNetUnfolderBase]: 123/541 cut-off events. [2023-11-10 11:47:31,952 INFO L125 PetriNetUnfolderBase]: For 1282/1827 co-relation queries the response was YES. [2023-11-10 11:47:31,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1652 conditions, 541 events. 123/541 cut-off events. For 1282/1827 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3029 event pairs, 39 based on Foata normal form. 12/529 useless extension candidates. Maximal degree in co-relation 1600. Up to 127 conditions per place. [2023-11-10 11:47:31,956 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 25 selfloop transitions, 8 changer transitions 40/139 dead transitions. [2023-11-10 11:47:31,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 139 transitions, 858 flow [2023-11-10 11:47:31,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:47:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:47:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 965 transitions. [2023-11-10 11:47:31,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8198810535259133 [2023-11-10 11:47:31,959 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 965 transitions. [2023-11-10 11:47:31,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 965 transitions. [2023-11-10 11:47:31,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:31,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 965 transitions. [2023-11-10 11:47:31,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.72727272727273) internal successors, (965), 11 states have internal predecessors, (965), 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) [2023-11-10 11:47:31,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-10 11:47:31,963 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-10 11:47:31,963 INFO L175 Difference]: Start difference. First operand has 124 places, 90 transitions, 300 flow. Second operand 11 states and 965 transitions. [2023-11-10 11:47:31,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 139 transitions, 858 flow [2023-11-10 11:47:31,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 139 transitions, 794 flow, removed 30 selfloop flow, removed 4 redundant places. [2023-11-10 11:47:31,970 INFO L231 Difference]: Finished difference. Result has 129 places, 91 transitions, 344 flow [2023-11-10 11:47:31,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=344, PETRI_PLACES=129, PETRI_TRANSITIONS=91} [2023-11-10 11:47:31,971 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 31 predicate places. [2023-11-10 11:47:31,972 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 91 transitions, 344 flow [2023-11-10 11:47:31,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2023-11-10 11:47:31,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:31,972 INFO L208 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] [2023-11-10 11:47:31,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:47:31,972 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:31,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:31,973 INFO L85 PathProgramCache]: Analyzing trace with hash -692493123, now seen corresponding path program 1 times [2023-11-10 11:47:31,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:31,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373976543] [2023-11-10 11:47:31,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:31,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:32,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:32,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:32,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373976543] [2023-11-10 11:47:32,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373976543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:32,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:32,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:32,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136654608] [2023-11-10 11:47:32,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:32,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:32,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:32,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:32,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:32,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2023-11-10 11:47:32,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 91 transitions, 344 flow. Second operand has 7 states, 7 states have (on average 84.42857142857143) internal successors, (591), 7 states have internal predecessors, (591), 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) [2023-11-10 11:47:32,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:32,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2023-11-10 11:47:32,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:32,286 INFO L124 PetriNetUnfolderBase]: 50/353 cut-off events. [2023-11-10 11:47:32,286 INFO L125 PetriNetUnfolderBase]: For 913/1062 co-relation queries the response was YES. [2023-11-10 11:47:32,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1024 conditions, 353 events. 50/353 cut-off events. For 913/1062 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1790 event pairs, 7 based on Foata normal form. 7/352 useless extension candidates. Maximal degree in co-relation 978. Up to 63 conditions per place. [2023-11-10 11:47:32,289 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 24 selfloop transitions, 9 changer transitions 17/116 dead transitions. [2023-11-10 11:47:32,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 116 transitions, 667 flow [2023-11-10 11:47:32,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:47:32,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:47:32,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 868 transitions. [2023-11-10 11:47:32,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.811214953271028 [2023-11-10 11:47:32,292 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 868 transitions. [2023-11-10 11:47:32,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 868 transitions. [2023-11-10 11:47:32,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:32,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 868 transitions. [2023-11-10 11:47:32,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 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) [2023-11-10 11:47:32,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-10 11:47:32,297 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-10 11:47:32,297 INFO L175 Difference]: Start difference. First operand has 129 places, 91 transitions, 344 flow. Second operand 10 states and 868 transitions. [2023-11-10 11:47:32,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 116 transitions, 667 flow [2023-11-10 11:47:32,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 116 transitions, 539 flow, removed 56 selfloop flow, removed 16 redundant places. [2023-11-10 11:47:32,303 INFO L231 Difference]: Finished difference. Result has 124 places, 92 transitions, 318 flow [2023-11-10 11:47:32,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=318, PETRI_PLACES=124, PETRI_TRANSITIONS=92} [2023-11-10 11:47:32,304 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 26 predicate places. [2023-11-10 11:47:32,304 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 92 transitions, 318 flow [2023-11-10 11:47:32,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.42857142857143) internal successors, (591), 7 states have internal predecessors, (591), 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) [2023-11-10 11:47:32,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:32,305 INFO L208 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] [2023-11-10 11:47:32,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:47:32,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:32,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:32,306 INFO L85 PathProgramCache]: Analyzing trace with hash 765349005, now seen corresponding path program 1 times [2023-11-10 11:47:32,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:32,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621212156] [2023-11-10 11:47:32,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:32,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:32,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:32,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:32,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621212156] [2023-11-10 11:47:32,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621212156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:32,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:32,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:32,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736511510] [2023-11-10 11:47:32,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:32,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:32,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:32,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:32,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:32,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-11-10 11:47:32,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 92 transitions, 318 flow. Second operand has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 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) [2023-11-10 11:47:32,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:32,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-11-10 11:47:32,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:32,616 INFO L124 PetriNetUnfolderBase]: 78/447 cut-off events. [2023-11-10 11:47:32,616 INFO L125 PetriNetUnfolderBase]: For 972/1780 co-relation queries the response was YES. [2023-11-10 11:47:32,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 447 events. 78/447 cut-off events. For 972/1780 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2611 event pairs, 18 based on Foata normal form. 10/443 useless extension candidates. Maximal degree in co-relation 1125. Up to 86 conditions per place. [2023-11-10 11:47:32,619 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 17 selfloop transitions, 5 changer transitions 27/124 dead transitions. [2023-11-10 11:47:32,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 124 transitions, 641 flow [2023-11-10 11:47:32,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:47:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:47:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 900 transitions. [2023-11-10 11:47:32,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8411214953271028 [2023-11-10 11:47:32,621 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 900 transitions. [2023-11-10 11:47:32,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 900 transitions. [2023-11-10 11:47:32,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:32,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 900 transitions. [2023-11-10 11:47:32,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2023-11-10 11:47:32,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-10 11:47:32,625 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-10 11:47:32,625 INFO L175 Difference]: Start difference. First operand has 124 places, 92 transitions, 318 flow. Second operand 10 states and 900 transitions. [2023-11-10 11:47:32,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 124 transitions, 641 flow [2023-11-10 11:47:32,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 124 transitions, 588 flow, removed 15 selfloop flow, removed 8 redundant places. [2023-11-10 11:47:32,629 INFO L231 Difference]: Finished difference. Result has 127 places, 92 transitions, 323 flow [2023-11-10 11:47:32,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=323, PETRI_PLACES=127, PETRI_TRANSITIONS=92} [2023-11-10 11:47:32,630 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 29 predicate places. [2023-11-10 11:47:32,630 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 92 transitions, 323 flow [2023-11-10 11:47:32,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 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) [2023-11-10 11:47:32,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:32,630 INFO L208 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] [2023-11-10 11:47:32,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 11:47:32,631 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:32,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:32,631 INFO L85 PathProgramCache]: Analyzing trace with hash 214188730, now seen corresponding path program 1 times [2023-11-10 11:47:32,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:32,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772649284] [2023-11-10 11:47:32,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:32,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:32,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:32,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772649284] [2023-11-10 11:47:32,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772649284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:32,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:32,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:47:32,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114540816] [2023-11-10 11:47:32,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:32,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:47:32,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:32,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:47:32,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:47:32,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-11-10 11:47:32,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 92 transitions, 323 flow. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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) [2023-11-10 11:47:32,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:32,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-11-10 11:47:32,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:33,055 INFO L124 PetriNetUnfolderBase]: 1525/3003 cut-off events. [2023-11-10 11:47:33,055 INFO L125 PetriNetUnfolderBase]: For 1343/1424 co-relation queries the response was YES. [2023-11-10 11:47:33,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6184 conditions, 3003 events. 1525/3003 cut-off events. For 1343/1424 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 23757 event pairs, 91 based on Foata normal form. 0/2696 useless extension candidates. Maximal degree in co-relation 6127. Up to 1165 conditions per place. [2023-11-10 11:47:33,072 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 37 selfloop transitions, 20 changer transitions 0/131 dead transitions. [2023-11-10 11:47:33,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 131 transitions, 519 flow [2023-11-10 11:47:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:47:33,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:47:33,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 919 transitions. [2023-11-10 11:47:33,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8588785046728972 [2023-11-10 11:47:33,074 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 919 transitions. [2023-11-10 11:47:33,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 919 transitions. [2023-11-10 11:47:33,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:33,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 919 transitions. [2023-11-10 11:47:33,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 91.9) internal successors, (919), 10 states have internal predecessors, (919), 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) [2023-11-10 11:47:33,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-10 11:47:33,078 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-10 11:47:33,078 INFO L175 Difference]: Start difference. First operand has 127 places, 92 transitions, 323 flow. Second operand 10 states and 919 transitions. [2023-11-10 11:47:33,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 131 transitions, 519 flow [2023-11-10 11:47:33,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 131 transitions, 485 flow, removed 9 selfloop flow, removed 11 redundant places. [2023-11-10 11:47:33,084 INFO L231 Difference]: Finished difference. Result has 125 places, 110 transitions, 432 flow [2023-11-10 11:47:33,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=432, PETRI_PLACES=125, PETRI_TRANSITIONS=110} [2023-11-10 11:47:33,086 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 27 predicate places. [2023-11-10 11:47:33,086 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 110 transitions, 432 flow [2023-11-10 11:47:33,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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) [2023-11-10 11:47:33,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:33,086 INFO L208 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] [2023-11-10 11:47:33,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 11:47:33,087 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:33,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:33,087 INFO L85 PathProgramCache]: Analyzing trace with hash 626653083, now seen corresponding path program 1 times [2023-11-10 11:47:33,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:33,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182572214] [2023-11-10 11:47:33,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:33,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:33,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:33,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182572214] [2023-11-10 11:47:33,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182572214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:33,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:33,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:33,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277008396] [2023-11-10 11:47:33,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:33,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:33,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:33,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:33,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:33,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-11-10 11:47:33,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 110 transitions, 432 flow. Second operand has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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) [2023-11-10 11:47:33,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:33,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-11-10 11:47:33,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:33,585 INFO L124 PetriNetUnfolderBase]: 1582/3150 cut-off events. [2023-11-10 11:47:33,585 INFO L125 PetriNetUnfolderBase]: For 9205/10635 co-relation queries the response was YES. [2023-11-10 11:47:33,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11905 conditions, 3150 events. 1582/3150 cut-off events. For 9205/10635 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 25441 event pairs, 31 based on Foata normal form. 203/3114 useless extension candidates. Maximal degree in co-relation 11851. Up to 1705 conditions per place. [2023-11-10 11:47:33,606 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 43 selfloop transitions, 38 changer transitions 0/155 dead transitions. [2023-11-10 11:47:33,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 155 transitions, 886 flow [2023-11-10 11:47:33,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:47:33,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:47:33,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1195 transitions. [2023-11-10 11:47:33,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8590941768511862 [2023-11-10 11:47:33,609 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1195 transitions. [2023-11-10 11:47:33,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1195 transitions. [2023-11-10 11:47:33,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:33,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1195 transitions. [2023-11-10 11:47:33,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 91.92307692307692) internal successors, (1195), 13 states have internal predecessors, (1195), 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) [2023-11-10 11:47:33,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-10 11:47:33,614 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-10 11:47:33,614 INFO L175 Difference]: Start difference. First operand has 125 places, 110 transitions, 432 flow. Second operand 13 states and 1195 transitions. [2023-11-10 11:47:33,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 155 transitions, 886 flow [2023-11-10 11:47:33,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 155 transitions, 884 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-10 11:47:33,623 INFO L231 Difference]: Finished difference. Result has 142 places, 130 transitions, 723 flow [2023-11-10 11:47:33,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=723, PETRI_PLACES=142, PETRI_TRANSITIONS=130} [2023-11-10 11:47:33,624 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 44 predicate places. [2023-11-10 11:47:33,624 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 130 transitions, 723 flow [2023-11-10 11:47:33,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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) [2023-11-10 11:47:33,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:33,624 INFO L208 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] [2023-11-10 11:47:33,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-10 11:47:33,624 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:33,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:33,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1217923696, now seen corresponding path program 1 times [2023-11-10 11:47:33,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:33,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712147722] [2023-11-10 11:47:33,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:33,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:33,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:33,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712147722] [2023-11-10 11:47:33,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712147722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:33,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:33,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:47:33,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801115109] [2023-11-10 11:47:33,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:33,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:47:33,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:33,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:47:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:47:33,742 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-11-10 11:47:33,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 130 transitions, 723 flow. Second operand has 8 states, 8 states have (on average 87.875) internal successors, (703), 8 states have internal predecessors, (703), 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) [2023-11-10 11:47:33,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:33,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-11-10 11:47:33,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:34,192 INFO L124 PetriNetUnfolderBase]: 1465/2953 cut-off events. [2023-11-10 11:47:34,192 INFO L125 PetriNetUnfolderBase]: For 26356/30277 co-relation queries the response was YES. [2023-11-10 11:47:34,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16190 conditions, 2953 events. 1465/2953 cut-off events. For 26356/30277 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 24393 event pairs, 5 based on Foata normal form. 306/3037 useless extension candidates. Maximal degree in co-relation 16128. Up to 1592 conditions per place. [2023-11-10 11:47:34,219 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 38 selfloop transitions, 58 changer transitions 12/182 dead transitions. [2023-11-10 11:47:34,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 182 transitions, 1461 flow [2023-11-10 11:47:34,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-10 11:47:34,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-10 11:47:34,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1471 transitions. [2023-11-10 11:47:34,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8592289719626168 [2023-11-10 11:47:34,222 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1471 transitions. [2023-11-10 11:47:34,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1471 transitions. [2023-11-10 11:47:34,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:34,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1471 transitions. [2023-11-10 11:47:34,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 91.9375) internal successors, (1471), 16 states have internal predecessors, (1471), 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) [2023-11-10 11:47:34,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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) [2023-11-10 11:47:34,228 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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) [2023-11-10 11:47:34,229 INFO L175 Difference]: Start difference. First operand has 142 places, 130 transitions, 723 flow. Second operand 16 states and 1471 transitions. [2023-11-10 11:47:34,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 182 transitions, 1461 flow [2023-11-10 11:47:34,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 182 transitions, 1358 flow, removed 42 selfloop flow, removed 4 redundant places. [2023-11-10 11:47:34,284 INFO L231 Difference]: Finished difference. Result has 157 places, 156 transitions, 1089 flow [2023-11-10 11:47:34,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1089, PETRI_PLACES=157, PETRI_TRANSITIONS=156} [2023-11-10 11:47:34,285 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 59 predicate places. [2023-11-10 11:47:34,285 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 156 transitions, 1089 flow [2023-11-10 11:47:34,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.875) internal successors, (703), 8 states have internal predecessors, (703), 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) [2023-11-10 11:47:34,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:34,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:47:34,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-10 11:47:34,286 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:34,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:34,286 INFO L85 PathProgramCache]: Analyzing trace with hash 524302548, now seen corresponding path program 1 times [2023-11-10 11:47:34,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:34,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680166794] [2023-11-10 11:47:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:34,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:34,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:34,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:34,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680166794] [2023-11-10 11:47:34,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680166794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:34,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:34,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:47:34,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484656994] [2023-11-10 11:47:34,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:34,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:47:34,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:34,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:47:34,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:47:34,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2023-11-10 11:47:34,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 156 transitions, 1089 flow. Second operand has 8 states, 8 states have (on average 84.25) internal successors, (674), 8 states have internal predecessors, (674), 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) [2023-11-10 11:47:34,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:34,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2023-11-10 11:47:34,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:34,725 INFO L124 PetriNetUnfolderBase]: 935/2705 cut-off events. [2023-11-10 11:47:34,725 INFO L125 PetriNetUnfolderBase]: For 18051/18261 co-relation queries the response was YES. [2023-11-10 11:47:34,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11861 conditions, 2705 events. 935/2705 cut-off events. For 18051/18261 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 25569 event pairs, 5 based on Foata normal form. 8/2575 useless extension candidates. Maximal degree in co-relation 11791. Up to 876 conditions per place. [2023-11-10 11:47:34,745 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 25 selfloop transitions, 10 changer transitions 7/172 dead transitions. [2023-11-10 11:47:34,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 172 transitions, 1269 flow [2023-11-10 11:47:34,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:47:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:47:34,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 780 transitions. [2023-11-10 11:47:34,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8099688473520249 [2023-11-10 11:47:34,747 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 780 transitions. [2023-11-10 11:47:34,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 780 transitions. [2023-11-10 11:47:34,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:34,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 780 transitions. [2023-11-10 11:47:34,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.66666666666667) internal successors, (780), 9 states have internal predecessors, (780), 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) [2023-11-10 11:47:34,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2023-11-10 11:47:34,750 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2023-11-10 11:47:34,750 INFO L175 Difference]: Start difference. First operand has 157 places, 156 transitions, 1089 flow. Second operand 9 states and 780 transitions. [2023-11-10 11:47:34,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 172 transitions, 1269 flow [2023-11-10 11:47:34,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 172 transitions, 956 flow, removed 114 selfloop flow, removed 11 redundant places. [2023-11-10 11:47:34,952 INFO L231 Difference]: Finished difference. Result has 158 places, 156 transitions, 805 flow [2023-11-10 11:47:34,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=805, PETRI_PLACES=158, PETRI_TRANSITIONS=156} [2023-11-10 11:47:34,953 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 60 predicate places. [2023-11-10 11:47:34,953 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 156 transitions, 805 flow [2023-11-10 11:47:34,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 84.25) internal successors, (674), 8 states have internal predecessors, (674), 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) [2023-11-10 11:47:34,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:34,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:47:34,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-10 11:47:34,954 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:34,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:34,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1374935836, now seen corresponding path program 2 times [2023-11-10 11:47:34,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:34,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055218651] [2023-11-10 11:47:34,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:34,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:35,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:35,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:35,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055218651] [2023-11-10 11:47:35,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055218651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:35,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:35,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 11:47:35,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483323059] [2023-11-10 11:47:35,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:35,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 11:47:35,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:35,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 11:47:35,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-10 11:47:35,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-11-10 11:47:35,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 156 transitions, 805 flow. Second operand has 9 states, 9 states have (on average 87.77777777777777) internal successors, (790), 9 states have internal predecessors, (790), 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) [2023-11-10 11:47:35,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:35,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-11-10 11:47:35,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:35,518 INFO L124 PetriNetUnfolderBase]: 1486/3165 cut-off events. [2023-11-10 11:47:35,518 INFO L125 PetriNetUnfolderBase]: For 6101/7019 co-relation queries the response was YES. [2023-11-10 11:47:35,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11201 conditions, 3165 events. 1486/3165 cut-off events. For 6101/7019 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 27950 event pairs, 2 based on Foata normal form. 342/3272 useless extension candidates. Maximal degree in co-relation 11169. Up to 472 conditions per place. [2023-11-10 11:47:35,538 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 27 selfloop transitions, 57 changer transitions 37/195 dead transitions. [2023-11-10 11:47:35,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 195 transitions, 1302 flow [2023-11-10 11:47:35,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-10 11:47:35,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-10 11:47:35,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1726 transitions. [2023-11-10 11:47:35,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8489916379734382 [2023-11-10 11:47:35,541 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1726 transitions. [2023-11-10 11:47:35,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1726 transitions. [2023-11-10 11:47:35,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:35,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1726 transitions. [2023-11-10 11:47:35,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 90.84210526315789) internal successors, (1726), 19 states have internal predecessors, (1726), 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) [2023-11-10 11:47:35,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 107.0) internal successors, (2140), 20 states have internal predecessors, (2140), 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) [2023-11-10 11:47:35,547 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 107.0) internal successors, (2140), 20 states have internal predecessors, (2140), 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) [2023-11-10 11:47:35,547 INFO L175 Difference]: Start difference. First operand has 158 places, 156 transitions, 805 flow. Second operand 19 states and 1726 transitions. [2023-11-10 11:47:35,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 195 transitions, 1302 flow [2023-11-10 11:47:35,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 195 transitions, 1263 flow, removed 8 selfloop flow, removed 8 redundant places. [2023-11-10 11:47:35,601 INFO L231 Difference]: Finished difference. Result has 171 places, 147 transitions, 840 flow [2023-11-10 11:47:35,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=840, PETRI_PLACES=171, PETRI_TRANSITIONS=147} [2023-11-10 11:47:35,602 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 73 predicate places. [2023-11-10 11:47:35,602 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 147 transitions, 840 flow [2023-11-10 11:47:35,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 87.77777777777777) internal successors, (790), 9 states have internal predecessors, (790), 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) [2023-11-10 11:47:35,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:35,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:47:35,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-10 11:47:35,603 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:47:35,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:35,603 INFO L85 PathProgramCache]: Analyzing trace with hash 277729375, now seen corresponding path program 1 times [2023-11-10 11:47:35,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:35,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730448541] [2023-11-10 11:47:35,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:35,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:35,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:47:35,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:35,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730448541] [2023-11-10 11:47:35,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730448541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:35,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:35,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:35,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066444814] [2023-11-10 11:47:35,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:35,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:35,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:35,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:35,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:35,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-11-10 11:47:35,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 147 transitions, 840 flow. Second operand has 7 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 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) [2023-11-10 11:47:35,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:35,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-11-10 11:47:35,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:35,999 INFO L124 PetriNetUnfolderBase]: 953/2786 cut-off events. [2023-11-10 11:47:35,999 INFO L125 PetriNetUnfolderBase]: For 6191/6480 co-relation queries the response was YES. [2023-11-10 11:47:36,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8548 conditions, 2786 events. 953/2786 cut-off events. For 6191/6480 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 28301 event pairs, 1 based on Foata normal form. 2/2610 useless extension candidates. Maximal degree in co-relation 8478. Up to 347 conditions per place. [2023-11-10 11:47:36,014 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2023-11-10 11:47:36,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 150 transitions, 905 flow [2023-11-10 11:47:36,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-10 11:47:36,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-10 11:47:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 622 transitions. [2023-11-10 11:47:36,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8304405874499332 [2023-11-10 11:47:36,015 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 622 transitions. [2023-11-10 11:47:36,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 622 transitions. [2023-11-10 11:47:36,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:36,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 622 transitions. [2023-11-10 11:47:36,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.85714285714286) internal successors, (622), 7 states have internal predecessors, (622), 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) [2023-11-10 11:47:36,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 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) [2023-11-10 11:47:36,017 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 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) [2023-11-10 11:47:36,017 INFO L175 Difference]: Start difference. First operand has 171 places, 147 transitions, 840 flow. Second operand 7 states and 622 transitions. [2023-11-10 11:47:36,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 150 transitions, 905 flow [2023-11-10 11:47:36,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 150 transitions, 741 flow, removed 19 selfloop flow, removed 22 redundant places. [2023-11-10 11:47:36,080 INFO L231 Difference]: Finished difference. Result has 149 places, 0 transitions, 0 flow [2023-11-10 11:47:36,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=149, PETRI_TRANSITIONS=0} [2023-11-10 11:47:36,081 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 51 predicate places. [2023-11-10 11:47:36,081 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 0 transitions, 0 flow [2023-11-10 11:47:36,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 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) [2023-11-10 11:47:36,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-10 11:47:36,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-11-10 11:47:36,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-10 11:47:36,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-10 11:47:36,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-10 11:47:36,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-10 11:47:36,084 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:47:36,086 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:47:36,086 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:47:36,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:47:36 BasicIcfg [2023-11-10 11:47:36,090 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:47:36,090 INFO L158 Benchmark]: Toolchain (without parser) took 7210.10ms. Allocated memory was 259.0MB in the beginning and 398.5MB in the end (delta: 139.5MB). Free memory was 210.6MB in the beginning and 185.5MB in the end (delta: 25.0MB). Peak memory consumption was 165.6MB. Max. memory is 8.0GB. [2023-11-10 11:47:36,090 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:47:36,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.93ms. Allocated memory is still 259.0MB. Free memory was 210.6MB in the beginning and 189.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-11-10 11:47:36,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.20ms. Allocated memory is still 259.0MB. Free memory was 189.6MB in the beginning and 187.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 11:47:36,091 INFO L158 Benchmark]: Boogie Preprocessor took 32.91ms. Allocated memory is still 259.0MB. Free memory was 187.5MB in the beginning and 185.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 11:47:36,091 INFO L158 Benchmark]: RCFGBuilder took 310.17ms. Allocated memory is still 259.0MB. Free memory was 185.9MB in the beginning and 171.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-11-10 11:47:36,091 INFO L158 Benchmark]: TraceAbstraction took 6404.61ms. Allocated memory was 259.0MB in the beginning and 398.5MB in the end (delta: 139.5MB). Free memory was 170.2MB in the beginning and 185.5MB in the end (delta: -15.3MB). Peak memory consumption was 124.7MB. Max. memory is 8.0GB. [2023-11-10 11:47:36,092 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 401.93ms. Allocated memory is still 259.0MB. Free memory was 210.6MB in the beginning and 189.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.20ms. Allocated memory is still 259.0MB. Free memory was 189.6MB in the beginning and 187.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.91ms. Allocated memory is still 259.0MB. Free memory was 187.5MB in the beginning and 185.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 310.17ms. Allocated memory is still 259.0MB. Free memory was 185.9MB in the beginning and 171.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 6404.61ms. Allocated memory was 259.0MB in the beginning and 398.5MB in the end (delta: 139.5MB). Free memory was 170.2MB in the beginning and 185.5MB in the end (delta: -15.3MB). Peak memory consumption was 124.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 9 procedures, 140 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: 6.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 638 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 638 mSDsluCounter, 699 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 542 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 885 IncrementalHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 157 mSDtfsCounter, 885 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1089occurred in iteration=8, InterpolantAutomatonStates: 131, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 733 NumberOfCodeBlocks, 733 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 722 ConstructedInterpolants, 0 QuantifiedInterpolants, 3064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-10 11:47:36,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...