/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/safe016_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 11:47:11,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:47:11,678 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 11:47:11,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:47:11,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:47:11,705 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:47:11,705 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:47:11,705 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:47:11,706 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:47:11,706 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:47:11,706 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:47:11,706 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:47:11,707 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:47:11,707 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:47:11,707 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:47:11,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:47:11,708 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:47:11,708 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:47:11,708 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:47:11,708 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:47:11,713 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:47:11,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:47:11,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:47:11,715 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:47:11,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:47:11,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:47:11,715 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:47:11,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:47:11,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:47:11,716 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:47:11,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:47:11,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:47:11,717 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:47:11,717 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:47:11,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:47:11,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:47:11,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:47:11,896 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:47:11,896 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:47:11,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:47:12,942 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:47:13,171 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:47:13,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:47:13,187 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48cd28a0c/95f5b908d7704bc896c276aef43ab599/FLAG9ae140787 [2023-11-10 11:47:13,198 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48cd28a0c/95f5b908d7704bc896c276aef43ab599 [2023-11-10 11:47:13,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:47:13,201 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:47:13,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:47:13,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:47:13,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:47:13,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@685ad8ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13, skipping insertion in model container [2023-11-10 11:47:13,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,257 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:47:13,356 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-10 11:47:13,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:47:13,519 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:47:13,527 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-10 11:47:13,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:47:13,572 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:47:13,573 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:47:13,578 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:47:13,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13 WrapperNode [2023-11-10 11:47:13,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:47:13,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:47:13,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:47:13,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:47:13,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,608 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2023-11-10 11:47:13,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:47:13,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:47:13,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:47:13,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:47:13,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:47:13,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:47:13,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:47:13,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:47:13,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (1/1) ... [2023-11-10 11:47:13,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:47:13,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:47:13,677 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 11:47:13,679 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 11:47:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:47:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:47:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:47:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:47:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:47:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-10 11:47:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-10 11:47:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-10 11:47:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-10 11:47:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-10 11:47:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-10 11:47:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-10 11:47:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-10 11:47:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:47:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:47:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:47:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:47:13,742 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 11:47:13,829 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:47:13,831 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:47:13,986 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:47:13,993 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:47:13,993 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:47:13,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:47:13 BoogieIcfgContainer [2023-11-10 11:47:13,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:47:13,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:47:13,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:47:13,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:47:13,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:47:13" (1/3) ... [2023-11-10 11:47:14,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141567a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:47:14, skipping insertion in model container [2023-11-10 11:47:14,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:13" (2/3) ... [2023-11-10 11:47:14,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141567a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:47:14, skipping insertion in model container [2023-11-10 11:47:14,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:47:13" (3/3) ... [2023-11-10 11:47:14,011 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:47:14,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:47:14,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-10 11:47:14,023 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:47:14,096 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:47:14,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 106 transitions, 228 flow [2023-11-10 11:47:14,152 INFO L124 PetriNetUnfolderBase]: 2/102 cut-off events. [2023-11-10 11:47:14,152 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:47:14,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-11-10 11:47:14,156 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 106 transitions, 228 flow [2023-11-10 11:47:14,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 85 transitions, 182 flow [2023-11-10 11:47:14,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:47:14,169 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;@74f35654, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:47:14,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-10 11:47:14,187 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:47:14,187 INFO L124 PetriNetUnfolderBase]: 1/84 cut-off events. [2023-11-10 11:47:14,187 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:47:14,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:14,188 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] [2023-11-10 11:47:14,188 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 11:47:14,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:14,192 INFO L85 PathProgramCache]: Analyzing trace with hash -259260245, now seen corresponding path program 1 times [2023-11-10 11:47:14,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:14,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455878004] [2023-11-10 11:47:14,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:14,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:14,805 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 11:47:14,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:14,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455878004] [2023-11-10 11:47:14,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455878004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:14,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:14,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:14,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405442049] [2023-11-10 11:47:14,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:14,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:14,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:14,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:14,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:14,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-11-10 11:47:14,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 85 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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 11:47:14,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:14,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-11-10 11:47:14,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:15,379 INFO L124 PetriNetUnfolderBase]: 872/2143 cut-off events. [2023-11-10 11:47:15,380 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-10 11:47:15,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3567 conditions, 2143 events. 872/2143 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 15286 event pairs, 109 based on Foata normal form. 63/2138 useless extension candidates. Maximal degree in co-relation 3533. Up to 434 conditions per place. [2023-11-10 11:47:15,401 INFO L140 encePairwiseOnDemand]: 93/106 looper letters, 27 selfloop transitions, 8 changer transitions 56/155 dead transitions. [2023-11-10 11:47:15,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 155 transitions, 510 flow [2023-11-10 11:47:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:47:15,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:47:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1137 transitions. [2023-11-10 11:47:15,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8251088534107403 [2023-11-10 11:47:15,416 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1137 transitions. [2023-11-10 11:47:15,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1137 transitions. [2023-11-10 11:47:15,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:15,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1137 transitions. [2023-11-10 11:47:15,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.46153846153847) internal successors, (1137), 13 states have internal predecessors, (1137), 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 11:47:15,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 11:47:15,432 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 11:47:15,433 INFO L175 Difference]: Start difference. First operand has 97 places, 85 transitions, 182 flow. Second operand 13 states and 1137 transitions. [2023-11-10 11:47:15,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 155 transitions, 510 flow [2023-11-10 11:47:15,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 155 transitions, 504 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:47:15,442 INFO L231 Difference]: Finished difference. Result has 117 places, 89 transitions, 280 flow [2023-11-10 11:47:15,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=280, PETRI_PLACES=117, PETRI_TRANSITIONS=89} [2023-11-10 11:47:15,446 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 20 predicate places. [2023-11-10 11:47:15,446 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 89 transitions, 280 flow [2023-11-10 11:47:15,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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 11:47:15,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:15,447 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] [2023-11-10 11:47:15,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:47:15,448 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 11:47:15,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:15,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2054486550, now seen corresponding path program 1 times [2023-11-10 11:47:15,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:15,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597977214] [2023-11-10 11:47:15,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:15,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:15,702 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 11:47:15,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:15,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597977214] [2023-11-10 11:47:15,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597977214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:15,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:15,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:15,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014787477] [2023-11-10 11:47:15,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:15,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:15,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:15,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:15,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:15,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-11-10 11:47:15,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 89 transitions, 280 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:47:15,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:15,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-11-10 11:47:15,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:16,049 INFO L124 PetriNetUnfolderBase]: 553/1824 cut-off events. [2023-11-10 11:47:16,050 INFO L125 PetriNetUnfolderBase]: For 3478/3729 co-relation queries the response was YES. [2023-11-10 11:47:16,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5226 conditions, 1824 events. 553/1824 cut-off events. For 3478/3729 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 14250 event pairs, 62 based on Foata normal form. 45/1830 useless extension candidates. Maximal degree in co-relation 5180. Up to 408 conditions per place. [2023-11-10 11:47:16,065 INFO L140 encePairwiseOnDemand]: 94/106 looper letters, 33 selfloop transitions, 15 changer transitions 67/179 dead transitions. [2023-11-10 11:47:16,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 179 transitions, 1178 flow [2023-11-10 11:47:16,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:47:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:47:16,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1139 transitions. [2023-11-10 11:47:16,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8265602322206096 [2023-11-10 11:47:16,067 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1139 transitions. [2023-11-10 11:47:16,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1139 transitions. [2023-11-10 11:47:16,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:16,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1139 transitions. [2023-11-10 11:47:16,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.61538461538461) internal successors, (1139), 13 states have internal predecessors, (1139), 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 11:47:16,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 11:47:16,073 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 11:47:16,073 INFO L175 Difference]: Start difference. First operand has 117 places, 89 transitions, 280 flow. Second operand 13 states and 1139 transitions. [2023-11-10 11:47:16,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 179 transitions, 1178 flow [2023-11-10 11:47:16,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 179 transitions, 1150 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-11-10 11:47:16,085 INFO L231 Difference]: Finished difference. Result has 128 places, 100 transitions, 469 flow [2023-11-10 11:47:16,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=469, PETRI_PLACES=128, PETRI_TRANSITIONS=100} [2023-11-10 11:47:16,086 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 31 predicate places. [2023-11-10 11:47:16,086 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 100 transitions, 469 flow [2023-11-10 11:47:16,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:47:16,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:16,088 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] [2023-11-10 11:47:16,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:47:16,088 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 11:47:16,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:16,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1146381853, now seen corresponding path program 1 times [2023-11-10 11:47:16,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:16,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366819123] [2023-11-10 11:47:16,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:16,274 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 11:47:16,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:16,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366819123] [2023-11-10 11:47:16,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366819123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:16,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:16,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:16,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921985957] [2023-11-10 11:47:16,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:16,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:16,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:16,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:16,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:16,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-11-10 11:47:16,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 100 transitions, 469 flow. Second operand has 7 states, 7 states have (on average 82.28571428571429) internal successors, (576), 7 states have internal predecessors, (576), 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 11:47:16,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:16,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-11-10 11:47:16,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:16,537 INFO L124 PetriNetUnfolderBase]: 336/1138 cut-off events. [2023-11-10 11:47:16,537 INFO L125 PetriNetUnfolderBase]: For 4157/5660 co-relation queries the response was YES. [2023-11-10 11:47:16,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4161 conditions, 1138 events. 336/1138 cut-off events. For 4157/5660 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 7954 event pairs, 28 based on Foata normal form. 19/1123 useless extension candidates. Maximal degree in co-relation 4103. Up to 232 conditions per place. [2023-11-10 11:47:16,545 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 38 selfloop transitions, 17 changer transitions 43/162 dead transitions. [2023-11-10 11:47:16,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 162 transitions, 1266 flow [2023-11-10 11:47:16,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:47:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:47:16,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1119 transitions. [2023-11-10 11:47:16,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8120464441219158 [2023-11-10 11:47:16,547 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1119 transitions. [2023-11-10 11:47:16,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1119 transitions. [2023-11-10 11:47:16,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:16,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1119 transitions. [2023-11-10 11:47:16,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 86.07692307692308) internal successors, (1119), 13 states have internal predecessors, (1119), 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 11:47:16,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 11:47:16,551 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 11:47:16,551 INFO L175 Difference]: Start difference. First operand has 128 places, 100 transitions, 469 flow. Second operand 13 states and 1119 transitions. [2023-11-10 11:47:16,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 162 transitions, 1266 flow [2023-11-10 11:47:16,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 162 transitions, 1182 flow, removed 42 selfloop flow, removed 3 redundant places. [2023-11-10 11:47:16,562 INFO L231 Difference]: Finished difference. Result has 140 places, 106 transitions, 623 flow [2023-11-10 11:47:16,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=623, PETRI_PLACES=140, PETRI_TRANSITIONS=106} [2023-11-10 11:47:16,563 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 43 predicate places. [2023-11-10 11:47:16,563 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 106 transitions, 623 flow [2023-11-10 11:47:16,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.28571428571429) internal successors, (576), 7 states have internal predecessors, (576), 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 11:47:16,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:16,564 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 11:47:16,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:47:16,564 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 11:47:16,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:16,564 INFO L85 PathProgramCache]: Analyzing trace with hash 16116099, now seen corresponding path program 1 times [2023-11-10 11:47:16,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:16,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918154988] [2023-11-10 11:47:16,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:16,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:16,725 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 11:47:16,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:16,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918154988] [2023-11-10 11:47:16,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918154988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:16,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:16,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:47:16,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193977536] [2023-11-10 11:47:16,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:16,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:47:16,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:16,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:47:16,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:47:16,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-11-10 11:47:16,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 106 transitions, 623 flow. Second operand has 8 states, 8 states have (on average 82.125) internal successors, (657), 8 states have internal predecessors, (657), 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 11:47:16,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:16,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-11-10 11:47:16,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:16,951 INFO L124 PetriNetUnfolderBase]: 292/1140 cut-off events. [2023-11-10 11:47:16,951 INFO L125 PetriNetUnfolderBase]: For 5665/7103 co-relation queries the response was YES. [2023-11-10 11:47:16,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4398 conditions, 1140 events. 292/1140 cut-off events. For 5665/7103 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 8156 event pairs, 46 based on Foata normal form. 24/1123 useless extension candidates. Maximal degree in co-relation 4329. Up to 211 conditions per place. [2023-11-10 11:47:17,007 INFO L140 encePairwiseOnDemand]: 94/106 looper letters, 36 selfloop transitions, 19 changer transitions 80/199 dead transitions. [2023-11-10 11:47:17,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 199 transitions, 2041 flow [2023-11-10 11:47:17,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:47:17,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:47:17,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 957 transitions. [2023-11-10 11:47:17,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8207547169811321 [2023-11-10 11:47:17,009 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 957 transitions. [2023-11-10 11:47:17,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 957 transitions. [2023-11-10 11:47:17,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:17,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 957 transitions. [2023-11-10 11:47:17,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 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 11:47:17,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 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 11:47:17,013 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 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 11:47:17,013 INFO L175 Difference]: Start difference. First operand has 140 places, 106 transitions, 623 flow. Second operand 11 states and 957 transitions. [2023-11-10 11:47:17,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 199 transitions, 2041 flow [2023-11-10 11:47:17,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 199 transitions, 1928 flow, removed 54 selfloop flow, removed 10 redundant places. [2023-11-10 11:47:17,041 INFO L231 Difference]: Finished difference. Result has 139 places, 107 transitions, 667 flow [2023-11-10 11:47:17,042 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=667, PETRI_PLACES=139, PETRI_TRANSITIONS=107} [2023-11-10 11:47:17,043 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 42 predicate places. [2023-11-10 11:47:17,043 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 107 transitions, 667 flow [2023-11-10 11:47:17,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.125) internal successors, (657), 8 states have internal predecessors, (657), 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 11:47:17,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:17,043 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 11:47:17,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:47:17,044 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 11:47:17,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash 985809597, now seen corresponding path program 1 times [2023-11-10 11:47:17,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:17,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226646906] [2023-11-10 11:47:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:17,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:17,218 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 11:47:17,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:17,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226646906] [2023-11-10 11:47:17,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226646906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:17,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:17,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:17,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373184858] [2023-11-10 11:47:17,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:17,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:17,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:17,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:17,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:17,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-11-10 11:47:17,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 107 transitions, 667 flow. Second operand has 7 states, 7 states have (on average 82.57142857142857) internal successors, (578), 7 states have internal predecessors, (578), 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 11:47:17,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:17,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-11-10 11:47:17,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:17,492 INFO L124 PetriNetUnfolderBase]: 109/631 cut-off events. [2023-11-10 11:47:17,492 INFO L125 PetriNetUnfolderBase]: For 3196/4661 co-relation queries the response was YES. [2023-11-10 11:47:17,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2352 conditions, 631 events. 109/631 cut-off events. For 3196/4661 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4235 event pairs, 2 based on Foata normal form. 10/626 useless extension candidates. Maximal degree in co-relation 2296. Up to 93 conditions per place. [2023-11-10 11:47:17,498 INFO L140 encePairwiseOnDemand]: 96/106 looper letters, 38 selfloop transitions, 19 changer transitions 27/148 dead transitions. [2023-11-10 11:47:17,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 148 transitions, 1310 flow [2023-11-10 11:47:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:47:17,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:47:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1101 transitions. [2023-11-10 11:47:17,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7989840348330914 [2023-11-10 11:47:17,505 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1101 transitions. [2023-11-10 11:47:17,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1101 transitions. [2023-11-10 11:47:17,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:17,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1101 transitions. [2023-11-10 11:47:17,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.6923076923077) internal successors, (1101), 13 states have internal predecessors, (1101), 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 11:47:17,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 11:47:17,510 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 11:47:17,510 INFO L175 Difference]: Start difference. First operand has 139 places, 107 transitions, 667 flow. Second operand 13 states and 1101 transitions. [2023-11-10 11:47:17,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 148 transitions, 1310 flow [2023-11-10 11:47:17,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 148 transitions, 1185 flow, removed 32 selfloop flow, removed 12 redundant places. [2023-11-10 11:47:17,526 INFO L231 Difference]: Finished difference. Result has 145 places, 108 transitions, 731 flow [2023-11-10 11:47:17,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=731, PETRI_PLACES=145, PETRI_TRANSITIONS=108} [2023-11-10 11:47:17,528 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 48 predicate places. [2023-11-10 11:47:17,528 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 108 transitions, 731 flow [2023-11-10 11:47:17,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.57142857142857) internal successors, (578), 7 states have internal predecessors, (578), 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 11:47:17,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:17,529 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 11:47:17,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 11:47:17,529 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 11:47:17,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:17,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1626321182, now seen corresponding path program 1 times [2023-11-10 11:47:17,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:17,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026162382] [2023-11-10 11:47:17,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:17,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:17,644 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 11:47:17,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:17,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026162382] [2023-11-10 11:47:17,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026162382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:17,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:17,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:47:17,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247552968] [2023-11-10 11:47:17,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:17,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:47:17,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:17,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:47:17,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:47:17,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 106 [2023-11-10 11:47:17,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 108 transitions, 731 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 11:47:17,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:17,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 106 [2023-11-10 11:47:17,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:17,783 INFO L124 PetriNetUnfolderBase]: 57/510 cut-off events. [2023-11-10 11:47:17,784 INFO L125 PetriNetUnfolderBase]: For 3217/3761 co-relation queries the response was YES. [2023-11-10 11:47:17,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1789 conditions, 510 events. 57/510 cut-off events. For 3217/3761 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3279 event pairs, 6 based on Foata normal form. 15/514 useless extension candidates. Maximal degree in co-relation 1719. Up to 69 conditions per place. [2023-11-10 11:47:17,787 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 22 selfloop transitions, 9 changer transitions 15/126 dead transitions. [2023-11-10 11:47:17,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 126 transitions, 1029 flow [2023-11-10 11:47:17,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:47:17,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:47:17,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 807 transitions. [2023-11-10 11:47:17,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8459119496855346 [2023-11-10 11:47:17,789 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 807 transitions. [2023-11-10 11:47:17,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 807 transitions. [2023-11-10 11:47:17,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:17,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 807 transitions. [2023-11-10 11:47:17,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.66666666666667) internal successors, (807), 9 states have internal predecessors, (807), 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 11:47:17,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 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 11:47:17,792 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 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 11:47:17,792 INFO L175 Difference]: Start difference. First operand has 145 places, 108 transitions, 731 flow. Second operand 9 states and 807 transitions. [2023-11-10 11:47:17,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 126 transitions, 1029 flow [2023-11-10 11:47:17,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 126 transitions, 936 flow, removed 37 selfloop flow, removed 8 redundant places. [2023-11-10 11:47:17,805 INFO L231 Difference]: Finished difference. Result has 143 places, 106 transitions, 684 flow [2023-11-10 11:47:17,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=684, PETRI_PLACES=143, PETRI_TRANSITIONS=106} [2023-11-10 11:47:17,807 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 46 predicate places. [2023-11-10 11:47:17,807 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 106 transitions, 684 flow [2023-11-10 11:47:17,807 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 11:47:17,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:17,807 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] [2023-11-10 11:47:17,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 11:47:17,808 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 11:47:17,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:17,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1619168875, now seen corresponding path program 1 times [2023-11-10 11:47:17,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:17,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703325178] [2023-11-10 11:47:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:17,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:17,911 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 11:47:17,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:17,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703325178] [2023-11-10 11:47:17,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703325178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:17,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:17,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:47:17,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935241070] [2023-11-10 11:47:17,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:17,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:47:17,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:17,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:47:17,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:47:17,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2023-11-10 11:47:17,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 106 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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 11:47:17,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:17,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2023-11-10 11:47:17,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:18,433 INFO L124 PetriNetUnfolderBase]: 2620/5045 cut-off events. [2023-11-10 11:47:18,433 INFO L125 PetriNetUnfolderBase]: For 3815/4155 co-relation queries the response was YES. [2023-11-10 11:47:18,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10640 conditions, 5045 events. 2620/5045 cut-off events. For 3815/4155 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 44952 event pairs, 84 based on Foata normal form. 26/4562 useless extension candidates. Maximal degree in co-relation 10606. Up to 2051 conditions per place. [2023-11-10 11:47:18,466 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 37 selfloop transitions, 20 changer transitions 0/145 dead transitions. [2023-11-10 11:47:18,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 145 transitions, 880 flow [2023-11-10 11:47:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:47:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:47:18,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 909 transitions. [2023-11-10 11:47:18,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8575471698113207 [2023-11-10 11:47:18,469 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 909 transitions. [2023-11-10 11:47:18,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 909 transitions. [2023-11-10 11:47:18,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:18,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 909 transitions. [2023-11-10 11:47:18,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 90.9) internal successors, (909), 10 states have internal predecessors, (909), 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 11:47:18,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 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 11:47:18,472 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 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 11:47:18,472 INFO L175 Difference]: Start difference. First operand has 143 places, 106 transitions, 684 flow. Second operand 10 states and 909 transitions. [2023-11-10 11:47:18,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 145 transitions, 880 flow [2023-11-10 11:47:18,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 145 transitions, 843 flow, removed 14 selfloop flow, removed 9 redundant places. [2023-11-10 11:47:18,484 INFO L231 Difference]: Finished difference. Result has 143 places, 124 transitions, 790 flow [2023-11-10 11:47:18,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=790, PETRI_PLACES=143, PETRI_TRANSITIONS=124} [2023-11-10 11:47:18,485 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 46 predicate places. [2023-11-10 11:47:18,485 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 124 transitions, 790 flow [2023-11-10 11:47:18,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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 11:47:18,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:18,485 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] [2023-11-10 11:47:18,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-10 11:47:18,485 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 11:47:18,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:18,486 INFO L85 PathProgramCache]: Analyzing trace with hash -233210672, now seen corresponding path program 1 times [2023-11-10 11:47:18,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:18,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481572732] [2023-11-10 11:47:18,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:18,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:18,583 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 11:47:18,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:18,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481572732] [2023-11-10 11:47:18,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481572732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:18,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:18,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:18,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458362342] [2023-11-10 11:47:18,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:18,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:18,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:18,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:18,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:18,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2023-11-10 11:47:18,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 124 transitions, 790 flow. Second operand has 7 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 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 11:47:18,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:18,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2023-11-10 11:47:18,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:19,208 INFO L124 PetriNetUnfolderBase]: 2719/5402 cut-off events. [2023-11-10 11:47:19,208 INFO L125 PetriNetUnfolderBase]: For 17368/19952 co-relation queries the response was YES. [2023-11-10 11:47:19,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20883 conditions, 5402 events. 2719/5402 cut-off events. For 17368/19952 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 49397 event pairs, 20 based on Foata normal form. 401/5418 useless extension candidates. Maximal degree in co-relation 20852. Up to 2936 conditions per place. [2023-11-10 11:47:19,253 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 43 selfloop transitions, 38 changer transitions 0/169 dead transitions. [2023-11-10 11:47:19,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 169 transitions, 1244 flow [2023-11-10 11:47:19,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-10 11:47:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-10 11:47:19,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1182 transitions. [2023-11-10 11:47:19,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8577648766328012 [2023-11-10 11:47:19,256 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1182 transitions. [2023-11-10 11:47:19,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1182 transitions. [2023-11-10 11:47:19,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:19,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1182 transitions. [2023-11-10 11:47:19,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.92307692307692) internal successors, (1182), 13 states have internal predecessors, (1182), 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 11:47:19,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 11:47:19,260 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 11:47:19,260 INFO L175 Difference]: Start difference. First operand has 143 places, 124 transitions, 790 flow. Second operand 13 states and 1182 transitions. [2023-11-10 11:47:19,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 169 transitions, 1244 flow [2023-11-10 11:47:19,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 169 transitions, 1194 flow, removed 24 selfloop flow, removed 4 redundant places. [2023-11-10 11:47:19,284 INFO L231 Difference]: Finished difference. Result has 157 places, 144 transitions, 1033 flow [2023-11-10 11:47:19,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1033, PETRI_PLACES=157, PETRI_TRANSITIONS=144} [2023-11-10 11:47:19,285 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 60 predicate places. [2023-11-10 11:47:19,285 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 144 transitions, 1033 flow [2023-11-10 11:47:19,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 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 11:47:19,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:19,286 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] [2023-11-10 11:47:19,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-10 11:47:19,286 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 11:47:19,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:19,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1620467059, now seen corresponding path program 1 times [2023-11-10 11:47:19,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:19,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298743815] [2023-11-10 11:47:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:19,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:19,390 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 11:47:19,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:19,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298743815] [2023-11-10 11:47:19,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298743815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:19,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:19,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:47:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574141872] [2023-11-10 11:47:19,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:19,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:47:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:19,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:47:19,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:47:19,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2023-11-10 11:47:19,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 144 transitions, 1033 flow. Second operand has 8 states, 8 states have (on average 86.875) internal successors, (695), 8 states have internal predecessors, (695), 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 11:47:19,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:19,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2023-11-10 11:47:19,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:20,516 INFO L124 PetriNetUnfolderBase]: 2549/5135 cut-off events. [2023-11-10 11:47:20,516 INFO L125 PetriNetUnfolderBase]: For 45544/50254 co-relation queries the response was YES. [2023-11-10 11:47:20,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28361 conditions, 5135 events. 2549/5135 cut-off events. For 45544/50254 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 47693 event pairs, 1 based on Foata normal form. 531/5297 useless extension candidates. Maximal degree in co-relation 28327. Up to 2750 conditions per place. [2023-11-10 11:47:20,556 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 38 selfloop transitions, 58 changer transitions 12/196 dead transitions. [2023-11-10 11:47:20,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 196 transitions, 1771 flow [2023-11-10 11:47:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-10 11:47:20,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-10 11:47:20,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1455 transitions. [2023-11-10 11:47:20,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8579009433962265 [2023-11-10 11:47:20,560 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1455 transitions. [2023-11-10 11:47:20,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1455 transitions. [2023-11-10 11:47:20,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:20,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1455 transitions. [2023-11-10 11:47:20,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 90.9375) internal successors, (1455), 16 states have internal predecessors, (1455), 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 11:47:20,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 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 11:47:20,565 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 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 11:47:20,566 INFO L175 Difference]: Start difference. First operand has 157 places, 144 transitions, 1033 flow. Second operand 16 states and 1455 transitions. [2023-11-10 11:47:20,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 196 transitions, 1771 flow [2023-11-10 11:47:20,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 196 transitions, 1653 flow, removed 46 selfloop flow, removed 5 redundant places. [2023-11-10 11:47:20,700 INFO L231 Difference]: Finished difference. Result has 171 places, 170 transitions, 1384 flow [2023-11-10 11:47:20,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1384, PETRI_PLACES=171, PETRI_TRANSITIONS=170} [2023-11-10 11:47:20,700 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 74 predicate places. [2023-11-10 11:47:20,701 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 170 transitions, 1384 flow [2023-11-10 11:47:20,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 86.875) internal successors, (695), 8 states have internal predecessors, (695), 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 11:47:20,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:20,701 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] [2023-11-10 11:47:20,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-10 11:47:20,701 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 11:47:20,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:20,702 INFO L85 PathProgramCache]: Analyzing trace with hash 658555025, now seen corresponding path program 1 times [2023-11-10 11:47:20,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:20,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167430699] [2023-11-10 11:47:20,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:20,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:20,810 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 11:47:20,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:20,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167430699] [2023-11-10 11:47:20,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167430699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:20,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:20,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:47:20,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4791194] [2023-11-10 11:47:20,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:20,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:47:20,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:20,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:47:20,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:47:20,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2023-11-10 11:47:20,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 170 transitions, 1384 flow. Second operand has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 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 11:47:20,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:20,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2023-11-10 11:47:20,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:21,361 INFO L124 PetriNetUnfolderBase]: 1699/4866 cut-off events. [2023-11-10 11:47:21,361 INFO L125 PetriNetUnfolderBase]: For 33973/34507 co-relation queries the response was YES. [2023-11-10 11:47:21,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21470 conditions, 4866 events. 1699/4866 cut-off events. For 33973/34507 co-relation queries the response was YES. Maximal size of possible extension queue 648. Compared 52806 event pairs, 1 based on Foata normal form. 8/4626 useless extension candidates. Maximal degree in co-relation 21433. Up to 1579 conditions per place. [2023-11-10 11:47:21,395 INFO L140 encePairwiseOnDemand]: 99/106 looper letters, 21 selfloop transitions, 12 changer transitions 5/182 dead transitions. [2023-11-10 11:47:21,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 182 transitions, 1511 flow [2023-11-10 11:47:21,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-10 11:47:21,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-10 11:47:21,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 709 transitions. [2023-11-10 11:47:21,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8360849056603774 [2023-11-10 11:47:21,397 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 709 transitions. [2023-11-10 11:47:21,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 709 transitions. [2023-11-10 11:47:21,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:21,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 709 transitions. [2023-11-10 11:47:21,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 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 11:47:21,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 106.0) internal successors, (954), 9 states have internal predecessors, (954), 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 11:47:21,526 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 106.0) internal successors, (954), 9 states have internal predecessors, (954), 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 11:47:21,526 INFO L175 Difference]: Start difference. First operand has 171 places, 170 transitions, 1384 flow. Second operand 8 states and 709 transitions. [2023-11-10 11:47:21,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 182 transitions, 1511 flow [2023-11-10 11:47:21,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 182 transitions, 1186 flow, removed 120 selfloop flow, removed 14 redundant places. [2023-11-10 11:47:21,955 INFO L231 Difference]: Finished difference. Result has 169 places, 171 transitions, 1116 flow [2023-11-10 11:47:21,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1059, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1116, PETRI_PLACES=169, PETRI_TRANSITIONS=171} [2023-11-10 11:47:21,955 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 72 predicate places. [2023-11-10 11:47:21,955 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 171 transitions, 1116 flow [2023-11-10 11:47:21,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 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 11:47:21,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:21,956 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] [2023-11-10 11:47:21,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-10 11:47:21,956 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 11:47:21,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:21,957 INFO L85 PathProgramCache]: Analyzing trace with hash 615907357, now seen corresponding path program 2 times [2023-11-10 11:47:21,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:21,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081772756] [2023-11-10 11:47:21,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:21,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:22,162 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 11:47:22,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:22,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081772756] [2023-11-10 11:47:22,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081772756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:22,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:22,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 11:47:22,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128690833] [2023-11-10 11:47:22,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:22,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 11:47:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:22,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 11:47:22,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-10 11:47:22,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2023-11-10 11:47:22,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 171 transitions, 1116 flow. Second operand has 9 states, 9 states have (on average 86.77777777777777) internal successors, (781), 9 states have internal predecessors, (781), 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 11:47:22,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:22,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2023-11-10 11:47:22,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:23,065 INFO L124 PetriNetUnfolderBase]: 2748/5763 cut-off events. [2023-11-10 11:47:23,066 INFO L125 PetriNetUnfolderBase]: For 11562/14304 co-relation queries the response was YES. [2023-11-10 11:47:23,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20814 conditions, 5763 events. 2748/5763 cut-off events. For 11562/14304 co-relation queries the response was YES. Maximal size of possible extension queue 865. Compared 57602 event pairs, 1 based on Foata normal form. 511/5839 useless extension candidates. Maximal degree in co-relation 20778. Up to 832 conditions per place. [2023-11-10 11:47:23,147 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 11 selfloop transitions, 19 changer transitions 108/210 dead transitions. [2023-11-10 11:47:23,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 210 transitions, 1613 flow [2023-11-10 11:47:23,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-10 11:47:23,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-10 11:47:23,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1707 transitions. [2023-11-10 11:47:23,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8475670307845085 [2023-11-10 11:47:23,160 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1707 transitions. [2023-11-10 11:47:23,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1707 transitions. [2023-11-10 11:47:23,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:23,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1707 transitions. [2023-11-10 11:47:23,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 89.84210526315789) internal successors, (1707), 19 states have internal predecessors, (1707), 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 11:47:23,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 106.0) internal successors, (2120), 20 states have internal predecessors, (2120), 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 11:47:23,164 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 106.0) internal successors, (2120), 20 states have internal predecessors, (2120), 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 11:47:23,165 INFO L175 Difference]: Start difference. First operand has 169 places, 171 transitions, 1116 flow. Second operand 19 states and 1707 transitions. [2023-11-10 11:47:23,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 210 transitions, 1613 flow [2023-11-10 11:47:23,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 210 transitions, 1576 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-11-10 11:47:23,301 INFO L231 Difference]: Finished difference. Result has 183 places, 101 transitions, 527 flow [2023-11-10 11:47:23,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1079, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=527, PETRI_PLACES=183, PETRI_TRANSITIONS=101} [2023-11-10 11:47:23,301 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 86 predicate places. [2023-11-10 11:47:23,302 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 101 transitions, 527 flow [2023-11-10 11:47:23,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 86.77777777777777) internal successors, (781), 9 states have internal predecessors, (781), 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 11:47:23,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:47:23,302 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] [2023-11-10 11:47:23,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-10 11:47:23,302 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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 11:47:23,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:47:23,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1209692366, now seen corresponding path program 1 times [2023-11-10 11:47:23,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:47:23,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860948028] [2023-11-10 11:47:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:47:23,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:47:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:47:23,436 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 11:47:23,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:47:23,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860948028] [2023-11-10 11:47:23,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860948028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:47:23,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:47:23,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:47:23,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039773231] [2023-11-10 11:47:23,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:47:23,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:47:23,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:47:23,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:47:23,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:47:23,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-11-10 11:47:23,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 101 transitions, 527 flow. Second operand has 8 states, 8 states have (on average 82.5) internal successors, (660), 8 states have internal predecessors, (660), 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 11:47:23,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:47:23,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-11-10 11:47:23,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:47:23,500 INFO L124 PetriNetUnfolderBase]: 50/286 cut-off events. [2023-11-10 11:47:23,500 INFO L125 PetriNetUnfolderBase]: For 441/457 co-relation queries the response was YES. [2023-11-10 11:47:23,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 286 events. 50/286 cut-off events. For 441/457 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1339 event pairs, 3 based on Foata normal form. 1/275 useless extension candidates. Maximal degree in co-relation 755. Up to 40 conditions per place. [2023-11-10 11:47:23,501 INFO L140 encePairwiseOnDemand]: 97/106 looper letters, 0 selfloop transitions, 0 changer transitions 101/101 dead transitions. [2023-11-10 11:47:23,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 101 transitions, 589 flow [2023-11-10 11:47:23,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-10 11:47:23,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-10 11:47:23,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 663 transitions. [2023-11-10 11:47:23,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7818396226415094 [2023-11-10 11:47:23,503 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 663 transitions. [2023-11-10 11:47:23,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 663 transitions. [2023-11-10 11:47:23,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:47:23,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 663 transitions. [2023-11-10 11:47:23,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.875) internal successors, (663), 8 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:47:23,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 106.0) internal successors, (954), 9 states have internal predecessors, (954), 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 11:47:23,505 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 106.0) internal successors, (954), 9 states have internal predecessors, (954), 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 11:47:23,505 INFO L175 Difference]: Start difference. First operand has 183 places, 101 transitions, 527 flow. Second operand 8 states and 663 transitions. [2023-11-10 11:47:23,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 101 transitions, 589 flow [2023-11-10 11:47:23,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 101 transitions, 399 flow, removed 25 selfloop flow, removed 41 redundant places. [2023-11-10 11:47:23,507 INFO L231 Difference]: Finished difference. Result has 119 places, 0 transitions, 0 flow [2023-11-10 11:47:23,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=119, PETRI_TRANSITIONS=0} [2023-11-10 11:47:23,508 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, 22 predicate places. [2023-11-10 11:47:23,508 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 0 transitions, 0 flow [2023-11-10 11:47:23,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.5) internal successors, (660), 8 states have internal predecessors, (660), 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 11:47:23,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-10 11:47:23,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-11-10 11:47:23,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-10 11:47:23,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-10 11:47:23,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-10 11:47:23,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-10 11:47:23,512 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:47:23,514 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:47:23,514 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:47:23,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:47:23 BasicIcfg [2023-11-10 11:47:23,517 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:47:23,517 INFO L158 Benchmark]: Toolchain (without parser) took 10316.52ms. Allocated memory was 259.0MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 217.3MB in the beginning and 1.2GB in the end (delta: -994.2MB). Peak memory consumption was 247.9MB. Max. memory is 8.0GB. [2023-11-10 11:47:23,517 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 164.6MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:47:23,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.12ms. Allocated memory is still 259.0MB. Free memory was 216.7MB in the beginning and 196.3MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-10 11:47:23,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.59ms. Allocated memory is still 259.0MB. Free memory was 196.3MB in the beginning and 194.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 11:47:23,518 INFO L158 Benchmark]: Boogie Preprocessor took 16.17ms. Allocated memory is still 259.0MB. Free memory was 194.2MB in the beginning and 192.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 11:47:23,518 INFO L158 Benchmark]: RCFGBuilder took 369.83ms. Allocated memory is still 259.0MB. Free memory was 192.6MB in the beginning and 177.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-11-10 11:47:23,518 INFO L158 Benchmark]: TraceAbstraction took 9519.96ms. Allocated memory was 259.0MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 176.9MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 207.0MB. Max. memory is 8.0GB. [2023-11-10 11:47:23,519 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 164.6MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 377.12ms. Allocated memory is still 259.0MB. Free memory was 216.7MB in the beginning and 196.3MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.59ms. Allocated memory is still 259.0MB. Free memory was 196.3MB in the beginning and 194.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.17ms. Allocated memory is still 259.0MB. Free memory was 194.2MB in the beginning and 192.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 369.83ms. Allocated memory is still 259.0MB. Free memory was 192.6MB in the beginning and 177.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 9519.96ms. Allocated memory was 259.0MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 176.9MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 207.0MB. 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, 139 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: 9.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 722 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 722 mSDsluCounter, 902 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 700 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 929 IncrementalHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 202 mSDtfsCounter, 929 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1384occurred in iteration=9, InterpolantAutomatonStates: 146, 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, 1.8s InterpolantComputationTime, 787 NumberOfCodeBlocks, 787 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 775 ConstructedInterpolants, 0 QuantifiedInterpolants, 3401 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 11:47:23,532 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...