./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-18.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 378186c6d9208dcac7e742ba7e3d709cb5ca4759d0a6109e61503d5010b43317 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:04:34,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:04:34,233 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:04:34,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:04:34,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:04:34,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:04:34,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:04:34,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:04:34,285 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:04:34,286 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:04:34,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:04:34,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:04:34,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:04:34,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:04:34,291 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:04:34,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:04:34,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:04:34,292 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:04:34,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:04:34,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:04:34,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:04:34,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:04:34,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:04:34,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:04:34,310 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:04:34,311 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:04:34,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:04:34,311 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:04:34,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:04:34,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:04:34,312 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:04:34,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:04:34,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:04:34,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:04:34,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:04:34,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:04:34,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:04:34,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:04:34,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:04:34,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:04:34,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:04:34,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:04:34,317 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 378186c6d9208dcac7e742ba7e3d709cb5ca4759d0a6109e61503d5010b43317 [2024-11-20 09:04:34,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:04:34,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:04:34,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:04:34,642 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:04:34,642 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:04:34,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-18.i [2024-11-20 09:04:36,236 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:04:36,449 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:04:36,450 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-18.i [2024-11-20 09:04:36,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b97f219/9dbda78a5e934373a1080f2a68db93f7/FLAG26f2ae95e [2024-11-20 09:04:36,486 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b97f219/9dbda78a5e934373a1080f2a68db93f7 [2024-11-20 09:04:36,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:04:36,490 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:04:36,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:04:36,491 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:04:36,498 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:04:36,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:36,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb5e2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36, skipping insertion in model container [2024-11-20 09:04:36,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:36,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:04:36,698 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-18.i[917,930] [2024-11-20 09:04:36,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:04:36,815 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:04:36,826 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-18.i[917,930] [2024-11-20 09:04:36,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:04:36,890 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:04:36,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36 WrapperNode [2024-11-20 09:04:36,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:04:36,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:04:36,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:04:36,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:04:36,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:36,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:36,958 INFO L138 Inliner]: procedures = 30, calls = 139, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 485 [2024-11-20 09:04:36,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:04:36,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:04:36,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:04:36,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:04:36,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:36,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:36,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:36,986 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-20 09:04:36,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:36,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:37,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:37,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:37,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:37,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:37,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:04:37,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:04:37,028 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:04:37,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:04:37,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (1/1) ... [2024-11-20 09:04:37,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:04:37,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:04:37,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 09:04:37,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 09:04:37,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:04:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-20 09:04:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-20 09:04:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-20 09:04:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 09:04:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-20 09:04:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 09:04:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 09:04:37,138 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 09:04:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 09:04:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:04:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:04:37,280 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:04:37,282 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:04:37,918 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2024-11-20 09:04:37,919 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:04:37,941 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:04:37,941 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 09:04:37,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:04:37 BoogieIcfgContainer [2024-11-20 09:04:37,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:04:37,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:04:37,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:04:37,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:04:37,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:04:36" (1/3) ... [2024-11-20 09:04:37,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2810cb81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:04:37, skipping insertion in model container [2024-11-20 09:04:37,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:04:36" (2/3) ... [2024-11-20 09:04:37,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2810cb81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:04:37, skipping insertion in model container [2024-11-20 09:04:37,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:04:37" (3/3) ... [2024-11-20 09:04:37,955 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-18.i [2024-11-20 09:04:37,974 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:04:37,975 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:04:38,037 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:04:38,048 INFO L333 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, 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;@5e98d38a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:04:38,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 09:04:38,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-20 09:04:38,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-20 09:04:38,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:38,074 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:38,075 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:38,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:38,084 INFO L85 PathProgramCache]: Analyzing trace with hash -928902654, now seen corresponding path program 1 times [2024-11-20 09:04:38,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:38,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404364938] [2024-11-20 09:04:38,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:38,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:04:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:04:38,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:38,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404364938] [2024-11-20 09:04:38,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404364938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:38,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:38,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 09:04:38,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560366235] [2024-11-20 09:04:38,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:38,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 09:04:38,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:38,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 09:04:38,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 09:04:38,725 INFO L87 Difference]: Start difference. First operand has 108 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:04:38,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:38,760 INFO L93 Difference]: Finished difference Result 209 states and 326 transitions. [2024-11-20 09:04:38,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 09:04:38,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-11-20 09:04:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:38,777 INFO L225 Difference]: With dead ends: 209 [2024-11-20 09:04:38,778 INFO L226 Difference]: Without dead ends: 104 [2024-11-20 09:04:38,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 09:04:38,789 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:38,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:04:38,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-20 09:04:38,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-20 09:04:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 90 states have (on average 1.4333333333333333) internal successors, (129), 90 states have internal predecessors, (129), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-20 09:04:38,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 153 transitions. [2024-11-20 09:04:38,845 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 153 transitions. Word has length 107 [2024-11-20 09:04:38,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:38,845 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 153 transitions. [2024-11-20 09:04:38,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:04:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 153 transitions. [2024-11-20 09:04:38,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-20 09:04:38,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:38,851 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:38,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:04:38,852 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:38,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:38,853 INFO L85 PathProgramCache]: Analyzing trace with hash 2026293422, now seen corresponding path program 1 times [2024-11-20 09:04:38,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:38,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422482097] [2024-11-20 09:04:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:38,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:04:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:40,776 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:04:40,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:40,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422482097] [2024-11-20 09:04:40,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422482097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:40,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:40,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:04:40,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661789670] [2024-11-20 09:04:40,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:40,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:04:40,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:40,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:04:40,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:04:40,783 INFO L87 Difference]: Start difference. First operand 104 states and 153 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:04:41,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:41,269 INFO L93 Difference]: Finished difference Result 306 states and 453 transitions. [2024-11-20 09:04:41,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:04:41,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-11-20 09:04:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:41,272 INFO L225 Difference]: With dead ends: 306 [2024-11-20 09:04:41,272 INFO L226 Difference]: Without dead ends: 205 [2024-11-20 09:04:41,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:04:41,277 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 119 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:41,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 640 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:04:41,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-20 09:04:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 198. [2024-11-20 09:04:41,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 171 states have (on average 1.432748538011696) internal successors, (245), 171 states have internal predecessors, (245), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-20 09:04:41,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 293 transitions. [2024-11-20 09:04:41,327 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 293 transitions. Word has length 107 [2024-11-20 09:04:41,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:41,328 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 293 transitions. [2024-11-20 09:04:41,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:04:41,329 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 293 transitions. [2024-11-20 09:04:41,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-20 09:04:41,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:41,331 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:41,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:04:41,334 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:41,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:41,335 INFO L85 PathProgramCache]: Analyzing trace with hash 668226393, now seen corresponding path program 1 times [2024-11-20 09:04:41,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:41,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754687642] [2024-11-20 09:04:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:41,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:04:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:42,982 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:04:42,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754687642] [2024-11-20 09:04:42,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754687642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:42,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:42,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 09:04:42,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003246795] [2024-11-20 09:04:42,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:42,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:04:42,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:42,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:04:42,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:04:42,988 INFO L87 Difference]: Start difference. First operand 198 states and 293 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:04:43,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:43,491 INFO L93 Difference]: Finished difference Result 494 states and 733 transitions. [2024-11-20 09:04:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:04:43,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2024-11-20 09:04:43,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:43,498 INFO L225 Difference]: With dead ends: 494 [2024-11-20 09:04:43,500 INFO L226 Difference]: Without dead ends: 299 [2024-11-20 09:04:43,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:04:43,505 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 302 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:43,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 438 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:04:43,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-20 09:04:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 294. [2024-11-20 09:04:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 254 states have (on average 1.4291338582677164) internal successors, (363), 254 states have internal predecessors, (363), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 09:04:43,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 435 transitions. [2024-11-20 09:04:43,547 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 435 transitions. Word has length 108 [2024-11-20 09:04:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:43,548 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 435 transitions. [2024-11-20 09:04:43,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:04:43,548 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 435 transitions. [2024-11-20 09:04:43,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-20 09:04:43,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:43,550 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:43,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 09:04:43,551 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:43,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:43,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1488436341, now seen corresponding path program 1 times [2024-11-20 09:04:43,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:43,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008707766] [2024-11-20 09:04:43,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:43,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:04:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:04:43,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:43,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008707766] [2024-11-20 09:04:43,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008707766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:43,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:43,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:04:43,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940019362] [2024-11-20 09:04:43,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:43,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:04:43,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:43,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:04:43,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:04:43,893 INFO L87 Difference]: Start difference. First operand 294 states and 435 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:04:43,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:43,935 INFO L93 Difference]: Finished difference Result 494 states and 733 transitions. [2024-11-20 09:04:43,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:04:43,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-20 09:04:43,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:43,938 INFO L225 Difference]: With dead ends: 494 [2024-11-20 09:04:43,939 INFO L226 Difference]: Without dead ends: 297 [2024-11-20 09:04:43,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:04:43,941 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 3 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:43,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 427 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:04:43,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-20 09:04:43,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 296. [2024-11-20 09:04:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 256 states have (on average 1.42578125) internal successors, (365), 256 states have internal predecessors, (365), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 09:04:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 437 transitions. [2024-11-20 09:04:43,966 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 437 transitions. Word has length 108 [2024-11-20 09:04:43,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:43,966 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 437 transitions. [2024-11-20 09:04:43,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:04:43,967 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 437 transitions. [2024-11-20 09:04:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-20 09:04:43,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:43,969 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:43,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 09:04:43,969 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:43,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:43,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1218183053, now seen corresponding path program 1 times [2024-11-20 09:04:43,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:43,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485107232] [2024-11-20 09:04:43,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:43,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:04:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:04:44,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:44,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485107232] [2024-11-20 09:04:44,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485107232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:44,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:44,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:04:44,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571179008] [2024-11-20 09:04:44,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:44,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:04:44,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:44,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:04:44,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:04:44,245 INFO L87 Difference]: Start difference. First operand 296 states and 437 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:04:44,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:44,292 INFO L93 Difference]: Finished difference Result 401 states and 592 transitions. [2024-11-20 09:04:44,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:04:44,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-20 09:04:44,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:44,295 INFO L225 Difference]: With dead ends: 401 [2024-11-20 09:04:44,296 INFO L226 Difference]: Without dead ends: 299 [2024-11-20 09:04:44,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:04:44,297 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 3 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:44,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 429 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:04:44,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-20 09:04:44,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 297. [2024-11-20 09:04:44,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 257 states have (on average 1.424124513618677) internal successors, (366), 257 states have internal predecessors, (366), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 09:04:44,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 438 transitions. [2024-11-20 09:04:44,326 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 438 transitions. Word has length 108 [2024-11-20 09:04:44,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:44,327 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 438 transitions. [2024-11-20 09:04:44,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:04:44,328 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 438 transitions. [2024-11-20 09:04:44,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-20 09:04:44,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:44,330 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:44,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 09:04:44,331 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:44,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:44,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1476348491, now seen corresponding path program 1 times [2024-11-20 09:04:44,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:44,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697921018] [2024-11-20 09:04:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:44,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:45,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:45,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:45,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:45,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:04:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,078 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-20 09:04:46,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:46,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697921018] [2024-11-20 09:04:46,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697921018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:04:46,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587783600] [2024-11-20 09:04:46,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:46,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:04:46,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:04:46,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:04:46,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 09:04:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:46,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-20 09:04:46,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:04:46,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 09:04:47,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-20 09:04:48,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-20 09:04:48,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-20 09:04:49,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-20 09:04:49,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-20 09:04:50,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-20 09:04:50,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2024-11-20 09:04:51,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:51,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:51,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:51,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 38 [2024-11-20 09:04:51,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:51,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:51,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:51,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:51,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:51,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:51,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 09:04:51,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 53 [2024-11-20 09:04:51,515 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-20 09:04:51,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:04:52,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587783600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:04:52,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 09:04:52,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 28 [2024-11-20 09:04:52,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395647651] [2024-11-20 09:04:52,239 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 09:04:52,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-20 09:04:52,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:52,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-20 09:04:52,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1107, Unknown=0, NotChecked=0, Total=1260 [2024-11-20 09:04:52,241 INFO L87 Difference]: Start difference. First operand 297 states and 438 transitions. Second operand has 28 states, 26 states have (on average 3.769230769230769) internal successors, (98), 27 states have internal predecessors, (98), 7 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-20 09:04:55,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:55,632 INFO L93 Difference]: Finished difference Result 991 states and 1438 transitions. [2024-11-20 09:04:55,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-20 09:04:55,633 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.769230769230769) internal successors, (98), 27 states have internal predecessors, (98), 7 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 7 states have call successors, (24) Word has length 108 [2024-11-20 09:04:55,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:55,636 INFO L225 Difference]: With dead ends: 991 [2024-11-20 09:04:55,637 INFO L226 Difference]: Without dead ends: 697 [2024-11-20 09:04:55,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=607, Invalid=2815, Unknown=0, NotChecked=0, Total=3422 [2024-11-20 09:04:55,639 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 863 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 2230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:55,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1599 Invalid, 2230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2157 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-20 09:04:55,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-20 09:04:55,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 567. [2024-11-20 09:04:55,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 488 states have (on average 1.3872950819672132) internal successors, (677), 491 states have internal predecessors, (677), 66 states have call successors, (66), 12 states have call predecessors, (66), 12 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-20 09:04:55,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 809 transitions. [2024-11-20 09:04:55,695 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 809 transitions. Word has length 108 [2024-11-20 09:04:55,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:55,696 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 809 transitions. [2024-11-20 09:04:55,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.769230769230769) internal successors, (98), 27 states have internal predecessors, (98), 7 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-20 09:04:55,697 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 809 transitions. [2024-11-20 09:04:55,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 09:04:55,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:55,698 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:55,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 09:04:55,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-20 09:04:55,903 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:55,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:55,903 INFO L85 PathProgramCache]: Analyzing trace with hash -127855694, now seen corresponding path program 1 times [2024-11-20 09:04:55,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:55,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950421635] [2024-11-20 09:04:55,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:55,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:04:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:04:57,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:57,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950421635] [2024-11-20 09:04:57,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950421635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:57,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:57,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 09:04:57,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002201641] [2024-11-20 09:04:57,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:57,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 09:04:57,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:57,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 09:04:57,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:04:57,863 INFO L87 Difference]: Start difference. First operand 567 states and 809 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:04:59,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:04:59,372 INFO L93 Difference]: Finished difference Result 1250 states and 1773 transitions. [2024-11-20 09:04:59,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:04:59,373 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-20 09:04:59,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:04:59,378 INFO L225 Difference]: With dead ends: 1250 [2024-11-20 09:04:59,379 INFO L226 Difference]: Without dead ends: 867 [2024-11-20 09:04:59,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2024-11-20 09:04:59,384 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 609 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 09:04:59,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 741 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 09:04:59,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2024-11-20 09:04:59,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 705. [2024-11-20 09:04:59,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 607 states have (on average 1.3772652388797364) internal successors, (836), 613 states have internal predecessors, (836), 78 states have call successors, (78), 19 states have call predecessors, (78), 19 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-20 09:04:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 992 transitions. [2024-11-20 09:04:59,471 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 992 transitions. Word has length 109 [2024-11-20 09:04:59,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:04:59,472 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 992 transitions. [2024-11-20 09:04:59,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:04:59,473 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 992 transitions. [2024-11-20 09:04:59,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-20 09:04:59,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:04:59,474 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:04:59,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 09:04:59,475 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:04:59,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:04:59,475 INFO L85 PathProgramCache]: Analyzing trace with hash -208465257, now seen corresponding path program 1 times [2024-11-20 09:04:59,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:04:59,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440636022] [2024-11-20 09:04:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:04:59,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:04:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:04:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:04:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:04:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:04:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:04:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:04:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:04:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:04:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:04:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:04:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:04:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:04:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:04:59,785 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:04:59,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:04:59,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440636022] [2024-11-20 09:04:59,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440636022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:04:59,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:04:59,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:04:59,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415410826] [2024-11-20 09:04:59,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:04:59,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:04:59,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:04:59,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:04:59,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:04:59,788 INFO L87 Difference]: Start difference. First operand 705 states and 992 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:00,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:00,109 INFO L93 Difference]: Finished difference Result 1288 states and 1821 transitions. [2024-11-20 09:05:00,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:05:00,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-20 09:05:00,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:00,114 INFO L225 Difference]: With dead ends: 1288 [2024-11-20 09:05:00,115 INFO L226 Difference]: Without dead ends: 779 [2024-11-20 09:05:00,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:05:00,117 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 57 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:00,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 535 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:05:00,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-20 09:05:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 709. [2024-11-20 09:05:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 611 states have (on average 1.3731587561374796) internal successors, (839), 617 states have internal predecessors, (839), 78 states have call successors, (78), 19 states have call predecessors, (78), 19 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-20 09:05:00,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 995 transitions. [2024-11-20 09:05:00,190 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 995 transitions. Word has length 110 [2024-11-20 09:05:00,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:00,190 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 995 transitions. [2024-11-20 09:05:00,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:00,191 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 995 transitions. [2024-11-20 09:05:00,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-20 09:05:00,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:00,192 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:00,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 09:05:00,193 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:00,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:00,193 INFO L85 PathProgramCache]: Analyzing trace with hash -879318075, now seen corresponding path program 1 times [2024-11-20 09:05:00,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:00,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113406099] [2024-11-20 09:05:00,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:00,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:01,442 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:01,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:01,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113406099] [2024-11-20 09:05:01,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113406099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:01,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:01,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 09:05:01,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233078435] [2024-11-20 09:05:01,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:01,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 09:05:01,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:01,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 09:05:01,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:05:01,447 INFO L87 Difference]: Start difference. First operand 709 states and 995 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 09:05:02,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:02,096 INFO L93 Difference]: Finished difference Result 1610 states and 2275 transitions. [2024-11-20 09:05:02,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 09:05:02,096 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2024-11-20 09:05:02,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:02,103 INFO L225 Difference]: With dead ends: 1610 [2024-11-20 09:05:02,103 INFO L226 Difference]: Without dead ends: 921 [2024-11-20 09:05:02,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-20 09:05:02,107 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 212 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:02,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 960 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:05:02,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-20 09:05:02,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 915. [2024-11-20 09:05:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 789 states have (on average 1.373891001267427) internal successors, (1084), 795 states have internal predecessors, (1084), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-20 09:05:02,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1288 transitions. [2024-11-20 09:05:02,285 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1288 transitions. Word has length 110 [2024-11-20 09:05:02,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:02,286 INFO L471 AbstractCegarLoop]: Abstraction has 915 states and 1288 transitions. [2024-11-20 09:05:02,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 09:05:02,286 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1288 transitions. [2024-11-20 09:05:02,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-20 09:05:02,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:02,288 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:02,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 09:05:02,289 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:02,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:02,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1067030487, now seen corresponding path program 1 times [2024-11-20 09:05:02,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:02,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156438725] [2024-11-20 09:05:02,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:02,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:03,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:03,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156438725] [2024-11-20 09:05:03,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156438725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:03,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:03,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 09:05:03,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184439782] [2024-11-20 09:05:03,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:03,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:05:03,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:03,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:05:03,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:05:03,260 INFO L87 Difference]: Start difference. First operand 915 states and 1288 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:03,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:03,934 INFO L93 Difference]: Finished difference Result 1669 states and 2350 transitions. [2024-11-20 09:05:03,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:05:03,934 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-20 09:05:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:03,939 INFO L225 Difference]: With dead ends: 1669 [2024-11-20 09:05:03,940 INFO L226 Difference]: Without dead ends: 976 [2024-11-20 09:05:03,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-20 09:05:03,942 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 421 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:03,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 754 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:05:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-11-20 09:05:04,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 919. [2024-11-20 09:05:04,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 793 states have (on average 1.373266078184111) internal successors, (1089), 799 states have internal predecessors, (1089), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-20 09:05:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1293 transitions. [2024-11-20 09:05:04,035 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1293 transitions. Word has length 111 [2024-11-20 09:05:04,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:04,035 INFO L471 AbstractCegarLoop]: Abstraction has 919 states and 1293 transitions. [2024-11-20 09:05:04,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:04,036 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1293 transitions. [2024-11-20 09:05:04,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-20 09:05:04,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:04,039 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:04,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 09:05:04,039 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:04,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash -393371019, now seen corresponding path program 1 times [2024-11-20 09:05:04,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:04,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044265963] [2024-11-20 09:05:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:04,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:05,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:05,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044265963] [2024-11-20 09:05:05,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044265963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:05,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:05,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:05:05,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140607260] [2024-11-20 09:05:05,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:05,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:05:05,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:05,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:05:05,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:05:05,591 INFO L87 Difference]: Start difference. First operand 919 states and 1293 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:06,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:06,587 INFO L93 Difference]: Finished difference Result 1937 states and 2738 transitions. [2024-11-20 09:05:06,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 09:05:06,588 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-20 09:05:06,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:06,594 INFO L225 Difference]: With dead ends: 1937 [2024-11-20 09:05:06,595 INFO L226 Difference]: Without dead ends: 1242 [2024-11-20 09:05:06,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-11-20 09:05:06,599 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 367 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:06,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 772 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:05:06,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2024-11-20 09:05:06,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 941. [2024-11-20 09:05:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 815 states have (on average 1.3754601226993866) internal successors, (1121), 821 states have internal predecessors, (1121), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-20 09:05:06,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1325 transitions. [2024-11-20 09:05:06,718 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1325 transitions. Word has length 111 [2024-11-20 09:05:06,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:06,719 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1325 transitions. [2024-11-20 09:05:06,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:06,719 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1325 transitions. [2024-11-20 09:05:06,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-20 09:05:06,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:06,721 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:06,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 09:05:06,721 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:06,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:06,722 INFO L85 PathProgramCache]: Analyzing trace with hash 565436183, now seen corresponding path program 1 times [2024-11-20 09:05:06,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:06,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386976352] [2024-11-20 09:05:06,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:06,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:07,740 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:07,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:07,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386976352] [2024-11-20 09:05:07,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386976352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:07,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:07,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 09:05:07,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366327695] [2024-11-20 09:05:07,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:07,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:05:07,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:07,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:05:07,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:05:07,743 INFO L87 Difference]: Start difference. First operand 941 states and 1325 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:08,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:08,663 INFO L93 Difference]: Finished difference Result 1461 states and 2058 transitions. [2024-11-20 09:05:08,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 09:05:08,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-20 09:05:08,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:08,669 INFO L225 Difference]: With dead ends: 1461 [2024-11-20 09:05:08,669 INFO L226 Difference]: Without dead ends: 937 [2024-11-20 09:05:08,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:05:08,671 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 242 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:08,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 625 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 09:05:08,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-20 09:05:08,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 935. [2024-11-20 09:05:08,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 809 states have (on average 1.373300370828183) internal successors, (1111), 815 states have internal predecessors, (1111), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-20 09:05:08,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1315 transitions. [2024-11-20 09:05:08,774 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1315 transitions. Word has length 111 [2024-11-20 09:05:08,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:08,775 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1315 transitions. [2024-11-20 09:05:08,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:08,776 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1315 transitions. [2024-11-20 09:05:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-20 09:05:08,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:08,777 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:08,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 09:05:08,777 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:08,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:08,778 INFO L85 PathProgramCache]: Analyzing trace with hash 390825252, now seen corresponding path program 1 times [2024-11-20 09:05:08,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:08,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039139639] [2024-11-20 09:05:08,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:08,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:08,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:08,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039139639] [2024-11-20 09:05:08,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039139639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:08,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:08,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:05:08,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272122480] [2024-11-20 09:05:08,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:08,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:05:08,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:08,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:05:08,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:05:08,945 INFO L87 Difference]: Start difference. First operand 935 states and 1315 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:09,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:09,064 INFO L93 Difference]: Finished difference Result 1880 states and 2648 transitions. [2024-11-20 09:05:09,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:05:09,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-20 09:05:09,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:09,070 INFO L225 Difference]: With dead ends: 1880 [2024-11-20 09:05:09,070 INFO L226 Difference]: Without dead ends: 965 [2024-11-20 09:05:09,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:05:09,074 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:09,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 585 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:05:09,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-20 09:05:09,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2024-11-20 09:05:09,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 839 states have (on average 1.3599523241954707) internal successors, (1141), 845 states have internal predecessors, (1141), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-20 09:05:09,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1345 transitions. [2024-11-20 09:05:09,216 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1345 transitions. Word has length 111 [2024-11-20 09:05:09,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:09,219 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1345 transitions. [2024-11-20 09:05:09,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:09,220 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1345 transitions. [2024-11-20 09:05:09,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-20 09:05:09,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:09,222 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:09,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 09:05:09,222 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:09,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:09,223 INFO L85 PathProgramCache]: Analyzing trace with hash -139075208, now seen corresponding path program 1 times [2024-11-20 09:05:09,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:09,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991723581] [2024-11-20 09:05:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:09,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:10,337 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:10,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:10,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991723581] [2024-11-20 09:05:10,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991723581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:10,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:10,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 09:05:10,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002340803] [2024-11-20 09:05:10,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:10,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:05:10,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:10,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:05:10,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:05:10,341 INFO L87 Difference]: Start difference. First operand 965 states and 1345 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 09:05:10,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:10,980 INFO L93 Difference]: Finished difference Result 1925 states and 2689 transitions. [2024-11-20 09:05:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:05:10,981 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2024-11-20 09:05:10,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:10,986 INFO L225 Difference]: With dead ends: 1925 [2024-11-20 09:05:10,986 INFO L226 Difference]: Without dead ends: 980 [2024-11-20 09:05:10,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:05:10,989 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 118 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:10,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 975 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:05:10,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2024-11-20 09:05:11,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 972. [2024-11-20 09:05:11,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 846 states have (on average 1.3569739952718676) internal successors, (1148), 852 states have internal predecessors, (1148), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-20 09:05:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1352 transitions. [2024-11-20 09:05:11,089 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1352 transitions. Word has length 111 [2024-11-20 09:05:11,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:11,090 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1352 transitions. [2024-11-20 09:05:11,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 09:05:11,090 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1352 transitions. [2024-11-20 09:05:11,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 09:05:11,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:11,092 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:11,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 09:05:11,092 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:11,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:11,093 INFO L85 PathProgramCache]: Analyzing trace with hash -503496918, now seen corresponding path program 1 times [2024-11-20 09:05:11,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:11,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375865891] [2024-11-20 09:05:11,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:11,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:12,147 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:12,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:12,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375865891] [2024-11-20 09:05:12,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375865891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:12,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:12,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 09:05:12,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823750020] [2024-11-20 09:05:12,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:12,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:05:12,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:12,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:05:12,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:05:12,152 INFO L87 Difference]: Start difference. First operand 972 states and 1352 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:12,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:12,706 INFO L93 Difference]: Finished difference Result 1953 states and 2724 transitions. [2024-11-20 09:05:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:05:12,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-11-20 09:05:12,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:12,712 INFO L225 Difference]: With dead ends: 1953 [2024-11-20 09:05:12,713 INFO L226 Difference]: Without dead ends: 1001 [2024-11-20 09:05:12,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:05:12,717 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 212 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:12,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 472 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:05:12,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-11-20 09:05:12,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 982. [2024-11-20 09:05:12,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 856 states have (on average 1.3516355140186915) internal successors, (1157), 862 states have internal predecessors, (1157), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-20 09:05:12,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1361 transitions. [2024-11-20 09:05:12,863 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1361 transitions. Word has length 112 [2024-11-20 09:05:12,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:12,863 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1361 transitions. [2024-11-20 09:05:12,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:12,864 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1361 transitions. [2024-11-20 09:05:12,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 09:05:12,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:12,868 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:12,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 09:05:12,869 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:12,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:12,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1090302932, now seen corresponding path program 1 times [2024-11-20 09:05:12,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:12,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602818229] [2024-11-20 09:05:12,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:12,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:13,322 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:13,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:13,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602818229] [2024-11-20 09:05:13,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602818229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:13,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:13,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 09:05:13,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120315350] [2024-11-20 09:05:13,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:13,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:05:13,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:13,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:05:13,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:05:13,325 INFO L87 Difference]: Start difference. First operand 982 states and 1361 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:14,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:14,193 INFO L93 Difference]: Finished difference Result 2281 states and 3176 transitions. [2024-11-20 09:05:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:05:14,194 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-20 09:05:14,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:14,201 INFO L225 Difference]: With dead ends: 2281 [2024-11-20 09:05:14,201 INFO L226 Difference]: Without dead ends: 1546 [2024-11-20 09:05:14,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:05:14,204 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 362 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:14,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 935 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:05:14,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2024-11-20 09:05:14,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1047. [2024-11-20 09:05:14,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 921 states have (on average 1.3604777415852334) internal successors, (1253), 927 states have internal predecessors, (1253), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-20 09:05:14,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1457 transitions. [2024-11-20 09:05:14,316 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1457 transitions. Word has length 112 [2024-11-20 09:05:14,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:14,317 INFO L471 AbstractCegarLoop]: Abstraction has 1047 states and 1457 transitions. [2024-11-20 09:05:14,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:14,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1457 transitions. [2024-11-20 09:05:14,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 09:05:14,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:14,319 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:14,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 09:05:14,319 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:14,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1746645732, now seen corresponding path program 1 times [2024-11-20 09:05:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:14,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77692645] [2024-11-20 09:05:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:14,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:14,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77692645] [2024-11-20 09:05:14,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77692645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:14,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:14,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 09:05:14,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906243392] [2024-11-20 09:05:14,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:14,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 09:05:14,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:14,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 09:05:14,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:05:14,804 INFO L87 Difference]: Start difference. First operand 1047 states and 1457 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:15,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:15,386 INFO L93 Difference]: Finished difference Result 1623 states and 2267 transitions. [2024-11-20 09:05:15,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:05:15,387 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-20 09:05:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:15,392 INFO L225 Difference]: With dead ends: 1623 [2024-11-20 09:05:15,392 INFO L226 Difference]: Without dead ends: 1201 [2024-11-20 09:05:15,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-20 09:05:15,394 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 209 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:15,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 629 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:05:15,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-11-20 09:05:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1049. [2024-11-20 09:05:15,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 923 states have (on average 1.3564463705308776) internal successors, (1252), 929 states have internal predecessors, (1252), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-20 09:05:15,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1456 transitions. [2024-11-20 09:05:15,496 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1456 transitions. Word has length 112 [2024-11-20 09:05:15,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:15,497 INFO L471 AbstractCegarLoop]: Abstraction has 1049 states and 1456 transitions. [2024-11-20 09:05:15,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:15,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1456 transitions. [2024-11-20 09:05:15,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 09:05:15,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:15,499 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:15,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 09:05:15,499 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:15,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:15,500 INFO L85 PathProgramCache]: Analyzing trace with hash 653614227, now seen corresponding path program 1 times [2024-11-20 09:05:15,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:15,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655878100] [2024-11-20 09:05:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:15,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:16,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:16,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655878100] [2024-11-20 09:05:16,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655878100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:16,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:16,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:05:16,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139554300] [2024-11-20 09:05:16,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:16,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:05:16,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:16,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:05:16,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:05:16,348 INFO L87 Difference]: Start difference. First operand 1049 states and 1456 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:16,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:16,845 INFO L93 Difference]: Finished difference Result 2198 states and 3063 transitions. [2024-11-20 09:05:16,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:05:16,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-20 09:05:16,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:16,852 INFO L225 Difference]: With dead ends: 2198 [2024-11-20 09:05:16,852 INFO L226 Difference]: Without dead ends: 1169 [2024-11-20 09:05:16,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:05:16,855 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 114 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:16,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 719 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:05:16,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-11-20 09:05:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1161. [2024-11-20 09:05:16,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1021 states have (on average 1.3574926542605288) internal successors, (1386), 1027 states have internal predecessors, (1386), 114 states have call successors, (114), 25 states have call predecessors, (114), 25 states have return successors, (114), 108 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-20 09:05:16,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1614 transitions. [2024-11-20 09:05:16,963 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1614 transitions. Word has length 113 [2024-11-20 09:05:16,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:16,963 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1614 transitions. [2024-11-20 09:05:16,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:16,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1614 transitions. [2024-11-20 09:05:16,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 09:05:16,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:16,965 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:16,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 09:05:16,966 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:16,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:16,966 INFO L85 PathProgramCache]: Analyzing trace with hash 49930470, now seen corresponding path program 1 times [2024-11-20 09:05:16,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:16,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879009114] [2024-11-20 09:05:16,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:16,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:17,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:17,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:17,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:17,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:17,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:17,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:18,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:18,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:18,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:18,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:18,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:18,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:18,028 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:18,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:18,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879009114] [2024-11-20 09:05:18,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879009114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:18,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:18,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 09:05:18,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100287076] [2024-11-20 09:05:18,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:18,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 09:05:18,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:18,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 09:05:18,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:05:18,031 INFO L87 Difference]: Start difference. First operand 1161 states and 1614 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:18,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:18,760 INFO L93 Difference]: Finished difference Result 1973 states and 2744 transitions. [2024-11-20 09:05:18,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 09:05:18,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-20 09:05:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:18,769 INFO L225 Difference]: With dead ends: 1973 [2024-11-20 09:05:18,772 INFO L226 Difference]: Without dead ends: 1179 [2024-11-20 09:05:18,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:05:18,775 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 301 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:18,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 753 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 09:05:18,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2024-11-20 09:05:18,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1171. [2024-11-20 09:05:18,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1031 states have (on average 1.3540252182347237) internal successors, (1396), 1037 states have internal predecessors, (1396), 114 states have call successors, (114), 25 states have call predecessors, (114), 25 states have return successors, (114), 108 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-20 09:05:18,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1624 transitions. [2024-11-20 09:05:18,894 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1624 transitions. Word has length 113 [2024-11-20 09:05:18,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:18,895 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1624 transitions. [2024-11-20 09:05:18,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:18,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1624 transitions. [2024-11-20 09:05:18,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 09:05:18,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:18,897 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:18,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 09:05:18,898 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:18,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:18,898 INFO L85 PathProgramCache]: Analyzing trace with hash -173705668, now seen corresponding path program 1 times [2024-11-20 09:05:18,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:18,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467193876] [2024-11-20 09:05:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:18,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:20,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:20,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467193876] [2024-11-20 09:05:20,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467193876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:20,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:20,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 09:05:20,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704241852] [2024-11-20 09:05:20,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:20,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 09:05:20,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:20,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 09:05:20,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:05:20,572 INFO L87 Difference]: Start difference. First operand 1171 states and 1624 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:21,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:21,707 INFO L93 Difference]: Finished difference Result 2048 states and 2836 transitions. [2024-11-20 09:05:21,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 09:05:21,708 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-20 09:05:21,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:21,713 INFO L225 Difference]: With dead ends: 2048 [2024-11-20 09:05:21,714 INFO L226 Difference]: Without dead ends: 1244 [2024-11-20 09:05:21,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-20 09:05:21,716 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 714 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:21,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 1033 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:05:21,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2024-11-20 09:05:21,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1150. [2024-11-20 09:05:21,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1010 states have (on average 1.3514851485148516) internal successors, (1365), 1016 states have internal predecessors, (1365), 114 states have call successors, (114), 25 states have call predecessors, (114), 25 states have return successors, (114), 108 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-20 09:05:21,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1593 transitions. [2024-11-20 09:05:21,859 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1593 transitions. Word has length 113 [2024-11-20 09:05:21,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:21,860 INFO L471 AbstractCegarLoop]: Abstraction has 1150 states and 1593 transitions. [2024-11-20 09:05:21,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:21,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1593 transitions. [2024-11-20 09:05:21,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 09:05:21,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:21,863 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:21,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 09:05:21,863 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:21,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:21,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1093688689, now seen corresponding path program 1 times [2024-11-20 09:05:21,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:21,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828886019] [2024-11-20 09:05:21,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:21,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:22,031 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:22,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:22,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828886019] [2024-11-20 09:05:22,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828886019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:22,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:22,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:05:22,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085293802] [2024-11-20 09:05:22,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:22,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:05:22,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:22,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:05:22,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:05:22,034 INFO L87 Difference]: Start difference. First operand 1150 states and 1593 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:22,150 INFO L93 Difference]: Finished difference Result 2313 states and 3208 transitions. [2024-11-20 09:05:22,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:05:22,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-20 09:05:22,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:22,156 INFO L225 Difference]: With dead ends: 2313 [2024-11-20 09:05:22,157 INFO L226 Difference]: Without dead ends: 1183 [2024-11-20 09:05:22,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:05:22,160 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:22,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:05:22,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2024-11-20 09:05:22,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2024-11-20 09:05:22,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1043 states have (on average 1.3403643336529243) internal successors, (1398), 1049 states have internal predecessors, (1398), 114 states have call successors, (114), 25 states have call predecessors, (114), 25 states have return successors, (114), 108 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-20 09:05:22,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1626 transitions. [2024-11-20 09:05:22,271 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1626 transitions. Word has length 113 [2024-11-20 09:05:22,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:22,271 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1626 transitions. [2024-11-20 09:05:22,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:22,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1626 transitions. [2024-11-20 09:05:22,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 09:05:22,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:22,274 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:22,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 09:05:22,275 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:22,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:22,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1632418423, now seen corresponding path program 1 times [2024-11-20 09:05:22,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:22,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86283623] [2024-11-20 09:05:22,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:22,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:23,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:23,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86283623] [2024-11-20 09:05:23,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86283623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:23,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:23,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 09:05:23,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617759663] [2024-11-20 09:05:23,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:23,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 09:05:23,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:23,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 09:05:23,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-20 09:05:23,353 INFO L87 Difference]: Start difference. First operand 1183 states and 1626 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:24,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:24,411 INFO L93 Difference]: Finished difference Result 1527 states and 2097 transitions. [2024-11-20 09:05:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:05:24,412 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-20 09:05:24,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:24,419 INFO L225 Difference]: With dead ends: 1527 [2024-11-20 09:05:24,420 INFO L226 Difference]: Without dead ends: 1217 [2024-11-20 09:05:24,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2024-11-20 09:05:24,422 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 303 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:24,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 986 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 09:05:24,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-20 09:05:24,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1184. [2024-11-20 09:05:24,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1044 states have (on average 1.3400383141762453) internal successors, (1399), 1050 states have internal predecessors, (1399), 114 states have call successors, (114), 25 states have call predecessors, (114), 25 states have return successors, (114), 108 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-20 09:05:24,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1627 transitions. [2024-11-20 09:05:24,564 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1627 transitions. Word has length 113 [2024-11-20 09:05:24,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:24,564 INFO L471 AbstractCegarLoop]: Abstraction has 1184 states and 1627 transitions. [2024-11-20 09:05:24,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1627 transitions. [2024-11-20 09:05:24,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 09:05:24,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:24,567 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:24,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 09:05:24,568 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:24,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:24,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1626582179, now seen corresponding path program 1 times [2024-11-20 09:05:24,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:24,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165228877] [2024-11-20 09:05:24,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:24,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:25,688 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:25,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:25,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165228877] [2024-11-20 09:05:25,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165228877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:25,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:25,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 09:05:25,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981540667] [2024-11-20 09:05:25,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:25,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 09:05:25,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:25,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 09:05:25,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:05:25,690 INFO L87 Difference]: Start difference. First operand 1184 states and 1627 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 09:05:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:26,253 INFO L93 Difference]: Finished difference Result 1751 states and 2420 transitions. [2024-11-20 09:05:26,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:05:26,254 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2024-11-20 09:05:26,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:26,261 INFO L225 Difference]: With dead ends: 1751 [2024-11-20 09:05:26,261 INFO L226 Difference]: Without dead ends: 1314 [2024-11-20 09:05:26,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:05:26,263 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 215 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:26,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 743 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:05:26,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-11-20 09:05:26,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1312. [2024-11-20 09:05:26,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1158 states have (on average 1.342832469775475) internal successors, (1555), 1164 states have internal predecessors, (1555), 126 states have call successors, (126), 27 states have call predecessors, (126), 27 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-20 09:05:26,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1807 transitions. [2024-11-20 09:05:26,406 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1807 transitions. Word has length 113 [2024-11-20 09:05:26,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:26,407 INFO L471 AbstractCegarLoop]: Abstraction has 1312 states and 1807 transitions. [2024-11-20 09:05:26,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 09:05:26,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1807 transitions. [2024-11-20 09:05:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 09:05:26,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:26,412 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:26,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 09:05:26,412 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:26,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:26,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1148651117, now seen corresponding path program 1 times [2024-11-20 09:05:26,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:26,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593223026] [2024-11-20 09:05:26,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:26,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:27,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:27,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593223026] [2024-11-20 09:05:27,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593223026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:27,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:27,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 09:05:27,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861419374] [2024-11-20 09:05:27,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:27,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 09:05:27,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:27,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 09:05:27,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:05:27,118 INFO L87 Difference]: Start difference. First operand 1312 states and 1807 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:27,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:27,655 INFO L93 Difference]: Finished difference Result 2097 states and 2879 transitions. [2024-11-20 09:05:27,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 09:05:27,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-20 09:05:27,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:27,663 INFO L225 Difference]: With dead ends: 2097 [2024-11-20 09:05:27,664 INFO L226 Difference]: Without dead ends: 1786 [2024-11-20 09:05:27,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:05:27,666 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 369 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:27,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 607 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:05:27,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-11-20 09:05:27,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1335. [2024-11-20 09:05:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1181 states have (on average 1.3463166807790008) internal successors, (1590), 1187 states have internal predecessors, (1590), 126 states have call successors, (126), 27 states have call predecessors, (126), 27 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-20 09:05:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1842 transitions. [2024-11-20 09:05:27,792 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1842 transitions. Word has length 113 [2024-11-20 09:05:27,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:27,793 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1842 transitions. [2024-11-20 09:05:27,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1842 transitions. [2024-11-20 09:05:27,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-20 09:05:27,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:27,795 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:27,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 09:05:27,796 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:27,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:27,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1069576467, now seen corresponding path program 1 times [2024-11-20 09:05:27,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:27,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051169230] [2024-11-20 09:05:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:27,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:28,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:28,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:28,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:28,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:28,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:29,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:29,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:29,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:29,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:29,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:29,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:29,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:29,035 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:29,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:29,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051169230] [2024-11-20 09:05:29,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051169230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:29,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:29,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 09:05:29,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674856550] [2024-11-20 09:05:29,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:29,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 09:05:29,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:29,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 09:05:29,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:05:29,037 INFO L87 Difference]: Start difference. First operand 1335 states and 1842 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:30,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:30,039 INFO L93 Difference]: Finished difference Result 2567 states and 3532 transitions. [2024-11-20 09:05:30,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:05:30,040 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-20 09:05:30,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:30,047 INFO L225 Difference]: With dead ends: 2567 [2024-11-20 09:05:30,048 INFO L226 Difference]: Without dead ends: 1732 [2024-11-20 09:05:30,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-20 09:05:30,051 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 431 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:30,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1064 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:05:30,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-11-20 09:05:30,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1358. [2024-11-20 09:05:30,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1204 states have (on average 1.3463455149501662) internal successors, (1621), 1210 states have internal predecessors, (1621), 126 states have call successors, (126), 27 states have call predecessors, (126), 27 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-20 09:05:30,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1873 transitions. [2024-11-20 09:05:30,180 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1873 transitions. Word has length 114 [2024-11-20 09:05:30,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:30,180 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 1873 transitions. [2024-11-20 09:05:30,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:30,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1873 transitions. [2024-11-20 09:05:30,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-20 09:05:30,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:30,183 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:30,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 09:05:30,183 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:30,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:30,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1945527151, now seen corresponding path program 1 times [2024-11-20 09:05:30,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:30,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314606043] [2024-11-20 09:05:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:30,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:31,919 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:31,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:31,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314606043] [2024-11-20 09:05:31,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314606043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:31,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:31,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:05:31,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320784739] [2024-11-20 09:05:31,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:31,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:05:31,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:31,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:05:31,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:05:31,921 INFO L87 Difference]: Start difference. First operand 1358 states and 1873 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:33,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:33,042 INFO L93 Difference]: Finished difference Result 2371 states and 3257 transitions. [2024-11-20 09:05:33,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:05:33,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-20 09:05:33,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:33,050 INFO L225 Difference]: With dead ends: 2371 [2024-11-20 09:05:33,051 INFO L226 Difference]: Without dead ends: 1517 [2024-11-20 09:05:33,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-20 09:05:33,054 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 361 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:33,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 867 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 09:05:33,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2024-11-20 09:05:33,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1393. [2024-11-20 09:05:33,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1239 states have (on average 1.3405972558514931) internal successors, (1661), 1245 states have internal predecessors, (1661), 126 states have call successors, (126), 27 states have call predecessors, (126), 27 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-20 09:05:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1913 transitions. [2024-11-20 09:05:33,176 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1913 transitions. Word has length 114 [2024-11-20 09:05:33,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:33,177 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1913 transitions. [2024-11-20 09:05:33,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 09:05:33,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1913 transitions. [2024-11-20 09:05:33,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-20 09:05:33,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:33,179 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:33,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 09:05:33,180 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:33,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash -273087997, now seen corresponding path program 1 times [2024-11-20 09:05:33,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:33,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73219992] [2024-11-20 09:05:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:33,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,383 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:33,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:33,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73219992] [2024-11-20 09:05:33,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73219992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:33,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:33,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:05:33,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589613242] [2024-11-20 09:05:33,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:33,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:05:33,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:33,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:05:33,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:05:33,384 INFO L87 Difference]: Start difference. First operand 1393 states and 1913 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:33,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:05:33,627 INFO L93 Difference]: Finished difference Result 2069 states and 2842 transitions. [2024-11-20 09:05:33,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:05:33,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-11-20 09:05:33,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:05:33,633 INFO L225 Difference]: With dead ends: 2069 [2024-11-20 09:05:33,633 INFO L226 Difference]: Without dead ends: 1735 [2024-11-20 09:05:33,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:05:33,635 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 53 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:05:33,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 628 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:05:33,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2024-11-20 09:05:33,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1408. [2024-11-20 09:05:33,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1254 states have (on average 1.3397129186602872) internal successors, (1680), 1260 states have internal predecessors, (1680), 126 states have call successors, (126), 27 states have call predecessors, (126), 27 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-20 09:05:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1932 transitions. [2024-11-20 09:05:33,760 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1932 transitions. Word has length 114 [2024-11-20 09:05:33,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:05:33,760 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1932 transitions. [2024-11-20 09:05:33,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-20 09:05:33,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1932 transitions. [2024-11-20 09:05:33,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-20 09:05:33,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:05:33,762 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:05:33,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 09:05:33,762 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:05:33,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:05:33,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1284205247, now seen corresponding path program 1 times [2024-11-20 09:05:33,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:05:33,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599984246] [2024-11-20 09:05:33,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:05:33,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:05:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:05:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:05:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:05:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:05:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 09:05:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:05:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:05:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:05:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:05:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:05:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:05:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:05:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:05:33,991 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-20 09:05:33,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:05:33,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599984246] [2024-11-20 09:05:33,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599984246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:05:33,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:05:33,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:05:33,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684150245] [2024-11-20 09:05:33,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:05:33,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:05:33,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:05:33,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:05:33,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:05:33,994 INFO L87 Difference]: Start difference. First operand 1408 states and 1932 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)