./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-13.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-13.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 51f066b986277b9680a73b6d055c2daa6e446ab9f6af3f7045f30460b8f2f21f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:14:11,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:14:11,974 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:14:11,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:14:11,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:14:12,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:14:12,011 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:14:12,012 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:14:12,013 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:14:12,014 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:14:12,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:14:12,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:14:12,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:14:12,016 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:14:12,016 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:14:12,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:14:12,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:14:12,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:14:12,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:14:12,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:14:12,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:14:12,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:14:12,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:14:12,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:14:12,019 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:14:12,020 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:14:12,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:14:12,020 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:14:12,021 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:14:12,021 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:14:12,021 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:14:12,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:14:12,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:14:12,022 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:14:12,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:14:12,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:14:12,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:14:12,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:14:12,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:14:12,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:14:12,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:14:12,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:14:12,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51f066b986277b9680a73b6d055c2daa6e446ab9f6af3f7045f30460b8f2f21f [2024-11-19 01:14:12,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:14:12,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:14:12,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:14:12,313 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:14:12,314 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:14:12,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-13.i [2024-11-19 01:14:13,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:14:14,037 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:14:14,038 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-13.i [2024-11-19 01:14:14,050 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95c02156/9e46ef289b81472ca6b3ebdc93ec5131/FLAGdcd40fb51 [2024-11-19 01:14:14,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95c02156/9e46ef289b81472ca6b3ebdc93ec5131 [2024-11-19 01:14:14,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:14:14,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:14:14,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:14:14,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:14:14,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:14:14,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@394ec533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14, skipping insertion in model container [2024-11-19 01:14:14,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:14:14,329 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-13.i[917,930] [2024-11-19 01:14:14,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:14:14,420 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:14:14,432 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-13.i[917,930] [2024-11-19 01:14:14,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:14:14,491 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:14:14,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14 WrapperNode [2024-11-19 01:14:14,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:14:14,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:14:14,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:14:14,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:14:14,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,550 INFO L138 Inliner]: procedures = 30, calls = 142, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 482 [2024-11-19 01:14:14,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:14:14,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:14:14,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:14:14,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:14:14,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,584 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-19 01:14:14,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:14:14,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:14:14,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:14:14,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:14:14,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (1/1) ... [2024-11-19 01:14:14,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:14:14,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:14:14,657 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) [2024-11-19 01:14:14,659 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 [2024-11-19 01:14:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:14:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-19 01:14:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-19 01:14:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 01:14:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-19 01:14:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-19 01:14:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 01:14:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:14:14,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:14:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 01:14:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:14:14,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:14:14,833 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:14:14,835 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:14:15,330 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-19 01:14:15,330 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:14:15,348 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:14:15,350 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:14:15,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:14:15 BoogieIcfgContainer [2024-11-19 01:14:15,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:14:15,354 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:14:15,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:14:15,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:14:15,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:14:14" (1/3) ... [2024-11-19 01:14:15,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20983722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:14:15, skipping insertion in model container [2024-11-19 01:14:15,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:14:14" (2/3) ... [2024-11-19 01:14:15,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20983722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:14:15, skipping insertion in model container [2024-11-19 01:14:15,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:14:15" (3/3) ... [2024-11-19 01:14:15,361 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-13.i [2024-11-19 01:14:15,379 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:14:15,379 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:14:15,444 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:14:15,451 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;@7a847228, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:14:15,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:14:15,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 94 states have (on average 1.446808510638298) internal successors, (136), 95 states have internal predecessors, (136), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:14:15,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 01:14:15,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:15,467 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:15,467 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:15,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:15,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1817616766, now seen corresponding path program 1 times [2024-11-19 01:14:15,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:15,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454211580] [2024-11-19 01:14:15,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:15,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:16,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:16,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454211580] [2024-11-19 01:14:16,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454211580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:16,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:16,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:14:16,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494651973] [2024-11-19 01:14:16,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:16,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:14:16,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:16,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:14:16,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:14:16,130 INFO L87 Difference]: Start difference. First operand has 112 states, 94 states have (on average 1.446808510638298) internal successors, (136), 95 states have internal predecessors, (136), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:16,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:16,196 INFO L93 Difference]: Finished difference Result 219 states and 344 transitions. [2024-11-19 01:14:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:14:16,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2024-11-19 01:14:16,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:16,206 INFO L225 Difference]: With dead ends: 219 [2024-11-19 01:14:16,206 INFO L226 Difference]: Without dead ends: 110 [2024-11-19 01:14:16,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:14:16,213 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:16,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 460 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:14:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-19 01:14:16,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-19 01:14:16,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 93 states have (on average 1.4086021505376345) internal successors, (131), 93 states have internal predecessors, (131), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:14:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 161 transitions. [2024-11-19 01:14:16,265 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 161 transitions. Word has length 131 [2024-11-19 01:14:16,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:16,267 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 161 transitions. [2024-11-19 01:14:16,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:16,268 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 161 transitions. [2024-11-19 01:14:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 01:14:16,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:16,270 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:16,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:14:16,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:16,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:16,272 INFO L85 PathProgramCache]: Analyzing trace with hash 210969344, now seen corresponding path program 1 times [2024-11-19 01:14:16,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:16,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675525492] [2024-11-19 01:14:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:16,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:16,715 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-19 01:14:16,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:16,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675525492] [2024-11-19 01:14:16,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675525492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:14:16,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143976155] [2024-11-19 01:14:16,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:16,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:14:16,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:14:16,722 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) [2024-11-19 01:14:16,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:14:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:16,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 01:14:17,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:14:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:17,077 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:14:17,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143976155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:17,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:14:17,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-19 01:14:17,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12120650] [2024-11-19 01:14:17,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:17,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:14:17,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:17,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:14:17,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:14:17,084 INFO L87 Difference]: Start difference. First operand 110 states and 161 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:17,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:17,137 INFO L93 Difference]: Finished difference Result 219 states and 322 transitions. [2024-11-19 01:14:17,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:14:17,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 131 [2024-11-19 01:14:17,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:17,142 INFO L225 Difference]: With dead ends: 219 [2024-11-19 01:14:17,145 INFO L226 Difference]: Without dead ends: 112 [2024-11-19 01:14:17,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:14:17,147 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:17,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 460 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:14:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-19 01:14:17,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-19 01:14:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 95 states have (on average 1.4) internal successors, (133), 95 states have internal predecessors, (133), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:14:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 163 transitions. [2024-11-19 01:14:17,166 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 163 transitions. Word has length 131 [2024-11-19 01:14:17,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:17,166 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 163 transitions. [2024-11-19 01:14:17,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 163 transitions. [2024-11-19 01:14:17,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:14:17,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:17,169 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:17,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 01:14:17,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:14:17,371 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:17,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:17,371 INFO L85 PathProgramCache]: Analyzing trace with hash 466550713, now seen corresponding path program 1 times [2024-11-19 01:14:17,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:17,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238078635] [2024-11-19 01:14:17,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:17,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:19,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:19,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238078635] [2024-11-19 01:14:19,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238078635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:19,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:19,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:14:19,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445146015] [2024-11-19 01:14:19,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:19,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:14:19,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:19,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:14:19,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:14:19,566 INFO L87 Difference]: Start difference. First operand 112 states and 163 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:19,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:19,788 INFO L93 Difference]: Finished difference Result 289 states and 423 transitions. [2024-11-19 01:14:19,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:14:19,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 133 [2024-11-19 01:14:19,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:19,794 INFO L225 Difference]: With dead ends: 289 [2024-11-19 01:14:19,794 INFO L226 Difference]: Without dead ends: 180 [2024-11-19 01:14:19,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:14:19,796 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 122 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:19,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 345 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:14:19,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-19 01:14:19,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2024-11-19 01:14:19,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 144 states have (on average 1.3680555555555556) internal successors, (197), 144 states have internal predecessors, (197), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:14:19,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 257 transitions. [2024-11-19 01:14:19,839 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 257 transitions. Word has length 133 [2024-11-19 01:14:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:19,840 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 257 transitions. [2024-11-19 01:14:19,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:19,840 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 257 transitions. [2024-11-19 01:14:19,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:14:19,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:19,842 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:19,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:14:19,846 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:19,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:19,847 INFO L85 PathProgramCache]: Analyzing trace with hash -351097737, now seen corresponding path program 1 times [2024-11-19 01:14:19,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:19,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30536289] [2024-11-19 01:14:19,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:19,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:20,481 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:20,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:20,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30536289] [2024-11-19 01:14:20,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30536289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:20,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:20,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:14:20,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723129338] [2024-11-19 01:14:20,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:20,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:14:20,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:20,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:14:20,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:14:20,484 INFO L87 Difference]: Start difference. First operand 177 states and 257 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:20,854 INFO L93 Difference]: Finished difference Result 332 states and 484 transitions. [2024-11-19 01:14:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:14:20,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2024-11-19 01:14:20,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:20,859 INFO L225 Difference]: With dead ends: 332 [2024-11-19 01:14:20,859 INFO L226 Difference]: Without dead ends: 223 [2024-11-19 01:14:20,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:14:20,863 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 280 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:20,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 403 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:14:20,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-19 01:14:20,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 182. [2024-11-19 01:14:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 149 states have (on average 1.3691275167785235) internal successors, (204), 149 states have internal predecessors, (204), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:14:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 264 transitions. [2024-11-19 01:14:20,895 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 264 transitions. Word has length 133 [2024-11-19 01:14:20,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:20,896 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 264 transitions. [2024-11-19 01:14:20,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 264 transitions. [2024-11-19 01:14:20,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:14:20,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:20,899 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:20,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:14:20,900 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:20,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:20,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1939445639, now seen corresponding path program 1 times [2024-11-19 01:14:20,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:20,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793525364] [2024-11-19 01:14:20,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:20,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:21,198 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:21,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:21,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793525364] [2024-11-19 01:14:21,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793525364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:21,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:21,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:14:21,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452183374] [2024-11-19 01:14:21,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:21,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:14:21,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:21,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:14:21,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:14:21,202 INFO L87 Difference]: Start difference. First operand 182 states and 264 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:21,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:21,396 INFO L93 Difference]: Finished difference Result 331 states and 481 transitions. [2024-11-19 01:14:21,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:14:21,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2024-11-19 01:14:21,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:21,398 INFO L225 Difference]: With dead ends: 331 [2024-11-19 01:14:21,398 INFO L226 Difference]: Without dead ends: 217 [2024-11-19 01:14:21,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:14:21,400 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 95 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:21,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 371 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:14:21,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-19 01:14:21,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 186. [2024-11-19 01:14:21,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 153 states have (on average 1.3725490196078431) internal successors, (210), 153 states have internal predecessors, (210), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:14:21,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 270 transitions. [2024-11-19 01:14:21,416 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 270 transitions. Word has length 133 [2024-11-19 01:14:21,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:21,417 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 270 transitions. [2024-11-19 01:14:21,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:21,417 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 270 transitions. [2024-11-19 01:14:21,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:14:21,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:21,419 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:21,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:14:21,419 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:21,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:21,420 INFO L85 PathProgramCache]: Analyzing trace with hash -725381655, now seen corresponding path program 1 times [2024-11-19 01:14:21,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:21,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357651329] [2024-11-19 01:14:21,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:21,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:21,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:21,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357651329] [2024-11-19 01:14:21,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357651329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:21,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:21,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:14:21,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689406268] [2024-11-19 01:14:21,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:21,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:14:21,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:21,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:14:21,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:14:21,910 INFO L87 Difference]: Start difference. First operand 186 states and 270 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:22,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:22,248 INFO L93 Difference]: Finished difference Result 356 states and 517 transitions. [2024-11-19 01:14:22,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:14:22,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-19 01:14:22,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:22,250 INFO L225 Difference]: With dead ends: 356 [2024-11-19 01:14:22,250 INFO L226 Difference]: Without dead ends: 238 [2024-11-19 01:14:22,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:14:22,252 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 212 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:22,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 600 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:14:22,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-19 01:14:22,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 209. [2024-11-19 01:14:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 176 states have (on average 1.3806818181818181) internal successors, (243), 176 states have internal predecessors, (243), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:14:22,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 303 transitions. [2024-11-19 01:14:22,272 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 303 transitions. Word has length 134 [2024-11-19 01:14:22,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:22,273 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 303 transitions. [2024-11-19 01:14:22,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:22,273 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 303 transitions. [2024-11-19 01:14:22,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:14:22,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:22,275 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:22,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:14:22,275 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:22,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:22,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1118408665, now seen corresponding path program 1 times [2024-11-19 01:14:22,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:22,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55149631] [2024-11-19 01:14:22,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:22,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:22,364 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:22,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:22,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55149631] [2024-11-19 01:14:22,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55149631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:22,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:22,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:14:22,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031196732] [2024-11-19 01:14:22,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:22,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:14:22,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:22,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:14:22,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:14:22,366 INFO L87 Difference]: Start difference. First operand 209 states and 303 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:22,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:22,389 INFO L93 Difference]: Finished difference Result 352 states and 513 transitions. [2024-11-19 01:14:22,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:14:22,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-19 01:14:22,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:22,392 INFO L225 Difference]: With dead ends: 352 [2024-11-19 01:14:22,392 INFO L226 Difference]: Without dead ends: 211 [2024-11-19 01:14:22,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:14:22,393 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:22,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 309 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:14:22,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-19 01:14:22,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-19 01:14:22,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 178 states have (on average 1.3764044943820224) internal successors, (245), 178 states have internal predecessors, (245), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:14:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 305 transitions. [2024-11-19 01:14:22,410 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 305 transitions. Word has length 134 [2024-11-19 01:14:22,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:22,410 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 305 transitions. [2024-11-19 01:14:22,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:22,411 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 305 transitions. [2024-11-19 01:14:22,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:14:22,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:22,412 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:22,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:14:22,412 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:22,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:22,413 INFO L85 PathProgramCache]: Analyzing trace with hash -417344087, now seen corresponding path program 1 times [2024-11-19 01:14:22,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:22,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520507350] [2024-11-19 01:14:22,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:22,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:23,532 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:23,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:23,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520507350] [2024-11-19 01:14:23,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520507350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:23,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:23,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:14:23,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052647547] [2024-11-19 01:14:23,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:23,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:14:23,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:23,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:14:23,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:14:23,534 INFO L87 Difference]: Start difference. First operand 211 states and 305 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:24,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:24,276 INFO L93 Difference]: Finished difference Result 408 states and 590 transitions. [2024-11-19 01:14:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:14:24,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-19 01:14:24,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:24,278 INFO L225 Difference]: With dead ends: 408 [2024-11-19 01:14:24,278 INFO L226 Difference]: Without dead ends: 265 [2024-11-19 01:14:24,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:14:24,280 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 252 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:24,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 459 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:14:24,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-19 01:14:24,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 232. [2024-11-19 01:14:24,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 199 states have (on average 1.3919597989949748) internal successors, (277), 199 states have internal predecessors, (277), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:14:24,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 337 transitions. [2024-11-19 01:14:24,304 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 337 transitions. Word has length 134 [2024-11-19 01:14:24,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:24,305 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 337 transitions. [2024-11-19 01:14:24,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:24,306 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 337 transitions. [2024-11-19 01:14:24,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:14:24,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:24,308 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:24,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:14:24,308 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:24,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:24,308 INFO L85 PathProgramCache]: Analyzing trace with hash -313591714, now seen corresponding path program 1 times [2024-11-19 01:14:24,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:24,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459282716] [2024-11-19 01:14:24,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:24,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:24,791 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:24,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:24,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459282716] [2024-11-19 01:14:24,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459282716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:24,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:24,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:14:24,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280726891] [2024-11-19 01:14:24,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:24,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:14:24,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:24,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:14:24,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:14:24,793 INFO L87 Difference]: Start difference. First operand 232 states and 337 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:25,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:25,150 INFO L93 Difference]: Finished difference Result 441 states and 638 transitions. [2024-11-19 01:14:25,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:14:25,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-19 01:14:25,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:25,153 INFO L225 Difference]: With dead ends: 441 [2024-11-19 01:14:25,153 INFO L226 Difference]: Without dead ends: 277 [2024-11-19 01:14:25,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:14:25,154 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 289 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:25,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 412 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:14:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-19 01:14:25,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 234. [2024-11-19 01:14:25,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 201 states have (on average 1.3930348258706469) internal successors, (280), 201 states have internal predecessors, (280), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 01:14:25,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 340 transitions. [2024-11-19 01:14:25,182 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 340 transitions. Word has length 134 [2024-11-19 01:14:25,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:25,182 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 340 transitions. [2024-11-19 01:14:25,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:25,182 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 340 transitions. [2024-11-19 01:14:25,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:14:25,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:25,195 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:25,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:14:25,196 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:25,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1543030105, now seen corresponding path program 1 times [2024-11-19 01:14:25,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:25,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124550064] [2024-11-19 01:14:25,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:25,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:26,886 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:26,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:26,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124550064] [2024-11-19 01:14:26,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124550064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:26,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:26,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:14:26,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755201188] [2024-11-19 01:14:26,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:26,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:14:26,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:26,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:14:26,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:14:26,888 INFO L87 Difference]: Start difference. First operand 234 states and 340 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:27,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:27,194 INFO L93 Difference]: Finished difference Result 529 states and 767 transitions. [2024-11-19 01:14:27,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:14:27,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-11-19 01:14:27,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:27,197 INFO L225 Difference]: With dead ends: 529 [2024-11-19 01:14:27,197 INFO L226 Difference]: Without dead ends: 363 [2024-11-19 01:14:27,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:14:27,198 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 270 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:27,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 403 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:14:27,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-19 01:14:27,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 355. [2024-11-19 01:14:27,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 306 states have (on average 1.3758169934640523) internal successors, (421), 306 states have internal predecessors, (421), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-19 01:14:27,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 511 transitions. [2024-11-19 01:14:27,232 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 511 transitions. Word has length 134 [2024-11-19 01:14:27,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:27,233 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 511 transitions. [2024-11-19 01:14:27,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:27,233 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 511 transitions. [2024-11-19 01:14:27,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:14:27,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:27,235 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:27,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:14:27,235 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:27,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:27,236 INFO L85 PathProgramCache]: Analyzing trace with hash -841965527, now seen corresponding path program 1 times [2024-11-19 01:14:27,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:27,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708716136] [2024-11-19 01:14:27,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:27,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:29,927 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-19 01:14:29,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:29,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708716136] [2024-11-19 01:14:29,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708716136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:14:29,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324164797] [2024-11-19 01:14:29,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:29,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:14:29,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:14:29,930 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:14:29,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:14:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:30,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 01:14:30,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:14:31,645 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 11 treesize of output 7 [2024-11-19 01:14:31,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:14:31,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:14:31,869 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 01:14:31,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-11-19 01:14:32,021 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:32,022 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:14:32,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324164797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:32,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:14:32,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2024-11-19 01:14:32,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403187273] [2024-11-19 01:14:32,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:32,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:14:32,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:32,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:14:32,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:14:32,025 INFO L87 Difference]: Start difference. First operand 355 states and 511 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:32,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:32,789 INFO L93 Difference]: Finished difference Result 852 states and 1213 transitions. [2024-11-19 01:14:32,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:14:32,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-19 01:14:32,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:32,794 INFO L225 Difference]: With dead ends: 852 [2024-11-19 01:14:32,796 INFO L226 Difference]: Without dead ends: 565 [2024-11-19 01:14:32,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 138 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-11-19 01:14:32,798 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 263 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:32,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 532 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:14:32,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-19 01:14:32,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 389. [2024-11-19 01:14:32,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 340 states have (on average 1.3735294117647059) internal successors, (467), 340 states have internal predecessors, (467), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-19 01:14:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 557 transitions. [2024-11-19 01:14:32,836 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 557 transitions. Word has length 134 [2024-11-19 01:14:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:32,836 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 557 transitions. [2024-11-19 01:14:32,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:32,837 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 557 transitions. [2024-11-19 01:14:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:14:32,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:32,838 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:32,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 01:14:33,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 01:14:33,040 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:33,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:33,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1234992537, now seen corresponding path program 1 times [2024-11-19 01:14:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:33,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988392857] [2024-11-19 01:14:33,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:33,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:33,403 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:33,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:33,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988392857] [2024-11-19 01:14:33,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988392857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:33,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:33,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:14:33,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841272798] [2024-11-19 01:14:33,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:33,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:14:33,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:33,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:14:33,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:14:33,405 INFO L87 Difference]: Start difference. First operand 389 states and 557 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:33,637 INFO L93 Difference]: Finished difference Result 779 states and 1114 transitions. [2024-11-19 01:14:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:14:33,638 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-19 01:14:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:33,640 INFO L225 Difference]: With dead ends: 779 [2024-11-19 01:14:33,641 INFO L226 Difference]: Without dead ends: 462 [2024-11-19 01:14:33,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:14:33,643 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 51 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:33,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 774 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:14:33,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-19 01:14:33,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 401. [2024-11-19 01:14:33,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 352 states have (on average 1.375) internal successors, (484), 352 states have internal predecessors, (484), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-19 01:14:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 574 transitions. [2024-11-19 01:14:33,674 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 574 transitions. Word has length 134 [2024-11-19 01:14:33,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:33,675 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 574 transitions. [2024-11-19 01:14:33,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:33,675 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 574 transitions. [2024-11-19 01:14:33,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 01:14:33,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:33,677 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:33,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 01:14:33,678 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:33,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:33,678 INFO L85 PathProgramCache]: Analyzing trace with hash -701416917, now seen corresponding path program 1 times [2024-11-19 01:14:33,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:33,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559877527] [2024-11-19 01:14:33,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:33,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:36,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:36,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559877527] [2024-11-19 01:14:36,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559877527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:36,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:36,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:14:36,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005285807] [2024-11-19 01:14:36,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:36,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:14:36,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:36,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:14:36,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:14:36,205 INFO L87 Difference]: Start difference. First operand 401 states and 574 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-19 01:14:37,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:37,419 INFO L93 Difference]: Finished difference Result 900 states and 1278 transitions. [2024-11-19 01:14:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:14:37,423 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 134 [2024-11-19 01:14:37,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:37,429 INFO L225 Difference]: With dead ends: 900 [2024-11-19 01:14:37,429 INFO L226 Difference]: Without dead ends: 571 [2024-11-19 01:14:37,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:14:37,431 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 261 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:37,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 856 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 01:14:37,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-19 01:14:37,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 556. [2024-11-19 01:14:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 487 states have (on average 1.3613963039014374) internal successors, (663), 488 states have internal predecessors, (663), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:14:37,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 787 transitions. [2024-11-19 01:14:37,500 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 787 transitions. Word has length 134 [2024-11-19 01:14:37,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:37,502 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 787 transitions. [2024-11-19 01:14:37,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-19 01:14:37,503 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 787 transitions. [2024-11-19 01:14:37,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:14:37,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:37,504 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:37,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:14:37,505 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:37,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:37,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1863517532, now seen corresponding path program 1 times [2024-11-19 01:14:37,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:37,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086204018] [2024-11-19 01:14:37,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:37,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:39,357 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:39,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:39,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086204018] [2024-11-19 01:14:39,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086204018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:39,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:39,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:14:39,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236110001] [2024-11-19 01:14:39,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:39,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:14:39,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:39,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:14:39,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:14:39,359 INFO L87 Difference]: Start difference. First operand 556 states and 787 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:39,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:39,784 INFO L93 Difference]: Finished difference Result 899 states and 1281 transitions. [2024-11-19 01:14:39,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:14:39,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2024-11-19 01:14:39,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:39,790 INFO L225 Difference]: With dead ends: 899 [2024-11-19 01:14:39,790 INFO L226 Difference]: Without dead ends: 706 [2024-11-19 01:14:39,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:14:39,791 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 274 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:39,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 507 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:14:39,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-19 01:14:39,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 566. [2024-11-19 01:14:39,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 497 states have (on average 1.3601609657947686) internal successors, (676), 498 states have internal predecessors, (676), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:14:39,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 800 transitions. [2024-11-19 01:14:39,847 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 800 transitions. Word has length 135 [2024-11-19 01:14:39,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:39,847 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 800 transitions. [2024-11-19 01:14:39,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:39,848 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 800 transitions. [2024-11-19 01:14:39,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:14:39,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:39,849 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:39,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 01:14:39,849 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:39,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:39,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1162452954, now seen corresponding path program 1 times [2024-11-19 01:14:39,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:39,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539414867] [2024-11-19 01:14:39,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:39,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:40,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:40,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539414867] [2024-11-19 01:14:40,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539414867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:40,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:40,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:14:40,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043401559] [2024-11-19 01:14:40,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:40,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:14:40,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:40,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:14:40,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:14:40,430 INFO L87 Difference]: Start difference. First operand 566 states and 800 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:40,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:40,798 INFO L93 Difference]: Finished difference Result 994 states and 1406 transitions. [2024-11-19 01:14:40,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:14:40,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-19 01:14:40,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:40,802 INFO L225 Difference]: With dead ends: 994 [2024-11-19 01:14:40,802 INFO L226 Difference]: Without dead ends: 655 [2024-11-19 01:14:40,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:14:40,804 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 160 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:40,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 657 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:14:40,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-19 01:14:40,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 576. [2024-11-19 01:14:40,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 507 states have (on average 1.3629191321499015) internal successors, (691), 508 states have internal predecessors, (691), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:14:40,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 815 transitions. [2024-11-19 01:14:40,856 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 815 transitions. Word has length 135 [2024-11-19 01:14:40,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:40,857 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 815 transitions. [2024-11-19 01:14:40,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:40,857 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 815 transitions. [2024-11-19 01:14:40,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:14:40,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:40,859 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:40,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 01:14:40,859 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:40,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:40,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1555479964, now seen corresponding path program 1 times [2024-11-19 01:14:40,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:40,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891324610] [2024-11-19 01:14:40,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:40,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:41,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:41,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891324610] [2024-11-19 01:14:41,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891324610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:41,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:41,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:14:41,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121265462] [2024-11-19 01:14:41,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:41,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:14:41,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:41,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:14:41,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:14:41,034 INFO L87 Difference]: Start difference. First operand 576 states and 815 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:41,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:41,083 INFO L93 Difference]: Finished difference Result 917 states and 1303 transitions. [2024-11-19 01:14:41,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:14:41,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-19 01:14:41,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:41,087 INFO L225 Difference]: With dead ends: 917 [2024-11-19 01:14:41,087 INFO L226 Difference]: Without dead ends: 568 [2024-11-19 01:14:41,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:14:41,089 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:41,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 303 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:14:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-19 01:14:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-19 01:14:41,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 499 states have (on average 1.3326653306613228) internal successors, (665), 500 states have internal predecessors, (665), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:14:41,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 789 transitions. [2024-11-19 01:14:41,145 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 789 transitions. Word has length 135 [2024-11-19 01:14:41,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:41,145 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 789 transitions. [2024-11-19 01:14:41,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:41,145 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 789 transitions. [2024-11-19 01:14:41,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:14:41,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:41,147 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:41,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 01:14:41,148 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:41,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:41,148 INFO L85 PathProgramCache]: Analyzing trace with hash 577053854, now seen corresponding path program 1 times [2024-11-19 01:14:41,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:41,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623232374] [2024-11-19 01:14:41,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:41,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:41,504 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:41,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:41,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623232374] [2024-11-19 01:14:41,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623232374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:41,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:41,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:14:41,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799756288] [2024-11-19 01:14:41,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:41,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:14:41,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:41,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:14:41,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:14:41,507 INFO L87 Difference]: Start difference. First operand 568 states and 789 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:41,726 INFO L93 Difference]: Finished difference Result 770 states and 1078 transitions. [2024-11-19 01:14:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:14:41,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-19 01:14:41,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:41,730 INFO L225 Difference]: With dead ends: 770 [2024-11-19 01:14:41,730 INFO L226 Difference]: Without dead ends: 575 [2024-11-19 01:14:41,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:14:41,732 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 8 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:41,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 650 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:14:41,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-19 01:14:41,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 572. [2024-11-19 01:14:41,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 503 states have (on average 1.3320079522862822) internal successors, (670), 504 states have internal predecessors, (670), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:14:41,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 794 transitions. [2024-11-19 01:14:41,785 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 794 transitions. Word has length 135 [2024-11-19 01:14:41,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:41,785 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 794 transitions. [2024-11-19 01:14:41,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:41,786 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 794 transitions. [2024-11-19 01:14:41,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:14:41,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:41,787 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:41,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 01:14:41,788 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:41,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:41,788 INFO L85 PathProgramCache]: Analyzing trace with hash -240594596, now seen corresponding path program 1 times [2024-11-19 01:14:41,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:41,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34106408] [2024-11-19 01:14:41,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:41,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:41,939 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:41,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:41,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34106408] [2024-11-19 01:14:41,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34106408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:41,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:41,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:14:41,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744680955] [2024-11-19 01:14:41,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:41,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:14:41,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:41,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:14:41,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:14:41,943 INFO L87 Difference]: Start difference. First operand 572 states and 794 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:41,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:41,992 INFO L93 Difference]: Finished difference Result 771 states and 1076 transitions. [2024-11-19 01:14:41,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:14:41,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-19 01:14:41,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:41,997 INFO L225 Difference]: With dead ends: 771 [2024-11-19 01:14:41,997 INFO L226 Difference]: Without dead ends: 572 [2024-11-19 01:14:41,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:14:41,999 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:42,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 302 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:14:42,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-19 01:14:42,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2024-11-19 01:14:42,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 503 states have (on average 1.3280318091451293) internal successors, (668), 504 states have internal predecessors, (668), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:14:42,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 792 transitions. [2024-11-19 01:14:42,049 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 792 transitions. Word has length 135 [2024-11-19 01:14:42,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:42,050 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 792 transitions. [2024-11-19 01:14:42,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:14:42,051 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 792 transitions. [2024-11-19 01:14:42,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:14:42,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:42,052 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:42,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 01:14:42,052 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:42,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:42,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2046032930, now seen corresponding path program 1 times [2024-11-19 01:14:42,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:42,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868725102] [2024-11-19 01:14:42,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:42,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:43,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:43,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868725102] [2024-11-19 01:14:43,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868725102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:43,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:43,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:14:43,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971711397] [2024-11-19 01:14:43,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:43,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:14:43,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:43,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:14:43,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:14:43,478 INFO L87 Difference]: Start difference. First operand 572 states and 792 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:44,732 INFO L93 Difference]: Finished difference Result 970 states and 1338 transitions. [2024-11-19 01:14:44,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 01:14:44,735 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2024-11-19 01:14:44,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:44,741 INFO L225 Difference]: With dead ends: 970 [2024-11-19 01:14:44,741 INFO L226 Difference]: Without dead ends: 771 [2024-11-19 01:14:44,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=560, Unknown=0, NotChecked=0, Total=702 [2024-11-19 01:14:44,743 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 291 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:44,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 986 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 01:14:44,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-19 01:14:44,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 589. [2024-11-19 01:14:44,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 520 states have (on average 1.3346153846153845) internal successors, (694), 521 states have internal predecessors, (694), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 01:14:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 818 transitions. [2024-11-19 01:14:44,808 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 818 transitions. Word has length 135 [2024-11-19 01:14:44,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:44,808 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 818 transitions. [2024-11-19 01:14:44,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:44,809 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 818 transitions. [2024-11-19 01:14:44,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:14:44,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:44,810 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:44,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 01:14:44,810 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:44,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:44,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1166344866, now seen corresponding path program 1 times [2024-11-19 01:14:44,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:44,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678915746] [2024-11-19 01:14:44,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:44,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:46,745 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:46,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:46,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678915746] [2024-11-19 01:14:46,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678915746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:46,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:46,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 01:14:46,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134318017] [2024-11-19 01:14:46,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:46,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:14:46,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:46,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:14:46,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:14:46,747 INFO L87 Difference]: Start difference. First operand 589 states and 818 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:48,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:48,271 INFO L93 Difference]: Finished difference Result 1094 states and 1526 transitions. [2024-11-19 01:14:48,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 01:14:48,272 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2024-11-19 01:14:48,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:48,276 INFO L225 Difference]: With dead ends: 1094 [2024-11-19 01:14:48,277 INFO L226 Difference]: Without dead ends: 878 [2024-11-19 01:14:48,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2024-11-19 01:14:48,278 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 322 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:48,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1456 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 01:14:48,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-11-19 01:14:48,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 753. [2024-11-19 01:14:48,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 668 states have (on average 1.345808383233533) internal successors, (899), 669 states have internal predecessors, (899), 77 states have call successors, (77), 7 states have call predecessors, (77), 7 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-19 01:14:48,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1053 transitions. [2024-11-19 01:14:48,359 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1053 transitions. Word has length 135 [2024-11-19 01:14:48,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:48,360 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 1053 transitions. [2024-11-19 01:14:48,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:48,360 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1053 transitions. [2024-11-19 01:14:48,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:14:48,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:48,362 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:48,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 01:14:48,362 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:48,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:48,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1983993316, now seen corresponding path program 1 times [2024-11-19 01:14:48,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:48,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122228850] [2024-11-19 01:14:48,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:48,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:14:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:14:49,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:14:49,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122228850] [2024-11-19 01:14:49,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122228850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:14:49,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:14:49,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:14:49,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429470502] [2024-11-19 01:14:49,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:14:49,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:14:49,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:14:49,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:14:49,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:14:49,604 INFO L87 Difference]: Start difference. First operand 753 states and 1053 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:49,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:14:49,995 INFO L93 Difference]: Finished difference Result 1428 states and 1998 transitions. [2024-11-19 01:14:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:14:49,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2024-11-19 01:14:49,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:14:49,999 INFO L225 Difference]: With dead ends: 1428 [2024-11-19 01:14:49,999 INFO L226 Difference]: Without dead ends: 751 [2024-11-19 01:14:50,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:14:50,002 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 86 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:14:50,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 568 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:14:50,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-19 01:14:50,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 749. [2024-11-19 01:14:50,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 664 states have (on average 1.3328313253012047) internal successors, (885), 665 states have internal predecessors, (885), 77 states have call successors, (77), 7 states have call predecessors, (77), 7 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-19 01:14:50,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1039 transitions. [2024-11-19 01:14:50,071 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1039 transitions. Word has length 135 [2024-11-19 01:14:50,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:14:50,071 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1039 transitions. [2024-11-19 01:14:50,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:14:50,071 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1039 transitions. [2024-11-19 01:14:50,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 01:14:50,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:14:50,073 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:14:50,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 01:14:50,073 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:14:50,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:14:50,073 INFO L85 PathProgramCache]: Analyzing trace with hash -724977522, now seen corresponding path program 1 times [2024-11-19 01:14:50,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:14:50,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571835567] [2024-11-19 01:14:50,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:14:50,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:14:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat