./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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-53.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 760c1d743f5a1ad25ea52dedd60162abae8ccc16a1aae8053ec51960a678eda5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 07:53:14,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 07:53:14,613 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 07:53:14,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 07:53:14,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 07:53:14,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 07:53:14,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 07:53:14,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 07:53:14,671 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 07:53:14,671 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 07:53:14,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 07:53:14,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 07:53:14,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 07:53:14,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 07:53:14,673 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 07:53:14,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 07:53:14,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 07:53:14,679 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 07:53:14,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 07:53:14,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 07:53:14,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 07:53:14,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 07:53:14,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 07:53:14,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 07:53:14,684 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 07:53:14,684 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 07:53:14,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 07:53:14,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 07:53:14,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 07:53:14,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 07:53:14,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 07:53:14,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 07:53:14,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 07:53:14,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 07:53:14,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 07:53:14,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 07:53:14,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 07:53:14,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 07:53:14,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 07:53:14,690 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 07:53:14,692 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 07:53:14,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 07:53:14,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 760c1d743f5a1ad25ea52dedd60162abae8ccc16a1aae8053ec51960a678eda5 [2024-11-12 07:53:14,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 07:53:15,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 07:53:15,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 07:53:15,010 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 07:53:15,010 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 07:53:15,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i [2024-11-12 07:53:16,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 07:53:16,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 07:53:16,668 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i [2024-11-12 07:53:16,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5675e71e/052f289565424f56acbccab23fd24f97/FLAG7998b876c [2024-11-12 07:53:17,052 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5675e71e/052f289565424f56acbccab23fd24f97 [2024-11-12 07:53:17,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 07:53:17,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 07:53:17,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 07:53:17,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 07:53:17,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 07:53:17,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382ed928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17, skipping insertion in model container [2024-11-12 07:53:17,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 07:53:17,202 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-53.i[917,930] [2024-11-12 07:53:17,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 07:53:17,253 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 07:53:17,262 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-53.i[917,930] [2024-11-12 07:53:17,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 07:53:17,307 INFO L204 MainTranslator]: Completed translation [2024-11-12 07:53:17,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17 WrapperNode [2024-11-12 07:53:17,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 07:53:17,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 07:53:17,310 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 07:53:17,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 07:53:17,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,397 INFO L138 Inliner]: procedures = 30, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 502 [2024-11-12 07:53:17,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 07:53:17,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 07:53:17,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 07:53:17,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 07:53:17,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,431 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-12 07:53:17,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 07:53:17,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 07:53:17,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 07:53:17,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 07:53:17,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (1/1) ... [2024-11-12 07:53:17,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 07:53:17,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:53:17,523 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) [2024-11-12 07:53:17,530 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 [2024-11-12 07:53:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 07:53:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-12 07:53:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-12 07:53:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-12 07:53:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 07:53:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-12 07:53:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 07:53:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 07:53:17,566 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 07:53:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 07:53:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 07:53:17,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 07:53:17,670 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 07:53:17,671 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 07:53:18,141 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-12 07:53:18,142 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 07:53:18,173 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 07:53:18,173 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 07:53:18,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:53:18 BoogieIcfgContainer [2024-11-12 07:53:18,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 07:53:18,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 07:53:18,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 07:53:18,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 07:53:18,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:53:17" (1/3) ... [2024-11-12 07:53:18,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3e00e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:53:18, skipping insertion in model container [2024-11-12 07:53:18,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:53:17" (2/3) ... [2024-11-12 07:53:18,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3e00e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:53:18, skipping insertion in model container [2024-11-12 07:53:18,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:53:18" (3/3) ... [2024-11-12 07:53:18,189 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-53.i [2024-11-12 07:53:18,220 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 07:53:18,220 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 07:53:18,322 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 07:53:18,330 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;@707c117, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 07:53:18,330 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 07:53:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-12 07:53:18,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-12 07:53:18,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:18,414 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:18,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:18,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:18,428 INFO L85 PathProgramCache]: Analyzing trace with hash 528541446, now seen corresponding path program 1 times [2024-11-12 07:53:18,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:18,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164327275] [2024-11-12 07:53:18,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:18,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:18,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:19,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:19,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:19,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:19,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:19,050 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:19,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:19,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164327275] [2024-11-12 07:53:19,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164327275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:19,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:19,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 07:53:19,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30213812] [2024-11-12 07:53:19,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:19,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 07:53:19,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:19,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 07:53:19,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 07:53:19,115 INFO L87 Difference]: Start difference. First operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-12 07:53:19,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:53:19,177 INFO L93 Difference]: Finished difference Result 217 states and 340 transitions. [2024-11-12 07:53:19,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 07:53:19,180 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-11-12 07:53:19,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:53:19,198 INFO L225 Difference]: With dead ends: 217 [2024-11-12 07:53:19,202 INFO L226 Difference]: Without dead ends: 108 [2024-11-12 07:53:19,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 07:53:19,228 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:53:19,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:53:19,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-12 07:53:19,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-12 07:53:19,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 88 states have internal predecessors, (119), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-12 07:53:19,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2024-11-12 07:53:19,363 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 140 [2024-11-12 07:53:19,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:53:19,365 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2024-11-12 07:53:19,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-12 07:53:19,365 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2024-11-12 07:53:19,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-12 07:53:19,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:19,377 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:19,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 07:53:19,378 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:19,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:19,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1839681894, now seen corresponding path program 1 times [2024-11-12 07:53:19,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:19,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603008015] [2024-11-12 07:53:19,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:19,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:20,605 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:20,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:20,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603008015] [2024-11-12 07:53:20,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603008015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:20,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:20,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 07:53:20,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666333457] [2024-11-12 07:53:20,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:20,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 07:53:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 07:53:20,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 07:53:20,611 INFO L87 Difference]: Start difference. First operand 108 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:53:20,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:53:20,646 INFO L93 Difference]: Finished difference Result 213 states and 307 transitions. [2024-11-12 07:53:20,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 07:53:20,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-11-12 07:53:20,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:53:20,648 INFO L225 Difference]: With dead ends: 213 [2024-11-12 07:53:20,648 INFO L226 Difference]: Without dead ends: 108 [2024-11-12 07:53:20,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 07:53:20,650 INFO L435 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 [2024-11-12 07:53:20,650 INFO L436 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] [2024-11-12 07:53:20,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-12 07:53:20,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-12 07:53:20,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-12 07:53:20,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-11-12 07:53:20,665 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 140 [2024-11-12 07:53:20,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:53:20,667 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-11-12 07:53:20,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:53:20,667 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-11-12 07:53:20,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-12 07:53:20,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:20,670 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:20,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 07:53:20,670 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:20,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:20,671 INFO L85 PathProgramCache]: Analyzing trace with hash 818613540, now seen corresponding path program 1 times [2024-11-12 07:53:20,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:20,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489129267] [2024-11-12 07:53:20,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:20,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:24,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:24,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489129267] [2024-11-12 07:53:24,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489129267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:24,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:24,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 07:53:24,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249082639] [2024-11-12 07:53:24,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:24,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 07:53:24,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:24,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 07:53:24,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:53:24,841 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-12 07:53:25,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:53:25,793 INFO L93 Difference]: Finished difference Result 266 states and 381 transitions. [2024-11-12 07:53:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:53:25,794 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-11-12 07:53:25,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:53:25,796 INFO L225 Difference]: With dead ends: 266 [2024-11-12 07:53:25,796 INFO L226 Difference]: Without dead ends: 161 [2024-11-12 07:53:25,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-12 07:53:25,798 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 340 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 07:53:25,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 508 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 07:53:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-12 07:53:25,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 126. [2024-11-12 07:53:25,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 106 states have (on average 1.3679245283018868) internal successors, (145), 106 states have internal predecessors, (145), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-12 07:53:25,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 181 transitions. [2024-11-12 07:53:25,811 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 181 transitions. Word has length 140 [2024-11-12 07:53:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:53:25,812 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 181 transitions. [2024-11-12 07:53:25,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-12 07:53:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 181 transitions. [2024-11-12 07:53:25,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-12 07:53:25,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:25,814 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:25,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 07:53:25,814 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:25,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:25,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1519678118, now seen corresponding path program 1 times [2024-11-12 07:53:25,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:25,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569668865] [2024-11-12 07:53:25,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:25,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:31,503 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:31,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:31,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569668865] [2024-11-12 07:53:31,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569668865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:31,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:31,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-12 07:53:31,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048826388] [2024-11-12 07:53:31,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:31,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 07:53:31,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:31,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 07:53:31,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:53:31,508 INFO L87 Difference]: Start difference. First operand 126 states and 181 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-12 07:53:33,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:53:33,199 INFO L93 Difference]: Finished difference Result 356 states and 511 transitions. [2024-11-12 07:53:33,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:53:33,199 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 140 [2024-11-12 07:53:33,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:53:33,201 INFO L225 Difference]: With dead ends: 356 [2024-11-12 07:53:33,201 INFO L226 Difference]: Without dead ends: 233 [2024-11-12 07:53:33,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-12 07:53:33,207 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 313 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:53:33,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 502 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-12 07:53:33,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-12 07:53:33,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 227. [2024-11-12 07:53:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 188 states have (on average 1.3563829787234043) internal successors, (255), 188 states have internal predecessors, (255), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-12 07:53:33,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 327 transitions. [2024-11-12 07:53:33,260 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 327 transitions. Word has length 140 [2024-11-12 07:53:33,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:53:33,261 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 327 transitions. [2024-11-12 07:53:33,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-12 07:53:33,261 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 327 transitions. [2024-11-12 07:53:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-12 07:53:33,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:33,262 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:33,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 07:53:33,262 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:33,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:33,263 INFO L85 PathProgramCache]: Analyzing trace with hash 2051277675, now seen corresponding path program 1 times [2024-11-12 07:53:33,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:33,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178963811] [2024-11-12 07:53:33,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:33,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:36,825 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:36,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:36,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178963811] [2024-11-12 07:53:36,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178963811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:36,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:36,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 07:53:36,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566921737] [2024-11-12 07:53:36,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:36,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 07:53:36,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:36,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 07:53:36,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:53:36,835 INFO L87 Difference]: Start difference. First operand 227 states and 327 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-12 07:53:37,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:53:37,998 INFO L93 Difference]: Finished difference Result 352 states and 508 transitions. [2024-11-12 07:53:37,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:53:37,999 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 142 [2024-11-12 07:53:37,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:53:38,001 INFO L225 Difference]: With dead ends: 352 [2024-11-12 07:53:38,002 INFO L226 Difference]: Without dead ends: 229 [2024-11-12 07:53:38,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-12 07:53:38,004 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 276 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 07:53:38,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 336 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 07:53:38,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-12 07:53:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 211. [2024-11-12 07:53:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 172 states have (on average 1.3372093023255813) internal successors, (230), 172 states have internal predecessors, (230), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-12 07:53:38,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 302 transitions. [2024-11-12 07:53:38,049 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 302 transitions. Word has length 142 [2024-11-12 07:53:38,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:53:38,050 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 302 transitions. [2024-11-12 07:53:38,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-12 07:53:38,050 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 302 transitions. [2024-11-12 07:53:38,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-12 07:53:38,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:38,053 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:38,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 07:53:38,053 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:38,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:38,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1542625043, now seen corresponding path program 1 times [2024-11-12 07:53:38,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:38,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967572031] [2024-11-12 07:53:38,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:38,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:42,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:42,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967572031] [2024-11-12 07:53:42,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967572031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:42,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:42,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-12 07:53:42,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339616719] [2024-11-12 07:53:42,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:42,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-12 07:53:42,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:42,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 07:53:42,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-12 07:53:42,428 INFO L87 Difference]: Start difference. First operand 211 states and 302 transitions. Second operand has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-12 07:53:44,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:53:44,499 INFO L93 Difference]: Finished difference Result 388 states and 549 transitions. [2024-11-12 07:53:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 07:53:44,504 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 142 [2024-11-12 07:53:44,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:53:44,505 INFO L225 Difference]: With dead ends: 388 [2024-11-12 07:53:44,505 INFO L226 Difference]: Without dead ends: 281 [2024-11-12 07:53:44,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-11-12 07:53:44,506 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 242 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:53:44,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 709 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-12 07:53:44,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-12 07:53:44,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 276. [2024-11-12 07:53:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 231 states have (on average 1.341991341991342) internal successors, (310), 233 states have internal predecessors, (310), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-12 07:53:44,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 390 transitions. [2024-11-12 07:53:44,592 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 390 transitions. Word has length 142 [2024-11-12 07:53:44,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:53:44,593 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 390 transitions. [2024-11-12 07:53:44,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-12 07:53:44,593 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 390 transitions. [2024-11-12 07:53:44,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-12 07:53:44,598 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:44,598 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:44,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 07:53:44,599 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:44,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:44,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1602478714, now seen corresponding path program 1 times [2024-11-12 07:53:44,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:44,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301348653] [2024-11-12 07:53:44,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:44,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:44,901 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:44,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:44,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301348653] [2024-11-12 07:53:44,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301348653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:44,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:44,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 07:53:44,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740682409] [2024-11-12 07:53:44,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:44,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 07:53:44,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:44,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 07:53:44,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 07:53:44,902 INFO L87 Difference]: Start difference. First operand 276 states and 390 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:53:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:53:44,962 INFO L93 Difference]: Finished difference Result 540 states and 767 transitions. [2024-11-12 07:53:44,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 07:53:44,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-12 07:53:44,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:53:44,969 INFO L225 Difference]: With dead ends: 540 [2024-11-12 07:53:44,970 INFO L226 Difference]: Without dead ends: 276 [2024-11-12 07:53:44,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 07:53:44,971 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 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 [2024-11-12 07:53:44,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:53:44,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-12 07:53:45,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-11-12 07:53:45,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 231 states have (on average 1.329004329004329) internal successors, (307), 233 states have internal predecessors, (307), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-12 07:53:45,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 387 transitions. [2024-11-12 07:53:45,011 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 387 transitions. Word has length 145 [2024-11-12 07:53:45,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:53:45,011 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 387 transitions. [2024-11-12 07:53:45,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:53:45,012 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 387 transitions. [2024-11-12 07:53:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-12 07:53:45,012 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:45,012 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:45,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 07:53:45,013 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:45,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:45,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1015672700, now seen corresponding path program 1 times [2024-11-12 07:53:45,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:45,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657748138] [2024-11-12 07:53:45,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:45,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:46,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:46,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657748138] [2024-11-12 07:53:46,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657748138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:46,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:46,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-12 07:53:46,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345076532] [2024-11-12 07:53:46,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:47,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 07:53:47,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:47,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 07:53:47,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-12 07:53:47,001 INFO L87 Difference]: Start difference. First operand 276 states and 387 transitions. Second operand has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 14 states have internal predecessors, (58), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-12 07:53:48,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:53:48,048 INFO L93 Difference]: Finished difference Result 658 states and 919 transitions. [2024-11-12 07:53:48,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 07:53:48,049 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 14 states have internal predecessors, (58), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 145 [2024-11-12 07:53:48,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:53:48,053 INFO L225 Difference]: With dead ends: 658 [2024-11-12 07:53:48,053 INFO L226 Difference]: Without dead ends: 394 [2024-11-12 07:53:48,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-12 07:53:48,055 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 302 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 07:53:48,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 607 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 07:53:48,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-12 07:53:48,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 311. [2024-11-12 07:53:48,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 266 states have (on average 1.3157894736842106) internal successors, (350), 268 states have internal predecessors, (350), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-12 07:53:48,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 430 transitions. [2024-11-12 07:53:48,145 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 430 transitions. Word has length 145 [2024-11-12 07:53:48,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:53:48,147 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 430 transitions. [2024-11-12 07:53:48,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 14 states have internal predecessors, (58), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-12 07:53:48,148 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 430 transitions. [2024-11-12 07:53:48,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-12 07:53:48,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:48,149 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:48,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 07:53:48,149 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:48,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:48,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2143372836, now seen corresponding path program 1 times [2024-11-12 07:53:48,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:48,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717583201] [2024-11-12 07:53:48,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:48,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:51,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:51,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717583201] [2024-11-12 07:53:51,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717583201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:51,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:51,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-12 07:53:51,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378047303] [2024-11-12 07:53:51,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:51,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-12 07:53:51,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:51,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-12 07:53:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-12 07:53:51,864 INFO L87 Difference]: Start difference. First operand 311 states and 430 transitions. Second operand has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-12 07:53:54,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:53:54,237 INFO L93 Difference]: Finished difference Result 767 states and 1065 transitions. [2024-11-12 07:53:54,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 07:53:54,238 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-11-12 07:53:54,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:53:54,241 INFO L225 Difference]: With dead ends: 767 [2024-11-12 07:53:54,241 INFO L226 Difference]: Without dead ends: 468 [2024-11-12 07:53:54,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2024-11-12 07:53:54,247 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 215 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-12 07:53:54,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 993 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-12 07:53:54,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-12 07:53:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 446. [2024-11-12 07:53:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 382 states have (on average 1.324607329842932) internal successors, (506), 384 states have internal predecessors, (506), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:53:54,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 622 transitions. [2024-11-12 07:53:54,369 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 622 transitions. Word has length 146 [2024-11-12 07:53:54,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:53:54,369 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 622 transitions. [2024-11-12 07:53:54,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-12 07:53:54,370 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 622 transitions. [2024-11-12 07:53:54,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-12 07:53:54,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:54,375 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:54,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 07:53:54,376 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:54,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1450529882, now seen corresponding path program 1 times [2024-11-12 07:53:54,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:54,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152184058] [2024-11-12 07:53:54,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:54,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:55,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:55,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152184058] [2024-11-12 07:53:55,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152184058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:55,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:55,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:53:55,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342101590] [2024-11-12 07:53:55,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:55,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:53:55,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:55,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:53:55,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:53:55,121 INFO L87 Difference]: Start difference. First operand 446 states and 622 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:53:55,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:53:55,914 INFO L93 Difference]: Finished difference Result 1015 states and 1418 transitions. [2024-11-12 07:53:55,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:53:55,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2024-11-12 07:53:55,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:53:55,917 INFO L225 Difference]: With dead ends: 1015 [2024-11-12 07:53:55,917 INFO L226 Difference]: Without dead ends: 572 [2024-11-12 07:53:55,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:53:55,919 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 51 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-12 07:53:55,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 585 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-12 07:53:55,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-12 07:53:55,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 477. [2024-11-12 07:53:55,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 413 states have (on average 1.3220338983050848) internal successors, (546), 415 states have internal predecessors, (546), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:53:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 662 transitions. [2024-11-12 07:53:55,978 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 662 transitions. Word has length 146 [2024-11-12 07:53:55,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:53:55,978 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 662 transitions. [2024-11-12 07:53:55,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:53:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 662 transitions. [2024-11-12 07:53:55,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-12 07:53:55,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:53:55,979 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:53:55,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 07:53:55,980 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:53:55,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:53:55,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1325724386, now seen corresponding path program 1 times [2024-11-12 07:53:55,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:53:55,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250135464] [2024-11-12 07:53:55,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:53:55,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:53:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:53:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:53:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:53:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:53:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:53:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:53:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:53:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:53:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:53:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:53:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:53:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:53:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:53:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:53:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:53:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:53:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:53:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:53:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:53:59,959 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:53:59,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:53:59,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250135464] [2024-11-12 07:53:59,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250135464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:53:59,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:53:59,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-12 07:53:59,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068915169] [2024-11-12 07:53:59,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:53:59,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-12 07:53:59,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:53:59,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-12 07:53:59,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-12 07:53:59,965 INFO L87 Difference]: Start difference. First operand 477 states and 662 transitions. Second operand has 17 states, 13 states have (on average 4.538461538461538) internal successors, (59), 17 states have internal predecessors, (59), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-12 07:54:01,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:01,984 INFO L93 Difference]: Finished difference Result 1073 states and 1490 transitions. [2024-11-12 07:54:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 07:54:01,988 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.538461538461538) internal successors, (59), 17 states have internal predecessors, (59), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) Word has length 146 [2024-11-12 07:54:01,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:01,991 INFO L225 Difference]: With dead ends: 1073 [2024-11-12 07:54:01,991 INFO L226 Difference]: Without dead ends: 599 [2024-11-12 07:54:01,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2024-11-12 07:54:01,997 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 282 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:01,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 827 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-12 07:54:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-12 07:54:02,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 504. [2024-11-12 07:54:02,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 440 states have (on average 1.3136363636363637) internal successors, (578), 442 states have internal predecessors, (578), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:54:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 694 transitions. [2024-11-12 07:54:02,126 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 694 transitions. Word has length 146 [2024-11-12 07:54:02,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:02,126 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 694 transitions. [2024-11-12 07:54:02,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.538461538461538) internal successors, (59), 17 states have internal predecessors, (59), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-12 07:54:02,126 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 694 transitions. [2024-11-12 07:54:02,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-12 07:54:02,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:02,127 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:02,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 07:54:02,128 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:02,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:02,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2026788964, now seen corresponding path program 1 times [2024-11-12 07:54:02,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:02,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481525296] [2024-11-12 07:54:02,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:02,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:54:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:54:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:54:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:54:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:54:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:54:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:54:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:54:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:54:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:54:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:54:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:54:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:54:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:54:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:54:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:54:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:54:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:54:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:04,697 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:54:04,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:54:04,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481525296] [2024-11-12 07:54:04,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481525296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:54:04,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:54:04,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-12 07:54:04,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454032621] [2024-11-12 07:54:04,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:54:04,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 07:54:04,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:54:04,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 07:54:04,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-12 07:54:04,699 INFO L87 Difference]: Start difference. First operand 504 states and 694 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-12 07:54:06,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:06,241 INFO L93 Difference]: Finished difference Result 1019 states and 1401 transitions. [2024-11-12 07:54:06,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 07:54:06,241 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2024-11-12 07:54:06,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:06,244 INFO L225 Difference]: With dead ends: 1019 [2024-11-12 07:54:06,244 INFO L226 Difference]: Without dead ends: 518 [2024-11-12 07:54:06,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-11-12 07:54:06,245 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 151 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:06,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1384 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-12 07:54:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-12 07:54:06,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 503. [2024-11-12 07:54:06,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 439 states have (on average 1.3120728929384966) internal successors, (576), 441 states have internal predecessors, (576), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:54:06,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 692 transitions. [2024-11-12 07:54:06,301 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 692 transitions. Word has length 146 [2024-11-12 07:54:06,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:06,301 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 692 transitions. [2024-11-12 07:54:06,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-12 07:54:06,302 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 692 transitions. [2024-11-12 07:54:06,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-12 07:54:06,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:06,303 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:06,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 07:54:06,303 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:06,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:06,304 INFO L85 PathProgramCache]: Analyzing trace with hash -390002472, now seen corresponding path program 1 times [2024-11-12 07:54:06,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:06,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456795822] [2024-11-12 07:54:06,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:06,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:54:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:54:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:54:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:54:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:54:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:54:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:54:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:54:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:54:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:54:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:54:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:54:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:54:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:54:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:54:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:54:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:54:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:54:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,455 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:54:06,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:54:06,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456795822] [2024-11-12 07:54:06,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456795822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:54:06,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:54:06,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:54:06,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299456773] [2024-11-12 07:54:06,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:54:06,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:54:06,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:54:06,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:54:06,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:54:06,457 INFO L87 Difference]: Start difference. First operand 503 states and 692 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:54:06,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:06,532 INFO L93 Difference]: Finished difference Result 1023 states and 1406 transitions. [2024-11-12 07:54:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:54:06,533 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-12 07:54:06,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:06,536 INFO L225 Difference]: With dead ends: 1023 [2024-11-12 07:54:06,536 INFO L226 Difference]: Without dead ends: 523 [2024-11-12 07:54:06,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:54:06,537 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:06,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 734 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:54:06,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-12 07:54:06,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 514. [2024-11-12 07:54:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 450 states have (on average 1.3044444444444445) internal successors, (587), 452 states have internal predecessors, (587), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:54:06,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 703 transitions. [2024-11-12 07:54:06,594 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 703 transitions. Word has length 147 [2024-11-12 07:54:06,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:06,594 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 703 transitions. [2024-11-12 07:54:06,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:54:06,594 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 703 transitions. [2024-11-12 07:54:06,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-12 07:54:06,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:06,596 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:06,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 07:54:06,596 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:06,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:06,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1451337970, now seen corresponding path program 1 times [2024-11-12 07:54:06,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:06,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414984100] [2024-11-12 07:54:06,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:06,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:54:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:54:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:54:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:54:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:54:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:54:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:54:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:54:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:54:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:54:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:54:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:54:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:54:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:54:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:54:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:54:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:54:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:54:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:54:06,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:54:06,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414984100] [2024-11-12 07:54:06,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414984100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:54:06,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:54:06,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:54:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618893889] [2024-11-12 07:54:06,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:54:06,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:54:06,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:54:06,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:54:06,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:54:06,740 INFO L87 Difference]: Start difference. First operand 514 states and 703 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:54:06,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:06,807 INFO L93 Difference]: Finished difference Result 1040 states and 1423 transitions. [2024-11-12 07:54:06,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:54:06,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-12 07:54:06,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:06,810 INFO L225 Difference]: With dead ends: 1040 [2024-11-12 07:54:06,810 INFO L226 Difference]: Without dead ends: 529 [2024-11-12 07:54:06,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:54:06,812 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:06,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:54:06,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-12 07:54:06,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2024-11-12 07:54:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 465 states have (on average 1.2946236559139785) internal successors, (602), 467 states have internal predecessors, (602), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:54:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 718 transitions. [2024-11-12 07:54:06,866 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 718 transitions. Word has length 147 [2024-11-12 07:54:06,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:06,867 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 718 transitions. [2024-11-12 07:54:06,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:54:06,867 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 718 transitions. [2024-11-12 07:54:06,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-12 07:54:06,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:06,868 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:06,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 07:54:06,869 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:06,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:06,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1207686357, now seen corresponding path program 1 times [2024-11-12 07:54:06,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:06,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200784884] [2024-11-12 07:54:06,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:06,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:54:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:54:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:54:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:54:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:54:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:54:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:54:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:54:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:54:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:54:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:54:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:54:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:54:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:54:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:54:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:54:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:54:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:54:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:07,375 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:54:07,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:54:07,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200784884] [2024-11-12 07:54:07,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200784884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:54:07,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:54:07,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 07:54:07,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900731598] [2024-11-12 07:54:07,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:54:07,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 07:54:07,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:54:07,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 07:54:07,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-12 07:54:07,377 INFO L87 Difference]: Start difference. First operand 529 states and 718 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:54:08,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:08,091 INFO L93 Difference]: Finished difference Result 1014 states and 1375 transitions. [2024-11-12 07:54:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 07:54:08,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-12 07:54:08,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:08,095 INFO L225 Difference]: With dead ends: 1014 [2024-11-12 07:54:08,095 INFO L226 Difference]: Without dead ends: 645 [2024-11-12 07:54:08,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:54:08,096 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 54 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:08,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1023 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-12 07:54:08,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-12 07:54:08,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 529. [2024-11-12 07:54:08,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 465 states have (on average 1.2946236559139785) internal successors, (602), 467 states have internal predecessors, (602), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:54:08,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 718 transitions. [2024-11-12 07:54:08,154 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 718 transitions. Word has length 148 [2024-11-12 07:54:08,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:08,154 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 718 transitions. [2024-11-12 07:54:08,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:54:08,155 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 718 transitions. [2024-11-12 07:54:08,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-12 07:54:08,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:08,156 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:08,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 07:54:08,156 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:08,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:08,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1324270229, now seen corresponding path program 1 times [2024-11-12 07:54:08,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:08,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340398978] [2024-11-12 07:54:08,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:08,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:54:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:54:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:54:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:54:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:54:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:54:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:54:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:54:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:54:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:54:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:54:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:54:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:54:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:54:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:54:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:54:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:54:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:54:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:54:11,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:54:11,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340398978] [2024-11-12 07:54:11,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340398978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:54:11,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:54:11,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-12 07:54:11,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553596141] [2024-11-12 07:54:11,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:54:11,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-12 07:54:11,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:54:11,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-12 07:54:11,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-12 07:54:11,852 INFO L87 Difference]: Start difference. First operand 529 states and 718 transitions. Second operand has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-12 07:54:19,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:19,377 INFO L93 Difference]: Finished difference Result 867 states and 1165 transitions. [2024-11-12 07:54:19,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 07:54:19,377 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 148 [2024-11-12 07:54:19,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:19,380 INFO L225 Difference]: With dead ends: 867 [2024-11-12 07:54:19,381 INFO L226 Difference]: Without dead ends: 632 [2024-11-12 07:54:19,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2024-11-12 07:54:19,384 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 427 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:19,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1399 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-12 07:54:19,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-12 07:54:19,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 529. [2024-11-12 07:54:19,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 465 states have (on average 1.2946236559139785) internal successors, (602), 467 states have internal predecessors, (602), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:54:19,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 718 transitions. [2024-11-12 07:54:19,444 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 718 transitions. Word has length 148 [2024-11-12 07:54:19,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:19,445 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 718 transitions. [2024-11-12 07:54:19,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-12 07:54:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 718 transitions. [2024-11-12 07:54:19,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-12 07:54:19,446 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:19,446 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:19,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 07:54:19,447 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:19,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:19,447 INFO L85 PathProgramCache]: Analyzing trace with hash 59652717, now seen corresponding path program 1 times [2024-11-12 07:54:19,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:19,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213547601] [2024-11-12 07:54:19,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:19,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:54:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:54:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:54:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:54:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:54:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:54:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:54:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:54:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:54:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:54:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:54:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:54:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:54:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:54:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:54:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:54:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:54:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:54:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:54:21,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:54:21,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213547601] [2024-11-12 07:54:21,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213547601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:54:21,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:54:21,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-12 07:54:21,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776969582] [2024-11-12 07:54:21,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:54:21,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-12 07:54:21,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:54:21,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-12 07:54:21,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-12 07:54:21,678 INFO L87 Difference]: Start difference. First operand 529 states and 718 transitions. Second operand has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-12 07:54:23,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:23,415 INFO L93 Difference]: Finished difference Result 949 states and 1284 transitions. [2024-11-12 07:54:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 07:54:23,416 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-12 07:54:23,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:23,418 INFO L225 Difference]: With dead ends: 949 [2024-11-12 07:54:23,418 INFO L226 Difference]: Without dead ends: 580 [2024-11-12 07:54:23,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2024-11-12 07:54:23,420 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 259 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:23,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 893 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-12 07:54:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-12 07:54:23,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 530. [2024-11-12 07:54:23,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 466 states have (on average 1.296137339055794) internal successors, (604), 468 states have internal predecessors, (604), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:54:23,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 720 transitions. [2024-11-12 07:54:23,509 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 720 transitions. Word has length 148 [2024-11-12 07:54:23,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:23,509 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 720 transitions. [2024-11-12 07:54:23,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-12 07:54:23,509 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 720 transitions. [2024-11-12 07:54:23,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-12 07:54:23,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:23,510 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:23,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 07:54:23,511 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:23,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:23,511 INFO L85 PathProgramCache]: Analyzing trace with hash 760717295, now seen corresponding path program 1 times [2024-11-12 07:54:23,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:23,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529982698] [2024-11-12 07:54:23,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:23,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:54:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:54:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:54:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:54:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:54:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:54:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:54:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:54:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:54:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:54:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:54:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:54:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:54:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:54:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:54:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:54:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:54:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:54:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:54:25,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:54:25,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529982698] [2024-11-12 07:54:25,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529982698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:54:25,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:54:25,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-12 07:54:25,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178220767] [2024-11-12 07:54:25,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:54:25,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-12 07:54:25,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:54:25,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 07:54:25,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-12 07:54:25,817 INFO L87 Difference]: Start difference. First operand 530 states and 720 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-12 07:54:27,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:27,213 INFO L93 Difference]: Finished difference Result 950 states and 1285 transitions. [2024-11-12 07:54:27,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 07:54:27,217 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-12 07:54:27,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:27,220 INFO L225 Difference]: With dead ends: 950 [2024-11-12 07:54:27,220 INFO L226 Difference]: Without dead ends: 580 [2024-11-12 07:54:27,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2024-11-12 07:54:27,226 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 153 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:27,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 852 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-12 07:54:27,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-12 07:54:27,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 537. [2024-11-12 07:54:27,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 473 states have (on average 1.2938689217758985) internal successors, (612), 475 states have internal predecessors, (612), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:54:27,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 728 transitions. [2024-11-12 07:54:27,357 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 728 transitions. Word has length 148 [2024-11-12 07:54:27,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:27,357 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 728 transitions. [2024-11-12 07:54:27,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-12 07:54:27,357 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 728 transitions. [2024-11-12 07:54:27,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-12 07:54:27,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:27,358 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:27,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 07:54:27,358 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:27,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:27,359 INFO L85 PathProgramCache]: Analyzing trace with hash 278507435, now seen corresponding path program 1 times [2024-11-12 07:54:27,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:27,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460465425] [2024-11-12 07:54:27,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:27,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:54:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:54:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:54:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:54:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:54:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:54:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:54:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:54:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:54:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:54:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:54:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:54:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:54:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:54:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:54:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:54:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:54:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:54:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:28,078 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:54:28,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:54:28,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460465425] [2024-11-12 07:54:28,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460465425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:54:28,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:54:28,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 07:54:28,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182259681] [2024-11-12 07:54:28,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:54:28,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 07:54:28,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:54:28,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 07:54:28,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:54:28,080 INFO L87 Difference]: Start difference. First operand 537 states and 728 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:54:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:28,957 INFO L93 Difference]: Finished difference Result 1236 states and 1668 transitions. [2024-11-12 07:54:28,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:54:28,958 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-12 07:54:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:28,961 INFO L225 Difference]: With dead ends: 1236 [2024-11-12 07:54:28,961 INFO L226 Difference]: Without dead ends: 702 [2024-11-12 07:54:28,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-12 07:54:28,966 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 154 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:28,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 509 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 07:54:28,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-12 07:54:29,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 575. [2024-11-12 07:54:29,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 511 states have (on average 1.2778864970645794) internal successors, (653), 513 states have internal predecessors, (653), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-12 07:54:29,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 769 transitions. [2024-11-12 07:54:29,042 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 769 transitions. Word has length 148 [2024-11-12 07:54:29,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:29,042 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 769 transitions. [2024-11-12 07:54:29,042 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:54:29,043 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 769 transitions. [2024-11-12 07:54:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-12 07:54:29,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:29,044 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:29,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 07:54:29,044 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:29,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:29,045 INFO L85 PathProgramCache]: Analyzing trace with hash 979572013, now seen corresponding path program 1 times [2024-11-12 07:54:29,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:29,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463689133] [2024-11-12 07:54:29,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:29,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:54:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:54:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:54:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:54:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:54:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:54:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:54:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:54:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:54:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:54:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:54:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:54:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:54:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:54:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:54:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:54:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:54:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:54:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:54:34,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:54:34,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463689133] [2024-11-12 07:54:34,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463689133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:54:34,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:54:34,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-12 07:54:34,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281283455] [2024-11-12 07:54:34,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:54:34,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-12 07:54:34,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:54:34,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-12 07:54:34,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2024-11-12 07:54:34,708 INFO L87 Difference]: Start difference. First operand 575 states and 769 transitions. Second operand has 23 states, 19 states have (on average 3.210526315789474) internal successors, (61), 23 states have internal predecessors, (61), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-12 07:54:41,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 07:54:45,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:45,010 INFO L93 Difference]: Finished difference Result 1089 states and 1446 transitions. [2024-11-12 07:54:45,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-12 07:54:45,011 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 3.210526315789474) internal successors, (61), 23 states have internal predecessors, (61), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) Word has length 148 [2024-11-12 07:54:45,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:45,015 INFO L225 Difference]: With dead ends: 1089 [2024-11-12 07:54:45,015 INFO L226 Difference]: Without dead ends: 674 [2024-11-12 07:54:45,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=358, Invalid=1534, Unknown=0, NotChecked=0, Total=1892 [2024-11-12 07:54:45,017 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 443 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:45,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 1352 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1869 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2024-11-12 07:54:45,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-12 07:54:45,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 624. [2024-11-12 07:54:45,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 557 states have (on average 1.272890484739677) internal successors, (709), 560 states have internal predecessors, (709), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-12 07:54:45,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 829 transitions. [2024-11-12 07:54:45,082 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 829 transitions. Word has length 148 [2024-11-12 07:54:45,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:45,082 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 829 transitions. [2024-11-12 07:54:45,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 3.210526315789474) internal successors, (61), 23 states have internal predecessors, (61), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-12 07:54:45,082 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 829 transitions. [2024-11-12 07:54:45,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-12 07:54:45,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:45,083 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:45,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 07:54:45,084 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:45,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:45,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2068856573, now seen corresponding path program 1 times [2024-11-12 07:54:45,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:45,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685824769] [2024-11-12 07:54:45,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:45,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:54:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:54:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:54:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:54:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:54:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:54:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:54:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:54:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 07:54:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:54:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:54:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:54:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:54:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:54:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:54:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:54:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-12 07:54:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-12 07:54:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:54:45,238 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-12 07:54:45,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:54:45,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685824769] [2024-11-12 07:54:45,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685824769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:54:45,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:54:45,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 07:54:45,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606513666] [2024-11-12 07:54:45,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:54:45,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 07:54:45,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:54:45,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 07:54:45,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:54:45,240 INFO L87 Difference]: Start difference. First operand 624 states and 829 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:54:45,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:54:45,332 INFO L93 Difference]: Finished difference Result 1284 states and 1700 transitions. [2024-11-12 07:54:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:54:45,334 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-12 07:54:45,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:54:45,339 INFO L225 Difference]: With dead ends: 1284 [2024-11-12 07:54:45,340 INFO L226 Difference]: Without dead ends: 663 [2024-11-12 07:54:45,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:54:45,344 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:54:45,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 876 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:54:45,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-12 07:54:45,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 630. [2024-11-12 07:54:45,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 563 states have (on average 1.2699822380106571) internal successors, (715), 566 states have internal predecessors, (715), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-12 07:54:45,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 835 transitions. [2024-11-12 07:54:45,493 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 835 transitions. Word has length 149 [2024-11-12 07:54:45,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:54:45,493 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 835 transitions. [2024-11-12 07:54:45,494 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-12 07:54:45,494 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 835 transitions. [2024-11-12 07:54:45,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-12 07:54:45,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:54:45,497 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:54:45,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 07:54:45,497 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:54:45,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:54:45,498 INFO L85 PathProgramCache]: Analyzing trace with hash -621698327, now seen corresponding path program 1 times [2024-11-12 07:54:45,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:54:45,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555179384] [2024-11-12 07:54:45,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:54:45,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:54:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat