./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.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 cdeaaf68ec6b818190b10daa08c2d0ca8b7505d1cb1ac039886c6ec324698b15 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:56:54,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:56:54,260 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:56:54,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:56:54,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:56:54,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:56:54,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:56:54,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:56:54,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:56:54,299 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:56:54,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:56:54,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:56:54,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:56:54,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:56:54,301 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:56:54,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:56:54,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:56:54,303 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:56:54,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:56:54,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:56:54,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:56:54,308 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:56:54,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:56:54,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:56:54,309 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:56:54,309 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:56:54,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:56:54,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:56:54,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:56:54,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:56:54,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:56:54,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:56:54,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:56:54,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:56:54,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:56:54,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:56:54,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:56:54,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:56:54,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:56:54,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:56:54,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:56:54,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:56:54,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdeaaf68ec6b818190b10daa08c2d0ca8b7505d1cb1ac039886c6ec324698b15 [2024-10-24 11:56:54,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:56:54,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:56:54,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:56:54,650 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:56:54,651 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:56:54,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2024-10-24 11:56:56,173 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:56:56,388 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:56:56,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2024-10-24 11:56:56,402 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0429a49/08bcdaa1403944428f2affdb07cb298b/FLAG5cfa61032 [2024-10-24 11:56:56,415 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0429a49/08bcdaa1403944428f2affdb07cb298b [2024-10-24 11:56:56,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:56:56,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:56:56,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:56:56,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:56:56,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:56:56,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415effb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56, skipping insertion in model container [2024-10-24 11:56:56,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:56:56,645 WARN L248 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-27.i[917,930] [2024-10-24 11:56:56,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:56:56,741 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:56:56,755 WARN L248 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-27.i[917,930] [2024-10-24 11:56:56,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:56:56,822 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:56:56,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56 WrapperNode [2024-10-24 11:56:56,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:56:56,827 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:56:56,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:56:56,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:56:56,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,899 INFO L138 Inliner]: procedures = 26, calls = 152, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2024-10-24 11:56:56,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:56:56,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:56:56,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:56:56,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:56:56,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,951 INFO L175 MemorySlicer]: Split 123 memory accesses to 2 slices as follows [2, 121]. 98 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 12]. The 16 writes are split as follows [0, 16]. [2024-10-24 11:56:56,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:56,989 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:56:56,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:56:56,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:56:56,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:56:56,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (1/1) ... [2024-10-24 11:56:57,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:56:57,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:56:57,032 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) [2024-10-24 11:56:57,039 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 [2024-10-24 11:56:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:56:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 11:56:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 11:56:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 11:56:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 11:56:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:56:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:56:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:56:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 11:56:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:56:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:56:57,227 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:56:57,230 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:56:57,703 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-10-24 11:56:57,703 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:56:57,747 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:56:57,747 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:56:57,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:56:57 BoogieIcfgContainer [2024-10-24 11:56:57,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:56:57,750 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:56:57,751 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:56:57,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:56:57,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:56:56" (1/3) ... [2024-10-24 11:56:57,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c54b12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:56:57, skipping insertion in model container [2024-10-24 11:56:57,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:56:56" (2/3) ... [2024-10-24 11:56:57,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c54b12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:56:57, skipping insertion in model container [2024-10-24 11:56:57,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:56:57" (3/3) ... [2024-10-24 11:56:57,759 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-27.i [2024-10-24 11:56:57,776 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:56:57,777 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:56:57,852 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:56:57,859 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;@56c2ef1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:56:57,860 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:56:57,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-24 11:56:57,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 11:56:57,878 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:56:57,879 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:56:57,879 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:56:57,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:56:57,886 INFO L85 PathProgramCache]: Analyzing trace with hash -708701951, now seen corresponding path program 1 times [2024-10-24 11:56:57,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:56:57,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979916093] [2024-10-24 11:56:57,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:56:57,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:56:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:56:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:56:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:56:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:56:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:56:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:56:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:56:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:56:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:56:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:56:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:56:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:56:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:56:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:56:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:56:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:56:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:56:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:56:58,311 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:56:58,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:56:58,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979916093] [2024-10-24 11:56:58,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979916093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:56:58,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:56:58,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:56:58,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077226824] [2024-10-24 11:56:58,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:56:58,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:56:58,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:56:58,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:56:58,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:56:58,349 INFO L87 Difference]: Start difference. First operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 11:56:58,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:56:58,402 INFO L93 Difference]: Finished difference Result 171 states and 273 transitions. [2024-10-24 11:56:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:56:58,407 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2024-10-24 11:56:58,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:56:58,417 INFO L225 Difference]: With dead ends: 171 [2024-10-24 11:56:58,418 INFO L226 Difference]: Without dead ends: 85 [2024-10-24 11:56:58,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:56:58,428 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:56:58,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:56:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-24 11:56:58,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-24 11:56:58,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-24 11:56:58,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2024-10-24 11:56:58,491 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 126 [2024-10-24 11:56:58,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:56:58,491 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2024-10-24 11:56:58,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 11:56:58,492 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2024-10-24 11:56:58,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 11:56:58,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:56:58,497 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:56:58,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:56:58,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:56:58,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:56:58,499 INFO L85 PathProgramCache]: Analyzing trace with hash -941775073, now seen corresponding path program 1 times [2024-10-24 11:56:58,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:56:58,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102483000] [2024-10-24 11:56:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:56:58,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:56:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:00,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:00,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102483000] [2024-10-24 11:57:00,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102483000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:00,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:00,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:57:00,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74252802] [2024-10-24 11:57:00,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:00,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:57:00,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:00,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:57:00,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:57:00,258 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:00,658 INFO L93 Difference]: Finished difference Result 219 states and 320 transitions. [2024-10-24 11:57:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:57:00,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2024-10-24 11:57:00,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:00,662 INFO L225 Difference]: With dead ends: 219 [2024-10-24 11:57:00,662 INFO L226 Difference]: Without dead ends: 135 [2024-10-24 11:57:00,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:57:00,664 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 57 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:00,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 366 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:57:00,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-10-24 11:57:00,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131. [2024-10-24 11:57:00,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 94 states have (on average 1.297872340425532) internal successors, (122), 94 states have internal predecessors, (122), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:00,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 190 transitions. [2024-10-24 11:57:00,697 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 190 transitions. Word has length 126 [2024-10-24 11:57:00,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:00,699 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 190 transitions. [2024-10-24 11:57:00,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 190 transitions. [2024-10-24 11:57:00,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 11:57:00,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:00,702 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:00,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:57:00,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:00,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:00,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1052369633, now seen corresponding path program 1 times [2024-10-24 11:57:00,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:00,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044925959] [2024-10-24 11:57:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:00,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:01,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:01,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044925959] [2024-10-24 11:57:01,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044925959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:01,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:01,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:57:01,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382269138] [2024-10-24 11:57:01,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:01,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:57:01,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:01,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:57:01,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:57:01,596 INFO L87 Difference]: Start difference. First operand 131 states and 190 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 11:57:02,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:02,008 INFO L93 Difference]: Finished difference Result 224 states and 327 transitions. [2024-10-24 11:57:02,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:57:02,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2024-10-24 11:57:02,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:02,011 INFO L225 Difference]: With dead ends: 224 [2024-10-24 11:57:02,011 INFO L226 Difference]: Without dead ends: 140 [2024-10-24 11:57:02,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:57:02,014 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 113 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:02,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 213 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:57:02,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-24 11:57:02,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2024-10-24 11:57:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 102 states have (on average 1.303921568627451) internal successors, (133), 102 states have internal predecessors, (133), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2024-10-24 11:57:02,052 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 126 [2024-10-24 11:57:02,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:02,053 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2024-10-24 11:57:02,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 11:57:02,054 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2024-10-24 11:57:02,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 11:57:02,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:02,056 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:02,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:57:02,056 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:02,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:02,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1550115519, now seen corresponding path program 1 times [2024-10-24 11:57:02,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:02,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043349792] [2024-10-24 11:57:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:02,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:03,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:03,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:03,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:03,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:03,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:03,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:04,122 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:04,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:04,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043349792] [2024-10-24 11:57:04,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043349792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:04,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:04,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:57:04,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620782673] [2024-10-24 11:57:04,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:04,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:57:04,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:04,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:57:04,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:57:04,126 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:04,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:04,953 INFO L93 Difference]: Finished difference Result 241 states and 350 transitions. [2024-10-24 11:57:04,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 11:57:04,954 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 127 [2024-10-24 11:57:04,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:04,956 INFO L225 Difference]: With dead ends: 241 [2024-10-24 11:57:04,957 INFO L226 Difference]: Without dead ends: 149 [2024-10-24 11:57:04,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:57:04,958 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 248 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:04,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 250 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:57:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-24 11:57:05,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 144. [2024-10-24 11:57:05,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 107 states have (on average 1.2990654205607477) internal successors, (139), 107 states have internal predecessors, (139), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:05,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 207 transitions. [2024-10-24 11:57:05,017 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 207 transitions. Word has length 127 [2024-10-24 11:57:05,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:05,018 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 207 transitions. [2024-10-24 11:57:05,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:05,018 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 207 transitions. [2024-10-24 11:57:05,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 11:57:05,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:05,021 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:05,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:57:05,022 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:05,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:05,022 INFO L85 PathProgramCache]: Analyzing trace with hash 538998269, now seen corresponding path program 1 times [2024-10-24 11:57:05,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:05,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621486800] [2024-10-24 11:57:05,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:05,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:07,282 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:07,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:07,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621486800] [2024-10-24 11:57:07,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621486800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:07,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:07,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:57:07,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639142650] [2024-10-24 11:57:07,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:07,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:57:07,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:07,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:57:07,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:57:07,286 INFO L87 Difference]: Start difference. First operand 144 states and 207 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:07,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:07,937 INFO L93 Difference]: Finished difference Result 282 states and 406 transitions. [2024-10-24 11:57:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:57:07,938 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 127 [2024-10-24 11:57:07,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:07,940 INFO L225 Difference]: With dead ends: 282 [2024-10-24 11:57:07,940 INFO L226 Difference]: Without dead ends: 185 [2024-10-24 11:57:07,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:57:07,942 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 386 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:07,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 288 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:57:07,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-10-24 11:57:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 157. [2024-10-24 11:57:07,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 120 states have internal predecessors, (157), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:07,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 225 transitions. [2024-10-24 11:57:07,990 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 225 transitions. Word has length 127 [2024-10-24 11:57:07,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:07,991 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 225 transitions. [2024-10-24 11:57:07,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:07,992 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 225 transitions. [2024-10-24 11:57:07,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 11:57:07,993 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:07,994 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:07,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 11:57:07,994 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:07,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:07,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1271410916, now seen corresponding path program 1 times [2024-10-24 11:57:07,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:07,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813466504] [2024-10-24 11:57:07,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:07,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:09,138 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:09,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:09,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813466504] [2024-10-24 11:57:09,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813466504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:09,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:09,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:57:09,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644641733] [2024-10-24 11:57:09,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:09,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:57:09,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:09,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:57:09,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:57:09,142 INFO L87 Difference]: Start difference. First operand 157 states and 225 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:09,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:09,550 INFO L93 Difference]: Finished difference Result 359 states and 518 transitions. [2024-10-24 11:57:09,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:57:09,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 128 [2024-10-24 11:57:09,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:09,553 INFO L225 Difference]: With dead ends: 359 [2024-10-24 11:57:09,553 INFO L226 Difference]: Without dead ends: 249 [2024-10-24 11:57:09,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:57:09,555 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 204 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:09,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 345 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:57:09,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-10-24 11:57:09,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 237. [2024-10-24 11:57:09,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 182 states have (on average 1.3241758241758241) internal successors, (241), 182 states have internal predecessors, (241), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 11:57:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 343 transitions. [2024-10-24 11:57:09,618 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 343 transitions. Word has length 128 [2024-10-24 11:57:09,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:09,619 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 343 transitions. [2024-10-24 11:57:09,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:09,619 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 343 transitions. [2024-10-24 11:57:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 11:57:09,621 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:09,621 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:09,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 11:57:09,621 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:09,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:09,622 INFO L85 PathProgramCache]: Analyzing trace with hash -613481340, now seen corresponding path program 1 times [2024-10-24 11:57:09,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:09,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659863074] [2024-10-24 11:57:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:09,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:10,163 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:10,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:10,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659863074] [2024-10-24 11:57:10,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659863074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:10,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:10,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:57:10,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950996786] [2024-10-24 11:57:10,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:10,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:57:10,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:10,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:57:10,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:57:10,165 INFO L87 Difference]: Start difference. First operand 237 states and 343 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 11:57:10,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:10,630 INFO L93 Difference]: Finished difference Result 408 states and 590 transitions. [2024-10-24 11:57:10,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:57:10,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129 [2024-10-24 11:57:10,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:10,633 INFO L225 Difference]: With dead ends: 408 [2024-10-24 11:57:10,633 INFO L226 Difference]: Without dead ends: 298 [2024-10-24 11:57:10,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:57:10,634 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 135 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:10,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 309 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:57:10,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-10-24 11:57:10,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 237. [2024-10-24 11:57:10,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 182 states have (on average 1.3186813186813187) internal successors, (240), 182 states have internal predecessors, (240), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 11:57:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 342 transitions. [2024-10-24 11:57:10,681 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 342 transitions. Word has length 129 [2024-10-24 11:57:10,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:10,682 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 342 transitions. [2024-10-24 11:57:10,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 11:57:10,682 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 342 transitions. [2024-10-24 11:57:10,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 11:57:10,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:10,683 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:10,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 11:57:10,684 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:10,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:10,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1058583998, now seen corresponding path program 1 times [2024-10-24 11:57:10,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:10,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121062885] [2024-10-24 11:57:10,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:10,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,164 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:11,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:11,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121062885] [2024-10-24 11:57:11,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121062885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:11,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:11,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:57:11,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620681508] [2024-10-24 11:57:11,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:11,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:57:11,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:11,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:57:11,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:57:11,167 INFO L87 Difference]: Start difference. First operand 237 states and 342 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:11,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:11,623 INFO L93 Difference]: Finished difference Result 458 states and 661 transitions. [2024-10-24 11:57:11,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:57:11,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-10-24 11:57:11,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:11,627 INFO L225 Difference]: With dead ends: 458 [2024-10-24 11:57:11,627 INFO L226 Difference]: Without dead ends: 261 [2024-10-24 11:57:11,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:57:11,629 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 118 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:11,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 260 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:57:11,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-10-24 11:57:11,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 191. [2024-10-24 11:57:11,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 154 states have (on average 1.3376623376623376) internal successors, (206), 154 states have internal predecessors, (206), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:11,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 274 transitions. [2024-10-24 11:57:11,662 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 274 transitions. Word has length 129 [2024-10-24 11:57:11,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:11,663 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 274 transitions. [2024-10-24 11:57:11,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:11,664 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 274 transitions. [2024-10-24 11:57:11,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:11,665 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:11,665 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:11,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 11:57:11,666 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:11,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:11,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1933859363, now seen corresponding path program 1 times [2024-10-24 11:57:11,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:11,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714584026] [2024-10-24 11:57:11,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:11,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:11,756 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:11,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:11,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714584026] [2024-10-24 11:57:11,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714584026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:11,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:11,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 11:57:11,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977526795] [2024-10-24 11:57:11,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:11,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 11:57:11,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:11,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 11:57:11,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:57:11,760 INFO L87 Difference]: Start difference. First operand 191 states and 274 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:11,801 INFO L93 Difference]: Finished difference Result 383 states and 551 transitions. [2024-10-24 11:57:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 11:57:11,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-10-24 11:57:11,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:11,804 INFO L225 Difference]: With dead ends: 383 [2024-10-24 11:57:11,804 INFO L226 Difference]: Without dead ends: 193 [2024-10-24 11:57:11,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:57:11,805 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:11,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 233 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:57:11,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-10-24 11:57:11,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-10-24 11:57:11,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 156 states have internal predecessors, (208), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:11,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 276 transitions. [2024-10-24 11:57:11,835 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 276 transitions. Word has length 130 [2024-10-24 11:57:11,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:11,836 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 276 transitions. [2024-10-24 11:57:11,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:11,836 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 276 transitions. [2024-10-24 11:57:11,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:11,837 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:11,838 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:11,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 11:57:11,838 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:11,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:11,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1253800993, now seen corresponding path program 1 times [2024-10-24 11:57:11,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:11,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888618074] [2024-10-24 11:57:11,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:11,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,223 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:12,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:12,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888618074] [2024-10-24 11:57:12,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888618074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:12,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:12,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:57:12,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654865295] [2024-10-24 11:57:12,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:12,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:57:12,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:12,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:57:12,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:57:12,225 INFO L87 Difference]: Start difference. First operand 193 states and 276 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:12,543 INFO L93 Difference]: Finished difference Result 447 states and 638 transitions. [2024-10-24 11:57:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:57:12,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-10-24 11:57:12,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:12,546 INFO L225 Difference]: With dead ends: 447 [2024-10-24 11:57:12,546 INFO L226 Difference]: Without dead ends: 255 [2024-10-24 11:57:12,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:57:12,548 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 156 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:12,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 242 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:57:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-10-24 11:57:12,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 211. [2024-10-24 11:57:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 174 states have (on average 1.3218390804597702) internal successors, (230), 174 states have internal predecessors, (230), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 298 transitions. [2024-10-24 11:57:12,586 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 298 transitions. Word has length 130 [2024-10-24 11:57:12,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:12,587 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 298 transitions. [2024-10-24 11:57:12,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:12,587 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 298 transitions. [2024-10-24 11:57:12,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:12,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:12,591 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:12,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 11:57:12,591 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:12,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:12,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1540832353, now seen corresponding path program 1 times [2024-10-24 11:57:12,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:12,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893865744] [2024-10-24 11:57:12,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:12,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:12,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:12,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893865744] [2024-10-24 11:57:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893865744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:12,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:12,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:57:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054135745] [2024-10-24 11:57:12,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:12,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:57:12,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:12,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:57:12,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:57:12,737 INFO L87 Difference]: Start difference. First operand 211 states and 298 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:12,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:12,796 INFO L93 Difference]: Finished difference Result 427 states and 603 transitions. [2024-10-24 11:57:12,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:57:12,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-10-24 11:57:12,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:12,798 INFO L225 Difference]: With dead ends: 427 [2024-10-24 11:57:12,798 INFO L226 Difference]: Without dead ends: 217 [2024-10-24 11:57:12,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:57:12,799 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:12,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 457 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:57:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-24 11:57:12,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-10-24 11:57:12,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 180 states have (on average 1.3111111111111111) internal successors, (236), 180 states have internal predecessors, (236), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:12,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 304 transitions. [2024-10-24 11:57:12,840 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 304 transitions. Word has length 130 [2024-10-24 11:57:12,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:12,841 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 304 transitions. [2024-10-24 11:57:12,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:12,841 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 304 transitions. [2024-10-24 11:57:12,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:12,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:12,842 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:12,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 11:57:12,843 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:12,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:12,843 INFO L85 PathProgramCache]: Analyzing trace with hash 860773983, now seen corresponding path program 1 times [2024-10-24 11:57:12,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:12,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013418197] [2024-10-24 11:57:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:12,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:13,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:13,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013418197] [2024-10-24 11:57:13,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013418197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:13,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:13,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 11:57:13,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925131154] [2024-10-24 11:57:13,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:13,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 11:57:13,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:13,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 11:57:13,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:57:13,926 INFO L87 Difference]: Start difference. First operand 217 states and 304 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:14,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:14,412 INFO L93 Difference]: Finished difference Result 483 states and 681 transitions. [2024-10-24 11:57:14,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:57:14,413 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2024-10-24 11:57:14,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:14,415 INFO L225 Difference]: With dead ends: 483 [2024-10-24 11:57:14,415 INFO L226 Difference]: Without dead ends: 267 [2024-10-24 11:57:14,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:57:14,416 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 228 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:14,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 217 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:57:14,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-10-24 11:57:14,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 240. [2024-10-24 11:57:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 203 states have (on average 1.3251231527093597) internal successors, (269), 203 states have internal predecessors, (269), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 337 transitions. [2024-10-24 11:57:14,449 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 337 transitions. Word has length 130 [2024-10-24 11:57:14,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:14,449 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 337 transitions. [2024-10-24 11:57:14,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:14,450 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 337 transitions. [2024-10-24 11:57:14,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:14,451 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:14,451 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:14,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 11:57:14,452 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:14,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:14,452 INFO L85 PathProgramCache]: Analyzing trace with hash 262512057, now seen corresponding path program 1 times [2024-10-24 11:57:14,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:14,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979802663] [2024-10-24 11:57:14,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:14,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:16,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:16,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979802663] [2024-10-24 11:57:16,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979802663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:16,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:16,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 11:57:16,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003257735] [2024-10-24 11:57:16,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:16,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 11:57:16,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:16,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 11:57:16,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-24 11:57:16,654 INFO L87 Difference]: Start difference. First operand 240 states and 337 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:17,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:17,644 INFO L93 Difference]: Finished difference Result 640 states and 895 transitions. [2024-10-24 11:57:17,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:57:17,645 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-10-24 11:57:17,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:17,648 INFO L225 Difference]: With dead ends: 640 [2024-10-24 11:57:17,648 INFO L226 Difference]: Without dead ends: 401 [2024-10-24 11:57:17,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2024-10-24 11:57:17,650 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 291 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:17,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 410 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:57:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-10-24 11:57:17,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 349. [2024-10-24 11:57:17,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 312 states have (on average 1.3461538461538463) internal successors, (420), 312 states have internal predecessors, (420), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:17,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 488 transitions. [2024-10-24 11:57:17,702 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 488 transitions. Word has length 130 [2024-10-24 11:57:17,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:17,703 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 488 transitions. [2024-10-24 11:57:17,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 488 transitions. [2024-10-24 11:57:17,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:17,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:17,705 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:17,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 11:57:17,706 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:17,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:17,706 INFO L85 PathProgramCache]: Analyzing trace with hash 403060667, now seen corresponding path program 1 times [2024-10-24 11:57:17,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:17,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730448542] [2024-10-24 11:57:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:17,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:17,805 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:17,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:17,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730448542] [2024-10-24 11:57:17,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730448542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:17,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:17,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 11:57:17,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809472389] [2024-10-24 11:57:17,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:17,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 11:57:17,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:17,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 11:57:17,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:57:17,808 INFO L87 Difference]: Start difference. First operand 349 states and 488 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:17,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:17,869 INFO L93 Difference]: Finished difference Result 676 states and 946 transitions. [2024-10-24 11:57:17,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 11:57:17,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-10-24 11:57:17,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:17,872 INFO L225 Difference]: With dead ends: 676 [2024-10-24 11:57:17,872 INFO L226 Difference]: Without dead ends: 328 [2024-10-24 11:57:17,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:57:17,874 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:17,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:57:17,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-10-24 11:57:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2024-10-24 11:57:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 291 states have (on average 1.3367697594501717) internal successors, (389), 291 states have internal predecessors, (389), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:17,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 457 transitions. [2024-10-24 11:57:17,915 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 457 transitions. Word has length 130 [2024-10-24 11:57:17,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:17,915 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 457 transitions. [2024-10-24 11:57:17,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:17,916 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 457 transitions. [2024-10-24 11:57:17,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:17,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:17,917 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:17,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 11:57:17,918 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:17,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:17,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1522627161, now seen corresponding path program 1 times [2024-10-24 11:57:17,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:17,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879506692] [2024-10-24 11:57:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:17,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:19,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:19,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879506692] [2024-10-24 11:57:19,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879506692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:19,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:19,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 11:57:19,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872140254] [2024-10-24 11:57:19,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:19,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 11:57:19,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:19,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 11:57:19,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-24 11:57:19,591 INFO L87 Difference]: Start difference. First operand 328 states and 457 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 11:57:20,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:20,716 INFO L93 Difference]: Finished difference Result 830 states and 1152 transitions. [2024-10-24 11:57:20,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 11:57:20,717 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2024-10-24 11:57:20,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:20,722 INFO L225 Difference]: With dead ends: 830 [2024-10-24 11:57:20,722 INFO L226 Difference]: Without dead ends: 503 [2024-10-24 11:57:20,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2024-10-24 11:57:20,724 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 206 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:20,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 480 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 11:57:20,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-10-24 11:57:20,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 407. [2024-10-24 11:57:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 370 states have (on average 1.327027027027027) internal successors, (491), 370 states have internal predecessors, (491), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 559 transitions. [2024-10-24 11:57:20,775 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 559 transitions. Word has length 130 [2024-10-24 11:57:20,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:20,776 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 559 transitions. [2024-10-24 11:57:20,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 11:57:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 559 transitions. [2024-10-24 11:57:20,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:20,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:20,778 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:20,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 11:57:20,779 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:20,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:20,779 INFO L85 PathProgramCache]: Analyzing trace with hash -821562583, now seen corresponding path program 1 times [2024-10-24 11:57:20,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:20,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492245093] [2024-10-24 11:57:20,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:20,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:22,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:23,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:23,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:23,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:23,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:23,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:23,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492245093] [2024-10-24 11:57:23,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492245093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:23,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:23,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 11:57:23,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487940801] [2024-10-24 11:57:23,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:23,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 11:57:23,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:23,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 11:57:23,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-10-24 11:57:23,049 INFO L87 Difference]: Start difference. First operand 407 states and 559 transitions. Second operand has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-24 11:57:24,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:24,047 INFO L93 Difference]: Finished difference Result 885 states and 1214 transitions. [2024-10-24 11:57:24,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 11:57:24,047 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 130 [2024-10-24 11:57:24,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:24,050 INFO L225 Difference]: With dead ends: 885 [2024-10-24 11:57:24,050 INFO L226 Difference]: Without dead ends: 479 [2024-10-24 11:57:24,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-10-24 11:57:24,052 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 297 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:24,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 366 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:57:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-10-24 11:57:24,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 407. [2024-10-24 11:57:24,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 370 states have (on average 1.3054054054054054) internal successors, (483), 370 states have internal predecessors, (483), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 11:57:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 551 transitions. [2024-10-24 11:57:24,097 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 551 transitions. Word has length 130 [2024-10-24 11:57:24,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:24,099 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 551 transitions. [2024-10-24 11:57:24,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-24 11:57:24,099 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 551 transitions. [2024-10-24 11:57:24,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:24,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:24,101 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:24,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 11:57:24,101 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:24,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:24,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1083396393, now seen corresponding path program 1 times [2024-10-24 11:57:24,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:24,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527650266] [2024-10-24 11:57:24,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:24,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:26,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:26,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:26,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:26,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:26,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:26,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:26,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:26,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:27,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:27,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:27,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:27,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:27,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:27,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:27,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:27,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:27,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:27,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:27,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527650266] [2024-10-24 11:57:27,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527650266] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:27,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:27,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 11:57:27,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317963526] [2024-10-24 11:57:27,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:27,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 11:57:27,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:27,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 11:57:27,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:57:27,156 INFO L87 Difference]: Start difference. First operand 407 states and 551 transitions. Second operand has 16 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 16 states have internal predecessors, (48), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 6 states have call successors, (17) [2024-10-24 11:57:28,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:28,432 INFO L93 Difference]: Finished difference Result 893 states and 1208 transitions. [2024-10-24 11:57:28,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 11:57:28,434 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 16 states have internal predecessors, (48), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 6 states have call successors, (17) Word has length 130 [2024-10-24 11:57:28,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:28,436 INFO L225 Difference]: With dead ends: 893 [2024-10-24 11:57:28,436 INFO L226 Difference]: Without dead ends: 487 [2024-10-24 11:57:28,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2024-10-24 11:57:28,438 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 206 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:28,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 401 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 11:57:28,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-10-24 11:57:28,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 483. [2024-10-24 11:57:28,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 440 states have (on average 1.2977272727272726) internal successors, (571), 442 states have internal predecessors, (571), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 11:57:28,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 647 transitions. [2024-10-24 11:57:28,504 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 647 transitions. Word has length 130 [2024-10-24 11:57:28,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:28,505 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 647 transitions. [2024-10-24 11:57:28,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 16 states have internal predecessors, (48), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 6 states have call successors, (17) [2024-10-24 11:57:28,505 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 647 transitions. [2024-10-24 11:57:28,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:28,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:28,507 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:28,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 11:57:28,507 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:28,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:28,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1784460971, now seen corresponding path program 1 times [2024-10-24 11:57:28,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:28,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68229143] [2024-10-24 11:57:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:28,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:30,463 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:30,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:30,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68229143] [2024-10-24 11:57:30,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68229143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:30,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:30,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 11:57:30,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012193807] [2024-10-24 11:57:30,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:30,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 11:57:30,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:30,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 11:57:30,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:57:30,466 INFO L87 Difference]: Start difference. First operand 483 states and 647 transitions. Second operand has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:31,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:31,626 INFO L93 Difference]: Finished difference Result 968 states and 1295 transitions. [2024-10-24 11:57:31,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 11:57:31,627 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2024-10-24 11:57:31,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:31,632 INFO L225 Difference]: With dead ends: 968 [2024-10-24 11:57:31,632 INFO L226 Difference]: Without dead ends: 486 [2024-10-24 11:57:31,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-10-24 11:57:31,634 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 278 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:31,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 596 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 11:57:31,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-10-24 11:57:31,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 483. [2024-10-24 11:57:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 440 states have (on average 1.2795454545454545) internal successors, (563), 442 states have internal predecessors, (563), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 11:57:31,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 639 transitions. [2024-10-24 11:57:31,722 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 639 transitions. Word has length 130 [2024-10-24 11:57:31,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:31,722 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 639 transitions. [2024-10-24 11:57:31,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:31,723 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 639 transitions. [2024-10-24 11:57:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:31,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:31,724 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:31,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 11:57:31,725 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:31,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1063362207, now seen corresponding path program 1 times [2024-10-24 11:57:31,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:31,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642980970] [2024-10-24 11:57:31,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:31,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:32,416 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:32,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:32,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642980970] [2024-10-24 11:57:32,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642980970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:32,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:32,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:57:32,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6014767] [2024-10-24 11:57:32,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:32,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:57:32,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:32,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:57:32,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:57:32,419 INFO L87 Difference]: Start difference. First operand 483 states and 639 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:32,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:32,910 INFO L93 Difference]: Finished difference Result 1047 states and 1390 transitions. [2024-10-24 11:57:32,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:57:32,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-10-24 11:57:32,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:32,915 INFO L225 Difference]: With dead ends: 1047 [2024-10-24 11:57:32,915 INFO L226 Difference]: Without dead ends: 565 [2024-10-24 11:57:32,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:57:32,917 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 181 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:32,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 280 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:57:32,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-10-24 11:57:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 483. [2024-10-24 11:57:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 440 states have (on average 1.2704545454545455) internal successors, (559), 442 states have internal predecessors, (559), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 11:57:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 635 transitions. [2024-10-24 11:57:33,004 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 635 transitions. Word has length 130 [2024-10-24 11:57:33,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:33,005 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 635 transitions. [2024-10-24 11:57:33,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:33,005 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 635 transitions. [2024-10-24 11:57:33,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 11:57:33,007 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:33,007 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:33,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 11:57:33,008 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:33,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:33,009 INFO L85 PathProgramCache]: Analyzing trace with hash 465100281, now seen corresponding path program 1 times [2024-10-24 11:57:33,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:33,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486433060] [2024-10-24 11:57:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:33,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:33,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486433060] [2024-10-24 11:57:33,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486433060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:33,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:33,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:57:33,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170128190] [2024-10-24 11:57:33,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:33,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:57:33,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:33,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:57:33,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:57:33,239 INFO L87 Difference]: Start difference. First operand 483 states and 635 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:33,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:33,468 INFO L93 Difference]: Finished difference Result 744 states and 979 transitions. [2024-10-24 11:57:33,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:57:33,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-10-24 11:57:33,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:33,473 INFO L225 Difference]: With dead ends: 744 [2024-10-24 11:57:33,473 INFO L226 Difference]: Without dead ends: 472 [2024-10-24 11:57:33,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:57:33,475 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 17 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:33,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 178 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:57:33,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-10-24 11:57:33,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 466. [2024-10-24 11:57:33,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 423 states have (on average 1.2647754137115839) internal successors, (535), 425 states have internal predecessors, (535), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 11:57:33,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 611 transitions. [2024-10-24 11:57:33,552 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 611 transitions. Word has length 130 [2024-10-24 11:57:33,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:33,552 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 611 transitions. [2024-10-24 11:57:33,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:33,552 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 611 transitions. [2024-10-24 11:57:33,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 11:57:33,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:33,554 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:33,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 11:57:33,554 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:33,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:33,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1567230613, now seen corresponding path program 1 times [2024-10-24 11:57:33,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:33,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842266140] [2024-10-24 11:57:33,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:33,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:34,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:34,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842266140] [2024-10-24 11:57:34,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842266140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:34,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:34,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 11:57:34,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342495810] [2024-10-24 11:57:34,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:34,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 11:57:34,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:34,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 11:57:34,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:57:34,376 INFO L87 Difference]: Start difference. First operand 466 states and 611 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:34,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:34,993 INFO L93 Difference]: Finished difference Result 905 states and 1188 transitions. [2024-10-24 11:57:34,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:57:34,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 131 [2024-10-24 11:57:34,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:34,997 INFO L225 Difference]: With dead ends: 905 [2024-10-24 11:57:34,997 INFO L226 Difference]: Without dead ends: 440 [2024-10-24 11:57:34,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:57:34,999 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 145 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:34,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 202 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:57:35,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-10-24 11:57:35,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2024-10-24 11:57:35,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 386 states have (on average 1.2435233160621761) internal successors, (480), 389 states have internal predecessors, (480), 46 states have call successors, (46), 6 states have call predecessors, (46), 6 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-24 11:57:35,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 572 transitions. [2024-10-24 11:57:35,084 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 572 transitions. Word has length 131 [2024-10-24 11:57:35,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:35,084 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 572 transitions. [2024-10-24 11:57:35,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 11:57:35,085 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 572 transitions. [2024-10-24 11:57:35,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:57:35,086 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:35,086 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:35,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 11:57:35,087 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:35,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:35,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1807281259, now seen corresponding path program 1 times [2024-10-24 11:57:35,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:35,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112227281] [2024-10-24 11:57:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:35,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:35,752 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:35,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:35,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112227281] [2024-10-24 11:57:35,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112227281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:35,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:35,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 11:57:35,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443814220] [2024-10-24 11:57:35,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:35,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 11:57:35,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:35,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 11:57:35,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:57:35,768 INFO L87 Difference]: Start difference. First operand 439 states and 572 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:36,326 INFO L93 Difference]: Finished difference Result 957 states and 1250 transitions. [2024-10-24 11:57:36,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:57:36,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-10-24 11:57:36,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:36,330 INFO L225 Difference]: With dead ends: 957 [2024-10-24 11:57:36,330 INFO L226 Difference]: Without dead ends: 543 [2024-10-24 11:57:36,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:57:36,331 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 128 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:36,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 452 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:57:36,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-24 11:57:36,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 505. [2024-10-24 11:57:36,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 452 states have (on average 1.2433628318584071) internal successors, (562), 455 states have internal predecessors, (562), 46 states have call successors, (46), 6 states have call predecessors, (46), 6 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-24 11:57:36,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 654 transitions. [2024-10-24 11:57:36,418 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 654 transitions. Word has length 134 [2024-10-24 11:57:36,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:36,418 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 654 transitions. [2024-10-24 11:57:36,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:36,419 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 654 transitions. [2024-10-24 11:57:36,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:57:36,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:36,420 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:36,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 11:57:36,421 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:36,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:36,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1303487422, now seen corresponding path program 1 times [2024-10-24 11:57:36,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:36,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762422315] [2024-10-24 11:57:36,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:36,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:37,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:37,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762422315] [2024-10-24 11:57:37,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762422315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:37,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:37,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:57:37,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466312115] [2024-10-24 11:57:37,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:37,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:57:37,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:37,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:57:37,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:57:37,713 INFO L87 Difference]: Start difference. First operand 505 states and 654 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:38,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:38,386 INFO L93 Difference]: Finished difference Result 1135 states and 1463 transitions. [2024-10-24 11:57:38,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:57:38,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-10-24 11:57:38,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:38,391 INFO L225 Difference]: With dead ends: 1135 [2024-10-24 11:57:38,391 INFO L226 Difference]: Without dead ends: 655 [2024-10-24 11:57:38,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:57:38,393 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 209 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:38,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 249 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:57:38,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-10-24 11:57:38,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 617. [2024-10-24 11:57:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 564 states have (on average 1.2287234042553192) internal successors, (693), 567 states have internal predecessors, (693), 46 states have call successors, (46), 6 states have call predecessors, (46), 6 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-24 11:57:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 785 transitions. [2024-10-24 11:57:38,538 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 785 transitions. Word has length 134 [2024-10-24 11:57:38,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:38,538 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 785 transitions. [2024-10-24 11:57:38,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:38,539 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 785 transitions. [2024-10-24 11:57:38,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:57:38,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:38,540 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:38,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 11:57:38,540 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:38,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:38,541 INFO L85 PathProgramCache]: Analyzing trace with hash -192655791, now seen corresponding path program 1 times [2024-10-24 11:57:38,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:38,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437468652] [2024-10-24 11:57:38,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:38,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:38,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:38,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437468652] [2024-10-24 11:57:38,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437468652] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:38,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:38,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:57:38,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013345401] [2024-10-24 11:57:38,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:38,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:57:38,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:38,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:57:38,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:57:38,748 INFO L87 Difference]: Start difference. First operand 617 states and 785 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:39,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:39,043 INFO L93 Difference]: Finished difference Result 1311 states and 1668 transitions. [2024-10-24 11:57:39,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:57:39,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-10-24 11:57:39,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:39,048 INFO L225 Difference]: With dead ends: 1311 [2024-10-24 11:57:39,048 INFO L226 Difference]: Without dead ends: 719 [2024-10-24 11:57:39,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:57:39,049 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 51 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:39,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 294 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:57:39,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-10-24 11:57:39,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 643. [2024-10-24 11:57:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 590 states have (on average 1.2186440677966102) internal successors, (719), 593 states have internal predecessors, (719), 46 states have call successors, (46), 6 states have call predecessors, (46), 6 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-24 11:57:39,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 811 transitions. [2024-10-24 11:57:39,197 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 811 transitions. Word has length 134 [2024-10-24 11:57:39,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:39,197 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 811 transitions. [2024-10-24 11:57:39,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 811 transitions. [2024-10-24 11:57:39,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:57:39,199 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:39,199 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:39,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 11:57:39,199 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:39,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:39,200 INFO L85 PathProgramCache]: Analyzing trace with hash 991542824, now seen corresponding path program 1 times [2024-10-24 11:57:39,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:39,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785311147] [2024-10-24 11:57:39,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:39,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:40,095 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:40,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:40,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785311147] [2024-10-24 11:57:40,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785311147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:40,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:40,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:57:40,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352381059] [2024-10-24 11:57:40,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:40,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:57:40,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:40,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:57:40,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:57:40,097 INFO L87 Difference]: Start difference. First operand 643 states and 811 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 11:57:40,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:40,765 INFO L93 Difference]: Finished difference Result 1505 states and 1896 transitions. [2024-10-24 11:57:40,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:57:40,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-10-24 11:57:40,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:40,771 INFO L225 Difference]: With dead ends: 1505 [2024-10-24 11:57:40,771 INFO L226 Difference]: Without dead ends: 887 [2024-10-24 11:57:40,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:57:40,773 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 236 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:40,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 236 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:57:40,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-10-24 11:57:40,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 739. [2024-10-24 11:57:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 686 states have (on average 1.2230320699708455) internal successors, (839), 689 states have internal predecessors, (839), 46 states have call successors, (46), 6 states have call predecessors, (46), 6 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-24 11:57:40,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 931 transitions. [2024-10-24 11:57:40,878 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 931 transitions. Word has length 134 [2024-10-24 11:57:40,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:40,879 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 931 transitions. [2024-10-24 11:57:40,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 11:57:40,880 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 931 transitions. [2024-10-24 11:57:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:57:40,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:40,882 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:40,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 11:57:40,882 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:40,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:40,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1578348838, now seen corresponding path program 1 times [2024-10-24 11:57:40,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:40,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051346446] [2024-10-24 11:57:40,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:40,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:41,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:42,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:42,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:42,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:42,016 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-10-24 11:57:42,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:42,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051346446] [2024-10-24 11:57:42,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051346446] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:57:42,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293134598] [2024-10-24 11:57:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:42,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:57:42,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:57:42,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 11:57:42,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 11:57:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:42,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-24 11:57:42,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:57:42,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-24 11:57:42,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-24 11:57:43,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-24 11:57:43,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-24 11:57:43,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-24 11:57:43,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-24 11:57:43,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 11:57:43,976 INFO L349 Elim1Store]: treesize reduction 60, result has 41.7 percent of original size [2024-10-24 11:57:43,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 62 [2024-10-24 11:57:44,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-24 11:57:44,083 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 165 proven. 195 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-10-24 11:57:44,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:57:48,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293134598] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:57:48,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 11:57:48,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2024-10-24 11:57:48,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679601401] [2024-10-24 11:57:48,288 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 11:57:48,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 11:57:48,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:48,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 11:57:48,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=389, Unknown=1, NotChecked=0, Total=462 [2024-10-24 11:57:48,292 INFO L87 Difference]: Start difference. First operand 739 states and 931 transitions. Second operand has 19 states, 17 states have (on average 5.352941176470588) internal successors, (91), 19 states have internal predecessors, (91), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2024-10-24 11:57:50,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:50,728 INFO L93 Difference]: Finished difference Result 1364 states and 1710 transitions. [2024-10-24 11:57:50,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:57:50,729 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.352941176470588) internal successors, (91), 19 states have internal predecessors, (91), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) Word has length 134 [2024-10-24 11:57:50,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:50,733 INFO L225 Difference]: With dead ends: 1364 [2024-10-24 11:57:50,733 INFO L226 Difference]: Without dead ends: 868 [2024-10-24 11:57:50,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=206, Invalid=785, Unknown=1, NotChecked=0, Total=992 [2024-10-24 11:57:50,735 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 266 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:50,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 409 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 11:57:50,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-10-24 11:57:50,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 860. [2024-10-24 11:57:50,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 790 states have (on average 1.2139240506329114) internal successors, (959), 797 states have internal predecessors, (959), 58 states have call successors, (58), 11 states have call predecessors, (58), 11 states have return successors, (58), 51 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-24 11:57:50,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1075 transitions. [2024-10-24 11:57:50,869 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1075 transitions. Word has length 134 [2024-10-24 11:57:50,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:50,869 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 1075 transitions. [2024-10-24 11:57:50,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.352941176470588) internal successors, (91), 19 states have internal predecessors, (91), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2024-10-24 11:57:50,870 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1075 transitions. [2024-10-24 11:57:50,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:57:50,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:50,871 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:50,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 11:57:51,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-24 11:57:51,072 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:51,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:51,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1217686626, now seen corresponding path program 1 times [2024-10-24 11:57:51,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:51,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699924872] [2024-10-24 11:57:51,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:51,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:51,933 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:51,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:51,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699924872] [2024-10-24 11:57:51,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699924872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:51,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:51,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:57:51,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280519569] [2024-10-24 11:57:51,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:51,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:57:51,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:51,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:57:51,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:57:51,935 INFO L87 Difference]: Start difference. First operand 860 states and 1075 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:52,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:57:52,922 INFO L93 Difference]: Finished difference Result 1485 states and 1860 transitions. [2024-10-24 11:57:52,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:57:52,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-10-24 11:57:52,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:57:52,928 INFO L225 Difference]: With dead ends: 1485 [2024-10-24 11:57:52,929 INFO L226 Difference]: Without dead ends: 928 [2024-10-24 11:57:52,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:57:52,930 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 260 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 11:57:52,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 277 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 11:57:52,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-10-24 11:57:53,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 860. [2024-10-24 11:57:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 790 states have (on average 1.2088607594936709) internal successors, (955), 797 states have internal predecessors, (955), 58 states have call successors, (58), 11 states have call predecessors, (58), 11 states have return successors, (58), 51 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-24 11:57:53,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1071 transitions. [2024-10-24 11:57:53,077 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1071 transitions. Word has length 134 [2024-10-24 11:57:53,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:57:53,078 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 1071 transitions. [2024-10-24 11:57:53,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 11:57:53,078 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1071 transitions. [2024-10-24 11:57:53,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:57:53,080 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:57:53,080 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:57:53,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 11:57:53,080 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:57:53,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:57:53,081 INFO L85 PathProgramCache]: Analyzing trace with hash 408340000, now seen corresponding path program 1 times [2024-10-24 11:57:53,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:57:53,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158191946] [2024-10-24 11:57:53,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:57:53,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:57:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:57:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:57:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:57:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:57:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:57:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:57:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:57:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:57:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:57:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:57:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:57:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:57:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:57:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:57:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:57:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:57:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:57:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:57:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 11:57:55,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:57:55,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158191946] [2024-10-24 11:57:55,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158191946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:57:55,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:57:55,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 11:57:55,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612191441] [2024-10-24 11:57:55,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:57:55,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 11:57:55,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:57:55,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 11:57:55,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:57:55,945 INFO L87 Difference]: Start difference. First operand 860 states and 1071 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)